/**
* Constrain the given roles query to those that were assigned to the given authorities.
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @param string|\Illuminate\Database\Eloquent\Model|\Illuminate\Database\Eloquent\Collection $model
* @param array $keys
* @return void
*/
public function constrainWhereAssignedTo($query, $model, array $keys = null)
{
list($model, $keys) = Helper::extractModelAndKeys($model, $keys);
$query->whereExists(function ($query) use($model, $keys) {
$table = $model->getTable();
$key = "{$table}.{$model->getKeyName()}";
$pivot = Models::table('assigned_roles');
$roles = Models::table('roles');
$prefix = Models::prefix();
$query->from($table)->join($pivot, $key, '=', $pivot . '.entity_id')->whereRaw("{$prefix}{$pivot}.role_id = {$prefix}{$roles}.id")->where("{$pivot}.entity_type", $model->getMorphClass())->whereIn($key, $keys);
});
}
/**
* Get a constraint for abilities that have been granted to the given authority.
*
* @param \Illuminate\Database\Eloquent\Model $authority
* @param bool $allowed
* @return \Closure
*/
protected function getAuthorityConstraint(Model $authority, $allowed)
{
return function ($query) use($authority, $allowed) {
$permissions = Models::table('permissions');
$abilities = Models::table('abilities');
$table = $authority->getTable();
$prefix = Models::prefix();
$query->from($table)->join($permissions, $table . '.id', '=', $permissions . '.entity_id')->whereRaw("{$prefix}{$permissions}.ability_id = {$prefix}{$abilities}.id")->where("{$permissions}.entity_type", $authority->getMorphClass())->where("{$permissions}.forbidden", !$allowed)->where("{$table}.{$authority->getKeyName()}", $authority->getKey());
};
}
