angular js Filter for ng repeat [закрыто]

I two have scopes with date like this:

$scope.users = [
        {id: 1, username: 'Vasya1', group_id: 1},
        {id: 2, username: 'Vasya2', group_id: 2},
        {id: 3, username: 'Vasya3', group_id: 2},
        {id: 4, username: 'Vasya4'}
    ];
$scope.groups = [
        {id: 1, groupname: 'name1'},
        {id: 2, groupname: 'name2'},
        {id: 3, groupname: 'name3'},
        {id: 4, groupname: 'name'}
    ];

group_id in users scope is foreign key for groups scope.

In my template i need to render each user per group, How can i use filter or something else to handle ng repeat?