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annotate piecrust/routing.py @ 545:1856e7aa6ce8

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cm: Update changelog.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 31 Jul 2015 23:35:55 -0700
parents bab91fcef741
children daf8df5ade7d
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1 import re
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2 import os.path
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3 import copy
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4 import logging
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5 import urllib.parse
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6 import unidecode
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9 logger = logging.getLogger(__name__)
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12 route_re = re.compile(r'%((?P<qual>path):)?(?P<name>\w+)%')
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13 route_esc_re = re.compile(r'\\%((?P<qual>path)\\:)?(?P<name>\w+)\\%')
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14 template_func_re = re.compile(r'^(?P<name>\w+)\((?P<first_arg>\w+)'
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15 r'(?P<other_args>.*)\)\s*$')
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16 template_func_arg_re = re.compile(r',\s*(?P<arg>\w+)')
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17 ugly_url_cleaner = re.compile(r'\.html$')
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19
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20 def create_route_metadata(page):
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21 route_metadata = copy.deepcopy(page.source_metadata)
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22 route_metadata.update(page.getRouteMetadata())
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23
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24 # TODO: fix this hard-coded shit
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25 for key in ['year', 'month', 'day']:
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26 if key in route_metadata and isinstance(route_metadata[key], str):
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27 route_metadata[key] = int(route_metadata[key])
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29 return route_metadata
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32 class IRouteMetadataProvider(object):
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33 def getRouteMetadata(self):
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34 raise NotImplementedError()
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36
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37 SLUGIFY_ENCODE = 1
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38 SLUGIFY_TRANSLITERATE = 2
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39 SLUGIFY_LOWERCASE = 4
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40 SLUGIFY_DOT_TO_DASH = 8
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43 re_first_dot_to_dash = re.compile(r'^\.+')
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44 re_dot_to_dash = re.compile(r'\.+')
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45
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46
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47 def _parse_slugify_mode(value):
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48 mapping = {
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49 'encode': SLUGIFY_ENCODE,
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50 'transliterate': SLUGIFY_TRANSLITERATE,
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51 'lowercase': SLUGIFY_LOWERCASE,
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52 'dot_to_dash': SLUGIFY_DOT_TO_DASH}
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53 mode = 0
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54 for v in value.split(','):
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55 f = mapping.get(v.strip())
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56 if f is None:
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57 if v == 'iconv':
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58 raise Exception("'iconv' is not supported as a slugify mode "
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59 "in PieCrust2. Use 'transliterate'.")
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60 raise Exception("Unknown slugify flag: %s" % v)
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61 mode |= f
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62 return mode
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64
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65 class Route(object):
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66 """ Information about a route for a PieCrust application.
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67 Each route defines the "shape" of an URL and how it maps to
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68 sources and taxonomies.
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69 """
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70 def __init__(self, app, cfg):
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71 self.app = app
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72
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73 self.source_name = cfg['source']
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74 self.taxonomy_name = cfg.get('taxonomy')
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75 self.taxonomy_term_sep = cfg.get('term_separator', '/')
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76 self.slugify_mode = _parse_slugify_mode(
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77 cfg.get('slugify_mode', 'encode,lowercase'))
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78
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79 self.pretty_urls = app.config.get('site/pretty_urls')
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80 self.trailing_slash = app.config.get('site/trailing_slash')
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81 self.show_debug_info = app.config.get('site/show_debug_info')
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82 self.pagination_suffix_format = app.config.get(
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83 '__cache/pagination_suffix_format')
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84 self.uri_root = app.config.get('site/root')
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85
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86 uri = cfg['url']
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87 self.uri_pattern = uri.lstrip('/')
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88 self.uri_format = route_re.sub(self._uriFormatRepl, self.uri_pattern)
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89
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90 # Get the straight-forward regex for matching this URI pattern.
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91 p = route_esc_re.sub(self._uriPatternRepl,
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92 re.escape(self.uri_pattern)) + '$'
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93 self.uri_re = re.compile(p)
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94
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95 # If the URI pattern has a 'path'-type component, we'll need to match
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96 # the versions for which that component is empty. So for instance if
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97 # we have `/foo/%path:bar%`, we may need to match `/foo` (note the
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98 # lack of a trailing slash). We have to build a special pattern (in
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99 # this case without that trailing slash) to match those situations.
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100 # (maybe there's a better way to do it but I can't think of any
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101 # right now)
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102 uri_pattern_no_path = (
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103 route_re.sub(self._uriNoPathRepl, self.uri_pattern)
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104 .replace('//', '/')
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105 .rstrip('/'))
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106 if uri_pattern_no_path != self.uri_pattern:
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107 p = route_esc_re.sub(self._uriPatternRepl,
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108 re.escape(uri_pattern_no_path)) + '$'
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109 self.uri_re_no_path = re.compile(p)
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110 else:
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111 self.uri_re_no_path = None
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112
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113 self.required_route_metadata = set()
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114 for m in route_re.finditer(self.uri_pattern):
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115 self.required_route_metadata.add(m.group('name'))
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116
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117 self.template_func = None
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118 self.template_func_name = None
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119 self.template_func_args = []
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120 self._createTemplateFunc(cfg.get('func'))
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121
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122 @property
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123 def is_taxonomy_route(self):
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124 return self.taxonomy_name is not None
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125
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diff changeset
126 @property
3
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127 def source(self):
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128 for src in self.app.sources:
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diff changeset
129 if src.name == self.source_name:
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diff changeset
130 return src
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131 raise Exception("Can't find source '%s' for route '%'." % (
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diff changeset
132 self.source_name, self.uri))
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diff changeset
133
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diff changeset
134 @property
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135 def source_realm(self):
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diff changeset
136 return self.source.realm
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diff changeset
137
369
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diff changeset
138 def matchesMetadata(self, route_metadata):
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diff changeset
139 return self.required_route_metadata.issubset(route_metadata.keys())
173
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parents: 154
diff changeset
140
380
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diff changeset
141 def matchUri(self, uri, strict=False):
329
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diff changeset
142 if not uri.startswith(self.uri_root):
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diff changeset
143 raise Exception("The given URI is not absolute: %s" % uri)
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diff changeset
144 uri = uri[len(self.uri_root):]
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diff changeset
145
256
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diff changeset
146 if not self.pretty_urls:
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diff changeset
147 uri = ugly_url_cleaner.sub('', uri)
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diff changeset
148 elif self.trailing_slash:
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diff changeset
149 uri = uri.rstrip('/')
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diff changeset
150
380
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diff changeset
151 route_metadata = None
173
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parents: 154
diff changeset
152 m = self.uri_re.match(uri)
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diff changeset
153 if m:
380
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diff changeset
154 route_metadata = m.groupdict()
173
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parents: 154
diff changeset
155 if self.uri_re_no_path:
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parents: 154
diff changeset
156 m = self.uri_re_no_path.match(uri)
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parents: 154
diff changeset
157 if m:
380
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diff changeset
158 route_metadata = m.groupdict()
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diff changeset
159 if route_metadata is None:
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diff changeset
160 return None
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diff changeset
161
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diff changeset
162 if not strict:
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diff changeset
163 # When matching URIs, if the URI is a match but is missing some
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diff changeset
164 # metadata, fill those up with empty strings. This can happen if,
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diff changeset
165 # say, a route's pattern is `/foo/%slug%`, and we're matching an
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diff changeset
166 # URL like `/foo`.
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diff changeset
167 matched_keys = set(route_metadata.keys())
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diff changeset
168 missing_keys = self.required_route_metadata - matched_keys
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diff changeset
169 for k in missing_keys:
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diff changeset
170 route_metadata[k] = ''
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diff changeset
171
448
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parents: 438
diff changeset
172 # TODO: fix this hard-coded shit
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parents: 438
diff changeset
173 for key in ['year', 'month', 'day']:
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parents: 438
diff changeset
174 if key in route_metadata and isinstance(route_metadata[key], str):
482
cce911be024d serve: Fix a crash when matching taxonomy URLs with incorrect URLs.
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parents: 448
diff changeset
175 try:
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parents: 448
diff changeset
176 route_metadata[key] = int(route_metadata[key])
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parents: 448
diff changeset
177 except ValueError:
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parents: 448
diff changeset
178 pass
448
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diff changeset
179
380
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diff changeset
180 return route_metadata
3
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parents:
diff changeset
181
430
21e26ed867b6 internal: Create full route metadata in one place.
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parents: 396
diff changeset
182 def getUri(self, route_metadata, *, sub_num=1):
369
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diff changeset
183 uri = self.uri_format % route_metadata
256
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diff changeset
184 suffix = None
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diff changeset
185 if sub_num > 1:
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parents: 235
diff changeset
186 # Note that we know the pagination suffix starts with a slash.
262
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parents: 256
diff changeset
187 suffix = self.pagination_suffix_format % {'num': sub_num}
256
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diff changeset
188
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parents: 235
diff changeset
189 if self.pretty_urls:
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diff changeset
190 # Output will be:
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diff changeset
191 # - `subdir/name`
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diff changeset
192 # - `subdir/name/2`
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diff changeset
193 # - `subdir/name.ext`
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diff changeset
194 # - `subdir/name.ext/2`
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parents: 235
diff changeset
195 if suffix:
262
61145dcd56e0 routing: Better generate URLs according to the site configuration.
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parents: 256
diff changeset
196 if uri == '':
61145dcd56e0 routing: Better generate URLs according to the site configuration.
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diff changeset
197 uri = suffix.lstrip('/')
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parents: 256
diff changeset
198 else:
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
199 uri = uri.rstrip('/') + suffix
337
49408002798e internal: Fix stupid routing bug.
Ludovic Chabant <ludovic@chabant.com>
parents: 334
diff changeset
200 if self.trailing_slash and uri != '':
256
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parents: 235
diff changeset
201 uri = uri.rstrip('/') + '/'
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parents: 235
diff changeset
202 else:
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diff changeset
203 # Output will be:
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parents: 235
diff changeset
204 # - `subdir/name.html`
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diff changeset
205 # - `subdir/name/2.html`
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parents: 235
diff changeset
206 # - `subdir/name.ext`
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parents: 235
diff changeset
207 # - `subdir/name/2.ext`
262
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
208 if uri == '':
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
209 if suffix:
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
210 uri = suffix.lstrip('/') + '.html'
256
da5e6e00fb41 bake/serve: Make previewed and baked URLs consistent.
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parents: 235
diff changeset
211 else:
262
61145dcd56e0 routing: Better generate URLs according to the site configuration.
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parents: 256
diff changeset
212 base_uri, ext = os.path.splitext(uri)
61145dcd56e0 routing: Better generate URLs according to the site configuration.
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parents: 256
diff changeset
213 if not ext:
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
214 ext = '.html'
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Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
215 if suffix:
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
216 uri = base_uri + suffix + ext
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
217 else:
61145dcd56e0 routing: Better generate URLs according to the site configuration.
Ludovic Chabant <ludovic@chabant.com>
parents: 256
diff changeset
218 uri = base_uri + ext
256
da5e6e00fb41 bake/serve: Make previewed and baked URLs consistent.
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parents: 235
diff changeset
219
520
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
220 uri = urllib.parse.quote(self.uri_root + uri)
396
dc0988d937b3 serve: Fix bug where `?!debug` doesn't get appending correctly.
Ludovic Chabant <ludovic@chabant.com>
parents: 380
diff changeset
221
dc0988d937b3 serve: Fix bug where `?!debug` doesn't get appending correctly.
Ludovic Chabant <ludovic@chabant.com>
parents: 380
diff changeset
222 if self.show_debug_info:
dc0988d937b3 serve: Fix bug where `?!debug` doesn't get appending correctly.
Ludovic Chabant <ludovic@chabant.com>
parents: 380
diff changeset
223 uri += '?!debug'
dc0988d937b3 serve: Fix bug where `?!debug` doesn't get appending correctly.
Ludovic Chabant <ludovic@chabant.com>
parents: 380
diff changeset
224
235
55087da9a72e bake: Don't include the site root when building output paths.
Ludovic Chabant <ludovic@chabant.com>
parents: 225
diff changeset
225 return uri
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
226
515
16e705c58cae internal: Improve handling of taxonomy term slugification.
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parents: 483
diff changeset
227 def getTaxonomyTerms(self, route_metadata):
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Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
228 if not self.is_taxonomy_route:
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Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
229 raise Exception("This route isn't a taxonomy route.")
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
230
16e705c58cae internal: Improve handling of taxonomy term slugification.
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parents: 483
diff changeset
231 tax = self.app.getTaxonomy(self.taxonomy_name)
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Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
232 all_values = route_metadata.get(tax.term_name)
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Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
233 if all_values is None:
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
234 raise Exception("'%s' values couldn't be found in route metadata" %
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
235 tax.term_name)
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
236
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
237 if self.taxonomy_term_sep in all_values:
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
238 return tuple(all_values.split(self.taxonomy_term_sep))
16e705c58cae internal: Improve handling of taxonomy term slugification.
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parents: 483
diff changeset
239 return all_values
16e705c58cae internal: Improve handling of taxonomy term slugification.
Ludovic Chabant <ludovic@chabant.com>
parents: 483
diff changeset
240
334
b034f6f15e22 bake: Several bug taxonomy-related fixes for incorrect incremental bakes.
Ludovic Chabant <ludovic@chabant.com>
parents: 329
diff changeset
241 def slugifyTaxonomyTerm(self, term):
b034f6f15e22 bake: Several bug taxonomy-related fixes for incorrect incremental bakes.
Ludovic Chabant <ludovic@chabant.com>
parents: 329
diff changeset
242 if isinstance(term, tuple):
520
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
243 return self.taxonomy_term_sep.join(
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
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parents: 515
diff changeset
244 map(self._slugifyOne, term))
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Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
245 return self._slugifyOne(term)
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parents: 515
diff changeset
246
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
247 def _slugifyOne(self, term):
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
248 if self.slugify_mode & SLUGIFY_TRANSLITERATE:
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
249 term = unidecode.unidecode(term)
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parents: 515
diff changeset
250 if self.slugify_mode & SLUGIFY_LOWERCASE:
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
251 term = term.lower()
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Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
252 if self.slugify_mode & SLUGIFY_DOT_TO_DASH:
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
253 term = re_first_dot_to_dash.sub('', term)
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Ludovic Chabant <ludovic@chabant.com>
parents: 515
diff changeset
254 term = re_dot_to_dash.sub('-', term)
334
b034f6f15e22 bake: Several bug taxonomy-related fixes for incorrect incremental bakes.
Ludovic Chabant <ludovic@chabant.com>
parents: 329
diff changeset
255 return term
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256
3
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257 def _uriFormatRepl(self, m):
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258 name = m.group('name')
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259 #TODO: fix this hard-coded shit
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260 if name == 'year':
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261 return '%(year)04d'
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262 if name == 'month':
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263 return '%(month)02d'
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264 if name == 'day':
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265 return '%(day)02d'
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266 return '%(' + name + ')s'
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267
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268 def _uriPatternRepl(self, m):
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269 name = m.group('name')
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270 qualifier = m.group('qual')
334
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271 if qualifier == 'path' or self.taxonomy_name:
173
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272 return r'(?P<%s>[^\?]*)' % name
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273 return r'(?P<%s>[^/\?]+)' % name
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274
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275 def _uriNoPathRepl(self, m):
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276 name = m.group('name')
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277 qualifier = m.group('qual')
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278 if qualifier == 'path':
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279 return ''
3
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280 return r'(?P<%s>[^/\?]+)' % name
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281
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282 def _createTemplateFunc(self, func_def):
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283 if func_def is None:
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284 return
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285
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286 m = template_func_re.match(func_def)
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287 if m is None:
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288 raise Exception("Template function definition for route '%s' "
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289 "has invalid syntax: %s" %
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290 (self.uri_pattern, func_def))
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291
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292 self.template_func_name = m.group('name')
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293 self.template_func_args.append(m.group('first_arg'))
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294 arg_list = m.group('other_args')
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295 if arg_list:
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296 self.template_func_args += template_func_arg_re.findall(arg_list)
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297
334
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298 if self.taxonomy_name:
3
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299 # This will be a taxonomy route function... this means we can
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300 # have a variable number of parameters, but only one parameter
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301 # definition, which is the value.
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302 if len(self.template_func_args) != 1:
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303 raise Exception("Route '%s' is a taxonomy route and must have "
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304 "only one argument, which is the term value." %
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305 self.uri_pattern)
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306
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307 def template_func(*args):
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308 if len(args) == 0:
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309 raise Exception(
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310 "Route function '%s' expected at least one "
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311 "argument." % func_def)
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312
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313 # Term combinations can be passed as an array, or as multiple
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314 # arguments.
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315 values = args
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316 if len(args) == 1 and isinstance(args[0], list):
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317 values = args[0]
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318
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319 # We need to register this use of a taxonomy term.
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320 if len(values) == 1:
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321 registered_values = values[0]
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322 else:
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323 registered_values = tuple(values)
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324 eis = self.app.env.exec_info_stack
338
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325 cpi = eis.current_page_info.render_ctx.current_pass_info
344
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326 if cpi:
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diff changeset
327 cpi.used_taxonomy_terms.add(
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diff changeset
328 (self.source_name, self.taxonomy_name,
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diff changeset
329 registered_values))
3
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330
334
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diff changeset
331 str_values = self.slugifyTaxonomyTerm(registered_values)
3
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332 term_name = self.template_func_args[0]
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333 metadata = {term_name: str_values}
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334
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335 return self.getUri(metadata)
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336
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337 else:
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338 # Normal route function.
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339 def template_func(*args):
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340 if len(args) != len(self.template_func_args):
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341 raise Exception(
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342 "Route function '%s' expected %d arguments, "
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343 "got %d." %
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344 (func_def, len(self.template_func_args),
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345 len(args)))
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346 metadata = {}
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347 for arg_name, arg_val in zip(self.template_func_args, args):
438
cff70eeb1cc1 bug: Fix routing bug introduced by 21e26ed867b6.
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diff changeset
348 #TODO: fix this hard-coded shit.
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diff changeset
349 if arg_name in ['year', 'month', 'day']:
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diff changeset
350 arg_val = int(arg_val)
3
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351 metadata[arg_name] = arg_val
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352 return self.getUri(metadata)
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353
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354 self.template_func = template_func
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355
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356
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357 class CompositeRouteFunction(object):
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358 def __init__(self):
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359 self._funcs = []
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360 self._arg_names = None
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361
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362 def addFunc(self, route):
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363 if self._arg_names is None:
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364 self._arg_names = sorted(route.template_func_args)
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365
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366 if sorted(route.template_func_args) != self._arg_names:
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367 raise Exception("Cannot merge route function with arguments '%s' "
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368 "with route function with arguments '%s'." %
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369 (route.template_func_args, self._arg_names))
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370 self._funcs.append((route, route.template_func))
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371
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diff changeset
372 def __call__(self, *args, **kwargs):
334
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diff changeset
373 if len(self._funcs) == 1 or len(args) == len(self._arg_names):
3
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374 f = self._funcs[0][1]
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375 return f(*args, **kwargs)
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376
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377 if len(args) == len(self._arg_names) + 1:
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378 f_args = args[:-1]
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379 for r, f in self._funcs:
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380 if r.source_name == args[-1]:
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381 return f(f_args, **kwargs)
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382 raise Exception("No such source: %s" % args[-1])
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diff changeset
383
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384 raise Exception("Incorrect number of arguments for route function. "
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385 "Expected '%s', got '%s'" % (self._arg_names, args))
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diff changeset
386