Mercurial > piecrust2

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

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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 7decf00eee47
children 879fe1457e48
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 import re
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2 import time
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3 import logging
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4 from piecrust import APP_VERSION
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5 from piecrust.configuration import merge_dicts
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6 from piecrust.data.assetor import Assetor
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7 from piecrust.data.debug import build_debug_info
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8 from piecrust.data.linker import Linker, RecursiveLinker
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9 from piecrust.data.paginator import Paginator
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10 from piecrust.uriutil import get_slug, get_first_sub_uri
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13 logger = logging.getLogger(__name__)
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15
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16 class DataBuildingContext(object):
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17 def __init__(self, page, uri, page_num=1):
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18 self.page = page
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19 self.uri = uri
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20 self.page_num = page_num
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21 self.pagination_source = None
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22 self.pagination_filter = None
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23
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24 @property
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25 def slug(self):
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26 return get_slug(self.page.app, self.uri)
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27
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29 def build_page_data(ctx):
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30 page = ctx.page
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31 app = page.app
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32 first_uri = get_first_sub_uri(app, ctx.uri)
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34 pc_data = PieCrustData()
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35 pgn_source = ctx.pagination_source or get_default_pagination_source(page)
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36 paginator = Paginator(page, pgn_source, first_uri, ctx.page_num,
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37 ctx.pagination_filter)
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38 assetor = Assetor(page, first_uri)
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39 recursive_linker = RecursiveLinker(page.source, page_path=page.rel_path)
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40 data = {
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41 'piecrust': pc_data,
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42 'page': dict(page.config.get()),
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43 'assets': assetor,
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44 'pagination': paginator,
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45 'family': recursive_linker
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46 }
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47 page_data = data['page']
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48 page_data['url'] = ctx.uri
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49 page_data['slug'] = ctx.slug
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50 page_data['timestamp'] = time.mktime(page.datetime.timetuple())
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51 date_format = app.config.get('site/date_format')
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52 if date_format:
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53 page_data['date'] = page.datetime.strftime(date_format)
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54
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55 #TODO: handle slugified taxonomy terms.
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56
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57 site_data = build_site_data(page)
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58 merge_dicts(data, site_data)
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59
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60 # Do this at the end because we want all the data to be ready to be
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61 # displayed in the debugger window.
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62 if (app.config.get('site/show_debug_info') and
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63 not app.config.get('baker/is_baking')):
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64 pc_data._enableDebugInfo(page, data)
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66 return data
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68
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69 def build_layout_data(page, page_data, contents):
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70 data = dict(page_data)
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71 for name, txt in contents.items():
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72 if name in data:
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73 logger.warning("Content segment '%s' will hide existing data." %
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74 name)
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75 data[name] = txt
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76 return data
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78
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79 class PieCrustData(object):
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80 debug_render = ['version', 'url', 'branding', 'debug_info']
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81 debug_render_invoke = ['version', 'url', 'branding', 'debug_info']
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82 debug_render_redirect = {'debug_info': '_debugRenderDebugInfo'}
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83
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84 def __init__(self):
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85 self.version = APP_VERSION
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86 self.url = 'http://bolt80.com/piecrust/'
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87 self.branding = 'Baked with <em><a href="%s">PieCrust</a> %s</em>.' % (
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88 'http://bolt80.com/piecrust/', APP_VERSION)
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89 self._page = None
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90 self._data = None
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91
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92 @property
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93 def debug_info(self):
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94 if self._page is not None and self._data is not None:
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95 return build_debug_info(self._page, self._data)
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96 return ''
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97
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98 def _enableDebugInfo(self, page, data):
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99 self._page = page
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100 self._data = data
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101
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102 def _debugRenderDebugInfo(self):
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103 return "The very thing you're looking at!"
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104
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105
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106 re_endpoint_sep = re.compile(r'[\/\.]')
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107
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108
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109 def build_site_data(page):
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110 app = page.app
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111 data = dict(app.config.get())
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112 for source in app.sources:
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113 endpoint_bits = re_endpoint_sep.split(source.data_endpoint)
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114 endpoint = data
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115 for e in endpoint_bits[:-1]:
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116 if e not in endpoint:
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117 endpoint[e] = {}
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118 endpoint = endpoint[e]
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119 user_data = endpoint.get(endpoint_bits[-1])
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120 provider = source.buildDataProvider(page, user_data)
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121 if endpoint_bits[-1] in endpoint:
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122 provider.user_data = endpoint[endpoint_bits[-1]]
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123 endpoint[endpoint_bits[-1]] = provider
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124 return data
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125
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126
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127 def get_default_pagination_source(page):
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128 app = page.app
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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129 source_name = page.config.get('source') or page.config.get('blog')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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130 if source_name is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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131 blog_names = app.config.get('site/blogs')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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132 if blog_names is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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133 source_name = blog_names[0]
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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134 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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135 source_name = app.sources[0].name
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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136 source = app.getSource(source_name)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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137 return source
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
138