SqlAlchemy“案例”

Question

我有这部分询问

案例（ （FollowUpPeriodBodyAssociation.audit_body_id.isnot（无）， FollowUpPeriodBodyAssociation.audit_body_id.in_([body["id"] 表示body中的body])), 否则_=真 )

它不起作用，因为它说缺少关键字

我需要它做的是检查是否 FollowUpPeriodBodyAssociation.audit_body_id.isnot(None) ，如果是这种情况，则应用 FollowUpPeriodBodyAssociation.audit_body_id.in_([body["id"] for body in Body]) 否则返回 True

Answer 1

您是否忘记了正确的导入？

from sqlalchemy import case

# Assuming 'bodies' is a list of dictionaries with an "id" key
condition = case(
    [
        (
            FollowUpPeriodBodyAssociation.audit_body_id.isnot(None),
            FollowUpPeriodBodyAssociation.audit_body_id.in_([body["id"] for body in bodies])
        )
    ],
    else_=True
)