createCriteria 的域对象的集合属性是否有“包含"功能? [英] Is there a 'contains' functionality on a collection property of a domain object for createCriteria?

问题描述

我有一个拍卖域对象和一个用户域对象.拍卖 hasMany 用户.

I have an Auction domain object and a User domain object. An Auction hasMany Users.

我想使用 createCriteria 做的事情是这样的:

What I'd like to do, using createCriteria, is something like this:

def c = Auction.createCriteria()
def l = c.list (max: maxVar, offset: offsetVar) {
    contains("users", thisUser)
}

虽然，contains 不在可接受的节点列表中:createCriteria 描述页面.

Though, contains is not in the list of acceptable nodes: createCriteria description page.

有没有办法实现这个功能?

Is there any way to implement this functionality?

需要明确的是，有没有办法让指定的 User 对象包含在 Auction 的集合属性中?

To be clear, is there a way to have the criteria be that a specified User object is contained within a collection property of the Auction?

推荐答案

试试这个:

def l = c.list (max: maxVar, offset: offsetVar) {
    users {
        idEq(thisUser.id)
    }
}

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