Seemingly Random 1=1 where 子句由 GORM 的 where 闭包生成

Question

有问题的示例程序：https://github.com/HybridProgrammer/GormOneIsOneError

有问题的 GORM 代码

def query = UserData.where {
        (
                teams { id in me.getAuthorities().id } && status { isOpen == true }
        ) || (
                owner == me && status { isOpen == true }
        )
    }

问题总结

生成的 SQL 查询偶尔会生成包含 1=1 的 where 子句，而我希望在 (?)

中看到 teams_alia1_.id

问题的详细描述

我写了两个集成测试来说明这个问题：

请参阅src/intrgration-test/groovy/ExampleITSpec。groovy

集成测试 1

void "never fails - direct approach"() {
    given:
    setupData()
    def me = User.first()

    when:
    def query = UserData.where {
        (
                teams { id in me.getAuthorities().id } && status { isOpen == true }
        ) || (
                owner == me && status { isOpen == true }
        )
    }

    then:
    me.getAuthorities().size() == 1
    query.size() == 2
}

总是生成SQL

select count(*) as y0_ 
from user_data this_ inner join status status_ali2_ 
     on this_.status_id=status_ali2_.id 
     inner join workflow_role_teams teams5_ 
     on this_.id=teams5_.user_data_teams_id 
     inner join role teams_alia1_ 
     on teams5_.role_id=teams_alia1_.id 
where 
(((teams_alia1_.id in (?)) and (status_ali2_.is_open=?)) 
or 
(this_.owner_id=? and (status_ali2_.is_open=?))) limit ?

集成测试 2

void "sometimes fails"() {
    given:
    setupData()
    def me = User.first()

    when:
    def query = exampleService.getMyOrMyTeamsData(me)

    then:
    me.getAuthorities().size() == 1
    query.size() == 2
}

偶尔生成SQL

select count(*) as y0_ 
from user_data this_ inner join status status_ali2_ 
    on this_.status_id=status_ali2_.id 
    inner join workflow_role_teams teams5_ 
    on this_.id=teams5_.user_data_teams_id 
    inner join role teams_alia1_ 
    on teams5_.role_id=teams_alia1_.id 
where 
((1=1 and (status_ali2_.is_open=?)) 
or 
(this_.owner_id=? and (status_ali2_.is_open=?))) limit ?

1=1从何而来

示例服务

def getMyOrMyTeamsData(User me) {
    // To fix the test Toggle these two lines
    def user = me
//        def user = User.get(me.id)

    def query = UserData.where {
        (
                teams { id in me.getAuthorities().id } && status { isOpen == true }
        ) || (
                owner == user && status { isOpen == true }
        )
    }

    return query

}

更新 1

调试应用程序时，您可以清楚地看到 authorities 变量在工作版本中传递给 DetachedCriteria#handleJunction(Closure callable)，但在从服务方法调用时消失。

集成测试 1 - 具有 authorities 属性

集成测试 2 - 没有权限属性

解决方案

请参阅解决方案分支 https://github.com/HybridProgrammer/GormOneIsOneError/commit/8c3d77f82081d0367961345b4fc70c789e322318

Answer 1

对我来说，测试总是失败，我不知道为什么测试 2 和 3 表现出不同的行为，但是在我将 List teams 更改为 List<Role> teams 之后 UserData.groovy，测试 3通过。

在 GORM 文档中，映射字段的声明经常被省略，这在这种情况下也有效。

希望这对你也有用。