72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
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"""fin_product 产品仓储：列表搜索（关键字/类型/风险/状态筛选 + 排序 + 分页）。"""
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from __future__ import annotations
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from sqlalchemy import or_, select
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from model.fin_product import FinProduct
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from repositories.base import BaseRepository
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from utils.exceptions import ParamError
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# 排序字段白名单：防止 sort_by 注入，字符串映射到 ORM 列（不拼 SQL）
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SORTABLE_FIELDS = {
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"expected_return": FinProduct.expected_return,
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"nav": FinProduct.nav,
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"fee_rate": FinProduct.fee_rate,
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"risk_level": FinProduct.risk_level,
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"create_time": FinProduct.create_time,
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}
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class ProductRepo(BaseRepository):
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model = FinProduct
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async def get_by_code(self, product_code: str) -> FinProduct | None:
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return await self.db.scalar(
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select(FinProduct).where(FinProduct.product_code == product_code)
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)
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async def search(
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self,
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*,
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keyword: str | None = None,
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product_type: str | None = None,
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risk_level: str | None = None,
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status: str | None = "在售",
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sort_by: str = "create_time",
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sort_order: str = "desc",
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limit: int = 10,
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offset: int = 0,
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) -> tuple[list[FinProduct], int]:
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conds = []
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if status and status != "全部":
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conds.append(FinProduct.status == status)
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if product_type:
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conds.append(FinProduct.product_type == product_type)
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if risk_level:
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conds.append(FinProduct.risk_level == risk_level)
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if keyword:
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like = f"%{keyword}%"
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conds.append(
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or_(
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FinProduct.product_code.like(like),
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FinProduct.product_name.like(like),
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FinProduct.fund_manager.like(like),
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)
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)
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col = SORTABLE_FIELDS.get(sort_by)
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if col is None:
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raise ParamError(f"不支持的排序字段: {sort_by}")
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order_col = col.desc() if sort_order == "desc" else col.asc()
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stmt = (
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select(FinProduct)
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.where(*conds)
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.order_by(order_col)
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.limit(limit)
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.offset(offset)
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)
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items = list((await self.db.scalars(stmt)).all())
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total = await self.count(where=conds)
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return items, total
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