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# type: ignore
from typing import ForwardRef, List, Optional
import ormar
import pytest
import pytest_asyncio
import sqlalchemy as sa
from ormar.exceptions import ModelError
from tests.lifespan import init_tests
from tests.settings import create_config
base_ormar_config = create_config()
PersonRef = ForwardRef("Person")
class Person(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
supervisor: PersonRef = ormar.ForeignKey(PersonRef, related_name="employees")
Person.update_forward_refs()
GameRef = ForwardRef("Game")
ChildRef = ForwardRef("Child")
ChildFriendRef = ForwardRef("ChildFriend")
class Child(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
favourite_game: GameRef = ormar.ForeignKey(GameRef, related_name="liked_by")
least_favourite_game: GameRef = ormar.ForeignKey(
GameRef, related_name="not_liked_by"
)
friends = ormar.ManyToMany(
ChildRef, through=ChildFriendRef, related_name="also_friends"
)
class ChildFriend(ormar.Model):
ormar_config = base_ormar_config.copy()
class Game(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
Child.update_forward_refs()
create_test_database = init_tests(base_ormar_config)
@pytest_asyncio.fixture(scope="function")
async def cleanup():
yield
async with base_ormar_config.database:
await ChildFriend.objects.delete(each=True)
await Child.objects.delete(each=True)
await Game.objects.delete(each=True)
await Person.objects.delete(each=True)
@pytest.mark.asyncio
async def test_not_updated_model_raises_errors():
Person2Ref = ForwardRef("Person2")
class Person2(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
supervisor: Person2Ref = ormar.ForeignKey(Person2Ref, related_name="employees")
with pytest.raises(ModelError):
await Person2.objects.create(name="Test")
with pytest.raises(ModelError):
Person2(name="Test")
with pytest.raises(ModelError):
await Person2.objects.get()
@pytest.mark.asyncio
async def test_not_updated_model_m2m_raises_errors():
Person3Ref = ForwardRef("Person3")
class PersonFriend(ormar.Model):
ormar_config = base_ormar_config.copy()
class Person3(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
supervisors: Person3Ref = ormar.ManyToMany(
Person3Ref, through=PersonFriend, related_name="employees"
)
with pytest.raises(ModelError):
await Person3.objects.create(name="Test")
with pytest.raises(ModelError):
Person3(name="Test")
with pytest.raises(ModelError):
await Person3.objects.get()
@pytest.mark.asyncio
async def test_not_updated_model_m2m_through_raises_errors():
PersonPetRef = ForwardRef("PersonPet")
class Pet(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
class Person4(ormar.Model):
ormar_config = base_ormar_config.copy()
id: int = ormar.Integer(primary_key=True)
name: str = ormar.String(max_length=100)
pets: List[Pet] = ormar.ManyToMany(
Pet, through=PersonPetRef, related_name="owners"
)
class PersonPet(ormar.Model):
ormar_config = base_ormar_config.copy()
with pytest.raises(ModelError):
await Person4.objects.create(name="Test")
with pytest.raises(ModelError):
Person4(name="Test")
with pytest.raises(ModelError):
await Person4.objects.get()
def test_proper_field_init():
assert "supervisor" in Person.ormar_config.model_fields
assert Person.ormar_config.model_fields["supervisor"].to == Person
assert "supervisor" in Person.model_fields
assert Person.model_fields["supervisor"].annotation == Optional[Person]
assert "supervisor" in Person.ormar_config.table.columns
assert isinstance(
Person.ormar_config.table.columns["supervisor"].type, sa.sql.sqltypes.Integer
)
assert len(Person.ormar_config.table.columns["supervisor"].foreign_keys) > 0
assert "person_supervisor" in Person.ormar_config.alias_manager._aliases_new
@pytest.mark.asyncio
async def test_self_relation():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sam = await Person.objects.create(name="Sam")
joe = await Person(name="Joe", supervisor=sam).save()
assert joe.supervisor.name == "Sam"
joe_check = await Person.objects.select_related("supervisor").get(
name="Joe"
)
assert joe_check.supervisor.name == "Sam"
sam_check = await Person.objects.select_related("employees").get(name="Sam")
assert sam_check.name == "Sam"
assert sam_check.employees[0].name == "Joe"
@pytest.mark.asyncio
async def test_other_forwardref_relation(cleanup):
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
checkers = await Game.objects.create(name="checkers")
uno = await Game(name="Uno").save()
await Child(
name="Billy", favourite_game=uno, least_favourite_game=checkers
).save()
await Child(
name="Kate", favourite_game=checkers, least_favourite_game=uno
).save()
billy_check = await Child.objects.select_related(
["favourite_game", "least_favourite_game"]
).get(name="Billy")
assert billy_check.favourite_game == uno
assert billy_check.least_favourite_game == checkers
uno_check = await Game.objects.select_related(
["liked_by", "not_liked_by"]
).get(name="Uno")
assert uno_check.liked_by[0].name == "Billy"
assert uno_check.not_liked_by[0].name == "Kate"
@pytest.mark.asyncio
async def test_m2m_self_forwardref_relation(cleanup):
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
checkers = await Game.objects.create(name="Checkers")
uno = await Game(name="Uno").save()
jenga = await Game(name="Jenga").save()
billy = await Child(
name="Billy", favourite_game=uno, least_favourite_game=checkers
).save()
kate = await Child(
name="Kate", favourite_game=checkers, least_favourite_game=uno
).save()
steve = await Child(
name="Steve", favourite_game=jenga, least_favourite_game=uno
).save()
await billy.friends.add(kate)
await billy.friends.add(steve)
billy_check = await Child.objects.select_related(
[
"friends",
"favourite_game",
"least_favourite_game",
"friends__favourite_game",
"friends__least_favourite_game",
]
).get(name="Billy")
assert len(billy_check.friends) == 2
assert billy_check.friends[0].name == "Kate"
assert billy_check.friends[0].favourite_game.name == "Checkers"
assert billy_check.friends[0].least_favourite_game.name == "Uno"
assert billy_check.friends[1].name == "Steve"
assert billy_check.friends[1].favourite_game.name == "Jenga"
assert billy_check.friends[1].least_favourite_game.name == "Uno"
assert billy_check.favourite_game.name == "Uno"
kate_check = await Child.objects.select_related(["also_friends"]).get(
name="Kate"
)
assert len(kate_check.also_friends) == 1
assert kate_check.also_friends[0].name == "Billy"
billy_check = (
await Child.objects.select_related(
[
"friends",
"favourite_game",
"least_favourite_game",
"friends__favourite_game",
"friends__least_favourite_game",
]
)
.filter(friends__favourite_game__name="Checkers")
.get(name="Billy")
)
assert len(billy_check.friends) == 1
assert billy_check.friends[0].name == "Kate"
assert billy_check.friends[0].favourite_game.name == "Checkers"
assert billy_check.friends[0].least_favourite_game.name == "Uno"
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