def test_delete_removes_from_complex_model(self):
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
images = [
np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
for _ in range(7)
]
paths = [image_manager.find_path_for_image(image) for image in images]
# Build the model
inners = [
TestImageFieldEmbeddedModel(image=images[idx]) for idx in range(6)
]
nested1 = TestNestedEmbeddedDoc(inner=inners[0])
nested2 = TestNestedEmbeddedDoc(inner=inners[1])
nested3 = TestNestedEmbeddedDoc(inner=inners[2])
model = TestComplexImageModel(image=images[6],
inner=inners[3],
nested_inner=nested1,
inner_list=[inners[4], inners[5]],
nested_inner_list=[nested2, nested3])
model.save()
for path in paths:
self.assertTrue(image_manager.is_valid_path(path))
# Delete the model
model.delete()
for path in paths:
self.assertFalse(image_manager.is_valid_path(path))
def setup_image_manager(mock: bool = True):
IMAGES_DIR.mkdir(exist_ok=True)
if mock:
image_manager = MockImageManager()
else:
image_manager = im_manager.DefaultImageManager(IMAGES_DIR)
im_manager.set_image_manager(image_manager)
def test_delete_removes_from_subclass_in_embedded_model_list(self):
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
images = [
np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
for _ in range(4)
]
paths = [image_manager.find_path_for_image(image) for image in images]
# Define a subclass to an embedded document
class ImageFieldEmbeddedModelSubclass(TestImageFieldEmbeddedModel):
other_image = ImageField()
# Build the model
inner1 = ImageFieldEmbeddedModelSubclass(image=images[0],
other_image=images[1])
inner2 = ImageFieldEmbeddedModelSubclass(image=images[2],
other_image=images[3])
model = TestImageInEmbeddedDocumentListModel(
inner_list=[inner1, inner2])
model.save()
for path in paths:
self.assertTrue(image_manager.is_valid_path(path))
# Delete the model
model.delete()
for path in paths:
self.assertFalse(image_manager.is_valid_path(path))
def test_delete_removes_from_embedded_model_subclass(self):
image1 = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image2 = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
path1 = image_manager.find_path_for_image(image1)
path2 = image_manager.find_path_for_image(image2)
# Define a subclass to an embedded document
class ImageFieldEmbeddedModelSubclass(TestImageFieldEmbeddedModel):
other_image = ImageField()
# Save the image
model = TestImageInEmbeddedDocumentModel(
inner=ImageFieldEmbeddedModelSubclass(image=image1,
other_image=image2))
model.save()
self.assertTrue(image_manager.is_valid_path(path1))
self.assertTrue(image_manager.is_valid_path(path2))
# Delete the model
model.delete()
self.assertFalse(image_manager.is_valid_path(path1))
self.assertFalse(image_manager.is_valid_path(path2))
def test_delete_removes_from_lots_of_complex_models(self):
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
ids_to_delete = []
kept_paths = []
deleted_paths = []
for idx in range(10):
# Make the images
images = [
np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
for _ in range(7)
]
if idx % 2 == 0:
deleted_paths.extend(
image_manager.find_path_for_image(image)
for image in images)
else:
kept_paths.extend(
image_manager.find_path_for_image(image)
for image in images)
# Build the inner models
inners = [
TestImageFieldEmbeddedModel(image=images[idx])
for idx in range(6)
]
nested1 = TestNestedEmbeddedDoc(inner=inners[0])
nested2 = TestNestedEmbeddedDoc(inner=inners[1])
nested3 = TestNestedEmbeddedDoc(inner=inners[2])
# Make a complex model
model = TestComplexImageModel(image=images[6],
inner=inners[3],
nested_inner=nested1,
inner_list=[inners[4], inners[5]],
nested_inner_list=[nested2, nested3])
model.save()
if idx % 2 == 0:
ids_to_delete.append(model.pk)
for path in kept_paths:
self.assertTrue(image_manager.is_valid_path(path))
for path in deleted_paths:
self.assertTrue(image_manager.is_valid_path(path))
# Delete some of the models
TestComplexImageModel.objects.raw({
'_id': {
'$in': ids_to_delete
}
}).delete()
for path in kept_paths:
self.assertTrue(image_manager.is_valid_path(path))
for path in deleted_paths:
self.assertFalse(image_manager.is_valid_path(path))
def test_delete_removes(self):
image = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
path = image_manager.find_path_for_image(image)
# Save the image
model = TestImageFieldModel()
model.image = image
model.save()
self.assertTrue(image_manager.is_valid_path(path))
# Delete the model
model.delete()
self.assertFalse(image_manager.is_valid_path(path))
def test_image_field_stores_and_loads(self):
image = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
# Save the image
model = TestImageFieldModel()
model.image = image
model.save()
# Load all the entities
all_entities = list(TestImageFieldModel.objects.all())
self.assertEqual(len(all_entities), 1)
self.assertNPEqual(all_entities[0].image, image)
all_entities[0].delete()
def test_group_modifies_storage_path(self):
image = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
# Define a custom model class
class GroupedImageModel(pymodm.MongoModel):
image = ImageField(group='mygroup')
model = GroupedImageModel(image=image)
model.save()
# Get the unserialised documents
try:
documents = list(GroupedImageModel.objects.all().values())
self.assertEqual(len(documents), 1)
self.assertTrue(documents[0]['image'].startswith('mygroup/'))
finally:
GroupedImageModel._mongometa.collection.drop()
def test_delete_removes_from_embedded_model_list(self):
image_manager = im_manager.DefaultImageManager(dbconn.image_file,
allow_write=True)
im_manager.set_image_manager(image_manager)
image1 = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
image2 = np.random.randint(0, 255, size=(64, 64, 3), dtype=np.uint8)
path1 = image_manager.find_path_for_image(image1)
path2 = image_manager.find_path_for_image(image2)
# Build the model
inner1 = TestImageFieldEmbeddedModel(image=image1)
inner2 = TestImageFieldEmbeddedModel(image=image2)
model = TestImageInEmbeddedDocumentListModel(
inner_list=[inner1, inner2])
model.save()
self.assertTrue(image_manager.is_valid_path(path1))
self.assertTrue(image_manager.is_valid_path(path2))
# Delete the model
model.delete()
self.assertFalse(image_manager.is_valid_path(path1))
self.assertFalse(image_manager.is_valid_path(path2))