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"""
素材分类 CRUD
==============
"""
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.crud.base import CRUDBase
from app.models.broll_category import BrollCategory
class BrollCategoryCRUD(CRUDBase[BrollCategory]):
"""素材分类数据访问"""
def __init__(self) -> None:
super().__init__(BrollCategory)
async def get_by_name_and_level(
self, db: AsyncSession, *, name: str, level: int
) -> BrollCategory | None:
"""根据名称和层级获取启用的分类"""
result = await db.execute(
select(BrollCategory).where(
BrollCategory.name == name,
BrollCategory.level == level,
BrollCategory.status == "active",
)
)
return result.scalar_one_or_none()
async def get_by_names_and_level(
self, db: AsyncSession, *, names: list[str], level: int
) -> list[BrollCategory]:
"""批量根据名称和层级获取启用的分类"""
if not names:
return []
result = await db.execute(
select(BrollCategory).where(
BrollCategory.name.in_(names),
BrollCategory.level == level,
BrollCategory.status == "active",
)
)
return list(result.scalars().all())
async def get_children_by_parent_id(
self, db: AsyncSession, *, parent_id: int, level: int
) -> list[BrollCategory]:
"""根据父分类 ID 和层级获取启用的子分类"""
result = await db.execute(
select(BrollCategory).where(
BrollCategory.parent_id == parent_id,
BrollCategory.level == level,
BrollCategory.status == "active",
)
)
return list(result.scalars().all())
async def get_by_name_like_and_level(
self, db: AsyncSession, *, name: str, level: int
) -> BrollCategory | None:
"""根据名称模糊匹配和层级获取启用的分类(LIKE %name%"""
result = await db.execute(
select(BrollCategory).where(
BrollCategory.name.like(f"%{name}%"),
BrollCategory.level == level,
BrollCategory.status == "active",
)
)
return result.scalar_one_or_none()
async def get_by_level(self, db: AsyncSession, *, level: int) -> list[BrollCategory]:
"""根据层级获取所有启用的分类"""
result = await db.execute(
select(BrollCategory).where(
BrollCategory.level == level,
BrollCategory.status == "active",
)
)
return list(result.scalars().all())
# 导出实例
broll_category = BrollCategoryCRUD()