def test_local_key_from_param_is_saved(self):
a1 = LinkedAuthor(name='A1')
a1.save()
post = LinkedPost(title='P1', content='P2', authorId=a1.id)
post.save()
collection = Connection.get_collection(LinkedPost)
for item in collection.find({}):
self.assertEqual(item['authorId'], ObjectId(a1.id))
def test_1l_1f_list_can_be_nullified(self):
author = LinkedAuthor(name='A', posts=[
LinkedPost(title='P1', content='C1'),
LinkedPost(title='P2', content='C2')])
author.save()
collection = Connection.get_collection(LinkedAuthor)
self.assertEqual(collection.count_documents({}), 1)
collection = Connection.get_collection(LinkedPost)
self.assertEqual(collection.count_documents({}), 2)
author.delete()
for obj in collection.find():
self.assertNotIn('authorId', obj)
def test_1_many_ref_uses_unique_objects(self):
post1 = LinkedPost(title='P1', content='A')
post2 = LinkedPost(title='P2', content='A')
author = LinkedAuthor(name='A1', posts=[post1, post2])
author.save()
posts = LinkedPost.find().include('author').exec()
p1 = posts[0]
p2 = posts[1]
self.assertIs(p1.author, p2.author)
p1.author.name = 'New Name'
p1.save()
self.assertEqual(p2.author.name, 'New Name')
def test_fetched_objects_are_unmodified_many_1(self):
author = LinkedAuthor(name='Me')
post1 = LinkedPost(title='P1', content='A')
post2 = LinkedPost(title='P2', content='A')
author.posts = [post1, post2]
author.save()
posts = LinkedPost.find().include('author').exec()
self.assertEqual(posts[0].is_new, False)
self.assertEqual(posts[0].is_modified, False)
self.assertEqual(posts[0].modified_fields, ())
self.assertEqual(posts[1].is_new, False)
self.assertEqual(posts[1].is_modified, False)
self.assertEqual(posts[1].modified_fields, ())
self.assertEqual(posts[0].author.is_new, False)
self.assertEqual(posts[0].author.is_modified, False)
self.assertEqual(posts[0].author.modified_fields, ())
self.assertEqual(posts[0].author, posts[1].author)
def test_set_local_key_to_unset_is_saved(self):
post = LinkedPost(title='P1', content='P2')
author = LinkedAuthor(name='A1')
post.author = author
post.save()
post.author_id = None
post.save()
collection = Connection.get_collection(LinkedPost)
for item in collection.find({}):
self.assertNotIn('authorId', item)
def test_alter_local_key_is_saved(self):
post = LinkedPost(title='P1', content='P2')
a1 = LinkedAuthor(name='A1')
post.author = a1
post.save()
a2 = LinkedAuthor(name='A2')
post.author_id = a2.id
post.save()
collection = Connection.get_collection(LinkedPost)
for item in collection.find({}):
self.assertEqual(item['authorId'], ObjectId(a2.id))
def test_fetched_objects_are_unmodified_1_many(self):
author = LinkedAuthor(name='Me')
post1 = LinkedPost(title='P1', content='A')
post2 = LinkedPost(title='P2', content='A')
author.posts = [post1, post2]
author.save()
authors = LinkedAuthor.find().include('posts').exec()
a = authors[0]
p1 = a.posts[0]
p2 = a.posts[1]
self.assertEqual(a.is_new, False)
self.assertEqual(a.is_modified, False)
self.assertEqual(a.modified_fields, ())
self.assertEqual(p1.is_new, False)
self.assertEqual(p1.is_modified, False)
self.assertEqual(p1.modified_fields, ())
self.assertEqual(p2.is_new, False)
self.assertEqual(p2.is_modified, False)
self.assertEqual(p2.modified_fields, ())
def test_many_1_unlink_unset_is_saved(self):
author = LinkedAuthor(name='A')
post = LinkedPost(title='T', content='C')
post.author = author
post.save()
post.author_id = None
post.save()
self.assertEqual(author.is_new, False)
self.assertEqual(author.is_modified, False)
self.assertEqual(author.modified_fields, ())
self.assertEqual(post.is_new, False)
self.assertEqual(post.is_modified, False)
self.assertEqual(post.modified_fields, ())
collection = Connection.get_collection(LinkedPost)
for item in collection.find({}):
self.assertNotIn('authorId', item)
def test_encode_new_object_correctly_with_existing_objects_1_many(self):
author = LinkedAuthor(name='A')
post = LinkedPost(title='P', content='P')
author.save()
post.author = author
post.save()
def test_many_1_ref_lookup_fetches_linked_object(self):
author = LinkedAuthor(name='A1')
post1 = LinkedPost(title='P1', content='A')
post2 = LinkedPost(title='P2', content='A')
post3 = LinkedPost(title='P3', content='A')
post4 = LinkedPost(title='B1', content='A')
post5 = LinkedPost(title='B2', content='A')
post6 = LinkedPost(title='B3', content='A')
author.posts = [post1, post2, post3, post4, post5, post6]
author.save()
author = LinkedAuthor(name='A2')
post1 = LinkedPost(title='P1', content='B')
post2 = LinkedPost(title='P2', content='B')
post3 = LinkedPost(title='P3', content='B')
post4 = LinkedPost(title='B1', content='B')
post5 = LinkedPost(title='B2', content='B')
post6 = LinkedPost(title='B3', content='B')
author.posts = [post1, post2, post3, post4, post5, post6]
author.save()
results = LinkedPost.find(title='P1').include('author').exec()
self.assertEqual(results[0].author.name, 'A1')
self.assertEqual(results[1].author.name, 'A2')
def test_1_many_ref_lookup_fetches_linked_objects(self):
author = LinkedAuthor(name='Kai Nang Piang Tshung')
post1 = LinkedPost(title='P1', content='A')
post2 = LinkedPost(title='P2', content='A')
post3 = LinkedPost(title='P3', content='A')
post4 = LinkedPost(title='B1', content='A')
post5 = LinkedPost(title='B2', content='A')
post6 = LinkedPost(title='B3', content='A')
author.posts = [post1, post2, post3, post4, post5, post6]
author.save()
author = LinkedAuthor(name='Khui Tsia Koi Tsuang Kai Low Rider')
post1 = LinkedPost(title='P1', content='B')
post2 = LinkedPost(title='P2', content='B')
post3 = LinkedPost(title='P3', content='B')
post4 = LinkedPost(title='B1', content='B')
post5 = LinkedPost(title='B2', content='B')
post6 = LinkedPost(title='B3', content='B')
author.posts = [post1, post2, post3, post4, post5, post6]
author.save()
results = LinkedAuthor.find() \
.include('posts',
LinkedPost.find(title={'$regex': 'B'}))\
.exec()
self.assertEqual(len(results), 2)
self.assertEqual(len(results[0].posts), 3)
self.assertEqual(len(results[1].posts), 3)
self.assertEqual(results[0].posts[0].title, 'B1')
self.assertEqual(results[0].posts[1].title, 'B2')
self.assertEqual(results[0].posts[2].title, 'B3')
self.assertEqual(results[1].posts[0].title, 'B1')
self.assertEqual(results[1].posts[1].title, 'B2')
self.assertEqual(results[1].posts[2].title, 'B3')