在laravel 5.3中创建新记录时的非法偏移类型

Question

I am trying to create new record using seeder.

This is the code i wrote on seeder file:

RoleUser::create(['role_id'=>$roleId[0],'user_id'=>$user->id]);
PermissionRole::create(['permission_id'=>1,'role_id'=>$roleId[0]]);

This is the error i am getting

[ErrorException] Illegal offset type 

RoleUser model is used for role_user table

Schema::create('role_user', function (Blueprint $table) {
        $table->integer('role_id')->unsigned();
        $table->integer('user_id')->unsigned();
        $table->primary(['role_id','user_id']);
    });

PermissionRole model is used for permission_role table

Schema::create('permission_role', function (Blueprint $table) {
        $table->integer('permission_id')->unsigned();
        $table->integer('role_id')->unsigned();
        $table->primary(['permission_id','role_id']);
    });

RoleUser Model has following code :

    class RoleUser extends Model
{
    protected $table='role_user';
    protected $primaryKey=['role_id','user_id'];
    protected $fillable=['role_id','user_id'];
    public $timestamps=false;
}

Answer 1

Finally figured it out. The problem occurred because i used following code in RoleUser model :

protected $primaryKey=['role_id','user_id'];

Removed this line and now its working fine.