Mercurial > piecrust2

annotate piecrust/dataproviders/pageiterator.py @ 1148:0aeb6f18d6a0

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bake: Don't crash if a source doesn't implement related items.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 10 Jul 2018 21:01:45 -0700
parents d4e0c53aa6e8
children a9a592f655e3
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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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10
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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._load_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 if rcs.current_ctx is not None:
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86 rcs.current_ctx.addUsedSource(it._source)
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87 self._iterated = True
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88
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89 def _addSource(self, source):
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90 if self._it is not None:
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91 raise Exception("Can't add sources after the data provider "
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92 "has been loaded.")
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93 super()._addSource(source)
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94
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95 def _debugRenderDoc(self):
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96 return 'Provides a list of %d items' % len(self)
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97
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98
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99 class PageIterator:
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100 def __init__(self, source, *, current_page=None):
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101 self._source = source
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102 self._is_content_source = isinstance(
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103 source, (ContentSource, _CombinedSource))
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104 self._cache = None
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105 self._pagination_slicer = None
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106 self._has_sorter = False
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107 self._next_page = None
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108 self._prev_page = None
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109 self._locked = False
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110 self._load_event = Event()
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111 self._iter_event = Event()
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112 self._current_page = current_page
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113 self._initIterator()
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114
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115 @property
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116 def total_count(self):
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117 self._load()
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118 if self._pagination_slicer is not None:
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119 return self._pagination_slicer.inner_count
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120 return len(self._cache)
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121
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122 @property
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123 def next_page(self):
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124 self._load()
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125 return self._next_page
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126
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parents:
diff changeset
127 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
128 def prev_page(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
129 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
130 return self._prev_page
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
131
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
132 def __len__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
133 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
134 return len(self._cache)
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
135
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
136 def __getitem__(self, key):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
137 self._load()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
138 return self._cache[key]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
139
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
140 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
141 self._load()
982
492b66482f12 pagination: Fix bad bug where all pages triggered pagination.
Ludovic Chabant <ludovic@chabant.com>
parents: 979
diff changeset
142 self._iter_event.fire(self)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
143 return iter(self._cache)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
144
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
145 def __getattr__(self, name):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
146 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
147 def is_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
148 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
149 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
150 return is_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
151
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
152 if name[:4] == 'has_':
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
153 def has_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
154 conf = {name: value}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
155 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
156 return has_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
157
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
158 if name[:5] == 'with_':
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
159 def has_filter(value):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
160 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
161 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
162 return has_filter
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
163
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
164 return self.__getattribute__(name)
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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 skip(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, 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 limit(self, count):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
170 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
171
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
172 def slice(self, skip, limit):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
173 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
174
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
175 def filter(self, filter_name):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
176 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
177 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
178 "set for this page iterator.")
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
179 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
180 if filter_conf is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
181 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
182 "header for page: %s" %
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
183 (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
184 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
185
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
186 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
187 if setting_name:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
188 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
189 else:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
190 self._wrapAsSort(NaturalSortIterator, reverse)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
191 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
192
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
193 def reset(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
194 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
195 self._unload()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
196 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
197
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
198 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
199 def _is_loaded(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
200 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
201
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
202 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
203 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
204 self._load()
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
205 if self._pagination_slicer:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
206 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
207 return False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
208
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
209 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
210 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
211 self._ensureUnloaded()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
212 self._ensureSorter()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
213 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
214 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
215 self._pagination_slicer = self._it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
216 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
217 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
218
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
219 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
220 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
221 self._ensureUnloaded()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
222 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
223 return self
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
224
856
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
225 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
226 self._ensureUnlocked()
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
227 self._ensureUnloaded()
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
228 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
229 self._has_sorter = True
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
230 return self
9bb22bbe093c refactor: Make the blog archives functional again.
Ludovic Chabant <ludovic@chabant.com>
parents: 854
diff changeset
231
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
232 def _lockIterator(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
233 self._ensureUnlocked()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
234 self._locked = True
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
235
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
236 def _ensureUnlocked(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
237 if self._locked:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
238 raise Exception(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
239 "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
240
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
241 def _ensureUnloaded(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
242 if self._cache:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
243 raise Exception(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
244 "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
245 "can't be modified anymore.")
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
246
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
247 def _ensureSorter(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
248 if self._has_sorter:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
249 return
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
250 if self._is_content_source:
939
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
251 # For content sources, the default sorting is reverse
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
252 # date/time sorting.
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
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diff changeset
253 self._it = DateSortIterator(self._it, reverse=True)
854
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diff changeset
254 self._has_sorter = True
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diff changeset
255
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diff changeset
256 def _initIterator(self):
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diff changeset
257 if self._is_content_source:
979
45ad976712ec tests: Big push to get the tests to pass again.
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parents: 939
diff changeset
258 if isinstance(self._source, _CombinedSource):
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diff changeset
259 self._it = self._source
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diff changeset
260 else:
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diff changeset
261 self._it = PageContentSourceIterator(self._source)
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diff changeset
262
939
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diff changeset
263 app = self._source.app
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
264 if app.config.get('baker/is_baking'):
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diff changeset
265 # While baking, automatically exclude any page with
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diff changeset
266 # the `draft` setting.
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diff changeset
267 draft_setting = app.config['baker/no_bake_setting']
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diff changeset
268 self._it = NoDraftsIterator(self._it, draft_setting)
867
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diff changeset
269 else:
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diff changeset
270 self._it = GenericSourceIterator(self._source)
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diff changeset
271
854
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
272 def _unload(self):
867
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diff changeset
273 self._initIterator()
854
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diff changeset
274 self._cache = None
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diff changeset
275 self._paginationSlicer = None
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diff changeset
276 self._has_sorter = False
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diff changeset
277 self._next_page = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
278 self._prev_page = None
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parents:
diff changeset
279
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
280 def _load(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
281 if self._cache is not None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
282 return
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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diff changeset
283
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
284 self._ensureSorter()
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
285
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
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diff changeset
286 if self._is_content_source:
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
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diff changeset
287 self._it = PaginationDataBuilderIterator(self._it)
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
288
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
289 self._cache = list(self._it)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
290
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
291 if (self._current_page is not None and
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
292 self._pagination_slicer is not None):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
293 pn = [self._pagination_slicer.prev_page,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
294 self._pagination_slicer.next_page]
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
295 pn_it = PaginationDataBuilderIterator(iter(pn))
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
296 self._prev_page, self._next_page = (list(pn_it))
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
297
982
492b66482f12 pagination: Fix bad bug where all pages triggered pagination.
Ludovic Chabant <ludovic@chabant.com>
parents: 979
diff changeset
298 self._load_event.fire(self)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
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parents:
diff changeset
299
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
300 def _debugRenderDoc(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
301 return "Contains %d items" % len(self)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
302
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
303
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
304 class SettingFilterIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
305 def __init__(self, it, fil_conf):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
306 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
307 self.fil_conf = fil_conf
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
308 self._fil = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
309
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
310 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
311 if self._fil is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
312 self._fil = PaginationFilter()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
313 self._fil.addClausesFromConfig(self.fil_conf)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
314
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
315 for i in self.it:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
316 if self._fil.pageMatches(i):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
317 yield i
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
318
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
319
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
320 class HardCodedFilterIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
321 def __init__(self, it, fil):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
322 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
323 self._fil = fil
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
324
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
325 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
326 for i in self.it:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
327 if self._fil.pageMatches(i):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
328 yield i
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
329
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 class SliceIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
332 def __init__(self, it, offset=0, limit=-1):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
333 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
334 self.offset = offset
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
335 self.limit = limit
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
336 self.current_page = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
337 self.has_more = False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
338 self.inner_count = -1
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
339 self.next_page = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
340 self.prev_page = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
341 self._cache = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
342
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
343 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
344 if self._cache is None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
345 inner_list = list(self.it)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
346 self.inner_count = len(inner_list)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
347
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
348 if self.limit > 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
349 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
350 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
351 else:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
352 self.has_more = False
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
353 self._cache = inner_list[self.offset:]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
354
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
355 if self.current_page:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
356 try:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
357 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
358 except ValueError:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
359 idx = -1
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
360 if idx >= 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
361 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
362 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
363 if idx > 0:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
364 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
365
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
366 return iter(self._cache)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
367
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
368
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
369 class NaturalSortIterator:
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
370 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
371 self.it = it
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
372 self.reverse = reverse
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
373
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
374 def __iter__(self):
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
375 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
376
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
377
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
378 class SettingSortIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
379 def __init__(self, it, name, reverse=False):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
380 self.it = it
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
381 self.name = name
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
382 self.reverse = reverse
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
383
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
384 def __iter__(self):
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
385 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:
diff changeset
386 reverse=self.reverse))
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
387
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
388 def _key_getter(self, item):
979
45ad976712ec tests: Big push to get the tests to pass again.
Ludovic Chabant <ludovic@chabant.com>
parents: 939
diff changeset
389 key = item.config.get(self.name)
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
390 if key is None:
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
391 return 0
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
392 return key
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
393
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
394
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
395 class DateSortIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
396 def __init__(self, it, reverse=True):
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
397 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
398 self.reverse = reverse
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
399
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
400 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
401 return iter(sorted(self.it,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
402 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
403
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 class PageContentSourceIterator:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
406 def __init__(self, source):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
407 self.source = source
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
408
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
409 # 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
410 # iterator chain. It acts as the end.
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
411 self.it = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
412
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
413 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
414 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
415 yield from source.getAllPages()
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
416
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
417
939
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
418 class NoDraftsIterator:
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
419 def __init__(self, source, no_draft_setting):
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
420 self.it = source
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
421 self.no_draft_setting = no_draft_setting
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
422
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
423 def __iter__(self):
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
424 nds = self.no_draft_setting
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
425 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
426
abc52a6262a1 bake: Support the `draft` setting.
Ludovic Chabant <ludovic@chabant.com>
parents: 905
diff changeset
427
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
428 class PaginationDataBuilderIterator:
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
429 def __init__(self, it):
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
430 self.it = it
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
431
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
432 def __iter__(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
433 for page in self.it:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
434 if page is not None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
435 yield PaginationData(page)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
436 else:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
437 yield None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
438
867
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
439
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
440 class GenericSourceIterator:
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
441 def __init__(self, source):
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
442 self.source = source
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
443 self.it = None
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
444
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
445 def __iter__(self):
757fba54bfd3 refactor: Improve pagination and iterators to work with other sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 856
diff changeset
446 yield from self.source