Narek :
I'm trying to store students data in array with groups data. For example:
groups
id - 1
name - P1
student_id - 1
id - 2
name - P1
student_id - 2
id - 3
name - P2
student_id - 3
Here I want gate data like this
[
{name: 'P1', students: [{id: 1, name: 'John'}, {id: 2, name: 'Liza'}]},
{name: 'P2', students: [{id: 3, name: 'Bob'}]},
]
Tables:
users
id - bigint unsigned
name - string
...other columns
groups
id - bigint unsigned
name - string
student_id
...other columns
Group.php model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Groups extends Model
{
public $table = "groups";
public $timestamps = false;
public function students(){
return $this->belongsToMany('App\User', 'groups', 'student_id', 'id');
}
}
UserController.php
public function groupsAdmin(){
return view("groups", ["groups" => Groups::with(['students'])->get()]);
}
With this code I'm getting empty students array.
Eissaweb :
its, belongsToMany from users to groups so it should be like this.
you need another table(pivot table), name it group_user.
group_user table:-
user_id
group_id
and completely remove the student_id from grups table.
now go to User model and put this method:
public function groups()
{
return $this->belongsToMany(Group::class);
}
and go to Group Model and put this code
public function users()
{
return $this->belongsToMany(User::class);
}
with this code above, you can access groups from user and users from a group, like so:
$user = User::first();
$groups = $user->groups;
Hope this helps, see the Doc here: Eloquent Many to Many relationship
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