Mercurial > piecrust2

annotate piecrust/data/paginationdata.py @ 550:6f216c1ab6b1

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bake: Add a flag to know which record entries got collapsed from last run. This makes it possible to find entries for things that were actually baked during the current run, as opposed to skipped because they were "clean".
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 04 Aug 2015 21:22:30 -0700
parents 32c7c2d219d2
children ab5c6a8ae90a
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1 import time
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2 from piecrust.data.assetor import Assetor
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3 from piecrust.data.pagedata import LazyPageConfigData
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4 from piecrust.routing import create_route_metadata
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5 from piecrust.uriutil import split_uri
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6
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7
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8 class PaginationData(LazyPageConfigData):
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9 def __init__(self, page):
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10 super(PaginationData, self).__init__(page)
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11 self._route = None
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12 self._route_metadata = None
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13
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14 def _get_uri(self):
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15 page = self._page
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16 if self._route is None:
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17 # TODO: this is not quite correct, as we're missing parts of the
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18 # route metadata if the current page is a taxonomy page.
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19 route_metadata = create_route_metadata(page)
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20 self._route = page.app.getRoute(page.source.name, route_metadata)
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21 self._route_metadata = route_metadata
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22 if self._route is None:
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23 raise Exception("Can't get route for page: %s" % page.path)
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24 return self._route.getUri(self._route_metadata)
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25
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26 def _load(self):
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27 page = self._page
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28 page_url = self._get_uri()
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29 _, slug = split_uri(page.app, page_url)
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30 self._setValue('url', page_url)
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31 self._setValue('slug', slug)
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32 self._setValue(
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33 'timestamp',
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34 time.mktime(page.datetime.timetuple()))
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35 date_format = page.app.config.get('site/date_format')
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36 if date_format:
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37 self._setValue('date', page.datetime.strftime(date_format))
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38 self._setValue('mtime', page.path_mtime)
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39
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40 assetor = Assetor(page, page_url)
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41 self._setValue('assets', assetor)
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42
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43 segment_names = page.config.get('segments')
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44 for name in segment_names:
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45 self._mapLoader(name, self._load_rendered_segment)
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46
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47 def _load_rendered_segment(self, data, name):
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48 do_render = True
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49 eis = self._page.app.env.exec_info_stack
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50 if eis is not None and eis.hasPage(self._page):
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51 # This is the pagination data for the page that is currently
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52 # being rendered! Inception! But this is possible... so just
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53 # prevent infinite recursion.
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54 do_render = False
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55
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56 assert self is data
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57
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58 if do_render:
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59 uri = self._get_uri()
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60 try:
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61 from piecrust.rendering import (
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62 QualifiedPage, PageRenderingContext,
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63 render_page_segments)
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64 qp = QualifiedPage(self._page, self._route,
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65 self._route_metadata)
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66 ctx = PageRenderingContext(qp)
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67 render_result = render_page_segments(ctx)
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68 segs = render_result.segments
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69 except Exception as e:
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70 raise Exception(
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71 "Error rendering segments for '%s'" % uri) from e
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72 else:
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73 segs = {}
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74 for name in self._page.config.get('segments'):
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75 segs[name] = "<unavailable: current page>"
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76
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77 for k, v in segs.items():
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78 self._unmapLoader(k)
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79 self._setValue(k, v)
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80
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81 if 'content.abstract' in segs:
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82 self._setValue('content', segs['content.abstract'])
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83 self._setValue('has_more', True)
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84 if name == 'content':
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85 return segs['content.abstract']
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86
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87 return segs[name]
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88