Mercurial > piecrust2

annotate piecrust/data/builder.py @ 833:cb39c0dbe5f0

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Merge pull request #40 from GitHub.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 05 Feb 2017 22:42:18 -0800
parents a12ad254176e
children 71c4f43d8fc1
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1 import logging
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2 from werkzeug.utils import cached_property
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3 from piecrust.data.base import MergedMapping
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4 from piecrust.data.linker import PageLinkerData
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5 from piecrust.data.pagedata import PageData
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6 from piecrust.data.paginator import Paginator
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7 from piecrust.data.piecrustdata import PieCrustData
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8 from piecrust.data.providersdata import DataProvidersData
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9 from piecrust.routing import CompositeRouteFunction
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12 logger = logging.getLogger(__name__)
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15 class DataBuildingContext(object):
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16 def __init__(self, qualified_page, page_num=1):
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17 self.page = qualified_page
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18 self.page_num = page_num
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19 self.pagination_source = None
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20 self.pagination_filter = None
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21
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22 @property
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23 def app(self):
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24 return self.page.app
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25
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26 @cached_property
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27 def uri(self):
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28 return self.page.getUri(self.page_num)
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31 def build_page_data(ctx):
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32 app = ctx.app
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33 page = ctx.page
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34 pgn_source = ctx.pagination_source or get_default_pagination_source(page)
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35 first_uri = ctx.page.getUri(1)
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37 pc_data = PieCrustData()
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38 config_data = PageData(page, ctx)
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39 paginator = Paginator(page, pgn_source,
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40 page_num=ctx.page_num,
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41 pgn_filter=ctx.pagination_filter)
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42 assetor = page.source.buildAssetor(page, first_uri)
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43 linker = PageLinkerData(page.source, page.rel_path)
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44 data = {
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45 'piecrust': pc_data,
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46 'page': config_data,
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47 'assets': assetor,
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48 'pagination': paginator,
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49 'family': linker
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50 }
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51
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52 for route in app.routes:
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53 name = route.func_name
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54 func = data.get(name)
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55 if func is None:
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56 func = CompositeRouteFunction()
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57 func.addFunc(route)
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58 data[name] = func
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59 elif isinstance(func, CompositeRouteFunction):
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60 func.addFunc(route)
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61 else:
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62 raise Exception("Route function '%s' collides with an "
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63 "existing function or template data." %
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64 name)
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65
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66 #TODO: handle slugified taxonomy terms.
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67
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68 site_data = app.config.getAll()
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69 providers_data = DataProvidersData(page)
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70 data = MergedMapping([data, providers_data, site_data])
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72 # Do this at the end because we want all the data to be ready to be
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73 # displayed in the debugger window.
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74 if (app.config.get('site/show_debug_info') and
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75 not app.config.get('baker/is_baking')):
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76 pc_data.enableDebugInfo(page)
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78 return data
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81 def build_layout_data(page, page_data, contents):
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82 for name, txt in contents.items():
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83 if name in page_data:
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84 logger.warning("Content segment '%s' will hide existing data." %
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85 name)
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86 page_data._prependMapping(contents)
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89 def get_default_pagination_source(page):
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90 app = page.app
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91 source_name = page.config.get('source') or page.config.get('blog')
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92 if source_name is None:
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93 source_name = app.config.get('site/default_pagination_source')
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94 if source_name is None:
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95 blog_names = app.config.get('site/blogs')
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96 if blog_names is not None:
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97 source_name = blog_names[0]
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98 else:
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99 source_name = app.sources[0].name
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100 source = app.getSource(source_name)
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101 return source
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102