Laravel relationship between two tables with two foreign keys - php

Question

Hey how can I make relationships between two table.
Users: id, email
Notification: id, user_id(id of the logged user), client_id(id of sender)
I would like make relationship between users and notifications by user_id and client_id.
Then I will can get all notifications assigned to logged user, and get email of sender users.
I made that:
public function notifications_with_client() {
return $this->hasManyThrough('App\Models\User', 'App\Models\Notification', 'user_id', 'id', 'client_id');
}
But when I using query i got good notifications but with wrong email.
I got email from ralationship id(from users table) == id(from notifications table)
My query
$column = 'notifications_with_client';
$value[1] = ['email', 'notifications.id', 'client_id'];
$query->with([$column => function($query) use ($value) {
$query->select($value[1]);
}]);
Someone know what I do wrong?

Answer 1

You can try it by defining the following relations:
User Model
public function notifications()
{
return $this->hasMany('App\Models\Notification');
}
Notification Model
public function to()
{
return $this->belongsTo('App\Models\User', 'user_id');
}
public function from()
{
return $this->belongsTo('App\Models\User', 'client_id');
}
And then you can query it as:
$notifications = auth()->user()->notifications()->with('from')->get();
Or if you just want email then query it as:
$notifications = auth()->user()
->notifications()
->with(['from' => function($q) {
$q->select('email');
}])
->get();

Answer 2

public function user()
{
return $this->belongsTo(Users::class, 'user_id');
}
public function client()
{
return $this->belongsTo(Users::class, 'client_id');
}
With this code in your Notification Model you can get the logged user with
$this->user(); // $notification->user();
and the sender with
$this->client(); //$notification->client();

Answer 3

You cannot use $this->hasManyThrough(). It use for a different reason
You can use $this->belongsTo() like this.
class User extends BaseModel
{
public function user()
{
return $this->belongsTo(Notification::class, 'user_id');
}
public function client()
{
return $this->belongsTo(Notification::class, 'client_id');
}
}
Then you can query like.
User::with(['user']);
or
User::with(['client']);