filter.php

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<?php
require_once CORE_PATH . 'libs/filter/filter_interface.php';
 
class Filter
{
    public static function get ($s, $filter, $options=array())
    {
                if(is_string($options)) {
                        $filters = func_get_args();
            unset($filters[0]);
            
            $options = array();
                        foreach($filters as $f) {
                $filter_class = Util::camelcase($f).'Filter';
                if(!class_exists($filter_class, false)) {
                    self::_load_filter($f);
                }
                
                $s = call_user_func(array($filter_class, 'execute'), $s, $options);
            }
                } else {
            $filter_class = Util::camelcase($filter).'Filter';
            if(!class_exists($filter_class, false)) {
                self::_load_filter($filter);
            }
            $s = call_user_func(array($filter_class, 'execute'), $s, $options);
                }
        
        return $s;
    }
    
    public static function get_array($array, $filter, $options=array()) 
    {
        $args = func_get_args();

        foreach($array as $k => $v) {
            $args[0] = $v;
            $array[$k] = call_user_func_array(array('self', 'get'), $args);
        }
        
        return $array;
    }
    
    public static function get_object($object, $filter, $options=array())
    {
        $args = func_get_args();

        foreach($object as $k => $v) {
            $args[0] = $v;
            $object->$k = call_user_func_array(array('self', 'get'), $args);
        }
        
        return $object;
    }
        protected static function _load_filter($filter)
        {
                $file = APP_PATH . "extensions/filters/{$filter}_filter.php";
                if(!is_file($file)) {
                        $file = CORE_PATH . "libs/filter/base_filter/{$filter}_filter.php";
                        if(!is_file($file)) {
                                throw new KumbiaException("Filtro $filter no encontrado");
                        }
                }
        
        include $file;
        }
}