<?php
/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2008-2010 (original work) Deutsche Institut für Internationale Pädagogische Forschung (under the project TAO-TRANSFER);
 *               2009-2012 (update and modification) Public Research Centre Henri Tudor (under the project TAO-SUSTAIN & TAO-DEV);
 *
 */

/**
 * Short description of class tao_helpers_form_elements_template_Template
 *
 * @access public
 * @author Joel Bout, <joel.bout@tudor.lu>
 * @package tao

 */
class tao_helpers_form_elements_template_Template extends tao_helpers_form_elements_Template
{
    // --- ASSOCIATIONS ---


    // --- ATTRIBUTES ---

    // --- OPERATIONS ---

    /**
     * Short description of method feed
     *
     * @access public
     * @author Joel Bout, <joel.bout@tudor.lu>
     * @return mixed
     */
    public function feed()
    {
        
        $values = [];
        $prefix = preg_quote($this->getPrefix(), '/');
        foreach ($_POST as $key => $value) {
            if (preg_match("/^$prefix/", $key)) {
                $values[str_replace($this->getPrefix(), '', $key)] = $value;
            }
        }
        $this->setValues($values);
    }

    /**
     * Short description of method render
     *
     * @access public
     * @author Joel Bout, <joel.bout@tudor.lu>
     * @return string
     */
    public function render()
    {
        $returnValue = (string) '';

        
        if (file_exists($this->path) && is_readable($this->path)) {
            extract($this->variables);
          
            ob_start();
            
            common_Logger::i('including \'' . $this->path . '\' into form', ['TAO']);
            
            include $this->path;
            
            $returnValue = ob_get_contents();
            
            ob_end_clean();
            
            //clean the extracted variables
            foreach ($this->variables as $key => $name) {
                unset($$key);
            }
        }
        
        
        return (string) $returnValue;
    }

    /**
     * Short description of method getEvaluatedValue
     *
     * @access public
     * @author Joel Bout, <joel.bout@tudor.lu>
     * @return mixed
     */
    public function getEvaluatedValue()
    {
        
        return $this->getValues();
    }
}