async def test_filter_by_aggregation_field_coalesce(self):
await self.model.create(chars="aaa", nullable="null")
await self.model.create(chars="bbb")
objs = await self.model.annotate(null=Coalesce("nullable", "null")).filter(null="null")
self.assertEqual(len(objs), 2)
self.assertSetEqual({(o.chars, o.null) for o in objs}, {("aaa", "null"), ("bbb", "null")})
async def test_filter_by_aggregation_field_coalesce(self):
await Tournament.create(name="1", desc="demo")
await Tournament.create(name="2")
tournaments = await Tournament.annotate(
clean_desc=Coalesce("desc", "demo")).filter(clean_desc="demo")
self.assertEqual(len(tournaments), 2)
self.assertSetEqual({(t.name, t.clean_desc)
for t in tournaments}, {("1", "demo"),
("2", "demo")})
async def test_filter_by_aggregation_field_comparison_coalesce_numeric(self):
await IntFields.create(intnum=3, intnum_null=10)
await IntFields.create(intnum=1, intnum_null=4)
await IntFields.create(intnum=2)
ints = await IntFields.annotate(clean_intnum_null=Coalesce("intnum_null", 0)).filter(
clean_intnum_null__gt=0
)
self.assertEqual(len(ints), 2)
self.assertSetEqual({i.clean_intnum_null for i in ints}, {10, 4})
async def test_filter_by_aggregation_field_coalesce_numeric(self):
await IntFields.create(intnum=1, intnum_null=10)
await IntFields.create(intnum=4)
ints = await IntFields.annotate(
clean_intnum_null=Coalesce("intnum_null", 0)
).filter(clean_intnum_null__in=(0, 10))
self.assertEqual(len(ints), 2)
self.assertSetEqual(
{(i.intnum_null, i.clean_intnum_null)
for i in ints}, {(None, 0), (10, 10)})
async def test_func_then(self):
category = Case(When(intnum__gte=8, then=Coalesce("intnum_null", 10)),
default="default")
sql = IntFields.all().annotate(category=category).values(
"intnum", "category").sql()
dialect = self.db.schema_generator.DIALECT
if dialect == "mysql":
expected_sql = "SELECT `intnum` `intnum`,CASE WHEN `intnum`>=8 THEN COALESCE(`intnum_null`,10) ELSE 'default' END `category` FROM `intfields`"
else:
expected_sql = 'SELECT "intnum" "intnum",CASE WHEN "intnum">=8 THEN COALESCE("intnum_null",10) ELSE \'default\' END "category" FROM "intfields"'
self.assertEqual(sql, expected_sql)
async def run():
await Tortoise.init(db_url="mysql://*****:*****@localhost:55555/test_demo", modules={"models": ["__main__"]})
await Tortoise.generate_schemas()
tournament = await Tournament.create(name="New Tournament", desc="great")
await tournament.save()
await Tournament.create(name="Second tournament")
await Tournament.create(name=" final tournament ")
await Event(name="Without participants", tournament_id=tournament.id).save()
event = Event(name="Test", tournament_id=tournament.id)
await event.save()
participants = []
for i in range(10):
team = Team(name=f"Team {(i + 1)}")
await team.save()
participants.append(team)
await event.participants.add(*participants)
# await event.participants.add(participants[0], participants[1])
print(await Tournament.all().annotate(events_count=Count("events")).filter(events_count__lte=3).values())
print(
await Tournament
.annotate(events_count_with_filter=Count("events", _filter=Q(name="New Tournament")))
.filter(events_count_with_filter__gte=0).values()
)
print(await Event.annotate(lowest_team_id=Count("participants__id")).values())
print(await Tournament.annotate(events_count=Count("events")).order_by("events_count"))
print(await Event.annotate(tournament_test_id=Sum("tournament__id")).first())
print(
await Tournament.annotate(clean_desciption=Coalesce("desc", "hehe")).values()
)
print(
await Tournament.annotate(trimmed_name=Trim("name")).values()
)
print(
await Tournament.annotate(name_len=Length("name")).filter(
name_len__gt=len("New Tournament")
)
)
print(await Tournament.annotate(name_lo=Lower("name")).filter(name_lo="new tournament").values())
print(await Tournament.annotate(name_lo=Upper("name")).filter(name_lo="NEW TOURNAMENT").values())
print()
async def test_concat_functions(self):
author = await Author.create(name="Some One")
await Book.create(name="Physics Book",
author=author,
rating=4,
subject="physics ")
await Book.create(name="Mathematics Book",
author=author,
rating=3,
subject=" mathematics")
await Book.create(name="No-subject Book", author=author, rating=3)
ret = (await Book.all().annotate(long_info=Max(
Concat("name", "(", Coalesce(Trim("subject"), "others"), ")"))
).values("long_info"))
self.assertEqual(ret, [{"long_info": "Physics Book(physics)"}])
async def run():
await Tortoise.init(db_url="sqlite://:memory:",
modules={"models": ["__main__"]})
await Tortoise.generate_schemas()
tournament = await Tournament.create(name="New Tournament", desc="great")
await tournament.save()
await Tournament.create(name="Second tournament")
await Tournament.create(name=" final tournament ")
await Event(name="Without participants",
tournament_id=tournament.id).save()
event = Event(name="Test", tournament_id=tournament.id)
await event.save()
participants = []
for i in range(2):
team = Team(name=f"Team {(i + 1)}")
await team.save()
participants.append(team)
await event.participants.add(participants[0], participants[1])
await event.participants.add(participants[0], participants[1])
print(await Tournament.all().annotate(events_count=Count("events")
).filter(events_count__gte=1))
print(await Event.filter(id=event.id).first().annotate(
lowest_team_id=Min("participants__id")))
print(await Tournament.all().annotate(events_count=Count("events")
).order_by("events_count"))
print(await Event.all().annotate(tournament_test_id=Sum("tournament__id")
).first())
print(await Tournament.annotate(clean_desciption=Coalesce("desc")
).filter(clean_desciption=""))
print(await Tournament.annotate(trimmed_name=Trim("name")
).filter(trimmed_name="final tournament"))
print(await
Tournament.annotate(name_len=Length("name")
).filter(name_len__gt=len("New Tournament")))
print(await Tournament.annotate(name_lo=Lower("name")
).filter(name_lo="new tournament"))
print(await Tournament.annotate(name_lo=Upper("name")
).filter(name_lo="NEW TOURNAMENT"))