diff -r 2e0b0af889be -r a04b1e4126c4 thirdparty/google_appengine/lib/django/tests/modeltests/basic/models.py --- a/thirdparty/google_appengine/lib/django/tests/modeltests/basic/models.py Sun Sep 06 23:31:53 2009 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,367 +0,0 @@ -""" -1. Bare-bones model - -This is a basic model with only two non-primary-key fields. -""" - -from django.db import models - -class Article(models.Model): - headline = models.CharField(maxlength=100, default='Default headline') - pub_date = models.DateTimeField() - - class Meta: - ordering = ('pub_date','headline') - - def __str__(self): - return self.headline - -__test__ = {'API_TESTS': """ -# No articles are in the system yet. ->>> Article.objects.all() -[] - -# Create an Article. ->>> from datetime import datetime ->>> a = Article(id=None, headline='Area man programs in Python', pub_date=datetime(2005, 7, 28)) - -# Save it into the database. You have to call save() explicitly. ->>> a.save() - -# Now it has an ID. Note it's a long integer, as designated by the trailing "L". ->>> a.id -1L - -# Access database columns via Python attributes. ->>> a.headline -'Area man programs in Python' ->>> a.pub_date -datetime.datetime(2005, 7, 28, 0, 0) - -# Change values by changing the attributes, then calling save(). ->>> a.headline = 'Area woman programs in Python' ->>> a.save() - -# Article.objects.all() returns all the articles in the database. ->>> Article.objects.all() -[] - -# Django provides a rich database lookup API. ->>> Article.objects.get(id__exact=1) - ->>> Article.objects.get(headline__startswith='Area woman') - ->>> Article.objects.get(pub_date__year=2005) - ->>> Article.objects.get(pub_date__year=2005, pub_date__month=7) - ->>> Article.objects.get(pub_date__year=2005, pub_date__month=7, pub_date__day=28) - - -# The "__exact" lookup type can be omitted, as a shortcut. ->>> Article.objects.get(id=1) - ->>> Article.objects.get(headline='Area woman programs in Python') - - ->>> Article.objects.filter(pub_date__year=2005) -[] ->>> Article.objects.filter(pub_date__year=2004) -[] ->>> Article.objects.filter(pub_date__year=2005, pub_date__month=7) -[] - -# Django raises an Article.DoesNotExist exception for get() if the parameters -# don't match any object. ->>> Article.objects.get(id__exact=2) -Traceback (most recent call last): - ... -DoesNotExist: Article matching query does not exist. - ->>> Article.objects.get(pub_date__year=2005, pub_date__month=8) -Traceback (most recent call last): - ... -DoesNotExist: Article matching query does not exist. - -# Lookup by a primary key is the most common case, so Django provides a -# shortcut for primary-key exact lookups. -# The following is identical to articles.get(id=1). ->>> Article.objects.get(pk=1) - - -# pk can be used as a shortcut for the primary key name in any query ->>> Article.objects.filter(pk__in=[1]) -[] - -# Model instances of the same type and same ID are considered equal. ->>> a = Article.objects.get(pk=1) ->>> b = Article.objects.get(pk=1) ->>> a == b -True - -# You can initialize a model instance using positional arguments, which should -# match the field order as defined in the model. ->>> a2 = Article(None, 'Second article', datetime(2005, 7, 29)) ->>> a2.save() ->>> a2.id -2L ->>> a2.headline -'Second article' ->>> a2.pub_date -datetime.datetime(2005, 7, 29, 0, 0) - -# ...or, you can use keyword arguments. ->>> a3 = Article(id=None, headline='Third article', pub_date=datetime(2005, 7, 30)) ->>> a3.save() ->>> a3.id -3L ->>> a3.headline -'Third article' ->>> a3.pub_date -datetime.datetime(2005, 7, 30, 0, 0) - -# You can also mix and match position and keyword arguments, but be sure not to -# duplicate field information. ->>> a4 = Article(None, 'Fourth article', pub_date=datetime(2005, 7, 31)) ->>> a4.save() ->>> a4.headline -'Fourth article' - -# Don't use invalid keyword arguments. ->>> a5 = Article(id=None, headline='Invalid', pub_date=datetime(2005, 7, 31), foo='bar') -Traceback (most recent call last): - ... -TypeError: 'foo' is an invalid keyword argument for this function - -# You can leave off the value for an AutoField when creating an object, because -# it'll get filled in automatically when you save(). ->>> a5 = Article(headline='Article 6', pub_date=datetime(2005, 7, 31)) ->>> a5.save() ->>> a5.id -5L ->>> a5.headline -'Article 6' - -# If you leave off a field with "default" set, Django will use the default. ->>> a6 = Article(pub_date=datetime(2005, 7, 31)) ->>> a6.save() ->>> a6.headline -'Default headline' - -# For DateTimeFields, Django saves as much precision (in seconds) as you -# give it. ->>> a7 = Article(headline='Article 7', pub_date=datetime(2005, 7, 31, 12, 30)) ->>> a7.save() ->>> Article.objects.get(id__exact=7).pub_date -datetime.datetime(2005, 7, 31, 12, 30) - ->>> a8 = Article(headline='Article 8', pub_date=datetime(2005, 7, 31, 12, 30, 45)) ->>> a8.save() ->>> Article.objects.get(id__exact=8).pub_date -datetime.datetime(2005, 7, 31, 12, 30, 45) ->>> a8.id -8L - -# Saving an object again doesn't create a new object -- it just saves the old one. ->>> a8.save() ->>> a8.id -8L ->>> a8.headline = 'Updated article 8' ->>> a8.save() ->>> a8.id -8L - ->>> a7 == a8 -False ->>> a8 == Article.objects.get(id__exact=8) -True ->>> a7 != a8 -True ->>> Article.objects.get(id__exact=8) != Article.objects.get(id__exact=7) -True ->>> Article.objects.get(id__exact=8) == Article.objects.get(id__exact=7) -False - -# dates() returns a list of available dates of the given scope for the given field. ->>> Article.objects.dates('pub_date', 'year') -[datetime.datetime(2005, 1, 1, 0, 0)] ->>> Article.objects.dates('pub_date', 'month') -[datetime.datetime(2005, 7, 1, 0, 0)] ->>> Article.objects.dates('pub_date', 'day') -[datetime.datetime(2005, 7, 28, 0, 0), datetime.datetime(2005, 7, 29, 0, 0), datetime.datetime(2005, 7, 30, 0, 0), datetime.datetime(2005, 7, 31, 0, 0)] ->>> Article.objects.dates('pub_date', 'day', order='ASC') -[datetime.datetime(2005, 7, 28, 0, 0), datetime.datetime(2005, 7, 29, 0, 0), datetime.datetime(2005, 7, 30, 0, 0), datetime.datetime(2005, 7, 31, 0, 0)] ->>> Article.objects.dates('pub_date', 'day', order='DESC') -[datetime.datetime(2005, 7, 31, 0, 0), datetime.datetime(2005, 7, 30, 0, 0), datetime.datetime(2005, 7, 29, 0, 0), datetime.datetime(2005, 7, 28, 0, 0)] - -# dates() requires valid arguments. - ->>> Article.objects.dates() -Traceback (most recent call last): - ... -TypeError: dates() takes at least 3 arguments (1 given) - ->>> Article.objects.dates('invalid_field', 'year') -Traceback (most recent call last): - ... -FieldDoesNotExist: Article has no field named 'invalid_field' - ->>> Article.objects.dates('pub_date', 'bad_kind') -Traceback (most recent call last): - ... -AssertionError: 'kind' must be one of 'year', 'month' or 'day'. - ->>> Article.objects.dates('pub_date', 'year', order='bad order') -Traceback (most recent call last): - ... -AssertionError: 'order' must be either 'ASC' or 'DESC'. - -# Use iterator() with dates() to return a generator that lazily requests each -# result one at a time, to save memory. ->>> for a in Article.objects.dates('pub_date', 'day', order='DESC').iterator(): -... print repr(a) -datetime.datetime(2005, 7, 31, 0, 0) -datetime.datetime(2005, 7, 30, 0, 0) -datetime.datetime(2005, 7, 29, 0, 0) -datetime.datetime(2005, 7, 28, 0, 0) - -# You can combine queries with & and |. ->>> s1 = Article.objects.filter(id__exact=1) ->>> s2 = Article.objects.filter(id__exact=2) ->>> s1 | s2 -[, ] ->>> s1 & s2 -[] - -# You can get the number of objects like this: ->>> len(Article.objects.filter(id__exact=1)) -1 - -# You can get items using index and slice notation. ->>> Article.objects.all()[0] - ->>> Article.objects.all()[1:3] -[, ] ->>> s3 = Article.objects.filter(id__exact=3) ->>> (s1 | s2 | s3)[::2] -[, ] - -# Slices (without step) are lazy: ->>> Article.objects.all()[0:5].filter() -[, , , , ] - -# Slicing again works: ->>> Article.objects.all()[0:5][0:2] -[, ] ->>> Article.objects.all()[0:5][:2] -[, ] ->>> Article.objects.all()[0:5][4:] -[] ->>> Article.objects.all()[0:5][5:] -[] - -# Some more tests! ->>> Article.objects.all()[2:][0:2] -[, ] ->>> Article.objects.all()[2:][:2] -[, ] ->>> Article.objects.all()[2:][2:3] -[] - -# Note that you can't use 'offset' without 'limit' (on some dbs), so this doesn't work: ->>> Article.objects.all()[2:] -Traceback (most recent call last): - ... -AssertionError: 'offset' is not allowed without 'limit' - -# Also, once you have sliced you can't filter, re-order or combine ->>> Article.objects.all()[0:5].filter(id=1) -Traceback (most recent call last): - ... -AssertionError: Cannot filter a query once a slice has been taken. - ->>> Article.objects.all()[0:5].order_by('id') -Traceback (most recent call last): - ... -AssertionError: Cannot reorder a query once a slice has been taken. - ->>> Article.objects.all()[0:1] & Article.objects.all()[4:5] -Traceback (most recent call last): - ... -AssertionError: Cannot combine queries once a slice has been taken. - -# Negative slices are not supported, due to database constraints. -# (hint: inverting your ordering might do what you need). ->>> Article.objects.all()[-1] -Traceback (most recent call last): - ... -AssertionError: Negative indexing is not supported. ->>> Article.objects.all()[0:-5] -Traceback (most recent call last): - ... -AssertionError: Negative indexing is not supported. - -# An Article instance doesn't have access to the "objects" attribute. -# That's only available on the class. ->>> a7.objects.all() -Traceback (most recent call last): - ... -AttributeError: Manager isn't accessible via Article instances - ->>> a7.objects -Traceback (most recent call last): - ... -AttributeError: Manager isn't accessible via Article instances - -# Bulk delete test: How many objects before and after the delete? ->>> Article.objects.all() -[, , , , , , , ] ->>> Article.objects.filter(id__lte=4).delete() ->>> Article.objects.all() -[, , , ] -"""} - -from django.conf import settings - -building_docs = getattr(settings, 'BUILDING_DOCS', False) - -if building_docs or settings.DATABASE_ENGINE == 'postgresql': - __test__['API_TESTS'] += """ -# In PostgreSQL, microsecond-level precision is available. ->>> a9 = Article(headline='Article 9', pub_date=datetime(2005, 7, 31, 12, 30, 45, 180)) ->>> a9.save() ->>> Article.objects.get(id__exact=9).pub_date -datetime.datetime(2005, 7, 31, 12, 30, 45, 180) -""" - -if building_docs or settings.DATABASE_ENGINE == 'mysql': - __test__['API_TESTS'] += """ -# In MySQL, microsecond-level precision isn't available. You'll lose -# microsecond-level precision once the data is saved. ->>> a9 = Article(headline='Article 9', pub_date=datetime(2005, 7, 31, 12, 30, 45, 180)) ->>> a9.save() ->>> Article.objects.get(id__exact=9).pub_date -datetime.datetime(2005, 7, 31, 12, 30, 45) -""" - -__test__['API_TESTS'] += """ - -# You can manually specify the primary key when creating a new object. ->>> a101 = Article(id=101, headline='Article 101', pub_date=datetime(2005, 7, 31, 12, 30, 45)) ->>> a101.save() ->>> a101 = Article.objects.get(pk=101) ->>> a101.headline -'Article 101' - -# You can create saved objects in a single step ->>> a10 = Article.objects.create(headline="Article 10", pub_date=datetime(2005, 7, 31, 12, 30, 45)) ->>> Article.objects.get(headline="Article 10") - - -# Edge-case test: A year lookup should retrieve all objects in the given -year, including Jan. 1 and Dec. 31. ->>> a11 = Article.objects.create(headline='Article 11', pub_date=datetime(2008, 1, 1)) ->>> a12 = Article.objects.create(headline='Article 12', pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999)) ->>> Article.objects.filter(pub_date__year=2008) -[, ] -"""