/**
* Get all permissions from roles.
*
* @return \Illuminate\Database\Eloquent\Builder
* @throws \Bican\Roles\Exceptions\RoleNotFoundException
*/
public function rolePermissions()
{
if (!($roles = $this->getRoles()->lists('id'))) {
throw new RoleNotFoundException('This user has no role.');
}
return Permission::select(['permissions.*', 'permission_role.created_at as pivot_created_at', 'permission_role.updated_at as pivot_updated_at'])->join('permission_role', 'permission_role.permission_id', '=', 'permissions.id')->join('roles', 'roles.id', '=', 'permission_role.role_id')->whereIn('roles.id', $roles)->orWhere('roles.level', '<', $this->level())->groupBy('permissions.id');
}