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112 lines
3.8 KiB
Python
112 lines
3.8 KiB
Python
# -*- coding: UTF-8 -*-
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from django.db import models
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from django.contrib.auth.models import User as UserAlias
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from south.modelsinspector import add_introspection_rules
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on_delete_is_available = hasattr(models, "PROTECT") # models here is django.db.models
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def default_func():
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return "yays"
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# An empty case.
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class Other1(models.Model): pass
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# Another one
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class Other3(models.Model): pass
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def get_sentinel_object():
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"""
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A function to return the object to be used in place of any deleted object,
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when using the SET option for on_delete.
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"""
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# Create a new one, so we always have an instance to test with. Can't work!
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return Other3()
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# Nastiness.
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class HorribleModel(models.Model):
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"A model to test the edge cases of model parsing"
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ZERO, ONE = 0, 1
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# First, some nice fields
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name = models.CharField(max_length=255)
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short_name = models.CharField(max_length=50)
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slug = models.SlugField(unique=True)
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# A ForeignKey, to a model above, and then below
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o1 = models.ForeignKey(Other1)
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o2 = models.ForeignKey('Other2')
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if on_delete_is_available:
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o_set_null_on_delete = models.ForeignKey('Other3', null=True, on_delete=models.SET_NULL)
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o_cascade_delete = models.ForeignKey('Other3', null=True, on_delete=models.CASCADE, related_name="cascademe")
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o_protect = models.ForeignKey('Other3', null=True, on_delete=models.PROTECT, related_name="dontcascademe")
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o_default_on_delete = models.ForeignKey('Other3', null=True, default=1, on_delete=models.SET_DEFAULT, related_name="setmedefault")
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o_set_on_delete_function = models.ForeignKey('Other3', null=True, default=1, on_delete=models.SET(get_sentinel_object), related_name="setsentinel")
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o_set_on_delete_value = models.ForeignKey('Other3', null=True, default=1, on_delete=models.SET(get_sentinel_object()), related_name="setsentinelwithactualvalue") # dubious case
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o_no_action_on_delete = models.ForeignKey('Other3', null=True, default=1, on_delete=models.DO_NOTHING, related_name="deletemeatyourperil")
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# Now to something outside
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user = models.ForeignKey(UserAlias, related_name="horribles")
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# Unicode!
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code = models.CharField(max_length=25, default="↑↑↓↓←→←→BA")
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# Odd defaults!
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class_attr = models.IntegerField(default=ZERO)
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func = models.CharField(max_length=25, default=default_func)
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# Time to get nasty. Define a non-field choices, and use it
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choices = [('hello', '1'), ('world', '2')]
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choiced = models.CharField(max_length=20, choices=choices)
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class Meta:
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db_table = "my_fave"
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verbose_name = "Dr. Strangelove," + \
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"""or how I learned to stop worrying
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and love the bomb"""
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# Now spread over multiple lines
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multiline = \
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models.TextField(
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)
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# Special case.
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class Other2(models.Model):
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# Try loading a field without a newline after it (inspect hates this)
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close_but_no_cigar = models.PositiveIntegerField(primary_key=True)
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class CustomField(models.IntegerField):
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def __init__(self, an_other_model, **kwargs):
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super(CustomField, self).__init__(**kwargs)
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self.an_other_model = an_other_model
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add_introspection_rules([
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(
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[CustomField],
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[],
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{'an_other_model': ('an_other_model', {})},
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),
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], ['^south\.tests\.fakeapp\.models\.CustomField'])
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class BaseModel(models.Model):
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pass
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class SubModel(BaseModel):
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others = models.ManyToManyField(Other1)
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custom = CustomField(Other2)
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class CircularA(models.Model):
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c = models.ForeignKey('CircularC')
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class CircularB(models.Model):
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a = models.ForeignKey(CircularA)
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class CircularC(models.Model):
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b = models.ForeignKey(CircularB)
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class Recursive(models.Model):
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self = models.ForeignKey('self')
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