DB Query Question

[eluser]danmontgomery[/eluser]
Any particular reason to try and figure out the difference between the checked tags and what's in the db?

Code:

$this->db->where('restaurant_id', $restaurant_id)->delete('tag_restaurant_rel');

$insert = array();
foreach($tags as $tag_id) {
    $insert[] = array('tag_id' => $tag_id, 'restaurant_id' => $restaurant_id);
}

$this->db->insert_batch('tag_restaurant_rel', $insert);