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