<?php

class Model_Tag extends \Orm\Model
{
    protected static $_properties = array(
        'id',
        'title',
        'slug',
        'created_at',
        'updated_at',
    );

    protected static $_observers = array(
        'Orm\Observer_CreatedAt' => array(
            'events' => array('before_insert'),
            'mysql_timestamp' => false,
        ),
        'Orm\Observer_UpdatedAt' => array(
            'events' => array('before_update'),
            'mysql_timestamp' => false,
        ),
        'Orm\\Observer_Slug' => array(
            'source' => 'title',
            'property' => 'slug',
        ),
    );

    protected static $_many_many = array('filmes');

    protected static $_table_name = 'tags';

    public static function save_tag()
    {
        $data = Input::post('data');
        $val = static::validate_tag();

        if ($val->run()) {

            if ($data['id']) {
                $tag = static::find($data['id'])->set($data);
            } else {
                $tag = static::forge($data);
            }

            $tag->save(); return array($tag, true, null);
        } else {
            return array(static::forge($data), false, $val->error());
        }
    }

    public static function validate_tag()
    {
        $val = Validation::forge();

        $val->add_field('data[title]', 'Título', 'required');
        $val->set_message('required', 'O campo :label é obrigatório.');

        return $val;
    }
}