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b3b71a0922
loading/saving interactions with the databases into django.db.backend. This helps external db backend writers and removes a bunch of database-specific if-tests in django.db.models.fields. Great work from Leo Soto. git-svn-id: http://code.djangoproject.com/svn/django/trunk@8131 bcc190cf-cafb-0310-a4f2-bffc1f526a37
92 lines
3.1 KiB
Python
92 lines
3.1 KiB
Python
# coding: utf-8
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from django.db import models
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CHOICES = (
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(1, 'first'),
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(2, 'second'),
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)
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class Article(models.Model):
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headline = models.CharField(max_length=100, default='Default headline')
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pub_date = models.DateTimeField()
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status = models.IntegerField(blank=True, null=True, choices=CHOICES)
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misc_data = models.CharField(max_length=100, blank=True)
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article_text = models.TextField()
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class Meta:
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ordering = ('pub_date','headline')
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# A utf-8 verbose name (Ångström's Articles) to test they are valid.
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verbose_name = "\xc3\x85ngstr\xc3\xb6m's Articles"
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def __unicode__(self):
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return self.headline
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class Movie(models.Model):
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#5218: Test models with non-default primary keys / AutoFields
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movie_id = models.AutoField(primary_key=True)
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name = models.CharField(max_length=60)
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class Party(models.Model):
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when = models.DateField()
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class Event(models.Model):
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when = models.DateTimeField()
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__test__ = {'API_TESTS': """
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(NOTE: Part of the regression test here is merely parsing the model
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declaration. The verbose_name, in particular, did not always work.)
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An empty choice field should return None for the display name.
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>>> from datetime import datetime
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>>> a = Article(headline="Look at me!", pub_date=datetime.now())
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>>> a.save()
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>>> a.get_status_display() is None
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True
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Empty strings should be returned as Unicode
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>>> a2 = Article.objects.get(pk=a.id)
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>>> a2.misc_data
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u''
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# TextFields can hold more than 4000 characters (this was broken in Oracle).
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>>> a3 = Article(headline="Really, really big", pub_date=datetime.now())
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>>> a3.article_text = "ABCDE" * 1000
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>>> a3.save()
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>>> a4 = Article.objects.get(pk=a3.id)
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>>> len(a4.article_text)
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5000
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# #659 regression test
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>>> import datetime
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>>> p = Party.objects.create(when = datetime.datetime(1999, 12, 31))
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>>> p = Party.objects.create(when = datetime.datetime(1998, 12, 31))
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>>> p = Party.objects.create(when = datetime.datetime(1999, 1, 1))
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>>> [p.when for p in Party.objects.filter(when__month = 2)]
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[]
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>>> [p.when for p in Party.objects.filter(when__month = 1)]
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[datetime.date(1999, 1, 1)]
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>>> [p.when for p in Party.objects.filter(when__month = 12)]
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[datetime.date(1999, 12, 31), datetime.date(1998, 12, 31)]
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>>> [p.when for p in Party.objects.filter(when__year = 1998)]
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[datetime.date(1998, 12, 31)]
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# Check that get_next_by_FIELD and get_previous_by_FIELD don't crash when we
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# have usecs values stored on the database
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#
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# [It crashed after the Field.get_db_prep_* refactor, because on most backends
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# DateTimeFields supports usecs, but DateTimeField.to_python didn't recognize
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# them. (Note that Model._get_next_or_previous_by_FIELD coerces values to
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# strings)]
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#
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>>> e = Event.objects.create(when = datetime.datetime(2000, 1, 1, 16, 0, 0))
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>>> e = Event.objects.create(when = datetime.datetime(2000, 1, 1, 6, 1, 1))
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>>> e = Event.objects.create(when = datetime.datetime(2000, 1, 1, 13, 1, 1))
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>>> e = Event.objects.create(when = datetime.datetime(2000, 1, 1, 12, 0, 20, 24))
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>>> e.get_next_by_when().when
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datetime.datetime(2000, 1, 1, 13, 1, 1)
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>>> e.get_previous_by_when().when
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datetime.datetime(2000, 1, 1, 6, 1, 1)
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"""
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}
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