如何查询具有包含指定值的RealmList的RealmObject [英] How do I query RealmObject that have RealmList that contains specified value

问题描述

我有一个RealmObject(比如说Owner)，它有RealmList<Cat>. Cat具有属性name.如何查询所有具有指定名称猫的Owner?

I have a RealmObject (let's say Owner) and it has RealmList<Cat>. Cat has a property name. How do I query for all the Owners who have cat with specified name ?

我尝试过:

RealmResult<Owner> owners = realm.query(Owner.class)
                                    .contains("cats", "Garfield")
                                    .findAll();

但是它不起作用.

PS很可能重复但找不到.

PS most probably duplicate but cant find.

推荐答案

.可以在查询子对象/列表字段时使用，对于您的情况，请尝试以下操作:

. can be used when query child object/list fields, for your case try below:

RealmResult<Owner> owners = realm.query(Owner.class)
    .contains("cats.name", "Garfield")
    .findAll();

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