piecrust2: piecrust/data/iterators.py annotate

annotate piecrust/data/iterators.py @ 226:e9dc18a275ff

data: Add ability for `IPaginationSource`s to specify how to get settings. The `IPaginationSource` has a new `getSettingAccessor` method that returns how to access settings values on items in the pagination source. A default accessor is also available, which uses standard attribute lookup. Also clean some stuff in `LazyPageConfigData`.

author	Ludovic Chabant <ludovic@chabant.com>
date	Wed, 04 Feb 2015 23:49:52 -0800
parents	53b9df2263dc
children	8015fb40c28b

rev	line source
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	1 import logging
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	2 from piecrust.data.base import IPaginationSource
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	3 from piecrust.data.filters import PaginationFilter
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	4 from piecrust.events import Event
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	5
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	6
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	7 logger = logging.getLogger(__name__)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	8
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	9
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	10 class SliceIterator(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	11 def __init__(self, it, offset=0, limit=-1):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	12 self.it = it
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	13 self.offset = offset
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	14 self.limit = limit
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	15 self.current_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	16 self.has_more = False
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	17 self.inner_count = -1
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	18 self.next_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	19 self.prev_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	20 self._cache = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	21
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	22 def __iter__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	23 if self._cache is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	24 inner_list = list(self.it)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	25 self.inner_count = len(inner_list)
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	26
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	27 if self.limit > 0:
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	28 self.has_more = self.inner_count > (self.offset + self.limit)
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	29 self._cache = inner_list[self.offset:self.offset + self.limit]
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	30 else:
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	31 self.has_more = False
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	32 self._cache = inner_list[self.offset:]
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	33
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	34 if self.current_page:
21 53b9df2263dc Fix for pages listing pages from other sources. Ludovic Chabant <ludovic@chabant.com> parents: 16 diff changeset	35 try:
53b9df2263dc Fix for pages listing pages from other sources. Ludovic Chabant <ludovic@chabant.com> parents: 16 diff changeset	36 idx = inner_list.index(self.current_page)
53b9df2263dc Fix for pages listing pages from other sources. Ludovic Chabant <ludovic@chabant.com> parents: 16 diff changeset	37 except ValueError:
53b9df2263dc Fix for pages listing pages from other sources. Ludovic Chabant <ludovic@chabant.com> parents: 16 diff changeset	38 idx = -1
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	39 if idx >= 0:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	40 if idx < self.inner_count - 1:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	41 self.next_page = inner_list[idx + 1]
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	42 if idx > 0:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	43 self.prev_page = inner_list[idx - 1]
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	44
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	45 return iter(self._cache)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	46
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	47
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	48 class SettingFilterIterator(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	49 def __init__(self, it, fil_conf, page_accessor=None):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	50 self.it = it
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	51 self.fil_conf = fil_conf
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	52 self._fil = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	53 self.page_accessor = page_accessor
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	54
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	55 def __iter__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	56 if self._fil is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	57 self._fil = PaginationFilter()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	58 self._fil.addClausesFromConfig(self.fil_conf)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	59
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	60 for i in self.it:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	61 if self.page_accessor:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	62 page = self.page_accessor(i)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	63 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	64 page = i
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	65 if self._fil.pageMatches(page):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	66 yield i
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	67
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	68
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	69 class NaturalSortIterator(object):
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	70 def __init__(self, it, reverse=False):
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	71 self.it = it
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	72 self.reverse = reverse
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	73
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	74 def __iter__(self):
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	75 return iter(sorted(self.it, reverse=self.reverse))
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	76
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	77
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	78 class SettingSortIterator(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	79 def __init__(self, it, name, reverse=False, value_accessor=None):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	80 self.it = it
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	81 self.name = name
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	82 self.reverse = reverse
226 e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	83 self.value_accessor = value_accessor or self._default_value_accessor
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	84
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	85 def __iter__(self):
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	86 return iter(sorted(self.it, key=self._key_getter,
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	87 reverse=self.reverse))
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	88
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	89 def _key_getter(self, item):
226 e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	90 key = self.value_accessor(item, self.name)
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	91 if key is None:
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	92 return 0
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	93 return key
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	94
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	95 @staticmethod
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	96 def _default_value_accessor(item, name):
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	97 try:
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	98 return getattr(item, name)
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	99 except AttributeError:
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	100 return None
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	101
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	102
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	103 class PaginationFilterIterator(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	104 def __init__(self, it, fil):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	105 self.it = it
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	106 self._fil = fil
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	107
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	108 def __iter__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	109 for page in self.it:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	110 if self._fil.pageMatches(page):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	111 yield page
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	112
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	113
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	114 class PageIterator(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	115 def __init__(self, source, current_page=None, pagination_filter=None,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	116 offset=0, limit=-1, locked=False):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	117 self._source = source
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	118 self._current_page = current_page
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	119 self._locked = False
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	120 self._pages = source
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	121 self._pagesData = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	122 self._pagination_slicer = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	123 self._has_sorter = False
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	124 self._next_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	125 self._prev_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	126 self._iter_event = Event()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	127
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	128 if isinstance(source, IPaginationSource):
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	129 src_it = source.getSourceIterator()
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	130 if src_it is not None:
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	131 self._pages = src_it
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	132
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	133 # Apply any filter first, before we start sorting or slicing.
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	134 if pagination_filter is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	135 self._simpleNonSortedWrap(PaginationFilterIterator,
226 e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	136 pagination_filter)
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	137
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	138 if offset > 0 or limit > 0:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	139 self.slice(offset, limit)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	140
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	141 self._locked = locked
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	142
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	143 @property
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	144 def total_count(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	145 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	146 if self._pagination_slicer is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	147 return self._pagination_slicer.inner_count
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	148 return len(self._pagesData)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	149
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	150 @property
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	151 def next_page(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	152 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	153 return self._next_page
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	154
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	155 @property
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	156 def prev_page(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	157 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	158 return self._prev_page
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	159
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	160 def __len__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	161 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	162 return len(self._pagesData)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	163
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	164 def __getitem__(self, key):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	165 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	166 return self._pagesData[key]
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	167
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	168 def __iter__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	169 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	170 self._iter_event.fire()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	171 return iter(self._pagesData)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	172
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	173 def __getattr__(self, name):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	174 if name[:3] == 'is_' or name[:3] == 'in_':
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	175 def is_filter(value):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	176 conf = {'is_%s' % name[3:]: value}
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	177 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	178 return is_filter
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	179
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	180 if name[:4] == 'has_':
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	181 def has_filter(value):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	182 conf = {name: value}
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	183 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	184 return has_filter
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	185
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	186 if name[:5] == 'with_':
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	187 def has_filter(value):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	188 conf = {'has_%s' % name[5:]: value}
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	189 return self._simpleNonSortedWrap(SettingFilterIterator, conf)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	190 return has_filter
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	191
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	192 return self.__getattribute__(name)
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	193
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	194 def skip(self, count):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	195 return self._simpleWrap(SliceIterator, count)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	196
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	197 def limit(self, count):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	198 return self._simpleWrap(SliceIterator, 0, count)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	199
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	200 def slice(self, skip, limit):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	201 return self._simpleWrap(SliceIterator, skip, limit)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	202
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	203 def filter(self, filter_name):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	204 if self._current_page is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	205 raise Exception("Can't use `filter()` because no parent page was "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	206 "set for this page iterator.")
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	207 filter_conf = self._current_page.config.get(filter_name)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	208 if filter_conf is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	209 raise Exception("Couldn't find filter '%s' in the configuration "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	210 "header for page: %s" %
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	211 (filter_name, self._current_page.path))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	212 return self._simpleNonSortedWrap(SettingFilterIterator, filter_conf)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	213
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	214 def sort(self, setting_name=None, reverse=False):
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	215 self._ensureUnlocked()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	216 self._unload()
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	217 if setting_name is not None:
226 e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	218 accessor = None
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	219 if not isinstance(self._source, IPaginationSource):
e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	220 accessor = self._source.getSettingAccessor()
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	221 self._pages = SettingSortIterator(self._pages, setting_name,
226 e9dc18a275ff data: Add ability for `IPaginationSource`s to specify how to get settings. Ludovic Chabant <ludovic@chabant.com> parents: 21 diff changeset	222 reverse, accessor)
10 cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	223 else:
cd35d356ccce Fix some bugs with iterators, add some unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 6 diff changeset	224 self._pages = NaturalSortIterator(self._pages, reverse)
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	225 self._has_sorter = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	226 return self
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	227
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	228 def reset(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	229 self._ensureUnlocked()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	230 self._unload
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	231 return self
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	232
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	233 @property
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	234 def _has_more(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	235 self._load()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	236 if self._pagination_slicer:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	237 return self._pagination_slicer.has_more
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	238 return False
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	239
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	240 def _simpleWrap(self, it_class, args, *kwargs):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	241 self._ensureUnlocked()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	242 self._unload()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	243 self._ensureSorter()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	244 self._pages = it_class(self._pages, args, *kwargs)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	245 if self._pagination_slicer is None and it_class is SliceIterator:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	246 self._pagination_slicer = self._pages
16 3a13b43e77c1 Correctly set the current page on a pagination slicer. Ludovic Chabant <ludovic@chabant.com> parents: 10 diff changeset	247 self._pagination_slicer.current_page = self._current_page
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	248 return self
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	249
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	250 def _simpleNonSortedWrap(self, it_class, args, *kwargs):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	251 self._ensureUnlocked()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	252 self._unload()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	253 self._pages = it_class(self._pages, args, *kwargs)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	254 return self
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	255
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	256 def _ensureUnlocked(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	257 if self._locked:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	258 raise Exception(
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	259 "This page iterator has been locked, probably because "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	260 "you're trying to tamper with pagination data.")
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	261
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	262 def _ensureSorter(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	263 if self._has_sorter:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	264 return
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	265 if isinstance(self._source, IPaginationSource):
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	266 sort_it = self._source.getSorterIterator(self._pages)
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	267 if sort_it is not None:
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	268 self._pages = sort_it
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	269 self._has_sorter = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	270
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	271 def _unload(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	272 self._pagesData = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	273 self._next_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	274 self._prev_page = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	275
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	276 def _load(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	277 if self._pagesData is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	278 return
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	279
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	280 self._ensureSorter()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	281
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	282 it_chain = self._pages
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	283 is_pgn_source = False
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	284 if isinstance(self._source, IPaginationSource):
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	285 is_pgn_source = True
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	286 tail_it = self._source.getTailIterator(self._pages)
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	287 if tail_it is not None:
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	288 it_chain = tail_it
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	289
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	290 self._pagesData = list(it_chain)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	291
6 f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	292 if is_pgn_source and self._current_page and self._pagination_slicer:
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	293 pn = [self._pagination_slicer.prev_page,
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	294 self._pagination_slicer.next_page]
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	295 pn_it = self._source.getTailIterator(iter(pn))
f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests. Ludovic Chabant <ludovic@chabant.com> parents: 3 diff changeset	296 self._prev_page, self._next_page = (list(pn_it))
3 f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional. Ludovic Chabant <ludovic@chabant.com> parents: diff changeset	297

Mercurial > piecrust2

annotate piecrust/data/iterators.py @ 226:e9dc18a275ff