Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/routes/mapper.py @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """Mapper and Sub-Mapper""" |
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2 import collections |
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3 import itertools as it |
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4 import re |
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5 import threading |
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6 |
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7 from repoze.lru import LRUCache |
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8 import six |
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9 |
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10 from routes import request_config |
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11 from routes.util import ( |
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12 controller_scan, |
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13 RoutesException, |
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14 as_unicode |
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15 ) |
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16 from routes.route import Route |
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17 |
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18 |
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19 COLLECTION_ACTIONS = ['index', 'create', 'new'] |
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20 MEMBER_ACTIONS = ['show', 'update', 'delete', 'edit'] |
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21 |
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22 |
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23 def strip_slashes(name): |
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24 """Remove slashes from the beginning and end of a part/URL.""" |
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25 if name.startswith('/'): |
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26 name = name[1:] |
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27 if name.endswith('/'): |
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28 name = name[:-1] |
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29 return name |
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30 |
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31 |
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32 class SubMapperParent(object): |
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33 """Base class for Mapper and SubMapper, both of which may be the parent |
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34 of SubMapper objects |
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35 """ |
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36 |
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37 def submapper(self, **kargs): |
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38 """Create a partial version of the Mapper with the designated |
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39 options set |
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40 |
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41 This results in a :class:`routes.mapper.SubMapper` object. |
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42 |
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43 If keyword arguments provided to this method also exist in the |
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44 keyword arguments provided to the submapper, their values will |
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45 be merged with the saved options going first. |
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46 |
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47 In addition to :class:`routes.route.Route` arguments, submapper |
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48 can also take a ``path_prefix`` argument which will be |
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49 prepended to the path of all routes that are connected. |
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50 |
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51 Example:: |
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52 |
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53 >>> map = Mapper(controller_scan=None) |
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54 >>> map.connect('home', '/', controller='home', action='splash') |
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55 >>> map.matchlist[0].name == 'home' |
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56 True |
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57 >>> m = map.submapper(controller='home') |
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58 >>> m.connect('index', '/index', action='index') |
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59 >>> map.matchlist[1].name == 'index' |
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60 True |
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61 >>> map.matchlist[1].defaults['controller'] == 'home' |
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62 True |
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63 |
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64 Optional ``collection_name`` and ``resource_name`` arguments are |
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65 used in the generation of route names by the ``action`` and |
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66 ``link`` methods. These in turn are used by the ``index``, |
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67 ``new``, ``create``, ``show``, ``edit``, ``update`` and |
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68 ``delete`` methods which may be invoked indirectly by listing |
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69 them in the ``actions`` argument. If the ``formatted`` argument |
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70 is set to ``True`` (the default), generated paths are given the |
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71 suffix '{.format}' which matches or generates an optional format |
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72 extension. |
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73 |
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74 Example:: |
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75 |
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76 >>> from routes.util import url_for |
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77 >>> map = Mapper(controller_scan=None) |
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78 >>> m = map.submapper(path_prefix='/entries', collection_name='entries', resource_name='entry', actions=['index', 'new']) |
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79 >>> url_for('entries') == '/entries' |
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80 True |
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81 >>> url_for('new_entry', format='xml') == '/entries/new.xml' |
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82 True |
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83 |
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84 """ |
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85 return SubMapper(self, **kargs) |
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86 |
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87 def collection(self, collection_name, resource_name, path_prefix=None, |
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88 member_prefix='/{id}', controller=None, |
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89 collection_actions=COLLECTION_ACTIONS, |
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90 member_actions=MEMBER_ACTIONS, member_options=None, |
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91 **kwargs): |
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92 """Create a submapper that represents a collection. |
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93 |
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94 This results in a :class:`routes.mapper.SubMapper` object, with a |
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95 ``member`` property of the same type that represents the collection's |
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96 member resources. |
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97 |
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98 Its interface is the same as the ``submapper`` together with |
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99 ``member_prefix``, ``member_actions`` and ``member_options`` |
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100 which are passed to the ``member`` submapper as ``path_prefix``, |
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101 ``actions`` and keyword arguments respectively. |
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102 |
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103 Example:: |
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104 |
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105 >>> from routes.util import url_for |
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106 >>> map = Mapper(controller_scan=None) |
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107 >>> c = map.collection('entries', 'entry') |
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108 >>> c.member.link('ping', method='POST') |
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109 >>> url_for('entries') == '/entries' |
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110 True |
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111 >>> url_for('edit_entry', id=1) == '/entries/1/edit' |
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112 True |
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113 >>> url_for('ping_entry', id=1) == '/entries/1/ping' |
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114 True |
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115 |
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116 """ |
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117 if controller is None: |
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118 controller = resource_name or collection_name |
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119 |
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120 if path_prefix is None: |
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121 if collection_name is None: |
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122 path_prefix_str = '' |
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123 else: |
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124 path_prefix_str = '/{collection_name}' |
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125 else: |
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126 if collection_name is None: |
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127 path_prefix_str = "{pre}" |
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128 else: |
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129 path_prefix_str = "{pre}/{collection_name}" |
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130 |
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131 # generate what will be the path prefix for the collection |
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132 path_prefix = path_prefix_str.format(pre=path_prefix, |
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133 collection_name=collection_name) |
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134 |
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135 collection = SubMapper(self, collection_name=collection_name, |
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136 resource_name=resource_name, |
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137 path_prefix=path_prefix, controller=controller, |
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138 actions=collection_actions, **kwargs) |
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139 |
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140 collection.member = SubMapper(collection, path_prefix=member_prefix, |
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141 actions=member_actions, |
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142 **(member_options or {})) |
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143 |
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144 return collection |
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145 |
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146 |
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147 class SubMapper(SubMapperParent): |
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148 """Partial mapper for use with_options""" |
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149 def __init__(self, obj, resource_name=None, collection_name=None, |
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150 actions=None, formatted=None, **kwargs): |
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151 self.kwargs = kwargs |
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152 self.obj = obj |
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153 self.collection_name = collection_name |
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154 self.member = None |
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155 self.resource_name = resource_name \ |
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156 or getattr(obj, 'resource_name', None) \ |
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157 or kwargs.get('controller', None) \ |
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158 or getattr(obj, 'controller', None) |
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159 if formatted is not None: |
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160 self.formatted = formatted |
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161 else: |
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162 self.formatted = getattr(obj, 'formatted', None) |
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163 if self.formatted is None: |
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164 self.formatted = True |
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165 self.add_actions(actions or [], **kwargs) |
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166 |
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167 def connect(self, routename, path=None, **kwargs): |
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168 newkargs = {} |
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169 _routename = routename |
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170 _path = path |
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171 for key, value in six.iteritems(self.kwargs): |
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172 if key == 'path_prefix': |
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173 if path is not None: |
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174 # if there's a name_prefix, add it to the route name |
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175 # and if there's a path_prefix |
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176 _path = ''.join((self.kwargs[key], path)) |
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177 else: |
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178 _path = ''.join((self.kwargs[key], routename)) |
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179 elif key == 'name_prefix': |
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180 if path is not None: |
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181 # if there's a name_prefix, add it to the route name |
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182 # and if there's a path_prefix |
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183 _routename = ''.join((self.kwargs[key], routename)) |
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184 else: |
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185 _routename = None |
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186 elif key in kwargs: |
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187 if isinstance(value, dict): |
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188 newkargs[key] = dict(value, **kwargs[key]) # merge dicts |
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189 else: |
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190 # Originally used this form: |
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191 # newkargs[key] = value + kwargs[key] |
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192 # New version avoids the inheritance concatenation issue |
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193 # with submappers. Only prefixes concatenate, everything |
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194 # else overrides in submappers. |
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195 newkargs[key] = kwargs[key] |
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196 else: |
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197 newkargs[key] = self.kwargs[key] |
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198 for key in kwargs: |
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199 if key not in self.kwargs: |
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200 newkargs[key] = kwargs[key] |
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201 |
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202 newargs = (_routename, _path) |
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203 return self.obj.connect(*newargs, **newkargs) |
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204 |
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205 def link(self, rel=None, name=None, action=None, method='GET', |
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206 formatted=None, **kwargs): |
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207 """Generates a named route for a subresource. |
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208 |
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209 Example:: |
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210 |
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211 >>> from routes.util import url_for |
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212 >>> map = Mapper(controller_scan=None) |
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213 >>> c = map.collection('entries', 'entry') |
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214 >>> c.link('recent', name='recent_entries') |
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215 >>> c.member.link('ping', method='POST', formatted=True) |
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216 >>> url_for('entries') == '/entries' |
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217 True |
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218 >>> url_for('recent_entries') == '/entries/recent' |
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219 True |
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220 >>> url_for('ping_entry', id=1) == '/entries/1/ping' |
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221 True |
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222 >>> url_for('ping_entry', id=1, format='xml') == '/entries/1/ping.xml' |
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223 True |
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224 |
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225 """ |
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226 if formatted or (formatted is None and self.formatted): |
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227 suffix = '{.format}' |
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228 else: |
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229 suffix = '' |
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230 |
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231 return self.connect(name or (rel + '_' + self.resource_name), |
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232 '/' + (rel or name) + suffix, |
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233 action=action or rel or name, |
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234 **_kwargs_with_conditions(kwargs, method)) |
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235 |
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236 def new(self, **kwargs): |
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237 """Generates the "new" link for a collection submapper.""" |
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238 return self.link(rel='new', **kwargs) |
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239 |
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240 def edit(self, **kwargs): |
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241 """Generates the "edit" link for a collection member submapper.""" |
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242 return self.link(rel='edit', **kwargs) |
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243 |
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244 def action(self, name=None, action=None, method='GET', formatted=None, |
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245 **kwargs): |
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246 """Generates a named route at the base path of a submapper. |
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247 |
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248 Example:: |
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249 |
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250 >>> from routes import url_for |
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251 >>> map = Mapper(controller_scan=None) |
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252 >>> c = map.submapper(path_prefix='/entries', controller='entry') |
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253 >>> c.action(action='index', name='entries', formatted=True) |
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254 >>> c.action(action='create', method='POST') |
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255 >>> url_for(controller='entry', action='index', method='GET') == '/entries' |
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256 True |
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257 >>> url_for(controller='entry', action='index', method='GET', format='xml') == '/entries.xml' |
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258 True |
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259 >>> url_for(controller='entry', action='create', method='POST') == '/entries' |
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260 True |
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261 |
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262 """ |
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263 if formatted or (formatted is None and self.formatted): |
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264 suffix = '{.format}' |
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265 else: |
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266 suffix = '' |
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267 return self.connect(name or (action + '_' + self.resource_name), |
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268 suffix, |
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269 action=action or name, |
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270 **_kwargs_with_conditions(kwargs, method)) |
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271 |
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272 def index(self, name=None, **kwargs): |
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273 """Generates the "index" action for a collection submapper.""" |
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274 return self.action(name=name or self.collection_name, |
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275 action='index', method='GET', **kwargs) |
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276 |
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277 def show(self, name=None, **kwargs): |
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278 """Generates the "show" action for a collection member submapper.""" |
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279 return self.action(name=name or self.resource_name, |
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280 action='show', method='GET', **kwargs) |
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281 |
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282 def create(self, **kwargs): |
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283 """Generates the "create" action for a collection submapper.""" |
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284 return self.action(action='create', method='POST', **kwargs) |
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285 |
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286 def update(self, **kwargs): |
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287 """Generates the "update" action for a collection member submapper.""" |
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288 return self.action(action='update', method='PUT', **kwargs) |
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289 |
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290 def delete(self, **kwargs): |
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291 """Generates the "delete" action for a collection member submapper.""" |
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292 return self.action(action='delete', method='DELETE', **kwargs) |
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293 |
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294 def add_actions(self, actions, **kwargs): |
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295 [getattr(self, action)(**kwargs) for action in actions] |
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296 |
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297 # Provided for those who prefer using the 'with' syntax in Python 2.5+ |
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298 def __enter__(self): |
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299 return self |
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300 |
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301 def __exit__(self, type, value, tb): |
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302 pass |
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303 |
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304 |
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305 # Create kwargs with a 'conditions' member generated for the given method |
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306 def _kwargs_with_conditions(kwargs, method): |
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307 if method and 'conditions' not in kwargs: |
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308 newkwargs = kwargs.copy() |
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309 newkwargs['conditions'] = {'method': method} |
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310 return newkwargs |
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311 else: |
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312 return kwargs |
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313 |
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314 |
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315 class Mapper(SubMapperParent): |
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316 """Mapper handles URL generation and URL recognition in a web |
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317 application. |
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318 |
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319 Mapper is built handling dictionary's. It is assumed that the web |
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320 application will handle the dictionary returned by URL recognition |
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321 to dispatch appropriately. |
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322 |
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323 URL generation is done by passing keyword parameters into the |
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324 generate function, a URL is then returned. |
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325 |
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326 """ |
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327 def __init__(self, controller_scan=controller_scan, directory=None, |
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328 always_scan=False, register=True, explicit=True): |
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329 """Create a new Mapper instance |
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330 |
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331 All keyword arguments are optional. |
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332 |
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333 ``controller_scan`` |
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334 Function reference that will be used to return a list of |
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335 valid controllers used during URL matching. If |
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336 ``directory`` keyword arg is present, it will be passed |
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337 into the function during its call. This option defaults to |
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338 a function that will scan a directory for controllers. |
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339 |
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340 Alternatively, a list of controllers or None can be passed |
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341 in which are assumed to be the definitive list of |
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342 controller names valid when matching 'controller'. |
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343 |
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344 ``directory`` |
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345 Passed into controller_scan for the directory to scan. It |
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346 should be an absolute path if using the default |
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347 ``controller_scan`` function. |
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348 |
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349 ``always_scan`` |
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350 Whether or not the ``controller_scan`` function should be |
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351 run during every URL match. This is typically a good idea |
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352 during development so the server won't need to be restarted |
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353 anytime a controller is added. |
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354 |
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355 ``register`` |
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356 Boolean used to determine if the Mapper should use |
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357 ``request_config`` to register itself as the mapper. Since |
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358 it's done on a thread-local basis, this is typically best |
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359 used during testing though it won't hurt in other cases. |
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360 |
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361 ``explicit`` |
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362 Boolean used to determine if routes should be connected |
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363 with implicit defaults of:: |
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364 |
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365 {'controller':'content','action':'index','id':None} |
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366 |
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367 When set to True, these defaults will not be added to route |
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368 connections and ``url_for`` will not use Route memory. |
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369 |
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370 Additional attributes that may be set after mapper |
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371 initialization (ie, map.ATTRIBUTE = 'something'): |
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372 |
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373 ``encoding`` |
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374 Used to indicate alternative encoding/decoding systems to |
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375 use with both incoming URL's, and during Route generation |
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376 when passed a Unicode string. Defaults to 'utf-8'. |
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377 |
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378 ``decode_errors`` |
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379 How to handle errors in the encoding, generally ignoring |
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380 any chars that don't convert should be sufficient. Defaults |
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381 to 'ignore'. |
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382 |
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383 ``minimization`` |
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384 Boolean used to indicate whether or not Routes should |
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385 minimize URL's and the generated URL's, or require every |
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386 part where it appears in the path. Defaults to False. |
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387 |
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388 ``hardcode_names`` |
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389 Whether or not Named Routes result in the default options |
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390 for the route being used *or* if they actually force url |
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391 generation to use the route. Defaults to False. |
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392 |
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393 """ |
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394 self.matchlist = [] |
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395 self.maxkeys = {} |
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396 self.minkeys = {} |
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397 self.urlcache = LRUCache(1600) |
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398 self._created_regs = False |
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399 self._created_gens = False |
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400 self._master_regexp = None |
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401 self.prefix = None |
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402 self.req_data = threading.local() |
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403 self.directory = directory |
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404 self.always_scan = always_scan |
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405 self.controller_scan = controller_scan |
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406 self._regprefix = None |
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407 self._routenames = {} |
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408 self.debug = False |
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409 self.append_slash = False |
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410 self.sub_domains = False |
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411 self.sub_domains_ignore = [] |
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412 self.domain_match = r'[^\.\/]+?\.[^\.\/]+' |
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413 self.explicit = explicit |
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414 self.encoding = 'utf-8' |
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415 self.decode_errors = 'ignore' |
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416 self.hardcode_names = True |
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417 self.minimization = False |
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418 self.create_regs_lock = threading.Lock() |
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419 if register: |
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420 config = request_config() |
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421 config.mapper = self |
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422 |
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423 def __str__(self): |
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424 """Generates a tabular string representation.""" |
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425 def format_methods(r): |
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426 if r.conditions: |
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427 method = r.conditions.get('method', '') |
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428 return type(method) is str and method or ', '.join(method) |
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429 else: |
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430 return '' |
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431 |
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432 table = [('Route name', 'Methods', 'Path', 'Controller', 'action')] + \ |
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433 [(r.name or '', format_methods(r), r.routepath or '', |
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434 r.defaults.get('controller', ''), r.defaults.get('action', '')) |
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435 for r in self.matchlist] |
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436 |
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437 widths = [max(len(row[col]) for row in table) |
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438 for col in range(len(table[0]))] |
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439 |
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440 return '\n'.join( |
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441 ' '.join(row[col].ljust(widths[col]) |
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442 for col in range(len(widths))) |
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443 for row in table) |
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444 |
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445 def _envget(self): |
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446 try: |
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447 return self.req_data.environ |
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448 except AttributeError: |
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449 return None |
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450 |
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451 def _envset(self, env): |
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452 self.req_data.environ = env |
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453 |
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454 def _envdel(self): |
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455 del self.req_data.environ |
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456 environ = property(_envget, _envset, _envdel) |
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457 |
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458 def extend(self, routes, path_prefix=''): |
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459 """Extends the mapper routes with a list of Route objects |
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460 |
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461 If a path_prefix is provided, all the routes will have their |
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462 path prepended with the path_prefix. |
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463 |
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464 Example:: |
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465 |
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466 >>> map = Mapper(controller_scan=None) |
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467 >>> map.connect('home', '/', controller='home', action='splash') |
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468 >>> map.matchlist[0].name == 'home' |
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469 True |
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470 >>> routes = [Route('index', '/index.htm', controller='home', |
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471 ... action='index')] |
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472 >>> map.extend(routes) |
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473 >>> len(map.matchlist) == 2 |
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474 True |
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475 >>> map.extend(routes, path_prefix='/subapp') |
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476 >>> len(map.matchlist) == 3 |
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477 True |
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478 >>> map.matchlist[2].routepath == '/subapp/index.htm' |
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479 True |
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480 |
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481 .. note:: |
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482 |
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483 This function does not merely extend the mapper with the |
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484 given list of routes, it actually creates new routes with |
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485 identical calling arguments. |
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486 |
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487 """ |
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488 for route in routes: |
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489 if path_prefix and route.minimization: |
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490 routepath = '/'.join([path_prefix, route.routepath]) |
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491 elif path_prefix: |
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492 routepath = path_prefix + route.routepath |
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493 else: |
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494 routepath = route.routepath |
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495 self.connect(route.name, |
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496 routepath, |
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497 conditions=route.conditions, |
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498 **route._kargs |
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499 ) |
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500 |
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501 def make_route(self, *args, **kargs): |
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502 """Make a new Route object |
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503 |
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504 A subclass can override this method to use a custom Route class. |
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505 """ |
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506 return Route(*args, **kargs) |
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507 |
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508 def connect(self, *args, **kargs): |
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509 """Create and connect a new Route to the Mapper. |
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510 |
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511 Usage: |
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512 |
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513 .. code-block:: python |
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514 |
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515 m = Mapper() |
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516 m.connect(':controller/:action/:id') |
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517 m.connect('date/:year/:month/:day', controller="blog", |
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518 action="view") |
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519 m.connect('archives/:page', controller="blog", action="by_page", |
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520 requirements = { 'page':'\\d{1,2}' }) |
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521 m.connect('category_list', 'archives/category/:section', |
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522 controller='blog', action='category', |
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523 section='home', type='list') |
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524 m.connect('home', '', controller='blog', action='view', |
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525 section='home') |
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526 |
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527 """ |
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528 routename = None |
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529 if len(args) > 1: |
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530 routename = args[0] |
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531 else: |
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532 args = (None,) + args |
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533 if '_explicit' not in kargs: |
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534 kargs['_explicit'] = self.explicit |
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535 if '_minimize' not in kargs: |
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536 kargs['_minimize'] = self.minimization |
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537 route = self.make_route(*args, **kargs) |
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538 |
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539 # Apply encoding and errors if its not the defaults and the route |
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540 # didn't have one passed in. |
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541 if (self.encoding != 'utf-8' or self.decode_errors != 'ignore') and \ |
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542 '_encoding' not in kargs: |
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543 route.encoding = self.encoding |
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544 route.decode_errors = self.decode_errors |
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545 |
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546 if not route.static: |
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547 self.matchlist.append(route) |
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548 |
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549 if routename: |
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550 self._routenames[routename] = route |
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551 route.name = routename |
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552 if route.static: |
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553 return |
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554 exists = False |
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555 for key in self.maxkeys: |
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556 if key == route.maxkeys: |
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557 self.maxkeys[key].append(route) |
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558 exists = True |
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559 break |
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560 if not exists: |
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561 self.maxkeys[route.maxkeys] = [route] |
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562 self._created_gens = False |
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563 |
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564 def _create_gens(self): |
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565 """Create the generation hashes for route lookups""" |
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566 # Use keys temporailly to assemble the list to avoid excessive |
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567 # list iteration testing with "in" |
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568 controllerlist = {} |
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569 actionlist = {} |
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570 |
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571 # Assemble all the hardcoded/defaulted actions/controllers used |
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572 for route in self.matchlist: |
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573 if route.static: |
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574 continue |
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575 if 'controller' in route.defaults: |
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576 controllerlist[route.defaults['controller']] = True |
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577 if 'action' in route.defaults: |
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578 actionlist[route.defaults['action']] = True |
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579 |
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580 # Setup the lists of all controllers/actions we'll add each route |
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581 # to. We include the '*' in the case that a generate contains a |
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582 # controller/action that has no hardcodes |
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583 controllerlist = list(controllerlist.keys()) + ['*'] |
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584 actionlist = list(actionlist.keys()) + ['*'] |
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585 |
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586 # Go through our list again, assemble the controllers/actions we'll |
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587 # add each route to. If its hardcoded, we only add it to that dict key. |
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588 # Otherwise we add it to every hardcode since it can be changed. |
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589 gendict = {} # Our generated two-deep hash |
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590 for route in self.matchlist: |
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591 if route.static: |
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592 continue |
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593 clist = controllerlist |
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594 alist = actionlist |
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595 if 'controller' in route.hardcoded: |
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596 clist = [route.defaults['controller']] |
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597 if 'action' in route.hardcoded: |
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598 alist = [six.text_type(route.defaults['action'])] |
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599 for controller in clist: |
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600 for action in alist: |
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601 actiondict = gendict.setdefault(controller, {}) |
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602 actiondict.setdefault(action, ([], {}))[0].append(route) |
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603 self._gendict = gendict |
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604 self._created_gens = True |
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605 |
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606 def create_regs(self, *args, **kwargs): |
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607 """Atomically creates regular expressions for all connected |
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608 routes |
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609 """ |
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610 self.create_regs_lock.acquire() |
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611 try: |
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612 self._create_regs(*args, **kwargs) |
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613 finally: |
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614 self.create_regs_lock.release() |
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615 |
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616 def _create_regs(self, clist=None): |
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617 """Creates regular expressions for all connected routes""" |
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618 if clist is None: |
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619 if self.directory: |
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620 clist = self.controller_scan(self.directory) |
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621 elif callable(self.controller_scan): |
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622 clist = self.controller_scan() |
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623 elif not self.controller_scan: |
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624 clist = [] |
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625 else: |
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626 clist = self.controller_scan |
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627 |
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628 for key, val in six.iteritems(self.maxkeys): |
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629 for route in val: |
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630 route.makeregexp(clist) |
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631 |
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632 regexps = [] |
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633 prefix2routes = collections.defaultdict(list) |
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634 for route in self.matchlist: |
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635 if not route.static: |
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636 regexps.append(route.makeregexp(clist, include_names=False)) |
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637 # Group the routes by static prefix |
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638 prefix = ''.join(it.takewhile(lambda p: isinstance(p, str), |
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639 route.routelist)) |
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640 if route.minimization and not prefix.startswith('/'): |
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641 prefix = '/' + prefix |
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642 prefix2routes[prefix.rstrip("/")].append(route) |
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643 self._prefix2routes = prefix2routes |
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644 # Keep track of all possible prefix lengths in decreasing order |
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645 self._prefix_lens = sorted(set(len(p) for p in prefix2routes), |
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646 reverse=True) |
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647 |
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648 # Create our regexp to strip the prefix |
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649 if self.prefix: |
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650 self._regprefix = re.compile(self.prefix + '(.*)') |
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651 |
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652 # Save the master regexp |
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653 regexp = '|'.join(['(?:%s)' % x for x in regexps]) |
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654 self._master_reg = regexp |
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655 try: |
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656 self._master_regexp = re.compile(regexp) |
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657 except OverflowError: |
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658 self._master_regexp = None |
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659 self._created_regs = True |
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660 |
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661 def _match(self, url, environ): |
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662 """Internal Route matcher |
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663 |
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664 Matches a URL against a route, and returns a tuple of the match |
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665 dict and the route object if a match is successfull, otherwise |
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666 it returns empty. |
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667 |
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668 For internal use only. |
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669 |
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670 """ |
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671 if not self._created_regs and self.controller_scan: |
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672 self.create_regs() |
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673 elif not self._created_regs: |
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674 raise RoutesException("You must generate the regular expressions" |
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675 " before matching.") |
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676 |
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677 if self.always_scan: |
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678 self.create_regs() |
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679 |
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680 matchlog = [] |
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681 if self.prefix: |
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682 if re.match(self._regprefix, url): |
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683 url = re.sub(self._regprefix, r'\1', url) |
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684 if not url: |
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685 url = '/' |
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686 else: |
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687 return (None, None, matchlog) |
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688 |
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689 environ = environ or self.environ |
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690 sub_domains = self.sub_domains |
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691 sub_domains_ignore = self.sub_domains_ignore |
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692 domain_match = self.domain_match |
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693 debug = self.debug |
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694 |
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695 if self._master_regexp is not None: |
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696 # Check to see if its a valid url against the main regexp |
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697 # Done for faster invalid URL elimination |
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698 valid_url = re.match(self._master_regexp, url) |
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699 else: |
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700 # Regex is None due to OverflowError caused by too many routes. |
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701 # This will allow larger projects to work but might increase time |
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702 # spent invalidating URLs in the loop below. |
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703 valid_url = True |
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704 if not valid_url: |
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705 return (None, None, matchlog) |
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706 |
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707 matchlist = it.chain.from_iterable(self._prefix2routes.get(url[:prefix_len], ()) |
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708 for prefix_len in self._prefix_lens) |
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709 for route in matchlist: |
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710 if route.static: |
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711 if debug: |
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712 matchlog.append(dict(route=route, static=True)) |
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713 continue |
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714 match = route.match(url, environ, sub_domains, sub_domains_ignore, |
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715 domain_match) |
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716 if debug: |
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717 matchlog.append(dict(route=route, regexp=bool(match))) |
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718 if isinstance(match, dict) or match: |
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719 return (match, route, matchlog) |
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720 return (None, None, matchlog) |
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721 |
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722 def match(self, url=None, environ=None): |
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723 """Match a URL against against one of the routes contained. |
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724 |
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725 Will return None if no valid match is found. |
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726 |
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727 .. code-block:: python |
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728 |
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729 resultdict = m.match('/joe/sixpack') |
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730 |
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731 """ |
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732 if url is None and not environ: |
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733 raise RoutesException('URL or environ must be provided') |
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734 |
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735 if url is None: |
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736 url = environ['PATH_INFO'] |
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737 |
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738 result = self._match(url, environ) |
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739 if self.debug: |
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740 return result[0], result[1], result[2] |
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741 if isinstance(result[0], dict) or result[0]: |
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742 return result[0] |
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743 return None |
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744 |
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745 def routematch(self, url=None, environ=None): |
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746 """Match a URL against against one of the routes contained. |
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747 |
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748 Will return None if no valid match is found, otherwise a |
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749 result dict and a route object is returned. |
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750 |
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751 .. code-block:: python |
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752 |
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753 resultdict, route_obj = m.match('/joe/sixpack') |
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754 |
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755 """ |
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756 if url is None and not environ: |
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757 raise RoutesException('URL or environ must be provided') |
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758 |
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|
759 if url is None: |
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760 url = environ['PATH_INFO'] |
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761 result = self._match(url, environ) |
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762 if self.debug: |
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763 return result[0], result[1], result[2] |
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764 if isinstance(result[0], dict) or result[0]: |
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765 return result[0], result[1] |
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766 return None |
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767 |
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768 def generate(self, *args, **kargs): |
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769 """Generate a route from a set of keywords |
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770 |
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771 Returns the url text, or None if no URL could be generated. |
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772 |
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773 .. code-block:: python |
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774 |
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|
775 m.generate(controller='content',action='view',id=10) |
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776 |
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777 """ |
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778 # Generate ourself if we haven't already |
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779 if not self._created_gens: |
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780 self._create_gens() |
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781 |
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782 if self.append_slash: |
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783 kargs['_append_slash'] = True |
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784 |
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785 if not self.explicit: |
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786 if 'controller' not in kargs: |
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787 kargs['controller'] = 'content' |
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788 if 'action' not in kargs: |
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789 kargs['action'] = 'index' |
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790 |
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791 environ = kargs.pop('_environ', self.environ) or {} |
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792 if 'SCRIPT_NAME' in environ: |
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793 script_name = environ['SCRIPT_NAME'] |
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|
794 elif self.environ and 'SCRIPT_NAME' in self.environ: |
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shellac
parents:
diff
changeset
|
795 script_name = self.environ['SCRIPT_NAME'] |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
796 else: |
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shellac
parents:
diff
changeset
|
797 script_name = "" |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
798 controller = kargs.get('controller', None) |
4f3585e2f14b
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shellac
parents:
diff
changeset
|
799 action = kargs.get('action', None) |
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shellac
parents:
diff
changeset
|
800 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
801 # If the URL didn't depend on the SCRIPT_NAME, we'll cache it |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
802 # keyed by just by kargs; otherwise we need to cache it with |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
803 # both SCRIPT_NAME and kargs: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
804 cache_key = six.text_type(args).encode('utf8') + \ |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
805 six.text_type(kargs).encode('utf8') |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
806 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
807 if self.urlcache is not None: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
808 if six.PY3: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
809 cache_key_script_name = b':'.join((script_name.encode('utf-8'), |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
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changeset
|
810 cache_key)) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
811 else: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
812 cache_key_script_name = '%s:%s' % (script_name, cache_key) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
813 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
814 # Check the url cache to see if it exists, use it if it does |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
815 val = self.urlcache.get(cache_key_script_name, self) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
816 if val != self: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
817 return val |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
818 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
819 controller = as_unicode(controller, self.encoding) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
820 action = as_unicode(action, self.encoding) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
821 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
822 actionlist = self._gendict.get(controller) or self._gendict.get('*', {}) |
4f3585e2f14b
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shellac
parents:
diff
changeset
|
823 if not actionlist and not args: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
824 return None |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
825 (keylist, sortcache) = actionlist.get(action) or \ |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
826 actionlist.get('*', (None, {})) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
827 if not keylist and not args: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
828 return None |
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shellac
parents:
diff
changeset
|
829 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
830 keys = frozenset(kargs.keys()) |
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shellac
parents:
diff
changeset
|
831 cacheset = False |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
832 cachekey = six.text_type(keys) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
833 cachelist = sortcache.get(cachekey) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
834 if args: |
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shellac
parents:
diff
changeset
|
835 keylist = args |
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shellac
parents:
diff
changeset
|
836 elif cachelist: |
4f3585e2f14b
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shellac
parents:
diff
changeset
|
837 keylist = cachelist |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
838 else: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
839 cacheset = True |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
840 newlist = [] |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
841 for route in keylist: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
842 if len(route.minkeys - route.dotkeys - keys) == 0: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
843 newlist.append(route) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
844 keylist = newlist |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
845 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
846 class KeySorter: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
847 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
848 def __init__(self, obj, *args): |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
849 self.obj = obj |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
850 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
851 def __lt__(self, other): |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
852 return self._keysort(self.obj, other.obj) < 0 |
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shellac
parents:
diff
changeset
|
853 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
854 def _keysort(self, a, b): |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
855 """Sorts two sets of sets, to order them ideally for |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
856 matching.""" |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
857 a = a.maxkeys |
4f3585e2f14b
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shellac
parents:
diff
changeset
|
858 b = b.maxkeys |
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shellac
parents:
diff
changeset
|
859 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
860 lendiffa = len(keys ^ a) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
861 lendiffb = len(keys ^ b) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
862 # If they both match, don't switch them |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
863 if lendiffa == 0 and lendiffb == 0: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
864 return 0 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
865 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
866 # First, if a matches exactly, use it |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
867 if lendiffa == 0: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
868 return -1 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
869 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
870 # Or b matches exactly, use it |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
871 if lendiffb == 0: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
872 return 1 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
873 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
874 # Neither matches exactly, return the one with the most in |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
875 # common |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
876 if self._compare(lendiffa, lendiffb) != 0: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
877 return self._compare(lendiffa, lendiffb) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
878 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
879 # Neither matches exactly, but if they both have just as |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
880 # much in common |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
881 if len(keys & b) == len(keys & a): |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
882 # Then we return the shortest of the two |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
883 return self._compare(len(a), len(b)) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
884 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
885 # Otherwise, we return the one that has the most in common |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
886 else: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
887 return self._compare(len(keys & b), len(keys & a)) |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
888 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
889 def _compare(self, obj1, obj2): |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
890 if obj1 < obj2: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
891 return -1 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
892 elif obj1 < obj2: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
893 return 1 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
894 else: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
895 return 0 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
896 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
897 keylist.sort(key=KeySorter) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
898 if cacheset: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
899 sortcache[cachekey] = keylist |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
900 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
901 # Iterate through the keylist of sorted routes (or a single route if |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
902 # it was passed in explicitly for hardcoded named routes) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
903 for route in keylist: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
904 fail = False |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
905 for key in route.hardcoded: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
906 kval = kargs.get(key) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
907 if not kval: |
4f3585e2f14b
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908 continue |
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909 kval = as_unicode(kval, self.encoding) |
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910 if kval != route.defaults[key] and \ |
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911 not callable(route.defaults[key]): |
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912 fail = True |
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913 break |
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914 if fail: |
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915 continue |
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916 path = route.generate(**kargs) |
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917 if path: |
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918 if self.prefix: |
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919 path = self.prefix + path |
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920 external_static = route.static and route.external |
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921 if not route.absolute and not external_static: |
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922 path = script_name + path |
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923 key = cache_key_script_name |
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924 else: |
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925 key = cache_key |
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926 if self.urlcache is not None: |
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927 self.urlcache.put(key, str(path)) |
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928 return str(path) |
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929 else: |
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930 continue |
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931 return None |
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932 |
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933 def resource(self, member_name, collection_name, **kwargs): |
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934 """Generate routes for a controller resource |
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935 |
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936 The member_name name should be the appropriate singular version |
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937 of the resource given your locale and used with members of the |
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938 collection. The collection_name name will be used to refer to |
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939 the resource collection methods and should be a plural version |
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940 of the member_name argument. By default, the member_name name |
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941 will also be assumed to map to a controller you create. |
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942 |
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943 The concept of a web resource maps somewhat directly to 'CRUD' |
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944 operations. The overlying things to keep in mind is that |
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945 mapping a resource is about handling creating, viewing, and |
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946 editing that resource. |
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947 |
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948 All keyword arguments are optional. |
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949 |
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950 ``controller`` |
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951 If specified in the keyword args, the controller will be |
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952 the actual controller used, but the rest of the naming |
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953 conventions used for the route names and URL paths are |
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954 unchanged. |
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955 |
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956 ``collection`` |
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957 Additional action mappings used to manipulate/view the |
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958 entire set of resources provided by the controller. |
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959 |
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960 Example:: |
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961 |
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962 map.resource('message', 'messages', collection={'rss':'GET'}) |
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963 # GET /message/rss (maps to the rss action) |
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964 # also adds named route "rss_message" |
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965 |
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966 ``member`` |
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967 Additional action mappings used to access an individual |
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968 'member' of this controllers resources. |
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969 |
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970 Example:: |
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971 |
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972 map.resource('message', 'messages', member={'mark':'POST'}) |
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973 # POST /message/1/mark (maps to the mark action) |
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974 # also adds named route "mark_message" |
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975 |
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976 ``new`` |
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977 Action mappings that involve dealing with a new member in |
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978 the controller resources. |
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979 |
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980 Example:: |
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981 |
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982 map.resource('message', 'messages', new={'preview':'POST'}) |
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983 # POST /message/new/preview (maps to the preview action) |
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984 # also adds a url named "preview_new_message" |
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985 |
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986 ``path_prefix`` |
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987 Prepends the URL path for the Route with the path_prefix |
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988 given. This is most useful for cases where you want to mix |
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989 resources or relations between resources. |
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990 |
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991 ``name_prefix`` |
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992 Perpends the route names that are generated with the |
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993 name_prefix given. Combined with the path_prefix option, |
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994 it's easy to generate route names and paths that represent |
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995 resources that are in relations. |
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996 |
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997 Example:: |
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998 |
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999 map.resource('message', 'messages', controller='categories', |
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1000 path_prefix='/category/:category_id', |
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1001 name_prefix="category_") |
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1002 # GET /category/7/message/1 |
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1003 # has named route "category_message" |
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1004 |
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1005 ``requirements`` |
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1006 |
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1007 A dictionary that restricts the matching of a |
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1008 variable. Can be used when matching variables with path_prefix. |
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1009 |
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1010 Example:: |
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1011 |
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1012 map.resource('message', 'messages', |
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1013 path_prefix='{project_id}/', |
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1014 requirements={"project_id": R"\\d+"}) |
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1015 # POST /01234/message |
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1016 # success, project_id is set to "01234" |
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1017 # POST /foo/message |
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1018 # 404 not found, won't be matched by this route |
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1019 |
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1020 |
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1021 ``parent_resource`` |
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1022 A ``dict`` containing information about the parent |
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1023 resource, for creating a nested resource. It should contain |
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1024 the ``member_name`` and ``collection_name`` of the parent |
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1025 resource. This ``dict`` will |
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1026 be available via the associated ``Route`` object which can |
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1027 be accessed during a request via |
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1028 ``request.environ['routes.route']`` |
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1029 |
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1030 If ``parent_resource`` is supplied and ``path_prefix`` |
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1031 isn't, ``path_prefix`` will be generated from |
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1032 ``parent_resource`` as |
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1033 "<parent collection name>/:<parent member name>_id". |
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1034 |
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1035 If ``parent_resource`` is supplied and ``name_prefix`` |
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1036 isn't, ``name_prefix`` will be generated from |
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1037 ``parent_resource`` as "<parent member name>_". |
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1038 |
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1039 Example:: |
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1040 |
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1041 >>> from routes.util import url_for |
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1042 >>> m = Mapper() |
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1043 >>> m.resource('location', 'locations', |
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1044 ... parent_resource=dict(member_name='region', |
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1045 ... collection_name='regions')) |
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1046 >>> # path_prefix is "regions/:region_id" |
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1047 >>> # name prefix is "region_" |
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1048 >>> url_for('region_locations', region_id=13) |
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1049 '/regions/13/locations' |
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1050 >>> url_for('region_new_location', region_id=13) |
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1051 '/regions/13/locations/new' |
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1052 >>> url_for('region_location', region_id=13, id=60) |
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1053 '/regions/13/locations/60' |
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1054 >>> url_for('region_edit_location', region_id=13, id=60) |
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1055 '/regions/13/locations/60/edit' |
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1056 |
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1057 Overriding generated ``path_prefix``:: |
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1058 |
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1059 >>> m = Mapper() |
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1060 >>> m.resource('location', 'locations', |
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1061 ... parent_resource=dict(member_name='region', |
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1062 ... collection_name='regions'), |
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1063 ... path_prefix='areas/:area_id') |
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1064 >>> # name prefix is "region_" |
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1065 >>> url_for('region_locations', area_id=51) |
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1066 '/areas/51/locations' |
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1067 |
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1068 Overriding generated ``name_prefix``:: |
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1069 |
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1070 >>> m = Mapper() |
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1071 >>> m.resource('location', 'locations', |
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1072 ... parent_resource=dict(member_name='region', |
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1073 ... collection_name='regions'), |
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1074 ... name_prefix='') |
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1075 >>> # path_prefix is "regions/:region_id" |
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1076 >>> url_for('locations', region_id=51) |
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1077 '/regions/51/locations' |
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1078 |
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1079 """ |
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1080 collection = kwargs.pop('collection', {}) |
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1081 member = kwargs.pop('member', {}) |
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1082 new = kwargs.pop('new', {}) |
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1083 path_prefix = kwargs.pop('path_prefix', None) |
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1084 name_prefix = kwargs.pop('name_prefix', None) |
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1085 parent_resource = kwargs.pop('parent_resource', None) |
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1086 |
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1087 # Generate ``path_prefix`` if ``path_prefix`` wasn't specified and |
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1088 # ``parent_resource`` was. Likewise for ``name_prefix``. Make sure |
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1089 # that ``path_prefix`` and ``name_prefix`` *always* take precedence if |
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1090 # they are specified--in particular, we need to be careful when they |
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1091 # are explicitly set to "". |
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1092 if parent_resource is not None: |
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1093 if path_prefix is None: |
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1094 path_prefix = '%s/:%s_id' % (parent_resource['collection_name'], |
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1095 parent_resource['member_name']) |
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1096 if name_prefix is None: |
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1097 name_prefix = '%s_' % parent_resource['member_name'] |
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1098 else: |
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1099 if path_prefix is None: |
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1100 path_prefix = '' |
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1101 if name_prefix is None: |
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1102 name_prefix = '' |
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1103 |
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1104 # Ensure the edit and new actions are in and GET |
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1105 member['edit'] = 'GET' |
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1106 new.update({'new': 'GET'}) |
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1107 |
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1108 # Make new dict's based off the old, except the old values become keys, |
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1109 # and the old keys become items in a list as the value |
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1110 def swap(dct, newdct): |
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1111 """Swap the keys and values in the dict, and uppercase the values |
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1112 from the dict during the swap.""" |
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1113 for key, val in six.iteritems(dct): |
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1114 newdct.setdefault(val.upper(), []).append(key) |
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1115 return newdct |
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1116 collection_methods = swap(collection, {}) |
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1117 member_methods = swap(member, {}) |
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1118 new_methods = swap(new, {}) |
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1119 |
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1120 # Insert create, update, and destroy methods |
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1121 collection_methods.setdefault('POST', []).insert(0, 'create') |
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1122 member_methods.setdefault('PUT', []).insert(0, 'update') |
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1123 member_methods.setdefault('DELETE', []).insert(0, 'delete') |
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1124 |
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1125 # If there's a path prefix option, use it with the controller |
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1126 controller = strip_slashes(collection_name) |
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1127 path_prefix = strip_slashes(path_prefix) |
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1128 path_prefix = '/' + path_prefix |
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1129 if path_prefix and path_prefix != '/': |
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1130 path = path_prefix + '/' + controller |
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1131 else: |
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1132 path = '/' + controller |
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1133 collection_path = path |
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1134 new_path = path + "/new" |
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1135 member_path = path + "/:(id)" |
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1136 |
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1137 options = { |
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1138 'controller': kwargs.get('controller', controller), |
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1139 '_member_name': member_name, |
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1140 '_collection_name': collection_name, |
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1141 '_parent_resource': parent_resource, |
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1142 '_filter': kwargs.get('_filter') |
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1143 } |
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1144 if 'requirements' in kwargs: |
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1145 options['requirements'] = kwargs['requirements'] |
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1146 |
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1147 def requirements_for(meth): |
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1148 """Returns a new dict to be used for all route creation as the |
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1149 route options""" |
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1150 opts = options.copy() |
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1151 if method != 'any': |
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1152 opts['conditions'] = {'method': [meth.upper()]} |
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1153 return opts |
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1154 |
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1155 # Add the routes for handling collection methods |
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1156 for method, lst in six.iteritems(collection_methods): |
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1157 primary = (method != 'GET' and lst.pop(0)) or None |
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1158 route_options = requirements_for(method) |
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1159 for action in lst: |
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1160 route_options['action'] = action |
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1161 route_name = "%s%s_%s" % (name_prefix, action, collection_name) |
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1162 self.connect("formatted_" + route_name, "%s/%s.:(format)" % |
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1163 (collection_path, action), **route_options) |
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1164 self.connect(route_name, "%s/%s" % (collection_path, action), |
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1165 **route_options) |
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1166 if primary: |
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1167 route_options['action'] = primary |
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1168 self.connect("%s.:(format)" % collection_path, **route_options) |
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1169 self.connect(collection_path, **route_options) |
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1170 |
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1171 # Specifically add in the built-in 'index' collection method and its |
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1172 # formatted version |
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1173 self.connect("formatted_" + name_prefix + collection_name, |
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1174 collection_path + ".:(format)", action='index', |
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1175 conditions={'method': ['GET']}, **options) |
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1176 self.connect(name_prefix + collection_name, collection_path, |
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1177 action='index', conditions={'method': ['GET']}, **options) |
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1178 |
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1179 # Add the routes that deal with new resource methods |
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1180 for method, lst in six.iteritems(new_methods): |
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1181 route_options = requirements_for(method) |
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1182 for action in lst: |
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1183 name = "new_" + member_name |
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1184 route_options['action'] = action |
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1185 if action == 'new': |
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1186 path = new_path |
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1187 formatted_path = new_path + '.:(format)' |
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1188 else: |
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1189 path = "%s/%s" % (new_path, action) |
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1190 name = action + "_" + name |
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1191 formatted_path = "%s/%s.:(format)" % (new_path, action) |
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1192 self.connect("formatted_" + name_prefix + name, formatted_path, |
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1193 **route_options) |
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1194 self.connect(name_prefix + name, path, **route_options) |
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1195 |
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1196 requirements_regexp = '[^\\/]+(?<!\\\\)' |
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1197 |
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1198 # Add the routes that deal with member methods of a resource |
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1199 for method, lst in six.iteritems(member_methods): |
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1200 route_options = requirements_for(method) |
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1201 route_options['requirements'] = {'id': requirements_regexp} |
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1202 if method not in ['POST', 'GET', 'any']: |
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1203 primary = lst.pop(0) |
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1204 else: |
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1205 primary = None |
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1206 for action in lst: |
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1207 route_options['action'] = action |
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1208 self.connect("formatted_%s%s_%s" % (name_prefix, action, |
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1209 member_name), |
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1210 "%s/%s.:(format)" % (member_path, action), |
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1211 **route_options) |
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1212 self.connect("%s%s_%s" % (name_prefix, action, member_name), |
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1213 "%s/%s" % (member_path, action), **route_options) |
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1214 if primary: |
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1215 route_options['action'] = primary |
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1216 self.connect("%s.:(format)" % member_path, **route_options) |
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1217 self.connect(member_path, **route_options) |
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1218 |
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1219 # Specifically add the member 'show' method |
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1220 route_options = requirements_for('GET') |
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1221 route_options['action'] = 'show' |
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1222 route_options['requirements'] = {'id': requirements_regexp} |
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1223 self.connect("formatted_" + name_prefix + member_name, |
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1224 member_path + ".:(format)", **route_options) |
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1225 self.connect(name_prefix + member_name, member_path, **route_options) |
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1226 |
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1227 def redirect(self, match_path, destination_path, *args, **kwargs): |
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1228 """Add a redirect route to the mapper |
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1229 |
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1230 Redirect routes bypass the wrapped WSGI application and instead |
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1231 result in a redirect being issued by the RoutesMiddleware. As |
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1232 such, this method is only meaningful when using |
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1233 RoutesMiddleware. |
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1234 |
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1235 By default, a 302 Found status code is used, this can be |
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1236 changed by providing a ``_redirect_code`` keyword argument |
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1237 which will then be used instead. Note that the entire status |
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1238 code string needs to be present. |
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1239 |
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1240 When using keyword arguments, all arguments that apply to |
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1241 matching will be used for the match, while generation specific |
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1242 options will be used during generation. Thus all options |
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1243 normally available to connected Routes may be used with |
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1244 redirect routes as well. |
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1245 |
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1246 Example:: |
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1247 |
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1248 map = Mapper() |
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1249 map.redirect('/legacyapp/archives/{url:.*}', '/archives/{url}') |
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1250 map.redirect('/home/index', '/', |
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1251 _redirect_code='301 Moved Permanently') |
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1252 |
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1253 """ |
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1254 both_args = ['_encoding', '_explicit', '_minimize'] |
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1255 gen_args = ['_filter'] |
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1256 |
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1257 status_code = kwargs.pop('_redirect_code', '302 Found') |
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1258 gen_dict, match_dict = {}, {} |
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1259 |
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1260 # Create the dict of args for the generation route |
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1261 for key in both_args + gen_args: |
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1262 if key in kwargs: |
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1263 gen_dict[key] = kwargs[key] |
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1264 gen_dict['_static'] = True |
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1265 |
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1266 # Create the dict of args for the matching route |
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1267 for key in kwargs: |
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1268 if key not in gen_args: |
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1269 match_dict[key] = kwargs[key] |
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1270 |
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1271 self.connect(match_path, **match_dict) |
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1272 match_route = self.matchlist[-1] |
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1273 |
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1274 self.connect('_redirect_%s' % id(match_route), destination_path, |
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1275 **gen_dict) |
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1276 match_route.redirect = True |
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1277 match_route.redirect_status = status_code |