58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Seamless Polymorphic Inheritance for Django Models
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Copyright:
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This code and affiliated files are (C) by Bert Constantin and individual contributors.
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Please see LICENSE and AUTHORS for more information.
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"""
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from polymorphic_model import PolymorphicModel
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from manager import PolymorphicManager
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from query import PolymorphicQuerySet
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from query_translate import translate_polymorphic_Q_object
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from showfields import ShowFieldContent, ShowFieldType, ShowFieldTypeAndContent
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from showfields import ShowFields, ShowFieldTypes, ShowFieldsAndTypes # import old names for compatibility
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VERSION = (1, 0, 0, 'beta')
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def get_version():
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version = '%s.%s' % VERSION[0:2]
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if VERSION[2]:
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version += '.%s' % VERSION[2]
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if VERSION[3]:
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version += ' %s' % VERSION[3]
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return version
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# Proxied models need to have it's own ContentType
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from django.contrib.contenttypes.models import ContentTypeManager
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from django.utils.encoding import smart_unicode
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def get_for_proxied_model(self, model):
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"""
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Returns the ContentType object for a given model, creating the
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ContentType if necessary. Lookups are cached so that subsequent lookups
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for the same model don't hit the database.
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"""
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opts = model._meta
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key = (opts.app_label, opts.object_name.lower())
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try:
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ct = self.__class__._cache[self.db][key]
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except KeyError:
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# Load or create the ContentType entry. The smart_unicode() is
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# needed around opts.verbose_name_raw because name_raw might be a
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# django.utils.functional.__proxy__ object.
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ct, created = self.get_or_create(
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app_label=opts.app_label,
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model=opts.object_name.lower(),
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defaults={'name': smart_unicode(opts.verbose_name_raw)},
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)
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self._add_to_cache(self.db, ct)
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return ct
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ContentTypeManager.get_for_proxied_model = get_for_proxied_model
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