31 lines
867 B
Python
31 lines
867 B
Python
#!/usr/bin/env python3
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# -*- coding:utf-8 -*-
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from sqlalchemy import and_, func
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from sqlalchemy.orm import Session
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from app.models.form import Form
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from app.schemas import FormCreate, FormUpdate
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from app.crud.base import CRUDBase
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class CRUDForm(CRUDBase[Form, FormUpdate, FormCreate]):
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def get_last_bench(self, db: Session, num: int = 10):
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# 创建子查询，获取每个不同的name的最大id
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subquery = (
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db.query(self.model.name, func.max(self.model.id).label('max_id'))
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.group_by(self.model.name)
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.subquery()
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)
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# 主查询，与子查询连接，获取每个name的最后一条数据
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results = (
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db.query(self.model)
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.join(subquery, and_(self.model.id == subquery.c.max_id))
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.all()
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)
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return results
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form = CRUDForm(Form)
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