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AutoComplete Component
Type: Class	Category: Searching
License: MIT/X Consortium License	Language: PHP
Description: Automatically handles requests for the script.aculo.us autocomplete component (AjaxHelper::autoComplete)

Versions Of This Snippet::

Matt Ezell Snippet ID Download Version Date Posted Author Delete 286 .04 2007-01-17 05:31 Matt Ezell Changes since last version:: Fix to remove duplicates in the list. 138 0.03 2006-06-19 02:25 Nate Abele Changes since last version:: Bug fixes 111 0.02 2006-06-07 00:16 Nate Abele Changes since last version:: Enables restriction of handled models/fields, and mapping of additional query conditions. 110 0.01 2006-06-06 04:27 Nate Abele

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---

Latest Snippet Version: :.04

<?php
/* - Not managed by main SVN - */

/**
 * Automagically handles requests for autocomplete fields
 *
 * CakePHP :  Rapid Development Framework <http://www.cakephp.org/>
 * Copyright (c)	2006, Cake Software Foundation, Inc.
 *								1785 E. Sahara Avenue, Suite 490-204
 *								Las Vegas, Nevada 89104
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright		Copyright (c) 2006, Cake Software Foundation, Inc.
 * @link				http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
 * @package			cake
 * @subpackage		cake.cake.libs.controller.components
 * @since			CakePHP v 0.10.4.1076
 * @version			$Revision: _ $
 * @modifiedby		$LastChangedBy: rbmatt $
 * @lastmodified	$Date: 2007-01-17 00:32:15 -0500 (Wed, 17 Jan 2007) $
 * @license			http://www.opensource.org/licenses/mit-license.php The MIT License
 */

/**
 * Autocomplete Handler
 *
 * @package		cake
 * @subpackage	cake.cake.libs.controller.components
 *
 */
class AutocompleteComponent extends Object {

	var $layout = 'ajax';

	var $enabled = true;

	var $components = array('RequestHandler');

	var $handles = array();

/**
 * Startup
 *
 * @param object A reference to the controller
 * @return null
 */
	function startup(&$controller) {

		if (!$this->enabled || !$this->RequestHandler->isAjax() || !$this->RequestHandler->isPost()) {
			return true;
		}

		$data = $controller->data;
		if (empty($data) || count($data) != 1) {
			return false;
		}

		list($model) = array_keys($data);
		if (!is_array($data[$model]) || count($data[$model]) != 1 || !is_object($controller->{$model})) {
			return false;
		}

		list($field) = array_keys($data[$model]);
		$conditions = array();

		if (!empty($this->handles)) {

			$handled = false;
			$fields = array();

			foreach ($this->handles as $key => $val) {
				if (is_int($key)) {
					$key = $val;
					$val = array();
				}
				if ($key == $model.'.'.$field || $key == $field || $key == $model.'.*') {
					$handled = true;
					$conditions = $val;
					break;
				}
			}
			if (!$handled) {
				return true;
			}
		}

		$base = array($model.'.'.$field => 'LIKE %'.$data[$model][$field].'%');
		if (!empty($conditions)) {
			$conditions = array($base, $conditions);
		} else {
			$conditions = $base;
		}

		$results = $controller->{$model}->findAll($conditions);

		if (is_array($results) && !empty($results)) {
			$elements = array();
			foreach ($results as $rec) {
				if (isset($rec[$model][$field])){
					$elements[]=$rec[$model][$field];
				}
			}
			$elements = array_unique($elements);
			e("<ul>\n");
			foreach($elements as $element){
				e("\t<li>".$element."</li>\n");
			}
			e("</ul>\n");
		}

		exit();
	}
}

?>
		

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