diff -r 2e0b0af889be -r a04b1e4126c4 thirdparty/google_appengine/lib/django/tests/modeltests/or_lookups/models.py --- a/thirdparty/google_appengine/lib/django/tests/modeltests/or_lookups/models.py Sun Sep 06 23:31:53 2009 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,119 +0,0 @@ -""" -19. OR lookups - -To perform an OR lookup, or a lookup that combines ANDs and ORs, -combine QuerySet objects using & and | operators. - -Alternatively, use positional arguments, and pass one or more expressions -of clauses using the variable ``django.db.models.Q`` (or any object with -a get_sql method). - - -""" - -from django.db import models - -class Article(models.Model): - headline = models.CharField(maxlength=50) - pub_date = models.DateTimeField() - - class Meta: - ordering = ('pub_date',) - - def __str__(self): - return self.headline - -__test__ = {'API_TESTS':""" ->>> from datetime import datetime ->>> from django.db.models import Q - ->>> a1 = Article(headline='Hello', pub_date=datetime(2005, 11, 27)) ->>> a1.save() - ->>> a2 = Article(headline='Goodbye', pub_date=datetime(2005, 11, 28)) ->>> a2.save() - ->>> a3 = Article(headline='Hello and goodbye', pub_date=datetime(2005, 11, 29)) ->>> a3.save() - ->>> Article.objects.filter(headline__startswith='Hello') | Article.objects.filter(headline__startswith='Goodbye') -[, , ] - ->>> Article.objects.filter(Q(headline__startswith='Hello') | Q(headline__startswith='Goodbye')) -[, , ] - ->>> Article.objects.filter(Q(headline__startswith='Hello') & Q(headline__startswith='Goodbye')) -[] - -# You can shorten this syntax with code like the following, -# which is especially useful if building the query in stages: ->>> articles = Article.objects.all() ->>> articles.filter(headline__startswith='Hello') & articles.filter(headline__startswith='Goodbye') -[] - ->>> articles.filter(headline__startswith='Hello') & articles.filter(headline__contains='bye') -[] - ->>> Article.objects.filter(Q(headline__contains='bye'), headline__startswith='Hello') -[] - ->>> Article.objects.filter(headline__contains='Hello') | Article.objects.filter(headline__contains='bye') -[, , ] - ->>> Article.objects.filter(headline__iexact='Hello') | Article.objects.filter(headline__contains='ood') -[, , ] - ->>> Article.objects.filter(Q(pk=1) | Q(pk=2)) -[, ] - ->>> Article.objects.filter(Q(pk=1) | Q(pk=2) | Q(pk=3)) -[, , ] - -# You could also use "in" to accomplish the same as above. ->>> Article.objects.filter(pk__in=[1,2,3]) -[, , ] - ->>> Article.objects.filter(pk__in=[1,2,3,4]) -[, , ] - -# Passing "in" an empty list returns no results ... ->>> Article.objects.filter(pk__in=[]) -[] - -# ... but can return results if we OR it with another query. ->>> Article.objects.filter(Q(pk__in=[]) | Q(headline__icontains='goodbye')) -[, ] - -# Q arg objects are ANDed ->>> Article.objects.filter(Q(headline__startswith='Hello'), Q(headline__contains='bye')) -[] - -# Q arg AND order is irrelevant ->>> Article.objects.filter(Q(headline__contains='bye'), headline__startswith='Hello') -[] - -# Try some arg queries with operations other than get_list ->>> Article.objects.get(Q(headline__startswith='Hello'), Q(headline__contains='bye')) - - ->>> Article.objects.filter(Q(headline__startswith='Hello') | Q(headline__contains='bye')).count() -3 - ->>> list(Article.objects.filter(Q(headline__startswith='Hello'), Q(headline__contains='bye')).values()) -[{'headline': 'Hello and goodbye', 'pub_date': datetime.datetime(2005, 11, 29, 0, 0), 'id': 3}] - ->>> Article.objects.filter(Q(headline__startswith='Hello')).in_bulk([1,2]) -{1: } - -# Demonstrating exclude with a Q object ->>> Article.objects.exclude(Q(headline__startswith='Hello')) -[] - -# The 'complex_filter' method supports framework features such as -# 'limit_choices_to' which normally take a single dictionary of lookup arguments -# but need to support arbitrary queries via Q objects too. ->>> Article.objects.complex_filter({'pk': 1}) -[] ->>> Article.objects.complex_filter(Q(pk=1) | Q(pk=2)) -[, ] -"""}