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54 | from django.db import models
import mptt
class Category(models.Model):
name = models.CharField(max_length=50)
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
def __unicode__(self):
return self.name
def delete(self):
super(Category, self).delete()
class Genre(models.Model):
name = models.CharField(max_length=50, unique=True)
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
def __unicode__(self):
return self.name
class Insert(models.Model):
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
class MultiOrder(models.Model):
name = models.CharField(max_length=50)
size = models.PositiveIntegerField()
date = models.DateField()
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
def __unicode__(self):
return self.name
class Node(models.Model):
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
class OrderedInsertion(models.Model):
name = models.CharField(max_length=50)
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
def __unicode__(self):
return self.name
class Tree(models.Model):
parent = models.ForeignKey('self', null=True, blank=True, related_name='children')
mptt.register(Category)
mptt.register(Genre)
mptt.register(Insert)
mptt.register(MultiOrder, order_insertion_by=['name', 'size', 'date'])
mptt.register(Node, left_attr='does', right_attr='zis', level_attr='madness',
tree_id_attr='work')
mptt.register(OrderedInsertion, order_insertion_by=['name'])
mptt.register(Tree)
|
