问题
My friendships sql table has column friend_1, friend_2, status
.
I have the following mappings in my (snippet below) User
class. Currently user.getInitiatedFriendships
returns list of Friendships
where value of column friend_1
is equal to ID of the user I'm calling this getter on.
user.getInvitedToFriendships()
returns Friendships
where column friend_2
is equal to ID of this user.
I want to know if it is possible to add something to this line @OneToMany(mappedBy = "invitingUser" +>some check if status=0<)
to also perform a check on column status
and only return those Friendships
where status = 0
?
Thanks
@Entity
@Table(name="users")
public class User {
...
@OneToMany(mappedBy = "invitingUser")
List<Friendship> initiatedFriendships;
@OneToMany(mappedBy = "invitedUser"})
List<Friendship> invitedToFriendships;
....
回答1:
Sorry, I came up for another way to search for it in google and found it. This is the answer:
@OneToMany(mappedBy = "invitingUser")
@Where(clause = "status = 0")
List<Friendship> initiatedFriendships;
来源:https://stackoverflow.com/questions/61235419/jpa-filtering-entities-from-a-mapped-association