split tests into packages
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collerek
377
tests/test_relations/test_m2m_through_fields.py
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377
tests/test_relations/test_m2m_through_fields.py
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from typing import Any, Sequence, cast
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import databases
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import pytest
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import sqlalchemy
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from pydantic.typing import ForwardRef
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import ormar
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from tests.settings import DATABASE_URL
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database = databases.Database(DATABASE_URL, force_rollback=True)
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metadata = sqlalchemy.MetaData()
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class BaseMeta(ormar.ModelMeta):
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database = database
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metadata = metadata
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class Category(ormar.Model):
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class Meta(BaseMeta):
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tablename = "categories"
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id = ormar.Integer(primary_key=True)
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name = ormar.String(max_length=40)
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class PostCategory(ormar.Model):
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class Meta(BaseMeta):
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tablename = "posts_x_categories"
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id: int = ormar.Integer(primary_key=True)
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sort_order: int = ormar.Integer(nullable=True)
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param_name: str = ormar.String(default="Name", max_length=200)
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class Blog(ormar.Model):
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class Meta(BaseMeta):
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pass
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id: int = ormar.Integer(primary_key=True)
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title: str = ormar.String(max_length=200)
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class Post(ormar.Model):
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class Meta(BaseMeta):
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pass
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id: int = ormar.Integer(primary_key=True)
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title: str = ormar.String(max_length=200)
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categories = ormar.ManyToMany(Category, through=PostCategory)
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blog = ormar.ForeignKey(Blog)
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@pytest.fixture(autouse=True, scope="module")
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def create_test_database():
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engine = sqlalchemy.create_engine(DATABASE_URL)
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metadata.drop_all(engine)
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metadata.create_all(engine)
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yield
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metadata.drop_all(engine)
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class PostCategory2(ormar.Model):
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class Meta(BaseMeta):
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tablename = "posts_x_categories2"
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id: int = ormar.Integer(primary_key=True)
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sort_order: int = ormar.Integer(nullable=True)
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class Post2(ormar.Model):
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class Meta(BaseMeta):
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pass
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id: int = ormar.Integer(primary_key=True)
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title: str = ormar.String(max_length=200)
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categories = ormar.ManyToMany(Category, through=ForwardRef("PostCategory2"))
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@pytest.mark.asyncio
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async def test_forward_ref_is_updated():
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async with database:
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assert Post2.Meta.requires_ref_update
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Post2.update_forward_refs()
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assert Post2.Meta.model_fields["postcategory2"].to == PostCategory2
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@pytest.mark.asyncio
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async def test_setting_fields_on_through_model():
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async with database:
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post = await Post(title="Test post").save()
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category = await Category(name="Test category").save()
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await post.categories.add(category)
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assert hasattr(post.categories[0], "postcategory")
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assert post.categories[0].postcategory is None
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@pytest.mark.asyncio
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async def test_setting_additional_fields_on_through_model_in_add():
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async with database:
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post = await Post(title="Test post").save()
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category = await Category(name="Test category").save()
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await post.categories.add(category, sort_order=1)
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postcat = await PostCategory.objects.get()
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assert postcat.sort_order == 1
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@pytest.mark.asyncio
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async def test_setting_additional_fields_on_through_model_in_create():
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 2}
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)
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postcat = await PostCategory.objects.get()
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assert postcat.sort_order == 2
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@pytest.mark.asyncio
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async def test_getting_additional_fields_from_queryset() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1", postcategory={"sort_order": 1}
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 2}
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)
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await post.categories.all()
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assert post.postcategory is None
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assert post.categories[0].postcategory.sort_order == 1
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assert post.categories[1].postcategory.sort_order == 2
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post2 = await Post.objects.select_related("categories").get(
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categories__name="Test category2"
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)
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assert post2.categories[0].postcategory.sort_order == 2
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@pytest.mark.asyncio
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async def test_only_one_side_has_through() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1", postcategory={"sort_order": 1}
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 2}
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)
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post2 = await Post.objects.select_related("categories").get()
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assert post2.postcategory is None
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assert post2.categories[0].postcategory is not None
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await post2.categories.all()
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assert post2.postcategory is None
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assert post2.categories[0].postcategory is not None
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categories = await Category.objects.select_related("posts").all()
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assert isinstance(categories[0], Category)
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assert categories[0].postcategory is None
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assert categories[0].posts[0].postcategory is not None
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@pytest.mark.asyncio
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async def test_filtering_by_through_model() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 1, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 2, "param_name": "area"}
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)
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post2 = (
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await Post.objects.select_related("categories")
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.filter(postcategory__sort_order__gt=1)
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.get()
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)
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assert len(post2.categories) == 1
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assert post2.categories[0].postcategory.sort_order == 2
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post3 = await Post.objects.filter(
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categories__postcategory__param_name="volume"
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).get()
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assert len(post3.categories) == 1
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assert post3.categories[0].postcategory.param_name == "volume"
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@pytest.mark.asyncio
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async def test_deep_filtering_by_through_model() -> Any:
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async with database:
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blog = await Blog(title="My Blog").save()
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post = await Post(title="Test post", blog=blog).save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 1, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 2, "param_name": "area"}
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)
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blog2 = (
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await Blog.objects.select_related("posts__categories")
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.filter(posts__postcategory__sort_order__gt=1)
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.get()
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)
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assert len(blog2.posts) == 1
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assert len(blog2.posts[0].categories) == 1
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assert blog2.posts[0].categories[0].postcategory.sort_order == 2
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blog3 = await Blog.objects.filter(
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posts__categories__postcategory__param_name="volume"
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).get()
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assert len(blog3.posts) == 1
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assert len(blog3.posts[0].categories) == 1
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assert blog3.posts[0].categories[0].postcategory.param_name == "volume"
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@pytest.mark.asyncio
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async def test_ordering_by_through_model() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 2, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 1, "param_name": "area"}
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)
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await post.categories.create(
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name="Test category3",
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postcategory={"sort_order": 3, "param_name": "velocity"},
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)
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post2 = (
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await Post.objects.select_related("categories")
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.order_by("-postcategory__sort_order")
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.get()
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)
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assert len(post2.categories) == 3
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assert post2.categories[0].name == "Test category3"
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assert post2.categories[2].name == "Test category2"
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post3 = (
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await Post.objects.select_related("categories")
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.order_by("categories__postcategory__param_name")
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.get()
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)
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assert len(post3.categories) == 3
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assert post3.categories[0].postcategory.param_name == "area"
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assert post3.categories[2].postcategory.param_name == "volume"
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@pytest.mark.asyncio
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async def test_update_through_models_from_queryset_on_through() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 2, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 1, "param_name": "area"}
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)
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await post.categories.create(
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name="Test category3",
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postcategory={"sort_order": 3, "param_name": "velocity"},
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)
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await PostCategory.objects.filter(param_name="volume", post=post.id).update(
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sort_order=4
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)
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post2 = (
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await Post.objects.select_related("categories")
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.order_by("-postcategory__sort_order")
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.get()
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)
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assert len(post2.categories) == 3
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assert post2.categories[0].postcategory.param_name == "volume"
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assert post2.categories[2].postcategory.param_name == "area"
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@pytest.mark.asyncio
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async def test_update_through_model_after_load() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 2, "param_name": "volume"},
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)
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post2 = await Post.objects.select_related("categories").get()
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assert len(post2.categories) == 1
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await post2.categories[0].postcategory.load()
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await post2.categories[0].postcategory.update(sort_order=3)
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post3 = await Post.objects.select_related("categories").get()
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assert len(post3.categories) == 1
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assert post3.categories[0].postcategory.sort_order == 3
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@pytest.mark.asyncio
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async def test_update_through_from_related() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 2, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 1, "param_name": "area"}
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)
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await post.categories.create(
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name="Test category3",
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postcategory={"sort_order": 3, "param_name": "velocity"},
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)
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await post.categories.filter(name="Test category3").update(
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postcategory={"sort_order": 4}
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)
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post2 = (
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await Post.objects.select_related("categories")
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.order_by("postcategory__sort_order")
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.get()
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)
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assert len(post2.categories) == 3
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assert post2.categories[2].postcategory.sort_order == 4
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@pytest.mark.asyncio
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async def test_excluding_fields_on_through_model() -> Any:
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async with database:
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post = await Post(title="Test post").save()
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await post.categories.create(
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name="Test category1",
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postcategory={"sort_order": 2, "param_name": "volume"},
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)
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await post.categories.create(
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name="Test category2", postcategory={"sort_order": 1, "param_name": "area"}
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)
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await post.categories.create(
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name="Test category3",
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postcategory={"sort_order": 3, "param_name": "velocity"},
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)
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post2 = (
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await Post.objects.select_related("categories")
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.exclude_fields("postcategory__param_name")
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.order_by("postcategory__sort_order")
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.get()
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)
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assert len(post2.categories) == 3
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assert post2.categories[0].postcategory.param_name is None
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assert post2.categories[0].postcategory.sort_order == 1
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assert post2.categories[2].postcategory.param_name is None
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assert post2.categories[2].postcategory.sort_order == 3
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post3 = (
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await Post.objects.select_related("categories")
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.fields({"postcategory": ..., "title": ...})
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.exclude_fields({"postcategory": {"param_name", "sort_order"}})
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.get()
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)
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assert len(post3.categories) == 3
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for category in post3.categories:
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assert category.postcategory.param_name is None
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assert category.postcategory.sort_order is None
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