Migrated custom_pk doctests. Thanks to Alex Gaynor.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13776 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee
parent
b26f1d4664
commit
1d50f6af99
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@ -3,6 +3,7 @@ import string
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from django.db import models
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from django.db import models
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class MyWrapper(object):
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class MyWrapper(object):
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def __init__(self, value):
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def __init__(self, value):
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self.value = value
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self.value = value
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@ -40,138 +40,3 @@ class Bar(models.Model):
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class Foo(models.Model):
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class Foo(models.Model):
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bar = models.ForeignKey(Bar)
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bar = models.ForeignKey(Bar)
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__test__ = {'API_TESTS':"""
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>>> dan = Employee(employee_code=123, first_name='Dan', last_name='Jones')
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>>> dan.save()
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>>> Employee.objects.all()
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[<Employee: Dan Jones>]
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>>> fran = Employee(employee_code=456, first_name='Fran', last_name='Bones')
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>>> fran.save()
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>>> Employee.objects.all()
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[<Employee: Fran Bones>, <Employee: Dan Jones>]
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>>> Employee.objects.get(pk=123)
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<Employee: Dan Jones>
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>>> Employee.objects.get(pk=456)
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<Employee: Fran Bones>
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>>> Employee.objects.get(pk=42)
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Traceback (most recent call last):
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...
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DoesNotExist: Employee matching query does not exist.
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# Use the name of the primary key, rather than pk.
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>>> Employee.objects.get(employee_code__exact=123)
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<Employee: Dan Jones>
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# pk can be used as a substitute for the primary key.
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>>> Employee.objects.filter(pk__in=[123, 456])
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[<Employee: Fran Bones>, <Employee: Dan Jones>]
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# The primary key can be accessed via the pk property on the model.
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>>> e = Employee.objects.get(pk=123)
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>>> e.pk
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123
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# Or we can use the real attribute name for the primary key:
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>>> e.employee_code
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123
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# Fran got married and changed her last name.
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>>> fran = Employee.objects.get(pk=456)
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>>> fran.last_name = 'Jones'
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>>> fran.save()
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>>> Employee.objects.filter(last_name__exact='Jones')
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[<Employee: Dan Jones>, <Employee: Fran Jones>]
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>>> emps = Employee.objects.in_bulk([123, 456])
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>>> emps[123]
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<Employee: Dan Jones>
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>>> b = Business(name='Sears')
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>>> b.save()
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>>> b.employees.add(dan, fran)
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>>> b.employees.all()
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[<Employee: Dan Jones>, <Employee: Fran Jones>]
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>>> fran.business_set.all()
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[<Business: Sears>]
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>>> Business.objects.in_bulk(['Sears'])
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{u'Sears': <Business: Sears>}
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>>> Business.objects.filter(name__exact='Sears')
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[<Business: Sears>]
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>>> Business.objects.filter(pk='Sears')
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[<Business: Sears>]
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# Queries across tables, involving primary key
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>>> Employee.objects.filter(business__name__exact='Sears')
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[<Employee: Dan Jones>, <Employee: Fran Jones>]
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>>> Employee.objects.filter(business__pk='Sears')
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[<Employee: Dan Jones>, <Employee: Fran Jones>]
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>>> Business.objects.filter(employees__employee_code__exact=123)
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[<Business: Sears>]
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>>> Business.objects.filter(employees__pk=123)
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[<Business: Sears>]
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>>> Business.objects.filter(employees__first_name__startswith='Fran')
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[<Business: Sears>]
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# Primary key may be unicode string
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>>> bus = Business(name=u'jaźń')
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>>> bus.save()
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# The primary key must also obviously be unique, so trying to create a new
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# object with the same primary key will fail.
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>>> try:
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... sid = transaction.savepoint()
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... Employee.objects.create(employee_code=123, first_name='Fred', last_name='Jones')
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... transaction.savepoint_commit(sid)
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... except Exception, e:
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... if isinstance(e, IntegrityError):
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... transaction.savepoint_rollback(sid)
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... print "Pass"
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... else:
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... print "Fail with %s" % type(e)
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Pass
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# Regression for #10785 -- Custom fields can be used for primary keys.
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>>> new_bar = Bar.objects.create()
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>>> new_foo = Foo.objects.create(bar=new_bar)
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# FIXME: This still doesn't work, but will require some changes in
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# get_db_prep_lookup to fix it.
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# >>> f = Foo.objects.get(bar=new_bar.pk)
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# >>> f == new_foo
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# True
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# >>> f.bar == new_bar
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# True
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>>> f = Foo.objects.get(bar=new_bar)
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>>> f == new_foo
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True
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>>> f.bar == new_bar
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True
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"""}
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# SQLite lets objects be saved with an empty primary key, even though an
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# integer is expected. So we can't check for an error being raised in that case
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# for SQLite. Remove it from the suite for this next bit.
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if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] != 'django.db.backends.sqlite3':
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__test__["API_TESTS"] += """
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# The primary key must be specified, so an error is raised if you try to create
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# an object without it.
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>>> try:
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... sid = transaction.savepoint()
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... Employee.objects.create(first_name='Tom', last_name='Smith')
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... print 'hello'
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... transaction.savepoint_commit(sid)
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... print 'hello2'
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... except Exception, e:
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... if isinstance(e, IntegrityError):
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... transaction.savepoint_rollback(sid)
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... print "Pass"
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... else:
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... print "Fail with %s" % type(e)
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Pass
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"""
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@ -0,0 +1,183 @@
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# -*- coding: utf-8 -*-
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from django.conf import settings
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from django.db import DEFAULT_DB_ALIAS, transaction, IntegrityError
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from django.test import TestCase
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from models import Employee, Business, Bar, Foo
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class CustomPKTests(TestCase):
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def test_custom_pk(self):
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dan = Employee.objects.create(
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employee_code=123, first_name="Dan", last_name="Jones"
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)
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self.assertQuerysetEqual(
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Employee.objects.all(), [
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"Dan Jones",
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],
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unicode
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)
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fran = Employee.objects.create(
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employee_code=456, first_name="Fran", last_name="Bones"
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)
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self.assertQuerysetEqual(
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Employee.objects.all(), [
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"Fran Bones",
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"Dan Jones",
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],
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unicode
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)
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self.assertEqual(Employee.objects.get(pk=123), dan)
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self.assertEqual(Employee.objects.get(pk=456), fran)
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self.assertRaises(Employee.DoesNotExist,
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lambda: Employee.objects.get(pk=42)
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)
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# Use the name of the primary key, rather than pk.
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self.assertEqual(Employee.objects.get(employee_code=123), dan)
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# pk can be used as a substitute for the primary key.
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self.assertQuerysetEqual(
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Employee.objects.filter(pk__in=[123, 456]), [
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"Fran Bones",
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"Dan Jones",
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],
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unicode
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)
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# The primary key can be accessed via the pk property on the model.
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e = Employee.objects.get(pk=123)
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self.assertEqual(e.pk, 123)
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# Or we can use the real attribute name for the primary key:
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self.assertEqual(e.employee_code, 123)
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# Fran got married and changed her last name.
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fran = Employee.objects.get(pk=456)
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fran.last_name = "Jones"
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fran.save()
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self.assertQuerysetEqual(
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Employee.objects.filter(last_name="Jones"), [
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"Dan Jones",
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"Fran Jones",
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],
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unicode
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)
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emps = Employee.objects.in_bulk([123, 456])
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self.assertEqual(emps[123], dan)
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b = Business.objects.create(name="Sears")
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b.employees.add(dan, fran)
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self.assertQuerysetEqual(
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b.employees.all(), [
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"Dan Jones",
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"Fran Jones",
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],
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unicode
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)
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self.assertQuerysetEqual(
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fran.business_set.all(), [
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"Sears",
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],
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lambda b: b.name
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)
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self.assertEqual(Business.objects.in_bulk(["Sears"]), {
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"Sears": b,
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})
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self.assertQuerysetEqual(
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Business.objects.filter(name="Sears"), [
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"Sears"
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],
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lambda b: b.name
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)
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self.assertQuerysetEqual(
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Business.objects.filter(pk="Sears"), [
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"Sears",
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],
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lambda b: b.name
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)
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# Queries across tables, involving primary key
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self.assertQuerysetEqual(
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Employee.objects.filter(business__name="Sears"), [
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"Dan Jones",
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"Fran Jones",
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],
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unicode,
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)
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self.assertQuerysetEqual(
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Employee.objects.filter(business__pk="Sears"), [
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"Dan Jones",
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"Fran Jones",
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],
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unicode,
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__employee_code=123), [
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"Sears",
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],
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lambda b: b.name
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__pk=123), [
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"Sears",
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],
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lambda b: b.name,
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__first_name__startswith="Fran"), [
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"Sears",
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],
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lambda b: b.name
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)
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def test_unicode_pk(self):
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# Primary key may be unicode string
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bus = Business.objects.create(name=u'jaźń')
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def test_unique_pk(self):
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# The primary key must also obviously be unique, so trying to create a
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# new object with the same primary key will fail.
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e = Employee.objects.create(
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employee_code=123, first_name="Frank", last_name="Jones"
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)
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sid = transaction.savepoint()
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self.assertRaises(IntegrityError,
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Employee.objects.create, employee_code=123, first_name="Fred", last_name="Jones"
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)
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transaction.savepoint_rollback(sid)
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def test_custom_field_pk(self):
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# Regression for #10785 -- Custom fields can be used for primary keys.
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new_bar = Bar.objects.create()
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new_foo = Foo.objects.create(bar=new_bar)
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# FIXME: This still doesn't work, but will require some changes in
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# get_db_prep_lookup to fix it.
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# f = Foo.objects.get(bar=new_bar.pk)
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# self.assertEqual(f, new_foo)
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# self.assertEqual(f.bar, new_bar)
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f = Foo.objects.get(bar=new_bar)
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self.assertEqual(f, new_foo),
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self.assertEqual(f.bar, new_bar)
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# SQLite lets objects be saved with an empty primary key, even though an
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# integer is expected. So we can't check for an error being raised in that
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# case for SQLite. Remove it from the suite for this next bit.
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if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] != 'django.db.backends.sqlite3':
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def test_required_pk(self):
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# The primary key must be specified, so an error is raised if you
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# try to create an object without it.
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sid = transaction.savepoint()
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self.assertRaises(IntegrityError,
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Employee.objects.create, first_name="Tom", last_name="Smith"
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)
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transaction.savepoint_rollback(sid)
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