mirror of
https://github.com/django/django.git
synced 2025-10-26 07:06:08 +00:00
d5a45d79fe
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16975 bcc190cf-cafb-0310-a4f2-bffc1f526a37
223 lines
8.3 KiB
Python
223 lines
8.3 KiB
Python
from __future__ import absolute_import
|
|
|
|
from datetime import date
|
|
|
|
from django.db.models.sql.query import InvalidQuery
|
|
from django.test import TestCase
|
|
|
|
from .models import Author, Book, Coffee, Reviewer, FriendlyAuthor
|
|
|
|
|
|
class RawQueryTests(TestCase):
|
|
fixtures = ['raw_query_books.json']
|
|
|
|
def assertSuccessfulRawQuery(self, model, query, expected_results,
|
|
expected_annotations=(), params=[], translations=None):
|
|
"""
|
|
Execute the passed query against the passed model and check the output
|
|
"""
|
|
results = list(model.objects.raw(query, params=params, translations=translations))
|
|
self.assertProcessed(model, results, expected_results, expected_annotations)
|
|
self.assertAnnotations(results, expected_annotations)
|
|
|
|
def assertProcessed(self, model, results, orig, expected_annotations=()):
|
|
"""
|
|
Compare the results of a raw query against expected results
|
|
"""
|
|
self.assertEqual(len(results), len(orig))
|
|
for index, item in enumerate(results):
|
|
orig_item = orig[index]
|
|
for annotation in expected_annotations:
|
|
setattr(orig_item, *annotation)
|
|
|
|
for field in model._meta.fields:
|
|
# Check that all values on the model are equal
|
|
self.assertEqual(getattr(item,field.attname),
|
|
getattr(orig_item,field.attname))
|
|
# This includes checking that they are the same type
|
|
self.assertEqual(type(getattr(item,field.attname)),
|
|
type(getattr(orig_item,field.attname)))
|
|
|
|
def assertNoAnnotations(self, results):
|
|
"""
|
|
Check that the results of a raw query contain no annotations
|
|
"""
|
|
self.assertAnnotations(results, ())
|
|
|
|
def assertAnnotations(self, results, expected_annotations):
|
|
"""
|
|
Check that the passed raw query results contain the expected
|
|
annotations
|
|
"""
|
|
if expected_annotations:
|
|
for index, result in enumerate(results):
|
|
annotation, value = expected_annotations[index]
|
|
self.assertTrue(hasattr(result, annotation))
|
|
self.assertEqual(getattr(result, annotation), value)
|
|
|
|
def testSimpleRawQuery(self):
|
|
"""
|
|
Basic test of raw query with a simple database query
|
|
"""
|
|
query = "SELECT * FROM raw_query_author"
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors)
|
|
|
|
def testRawQueryLazy(self):
|
|
"""
|
|
Raw queries are lazy: they aren't actually executed until they're
|
|
iterated over.
|
|
"""
|
|
q = Author.objects.raw('SELECT * FROM raw_query_author')
|
|
self.assertTrue(q.query.cursor is None)
|
|
list(q)
|
|
self.assertTrue(q.query.cursor is not None)
|
|
|
|
def testFkeyRawQuery(self):
|
|
"""
|
|
Test of a simple raw query against a model containing a foreign key
|
|
"""
|
|
query = "SELECT * FROM raw_query_book"
|
|
books = Book.objects.all()
|
|
self.assertSuccessfulRawQuery(Book, query, books)
|
|
|
|
def testDBColumnHandler(self):
|
|
"""
|
|
Test of a simple raw query against a model containing a field with
|
|
db_column defined.
|
|
"""
|
|
query = "SELECT * FROM raw_query_coffee"
|
|
coffees = Coffee.objects.all()
|
|
self.assertSuccessfulRawQuery(Coffee, query, coffees)
|
|
|
|
def testOrderHandler(self):
|
|
"""
|
|
Test of raw raw query's tolerance for columns being returned in any
|
|
order
|
|
"""
|
|
selects = (
|
|
('dob, last_name, first_name, id'),
|
|
('last_name, dob, first_name, id'),
|
|
('first_name, last_name, dob, id'),
|
|
)
|
|
|
|
for select in selects:
|
|
query = "SELECT %s FROM raw_query_author" % select
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors)
|
|
|
|
def testTranslations(self):
|
|
"""
|
|
Test of raw query's optional ability to translate unexpected result
|
|
column names to specific model fields
|
|
"""
|
|
query = "SELECT first_name AS first, last_name AS last, dob, id FROM raw_query_author"
|
|
translations = {'first': 'first_name', 'last': 'last_name'}
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors, translations=translations)
|
|
|
|
def testParams(self):
|
|
"""
|
|
Test passing optional query parameters
|
|
"""
|
|
query = "SELECT * FROM raw_query_author WHERE first_name = %s"
|
|
author = Author.objects.all()[2]
|
|
params = [author.first_name]
|
|
results = list(Author.objects.raw(query, params=params))
|
|
self.assertProcessed(Author, results, [author])
|
|
self.assertNoAnnotations(results)
|
|
self.assertEqual(len(results), 1)
|
|
|
|
def testManyToMany(self):
|
|
"""
|
|
Test of a simple raw query against a model containing a m2m field
|
|
"""
|
|
query = "SELECT * FROM raw_query_reviewer"
|
|
reviewers = Reviewer.objects.all()
|
|
self.assertSuccessfulRawQuery(Reviewer, query, reviewers)
|
|
|
|
def testExtraConversions(self):
|
|
"""
|
|
Test to insure that extra translations are ignored.
|
|
"""
|
|
query = "SELECT * FROM raw_query_author"
|
|
translations = {'something': 'else'}
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors, translations=translations)
|
|
|
|
def testMissingFields(self):
|
|
query = "SELECT id, first_name, dob FROM raw_query_author"
|
|
for author in Author.objects.raw(query):
|
|
self.assertNotEqual(author.first_name, None)
|
|
# last_name isn't given, but it will be retrieved on demand
|
|
self.assertNotEqual(author.last_name, None)
|
|
|
|
def testMissingFieldsWithoutPK(self):
|
|
query = "SELECT first_name, dob FROM raw_query_author"
|
|
try:
|
|
list(Author.objects.raw(query))
|
|
self.fail('Query without primary key should fail')
|
|
except InvalidQuery:
|
|
pass
|
|
|
|
def testAnnotations(self):
|
|
query = "SELECT a.*, count(b.id) as book_count FROM raw_query_author a LEFT JOIN raw_query_book b ON a.id = b.author_id GROUP BY a.id, a.first_name, a.last_name, a.dob ORDER BY a.id"
|
|
expected_annotations = (
|
|
('book_count', 3),
|
|
('book_count', 0),
|
|
('book_count', 1),
|
|
('book_count', 0),
|
|
)
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors, expected_annotations)
|
|
|
|
def testWhiteSpaceQuery(self):
|
|
query = " SELECT * FROM raw_query_author"
|
|
authors = Author.objects.all()
|
|
self.assertSuccessfulRawQuery(Author, query, authors)
|
|
|
|
def testMultipleIterations(self):
|
|
query = "SELECT * FROM raw_query_author"
|
|
normal_authors = Author.objects.all()
|
|
raw_authors = Author.objects.raw(query)
|
|
|
|
# First Iteration
|
|
first_iterations = 0
|
|
for index, raw_author in enumerate(raw_authors):
|
|
self.assertEqual(normal_authors[index], raw_author)
|
|
first_iterations += 1
|
|
|
|
# Second Iteration
|
|
second_iterations = 0
|
|
for index, raw_author in enumerate(raw_authors):
|
|
self.assertEqual(normal_authors[index], raw_author)
|
|
second_iterations += 1
|
|
|
|
self.assertEqual(first_iterations, second_iterations)
|
|
|
|
def testGetItem(self):
|
|
# Indexing on RawQuerySets
|
|
query = "SELECT * FROM raw_query_author ORDER BY id ASC"
|
|
third_author = Author.objects.raw(query)[2]
|
|
self.assertEqual(third_author.first_name, 'Bob')
|
|
|
|
first_two = Author.objects.raw(query)[0:2]
|
|
self.assertEqual(len(first_two), 2)
|
|
|
|
self.assertRaises(TypeError, lambda: Author.objects.raw(query)['test'])
|
|
|
|
def test_inheritance(self):
|
|
# date is the end of the Cuban Missile Crisis, I have no idea when
|
|
# Wesley was bron
|
|
f = FriendlyAuthor.objects.create(first_name="Wesley", last_name="Chun",
|
|
dob=date(1962, 10, 28))
|
|
query = "SELECT * FROM raw_query_friendlyauthor"
|
|
self.assertEqual(
|
|
[o.pk for o in FriendlyAuthor.objects.raw(query)], [f.pk]
|
|
)
|
|
|
|
def test_query_count(self):
|
|
self.assertNumQueries(1,
|
|
list, Author.objects.raw("SELECT * FROM raw_query_author")
|
|
)
|