mirror of
https://github.com/jazzband/django-admin-sortable.git
synced 2026-03-21 00:10:29 +00:00
8365043e0e
Fixed jQueryUI highlight method call in success handler of ajax function when dragging stops. Fixed missing script resource for jquery.effects.core.js
43 lines
1.5 KiB
Python
Executable file
43 lines
1.5 KiB
Python
Executable file
from django.contrib.contenttypes.models import ContentType
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from django.db import models
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class Sortable(models.Model):
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"""
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Unfortunately, Django doesn't support using more than one AutoField in a model
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or this class could be simplified.
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`is_sortable` determines whether or not the Model is sortable by determining
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if the last value of `order` is greater than the default of 1, which should be
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present if there is only one object.
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`model_type_id` returns the ContentType.id for the Model that inherits Sortable
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`save` the override of save increments the last/highest value of order by 1
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"""
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order = models.PositiveIntegerField(editable=False, default=1, db_index=True)
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class Meta:
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abstract = True
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ordering = ['order']
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@classmethod
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def is_sortable(cls):
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try:
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return True if cls.objects.order_by('-order')[:1][0].order > 1 else False
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except IndexError:
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return False
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@classmethod
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def model_type_id(cls):
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return ContentType.objects.get_for_model(cls).id
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def save(self, *args, **kwargs):
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if not self.id:
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try:
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#increment the order field by adding one to the last value of order
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self.order = self.__class__.objects.order_by('-order')[:1][0].order + 1
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except IndexError:
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#order defaults to 1
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pass
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super(Sortable, self).save(*args, **kwargs)
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