74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
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from django.db.models import get_model
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from regluit.core import cc
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class BaseFacet(object):
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facet_name = 'all'
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outer_facet = None
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model = get_model('core', 'Work')
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def __init__(self, outer_facet):
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if outer_facet:
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self.outer_facet = outer_facet
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def _get_query_set(self):
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if self.outer_facet:
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return self.outer_facet.get_query_set()
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else:
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return self.model.objects.filter(editions__ebooks__isnull=False)
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def get_query_set(self):
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return self._get_query_set()
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def get_facet_path(self):
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if self.outer_facet:
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return self.outer_facet.get_facet_path() + self.facet_name + '/'
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else:
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return self.facet_name + '/'
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class FacetGroup(object):
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pass
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class NamedFacet(BaseFacet):
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def __init__(self, outer_facet):
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super(NamedFacet, self).__init__( outer_facet )
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self.set_name()
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class FormatFacetGroup(FacetGroup):
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facets = ['pdf', 'epub', 'mobi']
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def has_facet(self, facet_name):
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return facet_name in self.facets
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def get_facet_class(self, facet_name):
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class FormatFacet(NamedFacet):
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def set_name(self):
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self.facet_name=facet_name
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def get_query_set(self):
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return self._get_query_set().filter(editions__ebooks__format=self.facet_name)
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return FormatFacet
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class LicenseFacetGroup(FacetGroup):
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licenses = cc.LICENSE_LIST_ALL
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facets = cc.FACET_LIST
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def has_facet(self, facet_name):
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return facet_name in self.facets
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def get_facet_class(self, facet_name):
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class LicenseFacet(NamedFacet):
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def set_name(self):
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self.facet_name=facet_name
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def get_query_set(self):
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return self._get_query_set().filter(editions__ebooks__rights=cc.licence_value(self.facet_name))
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return LicenseFacet
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facet_groups = [ FormatFacetGroup() , LicenseFacetGroup() ]
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def get_facet(facet_name):
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for facet_group in facet_groups:
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if facet_group.has_facet(facet_name):
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return facet_group.get_facet_class(facet_name)
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return BaseFacet
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