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<?php
/**
* @package Joomla.Framework
* @subpackage Form
* @copyright Copyright (C) 2005 - 2010 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('JPATH_BASE') or die;
/**
* Form Field class for the Joomla Framework.
*
* @package Joomla.Framework
* @subpackage Form
* @since 1.6
*/
class JFormFieldPrefix extends JFormField
{
/**
* The form field type.
*
* @var string
* @since 1.6
*/
protected $type = 'Prefix';
/**
* Method to get the field input markup.
*
* @return string The field input markup.
* @since 1.6
*/
protected function getInput()
{
// Initialize some field attributes.
$size = $this->element['size'] ? abs((int) $this->element['size']) : 5;
$maxLength = $this->element['maxlength'] ? ' maxlength="'.(int) $this->element['maxlength'].'"' : '';
$class = $this->element['class'] ? ' class="'.(string) $this->element['class'].'"' : '';
$readonly = ((string) $this->element['readonly'] == 'true') ? ' readonly="readonly"' : '';
$disabled = ((string) $this->element['disabled'] == 'true') ? ' disabled="disabled"' : '';
// Make sure somebody doesn't put in a too large prefix size value:
if ($size > 10) {
$size = 10;
}
// If a prefix is already set, use it instead
$session = JFactory::getSession()->get('setup.options', array());
if(empty($session['db_prefix'])){
// Create the random prefix:
$prefix = '';
$chars = range('a', 'z');
$numbers = range(0, 9);
// We want the fist character to be a random letter:
shuffle($chars);
$prefix .= $chars[0];
// Next we combine the numbers and characters to get the other characters:
$symbols = array_merge($numbers, $chars);
shuffle($symbols);
for($i = 0, $j = $size - 1; $i < $j; ++$i) {
$prefix .= $symbols[$i];
}
// Add in the underscore:
$prefix .= '_';
}
else {
$prefix = $session['db_prefix'];
}
// Initialize JavaScript field attributes.
$onchange = $this->element['onchange'] ? ' onchange="'.(string) $this->element['onchange'].'"' : '';
return '<input type="text" name="'.$this->name.'" id="'.$this->id.'"' .
' value="'.htmlspecialchars($prefix, ENT_COMPAT, 'UTF-8').'"' .
$class.$disabled.$readonly.$onchange.$maxLength.'/>';
}
}