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from typing import Optional
import ormar
import pytest
from ormar import NoMatch
from tests.lifespan import init_tests
from tests.settings import create_config
base_ormar_config = create_config()
class Album(ormar.Model):
ormar_config = base_ormar_config.copy(tablename="albums")
id: int = ormar.Integer(primary_key=True, name="album_id")
name: str = ormar.String(max_length=100)
is_best_seller: bool = ormar.Boolean(default=False)
class Writer(ormar.Model):
ormar_config = base_ormar_config.copy(tablename="writers")
id: int = ormar.Integer(primary_key=True, name="writer_id")
name: str = ormar.String(max_length=100)
class Track(ormar.Model):
ormar_config = base_ormar_config.copy(tablename="tracks")
id: int = ormar.Integer(primary_key=True)
album: Optional[Album] = ormar.ForeignKey(Album, name="album_id")
title: str = ormar.String(max_length=100)
position: int = ormar.Integer()
play_count: Optional[int] = ormar.Integer(nullable=True)
written_by: Optional[Writer] = ormar.ForeignKey(Writer, name="writer_id")
async def get_sample_data():
album = await Album(name="Malibu").save()
writer1 = await Writer.objects.create(name="John")
writer2 = await Writer.objects.create(name="Sue")
track1 = await Track(
album=album, title="The Bird", position=1, play_count=30, written_by=writer1
).save()
track2 = await Track(
album=album,
title="Heart don't stand a chance",
position=2,
play_count=20,
written_by=writer2,
).save()
tracks3 = await Track(
album=album, title="The Waters", position=3, play_count=10, written_by=writer1
).save()
return album, [track1, track2, tracks3]
create_test_database = init_tests(base_ormar_config)
@pytest.mark.asyncio
async def test_quering_by_reverse_fk():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sample_data = await get_sample_data()
track1 = sample_data[1][0]
album = await Album.objects.first()
assert await album.tracks.exists()
assert await album.tracks.count() == 3
track, created = await album.tracks.get_or_create(
title="The Bird", position=1, play_count=30
)
assert track == track1
assert created is False
assert len(album.tracks) == 1
track, created = await album.tracks.get_or_create(
title="The Bird2", _defaults={"position": 4, "play_count": 5}
)
assert track != track1
assert created is True
assert track.pk is not None
assert track.position == 4 and track.play_count == 5
assert len(album.tracks) == 2
await album.tracks.update_or_create(pk=track.pk, play_count=50)
assert len(album.tracks) == 2
track, created = await album.tracks.get_or_create(title="The Bird2")
assert created is False
assert track.play_count == 50
assert len(album.tracks) == 1
await album.tracks.remove(track)
assert track.album is None
await track.delete()
assert len(album.tracks) == 0
track6 = await album.tracks.update_or_create(
title="The Bird3", position=4, play_count=5
)
assert track6.pk is not None
assert track6.play_count == 5
assert len(album.tracks) == 1
await album.tracks.remove(track6)
assert track6.album is None
await track6.delete()
assert len(album.tracks) == 0
@pytest.mark.asyncio
async def test_getting():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sample_data = await get_sample_data()
album = sample_data[0]
track1 = await album.tracks.fields(["album", "title", "position"]).get(
title="The Bird"
)
track2 = await album.tracks.exclude_fields("play_count").get(
title="The Bird"
)
for track in [track1, track2]:
assert track.title == "The Bird"
assert track.album == album
assert track.play_count is None
assert len(album.tracks) == 1
tracks = await album.tracks.all()
assert len(tracks) == 3
assert len(album.tracks) == 3
tracks = await album.tracks.order_by("play_count").all()
assert len(tracks) == 3
assert tracks[0].title == "The Waters"
assert tracks[2].title == "The Bird"
assert len(album.tracks) == 3
track = await album.tracks.create(
title="The Bird Fly Away", position=4, play_count=10
)
assert track.title == "The Bird Fly Away"
assert track.position == 4
assert track.album == album
assert len(album.tracks) == 4
tracks = await album.tracks.all()
assert len(tracks) == 4
tracks = await album.tracks.limit(2).all()
assert len(tracks) == 2
tracks2 = await album.tracks.limit(2).offset(2).all()
assert len(tracks2) == 2
assert tracks != tracks2
tracks3 = await album.tracks.filter(play_count__lt=15).all()
assert len(tracks3) == 2
tracks4 = await album.tracks.exclude(play_count__lt=15).all()
assert len(tracks4) == 2
assert tracks3 != tracks4
assert len(album.tracks) == 2
await album.tracks.clear()
tracks = await album.tracks.all()
assert len(tracks) == 0
assert len(album.tracks) == 0
still_tracks = await Track.objects.all()
assert len(still_tracks) == 4
for track in still_tracks:
assert track.album is None
@pytest.mark.asyncio
async def test_cleaning_related():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sample_data = await get_sample_data()
album = sample_data[0]
await album.tracks.clear(keep_reversed=False)
tracks = await album.tracks.all()
assert len(tracks) == 0
assert len(album.tracks) == 0
no_tracks = await Track.objects.all()
assert len(no_tracks) == 0
@pytest.mark.asyncio
async def test_loading_related():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sample_data = await get_sample_data()
album = sample_data[0]
tracks = await album.tracks.select_related("written_by").all()
assert len(tracks) == 3
assert len(album.tracks) == 3
for track in tracks:
assert track.written_by is not None
tracks = await album.tracks.prefetch_related("written_by").all()
assert len(tracks) == 3
assert len(album.tracks) == 3
for track in tracks:
assert track.written_by is not None
@pytest.mark.asyncio
async def test_adding_removing():
async with base_ormar_config.database:
async with base_ormar_config.database.transaction(force_rollback=True):
sample_data = await get_sample_data()
album = sample_data[0]
track_new = await Track(title="Rainbow", position=5, play_count=300).save()
await album.tracks.add(track_new)
assert track_new.album == album
assert len(album.tracks) == 4
track_check = await Track.objects.get(title="Rainbow")
assert track_check.album == album
await album.tracks.remove(track_new)
assert track_new.album is None
assert len(album.tracks) == 3
track1 = album.tracks[0]
await album.tracks.remove(track1, keep_reversed=False)
with pytest.raises(NoMatch):
await track1.load()
track_test = await Track.objects.get(title="Rainbow")
assert track_test.album is None
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