annotate piecrust/dataproviders/pageiterator.py @ 979:45ad976712ec

tests: Big push to get the tests to pass again. - Lots of fixes everywhere in the code. - Try to handle debug logging in the multiprocessing worker pool when running in pytest. Not perfect, but usable for now. - Replace all `.md` test files with `.html` since now a auto-format extension always sets the format. - Replace `out` with `outfiles` in most places since now blog archives are added to the bake output and I don't want to add expected outputs for blog archives everywhere.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 29 Oct 2017 22:51:57 -0700
parents abc52a6262a1
children 492b66482f12
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1 import logging
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2 from piecrust.data.filters import PaginationFilter
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3 from piecrust.data.paginationdata import PaginationData
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4 from piecrust.events import Event
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5 from piecrust.dataproviders.base import DataProvider
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6 from piecrust.sources.base import ContentSource
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7
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8
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9 logger = logging.getLogger(__name__)
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11
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12 class _CombinedSource:
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13 def __init__(self, sources):
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14 self.sources = sources
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15 self.app = sources[0].app
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16 self.name = None
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17
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18 # This is for recursive traversal of the iterator chain.
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19 # See later in `PageIterator`.
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20 self.it = None
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21
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22 def __iter__(self):
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23 sources = self.sources
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24
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25 if len(sources) == 1:
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26 source = sources[0]
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27 self.name = source.name
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28 yield from source.getAllPages()
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29 self.name = None
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30 return
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31
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32 # Return the pages from all the combined sources, but skip
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33 # those that are "overridden" -- e.g. a theme page that gets
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34 # replaced by a user page of the same name.
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35 used_uris = set()
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36 for source in sources:
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37 self.name = source.name
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38 for page in source.getAllPages():
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39 page_uri = page.getUri()
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40 if page_uri not in used_uris:
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41 used_uris.add(page_uri)
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42 yield page
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43
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44 self.name = None
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45
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46
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47 class PageIteratorDataProvider(DataProvider):
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48 """ A data provider that reads a content source as a list of pages.
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49
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50 This class supports wrapping another `PageIteratorDataProvider`
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51 instance because several sources may want to be merged under the
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52 same data endpoint (e.g. `site.pages` which lists both the user
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53 pages and the theme pages).
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54 """
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55 PROVIDER_NAME = 'page_iterator'
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56
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57 debug_render_doc_dynamic = ['_debugRenderDoc']
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58 debug_render_not_empty = True
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59
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60 def __init__(self, source, page):
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61 super().__init__(source, page)
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62 self._app = source.app
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63 self._it = None
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64 self._iterated = False
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65
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66 def __len__(self):
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67 self._load()
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68 return len(self._it)
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69
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70 def __iter__(self):
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71 self._load()
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72 yield from self._it
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73
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74 def _load(self):
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75 if self._it is not None:
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76 return
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77
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78 combined_source = _CombinedSource(list(reversed(self._sources)))
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79 self._it = PageIterator(combined_source, current_page=self._page)
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80 self._it._iter_event += self._onIteration
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81
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82 def _onIteration(self, it):
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83 if not self._iterated:
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84 rcs = self._app.env.render_ctx_stack
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85 rcs.current_ctx.addUsedSource(it._source)
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86 self._iterated = True
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87
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88 def _addSource(self, source):
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89 if self._it is not None:
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90 raise Exception("Can't add sources after the data provider "
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91 "has been loaded.")
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92 super()._addSource(source)
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93
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94 def _debugRenderDoc(self):
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95 return 'Provides a list of %d items' % len(self)
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96
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97
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98 class PageIterator:
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99 def __init__(self, source, *, current_page=None):
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100 self._source = source
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101 self._is_content_source = isinstance(
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102 source, (ContentSource, _CombinedSource))
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103 self._cache = None
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104 self._pagination_slicer = None
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105 self._has_sorter = False
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106 self._next_page = None
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107 self._prev_page = None
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108 self._locked = False
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109 self._iter_event = Event()
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110 self._current_page = current_page
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111 self._initIterator()
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112
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113 @property
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114 def total_count(self):
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115 self._load()
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116 if self._pagination_slicer is not None:
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117 return self._pagination_slicer.inner_count
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118 return len(self._cache)
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119
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120 @property
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121 def next_page(self):
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122 self._load()
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123 return self._next_page
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124
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125 @property
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126 def prev_page(self):
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parents:
diff changeset
127 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
128 return self._prev_page
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
129
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
130 def __len__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
131 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
132 return len(self._cache)
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
133
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
134 def __getitem__(self, key):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
135 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
136 return self._cache[key]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
137
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
138 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
139 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
140 return iter(self._cache)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
141
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
142 def __getattr__(self, name):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
143 if name[:3] == 'is_' or name[:3] == 'in_':
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
144 def is_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
145 conf = {'is_%s' % name[3:]: value}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
146 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
147 return is_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
148
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
149 if name[:4] == 'has_':
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
150 def has_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
151 conf = {name: value}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
152 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
153 return has_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
154
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
155 if name[:5] == 'with_':
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
156 def has_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
157 conf = {'has_%s' % name[5:]: value}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
158 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
159 return has_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
160
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
161 return self.__getattribute__(name)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
162
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
163 def skip(self, count):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
164 return self._simpleWrap(SliceIterator, count)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
165
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
166 def limit(self, count):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
167 return self._simpleWrap(SliceIterator, 0, count)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
168
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
169 def slice(self, skip, limit):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
170 return self._simpleWrap(SliceIterator, skip, limit)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
171
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
172 def filter(self, filter_name):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
173 if self._current_page is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
174 raise Exception("Can't use `filter()` because no parent page was "
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
175 "set for this page iterator.")
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
176 filter_conf = self._current_page.config.get(filter_name)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
177 if filter_conf is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
178 raise Exception("Couldn't find filter '%s' in the configuration "
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
179 "header for page: %s" %
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
180 (filter_name, self._current_page.path))
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
181 return self._simpleNonSortedWrap(SettingFilterIterator, filter_conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
182
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
183 def sort(self, setting_name=None, reverse=False):
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
184 if setting_name:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
185 self._wrapAsSort(SettingSortIterator, setting_name, reverse)
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
186 else:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
187 self._wrapAsSort(NaturalSortIterator, reverse)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
188 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
189
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
190 def reset(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
191 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
192 self._unload()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
193 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
194
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
195 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
196 def _is_loaded(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
197 return self._cache is not None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
198
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
199 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
200 def _has_more(self):
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
201 self._load()
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
202 if self._pagination_slicer:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
203 return self._pagination_slicer.has_more
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
204 return False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
205
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
206 @property
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
207 def _is_loaded_and_has_more(self):
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
208 return self._is_loaded and self._has_more
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
209
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
210 def _simpleWrap(self, it_class, *args, **kwargs):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
211 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
212 self._ensureUnloaded()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
213 self._ensureSorter()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
214 self._it = it_class(self._it, *args, **kwargs)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
215 if self._pagination_slicer is None and it_class is SliceIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
216 self._pagination_slicer = self._it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
217 self._pagination_slicer.current_page = self._current_page
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
218 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
219
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
220 def _simpleNonSortedWrap(self, it_class, *args, **kwargs):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
221 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
222 self._ensureUnloaded()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
223 self._it = it_class(self._it, *args, **kwargs)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
224 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
225
856
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
226 def _wrapAsSort(self, sort_it_class, *args, **kwargs):
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
227 self._ensureUnlocked()
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
228 self._ensureUnloaded()
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
229 self._it = sort_it_class(self._it, *args, **kwargs)
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
230 self._has_sorter = True
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
231 return self
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
232
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
233 def _lockIterator(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
234 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
235 self._locked = True
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
236
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
237 def _ensureUnlocked(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
238 if self._locked:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
239 raise Exception(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
240 "This page iterator has been locked and can't be modified.")
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
241
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
242 def _ensureUnloaded(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
243 if self._cache:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
244 raise Exception(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
245 "This page iterator has already been iterated upon and "
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
246 "can't be modified anymore.")
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
247
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
248 def _ensureSorter(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
249 if self._has_sorter:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
250 return
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
251 if self._is_content_source:
939
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
252 # For content sources, the default sorting is reverse
abc52a6262a1 bake: Support the `draft` setting.
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253 # date/time sorting.
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254 self._it = DateSortIterator(self._it, reverse=True)
854
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255 self._has_sorter = True
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256
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257 def _initIterator(self):
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258 if self._is_content_source:
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259 if isinstance(self._source, _CombinedSource):
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260 self._it = self._source
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261 else:
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262 self._it = PageContentSourceIterator(self._source)
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263
939
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264 app = self._source.app
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265 if app.config.get('baker/is_baking'):
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266 # While baking, automatically exclude any page with
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267 # the `draft` setting.
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268 draft_setting = app.config['baker/no_bake_setting']
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269 self._it = NoDraftsIterator(self._it, draft_setting)
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270 else:
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271 self._it = GenericSourceIterator(self._source)
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272
854
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273 def _unload(self):
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274 self._initIterator()
854
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275 self._cache = None
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276 self._paginationSlicer = None
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277 self._has_sorter = False
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278 self._next_page = None
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279 self._prev_page = None
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280
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281 def _load(self):
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282 if self._cache is not None:
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283 return
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284
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285 self._ensureSorter()
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diff changeset
286
867
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287 if self._is_content_source:
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288 self._it = PaginationDataBuilderIterator(self._it)
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diff changeset
289
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
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290 self._cache = list(self._it)
854
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diff changeset
291
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
292 if (self._current_page is not None and
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diff changeset
293 self._pagination_slicer is not None):
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diff changeset
294 pn = [self._pagination_slicer.prev_page,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
295 self._pagination_slicer.next_page]
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
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diff changeset
296 pn_it = PaginationDataBuilderIterator(iter(pn))
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
297 self._prev_page, self._next_page = (list(pn_it))
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diff changeset
298
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diff changeset
299 self._iter_event.fire(self)
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diff changeset
300
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
301 def _debugRenderDoc(self):
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diff changeset
302 return "Contains %d items" % len(self)
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parents:
diff changeset
303
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
304
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
305 class SettingFilterIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
306 def __init__(self, it, fil_conf):
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diff changeset
307 self.it = it
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diff changeset
308 self.fil_conf = fil_conf
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diff changeset
309 self._fil = None
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parents:
diff changeset
310
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
311 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
312 if self._fil is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
313 self._fil = PaginationFilter()
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parents:
diff changeset
314 self._fil.addClausesFromConfig(self.fil_conf)
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parents:
diff changeset
315
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
316 for i in self.it:
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parents:
diff changeset
317 if self._fil.pageMatches(i):
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parents:
diff changeset
318 yield i
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parents:
diff changeset
319
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
320
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
321 class HardCodedFilterIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
322 def __init__(self, it, fil):
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diff changeset
323 self.it = it
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
324 self._fil = fil
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
325
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
326 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
327 for i in self.it:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
328 if self._fil.pageMatches(i):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
329 yield i
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
330
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
331
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
332 class SliceIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
333 def __init__(self, it, offset=0, limit=-1):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
334 self.it = it
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
335 self.offset = offset
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diff changeset
336 self.limit = limit
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diff changeset
337 self.current_page = None
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parents:
diff changeset
338 self.has_more = False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
339 self.inner_count = -1
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
340 self.next_page = None
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diff changeset
341 self.prev_page = None
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diff changeset
342 self._cache = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
343
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
344 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
345 if self._cache is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
346 inner_list = list(self.it)
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
347 self.inner_count = len(inner_list)
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parents:
diff changeset
348
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
349 if self.limit > 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
350 self.has_more = self.inner_count > (self.offset + self.limit)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
351 self._cache = inner_list[self.offset:self.offset + self.limit]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
352 else:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
353 self.has_more = False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
354 self._cache = inner_list[self.offset:]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
355
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
356 if self.current_page:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
357 try:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
358 idx = inner_list.index(self.current_page)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
359 except ValueError:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
360 idx = -1
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
361 if idx >= 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
362 if idx < self.inner_count - 1:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
363 self.next_page = inner_list[idx + 1]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
364 if idx > 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
365 self.prev_page = inner_list[idx - 1]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
366
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
367 return iter(self._cache)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
368
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
369
979
45ad976712ec tests: Big push to get the tests to pass again.
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parents: 939
diff changeset
370 class NaturalSortIterator:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
371 def __init__(self, it, reverse=False):
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
372 self.it = it
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
373 self.reverse = reverse
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
374
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
375 def __iter__(self):
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
376 return iter(sorted(self.it, reverse=self.reverse))
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
377
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
378
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
379 class SettingSortIterator:
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parents:
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380 def __init__(self, it, name, reverse=False):
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381 self.it = it
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Ludovic Chabant <ludovic@chabant.com>
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382 self.name = name
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Ludovic Chabant <ludovic@chabant.com>
parents:
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383 self.reverse = reverse
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Ludovic Chabant <ludovic@chabant.com>
parents:
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384
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385 def __iter__(self):
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Ludovic Chabant <ludovic@chabant.com>
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386 return iter(sorted(self.it, key=self._key_getter,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
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387 reverse=self.reverse))
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
388
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389 def _key_getter(self, item):
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45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
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390 key = item.config.get(self.name)
854
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391 if key is None:
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Ludovic Chabant <ludovic@chabant.com>
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392 return 0
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Ludovic Chabant <ludovic@chabant.com>
parents:
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393 return key
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
394
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
395
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
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396 class DateSortIterator:
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
397 def __init__(self, it, reverse=True):
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Ludovic Chabant <ludovic@chabant.com>
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398 self.it = it
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
399 self.reverse = reverse
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
400
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
401 def __iter__(self):
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
402 return iter(sorted(self.it,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
403 key=lambda x: x.datetime, reverse=self.reverse))
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
404
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
405
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
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406 class PageContentSourceIterator:
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Ludovic Chabant <ludovic@chabant.com>
parents:
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407 def __init__(self, source):
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
408 self.source = source
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
409
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
410 # This is to permit recursive traversal of the
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
411 # iterator chain. It acts as the end.
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
412 self.it = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
413
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
414 def __iter__(self):
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
415 source = self.source
905
1d0364614665 internal: Sources can cache their pages in addition to their items.
Ludovic Chabant <ludovic@chabant.com>
parents: 877
diff changeset
416 yield from source.getAllPages()
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
417
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
418
939
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
419 class NoDraftsIterator:
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
420 def __init__(self, source, no_draft_setting):
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
421 self.it = source
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
422 self.no_draft_setting = no_draft_setting
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Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
423
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
424 def __iter__(self):
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Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
425 nds = self.no_draft_setting
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Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
426 yield from filter(lambda i: not i.config.get(nds), self.it)
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
427
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
428
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
429 class PaginationDataBuilderIterator:
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
430 def __init__(self, it):
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
431 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
432
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
433 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
434 for page in self.it:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
435 if page is not None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
436 yield PaginationData(page)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
437 else:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
438 yield None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
439
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
440
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
441 class GenericSourceIterator:
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
442 def __init__(self, source):
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
443 self.source = source
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
444 self.it = None
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
445
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
446 def __iter__(self):
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
447 yield from self.source