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54 lines
1.5 KiB
54 lines
1.5 KiB
""" |
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18. Using SQL reserved names |
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Need to use a reserved SQL name as a column name or table name? Need to include |
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a hyphen in a column or table name? No problem. Django quotes names |
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appropriately behind the scenes, so your database won't complain about |
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reserved-name usage. |
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""" |
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from django.db import models |
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class Thing(models.Model): |
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when = models.CharField(max_length=1, primary_key=True) |
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join = models.CharField(max_length=1) |
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like = models.CharField(max_length=1) |
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drop = models.CharField(max_length=1) |
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alter = models.CharField(max_length=1) |
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having = models.CharField(max_length=1) |
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where = models.DateField(max_length=1) |
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has_hyphen = models.CharField(max_length=1, db_column='has-hyphen') |
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class Meta: |
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db_table = 'select' |
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def __unicode__(self): |
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return self.when |
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__test__ = {'API_TESTS':""" |
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>>> import datetime |
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>>> day1 = datetime.date(2005, 1, 1) |
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>>> day2 = datetime.date(2006, 2, 2) |
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>>> t = Thing(when='a', join='b', like='c', drop='d', alter='e', having='f', where=day1, has_hyphen='h') |
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>>> t.save() |
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>>> print t.when |
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a |
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>>> u = Thing(when='h', join='i', like='j', drop='k', alter='l', having='m', where=day2) |
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>>> u.save() |
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>>> print u.when |
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h |
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>>> Thing.objects.order_by('when') |
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[<Thing: a>, <Thing: h>] |
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>>> v = Thing.objects.get(pk='a') |
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>>> print v.join |
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b |
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>>> print v.where |
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2005-01-01 |
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>>> Thing.objects.dates('where', 'year') |
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[datetime.datetime(2005, 1, 1, 0, 0), datetime.datetime(2006, 1, 1, 0, 0)] |
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>>> Thing.objects.filter(where__month=1) |
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[<Thing: a>] |
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"""}
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