Question

我有四个表四个雄辩的模型;用户，个人资料，Habs，粉丝。我正在尝试检索用户关注者的所有用户帖子和用户帖子。我的桌子看起来像这样;

哈布斯

ID
USER_ID
HAB
created_at
的updated_at

用户

ID
用户名
电子邮件
created_at
的updated_at

配置文件

ID
USER_ID
名称
化身
created_at
的updated_at

关注

ID
follower_id
following_id
created_at
的updated_at

我在模特中建立了关系。如何使用Eloquent选择用户发布的用户帖子和帖子。

Answer 1

嗯，我想你可以从这样的事情开始：

class Users extends Eloquent {

    protected $table = 'users';

    public function profile()
    {
        return $this->belongsTo('Profile');
    }

    public function followers()
    {
        return $this->hasMany('Follower', 'follower_id', 'id');
    }

    public function following()
    {
        return $this->hasMany('Follower', 'following_id', 'id');
    }

}

class Hab extends Eloquent {

    protected $table = 'habs';

    public function user()
    {
        return $this->belongsTo('User');
    }

}

class Follower extends Eloquent {

    protected $table = 'followers';

}

class Profile extends Eloquent {

    protected $table = 'profiles';

}

你应该能够：

通常选择用户

$user = User::find(1);

得到它的Habs

$habs = $user->habs;

获得粉丝

$followers = $user->followers;

让谁跟随他/她

$following = $user->following;

获取所有追随者的habs

foreach($user->followers as $follower)
{

    $followerEmail = $follower->email;
    $followerName = $follower->profile->name;
    $followerHabs = $follower->habs;

}

从他/她关注的人那里获取所有habs

foreach($user->following as $following)
{

    $followingEmail = $following->email;
    $followingName = $following->profile->name;
    $followingHabs = $following->habs;

}

Answer 2

这是HasManyThrough的一个很好的用例。它允许您查询远程关系。

https://laravel.com/docs/5.5/eloquent-relationships#has-many-through

Answer 3

您只需要在用户模型上设置关系

// Users Model
public function followings()
{
    return $this->belongsToMany(
        'Users',
        'followers', // Assuming this is the table name
        'follower_id',
        'following_id'
    );
}

public function posts()
{
    return $this->hasMany('Habs');
}

然后获取用户的帖子

$posts = User::with('posts')->find(1)->posts;

并获得以下用户的帖子

$following_users = User::find(1)->followings()->with('posts')->get();

检索用户帖子和朋友发帖

3 个答案: