mirror of
https://github.com/jazzband/django-categories.git
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55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
import re
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from django.core.urlresolvers import reverse
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from django.db import models
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from django.utils.encoding import force_unicode
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import mptt
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class CategoryTree(models.Model):
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"""
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A group of categories that are all related under one tree.
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For example: Business, Movie Genre, Music Genre
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"""
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name = models.CharField(max_length=100)
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slug = models.SlugField()
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class Meta:
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ordering = ('name',)
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def __unicode__(self):
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return self.name
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def get_absolute_url(self):
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return reverse("categories_tree", args=[self.slug])
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class Category(models.Model):
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category_tree = models.ForeignKey(CategoryTree,
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blank=False,
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null=False
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related_name="categories")
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parent = models.ForeignKey('self',
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blank=True,
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null=True,
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related_name="children",
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help_text="Leave this blank for a top-level category",
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verbose_name='Parent')
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name = models.CharField(max_length=100)
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slug = models.SlugField()
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def get_absolute_url(self):
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"""Return a path"""
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prefix = self.category_tree.get_absolute_url()
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ancestors = self.get_ancestors()
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return prefix + '/'.join([force_unicode(i.slug) for i in ancestors])
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class Meta:
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verbose_name_plural = 'categories'
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unique_together = (('parent', 'name'),)
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ordering = ('category_tree__name','parent__name','name')
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def __unicode__(self):
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ancestors = self.get_ancestors()
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return ' > '.join([force_unicode(i.name) for i in ancestors])
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mptt.register(Category, order_insertion_by=['name'])
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