154 lines
3.4 KiB
Python
154 lines
3.4 KiB
Python
"""
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30. Validation
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This is an experimental feature!
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Each model instance has a validate() method that returns a dictionary of
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validation errors in the instance's fields. This method has a side effect
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of converting each field to its appropriate Python data type.
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"""
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from django.db import models
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class Person(models.Model):
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is_child = models.BooleanField()
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name = models.CharField(maxlength=20)
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birthdate = models.DateField()
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favorite_moment = models.DateTimeField()
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email = models.EmailField()
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def __str__(self):
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return self.name
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__test__ = {'API_TESTS':"""
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>>> import datetime
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>>> valid_params = {
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... 'is_child': True,
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... 'name': 'John',
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... 'birthdate': datetime.date(2000, 5, 3),
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... 'favorite_moment': datetime.datetime(2002, 4, 3, 13, 23),
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... 'email': 'john@example.com'
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... }
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>>> p = Person(**valid_params)
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>>> p.validate()
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{}
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>>> p = Person(**dict(valid_params, id='23'))
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>>> p.validate()
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{}
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>>> p.id
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23
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>>> p = Person(**dict(valid_params, id='foo'))
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>>> p.validate()
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{'id': ['This value must be an integer.']}
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>>> p = Person(**dict(valid_params, id=None))
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>>> p.validate()
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{}
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>>> repr(p.id)
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'None'
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>>> p = Person(**dict(valid_params, is_child='t'))
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>>> p.validate()
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{}
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>>> p.is_child
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True
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>>> p = Person(**dict(valid_params, is_child='f'))
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>>> p.validate()
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{}
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>>> p.is_child
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False
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>>> p = Person(**dict(valid_params, is_child=True))
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>>> p.validate()
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{}
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>>> p.is_child
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True
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>>> p = Person(**dict(valid_params, is_child=False))
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>>> p.validate()
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{}
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>>> p.is_child
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False
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>>> p = Person(**dict(valid_params, is_child='foo'))
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>>> p.validate()
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{'is_child': ['This value must be either True or False.']}
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>>> p = Person(**dict(valid_params, name=u'Jose'))
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>>> p.validate()
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{}
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>>> p.name
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u'Jose'
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>>> p = Person(**dict(valid_params, name=227))
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>>> p.validate()
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{}
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>>> p.name
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'227'
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>>> p = Person(**dict(valid_params, birthdate=datetime.date(2000, 5, 3)))
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>>> p.validate()
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{}
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>>> p.birthdate
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datetime.date(2000, 5, 3)
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>>> p = Person(**dict(valid_params, birthdate=datetime.datetime(2000, 5, 3)))
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>>> p.validate()
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{}
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>>> p.birthdate
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datetime.date(2000, 5, 3)
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>>> p = Person(**dict(valid_params, birthdate='2000-05-03'))
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>>> p.validate()
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{}
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>>> p.birthdate
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datetime.date(2000, 5, 3)
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>>> p = Person(**dict(valid_params, birthdate='2000-5-3'))
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>>> p.validate()
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{}
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>>> p.birthdate
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datetime.date(2000, 5, 3)
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>>> p = Person(**dict(valid_params, birthdate='foo'))
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>>> p.validate()
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{'birthdate': ['Enter a valid date in YYYY-MM-DD format.']}
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>>> p = Person(**dict(valid_params, favorite_moment=datetime.datetime(2002, 4, 3, 13, 23)))
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>>> p.validate()
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{}
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>>> p.favorite_moment
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datetime.datetime(2002, 4, 3, 13, 23)
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>>> p = Person(**dict(valid_params, favorite_moment=datetime.datetime(2002, 4, 3)))
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>>> p.validate()
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{}
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>>> p.favorite_moment
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datetime.datetime(2002, 4, 3, 0, 0)
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>>> p = Person(**dict(valid_params, email='john@example.com'))
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>>> p.validate()
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{}
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>>> p.email
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'john@example.com'
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>>> p = Person(**dict(valid_params, email=u'john@example.com'))
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>>> p.validate()
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{}
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>>> p.email
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u'john@example.com'
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>>> p = Person(**dict(valid_params, email=22))
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>>> p.validate()
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{'email': ['Enter a valid e-mail address.']}
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# Make sure that Date and DateTime return validation errors and don't raise Python errors.
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>>> Person(name='John Doe', is_child=True, email='abc@def.com').validate()
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{'favorite_moment': ['This field is required.'], 'birthdate': ['This field is required.']}
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"""}
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