mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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134744b5d6
[1613] Fixing Bake (Ticket #5) [1612] Adding new file header [1611] Starting to fix Bake (Ticket #5) [1610] Adding patch for Ticket #63 [1609] Fixing ticket #13 [1608] Fix so only sub classes that have a __destruct() implemented will have it registered [1607] Fixing ticket #130 [1606] Fix for Ticket #190 [1605] Fixing ticket #136 [1604] Fixed would throw error if a action was camelCased in the url or in requestAction() [1603] fixed a few typos in home view git-svn-id: https://svn.cakephp.org/repo/trunk/cake@1614 3807eeeb-6ff5-0310-8944-8be069107fe0
546 lines
No EOL
19 KiB
PHP
546 lines
No EOL
19 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Helper for AJAX operations.
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*
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* Helps doing AJAX using the Prototype library.
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2005, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright (c) 2005, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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* @since CakePHP v 0.10.0.1076
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* AjaxHelper helper library.
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*
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* Helps doing AJAX using the Prototype library.
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*
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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* @since CakePHP v 0.10.0.1076
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*
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*/
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class AjaxHelper extends Helper
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{
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/**
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* Included helpers.
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*
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* @var array
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*/
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var $helpers = array('Html', 'Javascript');
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/**
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* Enter description here...
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*
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* @var array
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*/
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var $callbacks = array('uninitialized', 'loading', 'loaded', 'interactive', 'complete');
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/**
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* Enter description here...
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*
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* @var array
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*/
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var $ajaxOptions = array('method','position','form','parameters','evalScripts', 'asynchronous', 'onComplete', 'onUninitialized', 'onLoading', 'onLoaded', 'onInteractive');
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/**
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* Enter description here...
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*
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* @var array
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*/
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var $dragOptions = array('handle', 'revert', 'constraint', 'change');
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/**
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* Enter description here...
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*
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* @var array
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*/
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var $dropOptions = array('accept', 'containment', 'overlap', 'greedy', 'hoverclass', 'onHover', 'onDrop');
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/**
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* Enter description here...
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*
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* @var array
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*/
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var $sortOptions = array('tag', 'only', 'overlap', 'constraint', 'containment', 'handle', 'hoverClass', 'ghosting', 'dropOnEmpty', 'onUpdate', 'onChange');
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/**
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* Returns link to remote action
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*
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* Returns a link to a remote action defined by <i>options[url]</i>
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* (using the urlFor format) that's called in the background using
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* XMLHttpRequest. The result of that request can then be inserted into a
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* DOM object whose id can be specified with <i>options[update]</i>.
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* Usually, the result would be a partial prepared by the controller with
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* either renderPartial or renderPartialCollection.
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*
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* Examples:
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* <code>
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* linkToRemote("Delete this post",
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* array("update" => "posts", "url" => "delete/{$postid->id}"));
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* linkToRemote(imageTag("refresh"),
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* array("update" => "emails", "url" => "list_emails" ));
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* </code>
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*
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* By default, these remote requests are processed asynchronous during
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* which various callbacks can be triggered (for progress indicators and
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* the likes).
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*
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* Example:
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* <code>
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* linkToRemote (word,
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* array("url" => "undo", "n" => word_counter),
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* array("complete" => "undoRequestCompleted(request)"));
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* </code>
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*
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* The callbacks that may be specified are:
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*
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* - <i>loading</i>:: Called when the remote document is being
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* loaded with data by the browser.
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* - <i>loaded</i>:: Called when the browser has finished loading
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* the remote document.
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* - <i>interactive</i>:: Called when the user can interact with the
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* remote document, even though it has not
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* finished loading.
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* - <i>complete</i>:: Called when the XMLHttpRequest is complete.
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*
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* If you for some reason or another need synchronous processing (that'll
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* block the browser while the request is happening), you can specify
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* <i>options[type] = synchronous</i>.
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*
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* You can customize further browser side call logic by passing
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* in Javascript code snippets via some optional parameters. In
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* their order of use these are:
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*
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* - <i>confirm</i>:: Adds confirmation dialog.
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* -<i>condition</i>:: Perform remote request conditionally
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* by this expression. Use this to
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* describe browser-side conditions when
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* request should not be initiated.
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* - <i>before</i>:: Called before request is initiated.
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* - <i>after</i>:: Called immediately after request was
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* initiated and before <i>loading</i>.
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*
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* @param string $title Title of link
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* @param array $options Options for JavaScript function
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* @return string HTML code for link to remote action
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*/
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function linkToRemote ($title, $options = null, $html_options = null)
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{
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$href = (!empty($options['fallback'])) ? $options['fallback'] : '#';
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if(isset($html_options['id']))
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{
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return $this->Html->link($title, $href, $html_options) . $this->Javascript->event("$('{$html_options['id']}')", "click", "function() {" . $this->remoteFunction($options) . "; return true; }");
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}
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else
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{
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$html_options['onclick'] = $this->remoteFunction($options) . "; return false;";
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return $this->Html->link($title, $href, $html_options);
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}
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}
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/**
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* Creates JavaScript function for remote AJAX call
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*
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* This function creates the javascript needed to make a remote call
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* it is primarily used as a helper for linkToRemote.
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*
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* @see linkToRemote() for docs on options parameter.
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*
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* @param array $options options for javascript
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* @return string html code for link to remote action
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*/
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function remoteFunction ($options = null)
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{
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$javascript_options = $this->_optionsForAjax($options);
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$func = isset($options['update']) ? "new Ajax.Updater('{$options['update']}'," : "new Ajax.Request(";
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$func .= "'" . $this->Html->url(isset($options['url']) ? $options['url'] : "") . "'";
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$func .= "$javascript_options)";
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if (isset($options['before']))
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{
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$func = "{$options['before']}; $func";
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}
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if (isset($options['after']))
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{
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$func = "$func; {$options['after']};";
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}
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if (isset($options['condition']))
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{
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$func = "if ({$options['condition']}) { $func; }";
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}
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if (isset($options['confirm']))
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{
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$func = "if (confirm('" . $this->Javascript->escapeScript($options['confirm']) . "')) { $func; } else { return false; }";
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}
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return $func;
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}
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/**
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* Periodically call remote url via AJAX.
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*
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* Periodically calls the specified url (<i>options[url]</i>) every <i>options[frequency]</i> seconds (default is 10).
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* Usually used to update a specified div (<i>options[update]</i>) with the results of the remote call.
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* The options for specifying the target with url and defining callbacks is the same as linkToRemote.
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*
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* @param array $options Callback options
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* @return string Javascript code
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*/
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function remoteTimer ($options = null)
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{
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$frequency = (isset($options['frequency']))? $options['frequency'] : 10;
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$code = "new PeriodicalExecuter(function() {" . $this->remote_function($options) . "}, $frequency)";
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return $this->Javascript->codeBlock($code);
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}
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/**
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* Returns form tag that will submit using Ajax.
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*
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* Returns a form tag that will submit using XMLHttpRequest in the background instead of the regular
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* reloading POST arrangement. Even though it's using Javascript to serialize the form elements, the form submission
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* will work just like a regular submission as viewed by the receiving side (all elements available in params).
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* The options for specifying the target with :url and defining callbacks is the same as link_to_remote.
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*
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* @param string $id Form id
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* @param array $options Callback options
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* @return string JavaScript code
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*/
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function form($id, $options = null, $html_options = array())
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{
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$html_options['id'] = $id;
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return $this->Html->formTag(null, "post", $html_options) .
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$this->Javascript->event("$('$id')", "submit", "function(){" .
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$this->remoteFunction($options) . "; return false;}");
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}
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/**
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* Returns a button input tag that will submit using Ajax
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*
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* Returns a button input tag that will submit form using XMLHttpRequest in the background instead of regular
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* reloading POST arrangement. <i>options</i> argument is the same as in <i>form_remote_tag</i>
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*
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* @param string $name Input button name
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* @param string $value Input button value
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* @param array $options Callback options
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* @return string Ajaxed input button
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*/
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function submit ($name, $value, $options = null)
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{
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$options['with'] = 'Form.serialize(this.form)';
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$options['html']['type'] = 'button';
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$options['html']['onclick'] = $this->remoteFunction($options) . "; return false;";
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$options['html']['name'] = $name;
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$options['html']['value'] = $value;
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return $this->Html->tag("input", $options['html'], false);
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}
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/**
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* Observe field and call ajax on change.
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*
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* Observes the field with the DOM ID specified by <i>field_id</i> and makes
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* an Ajax when its contents have changed.
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*
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* Required +options+ are:
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* - <i>frequency</i>:: The frequency (in seconds) at which changes to
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* this field will be detected.
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* - <i>url</i>:: @see urlFor() -style options for the action to call
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* when the field has changed.
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*
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* Additional options are:
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* - <i>update</i>:: Specifies the DOM ID of the element whose
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* innerHTML should be updated with the
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* XMLHttpRequest response text.
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* - <i>with</i>:: A Javascript expression specifying the
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* parameters for the XMLHttpRequest. This defaults
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* to Form.Element.serialize('$field_id'), which can be
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* accessed from params['form']['field_id'].
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*
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* Additionally, you may specify any of the options documented in
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* @see linkToRemote().
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*
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* @param string $field_id DOM ID of field to observe
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* @param array $options ajax options
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* @return string ajax script
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*/
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function observeField ($field_id, $options = null)
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{
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if (!isset($options['with']))
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{
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$options['with'] = "Form.Element.serialize('$field_id')";
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}
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return $this->Javascript->codeBlock($this->_buildObserver('Form.Element.Observer', $field_id, $options));
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}
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/**
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* Observe entire form and call ajax on change.
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*
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* Like @see observeField(), but operates on an entire form identified by the
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* DOM ID <b>form_id</b>. <b>options</b> are the same as <b>observe_field</b>, except
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* the default value of the <i>with</i> option evaluates to the
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* serialized (request string) value of the form.
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*
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* @param string $field_id DOM ID of field to observe
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* @param array $options ajax options
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* @return string ajax script
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*/
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function observeForm ($field_id, $options = array())
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{
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if (!isset($options['with']))
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{
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$options['with'] = 'Form.serialize(this.form)';
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}
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return $this->Javascript->codeBlock($this->_buildObserver('Form.Observer', $field_id, $options));
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}
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/**
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* Create a text field with Autocomplete.
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*
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* Creates an autocomplete field with the given ID and options.
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*
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* options['with'] defaults to "Form.Element.serialize('$field_id')",
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* but can be any valid javascript expression defining the
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*
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* @param string $field_id DOM ID of field to observe
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* @param array $options ajax options
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* @return string ajax script
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*/
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function autoComplete ($field, $url = "", $options = array())
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{
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if (!isset($options['id']))
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{
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$options['id'] = str_replace("/", "_", $field);
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}
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$htmlOptions = $options;
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$ajaxOptions = array('with', 'asynchronous', 'synchronous', 'method', 'position', 'form');
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$htmlOptions['autocomplete'] = "off";
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foreach($ajaxOptions as $key)
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{
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if(isset($options[$key]))
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{
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$ajaxOptions[$key] = $options[$key];
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}
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else
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{
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unset($ajaxOptions[$key]);
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}
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}
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$divOptions = array('id' => $options['id'] . "_autoComplete", 'class' => "auto_complete");
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return $this->Html->input($field, $htmlOptions) .
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$this->Html->tag("div", $divOptions, true) . "</div>" .
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$this->Javascript->codeBlock("new Ajax.Autocompleter('" . $options['id'] . "', '" .
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$divOptions['id'] . "', '" . $this->Html->url($url) . "', " . $this->_optionsForAjax($ajaxOptions) . ");");
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}
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function drag($id, $options = array())
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{
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$options = $this->_optionsForDraggable($options);
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return $this->Javascript->codeBlock("new Draggable('$id'$options);");
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}
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/**
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* Enter description here...
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*
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* @param array $options
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* @return array
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*/
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function _optionsForDraggable ($options)
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{
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$options = $this->_optionsToString($options, array('handle','constraint'));
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return $this->_buildOptions($options, $this->dragOptions);
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}
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/**
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* For a reference on the options for this function, check out
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* http://wiki.script.aculo.us/scriptaculous/show/Droppables.add
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*
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*/
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function drop($id, $options = array())
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{
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$options = $this->_optionsForDroppable($options);
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return $this->Javascript->codeBlock("Droppables.add('$id'$options);");
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}
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function _optionsForDroppable ($options)
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{
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$options = $this->_optionsToString($options, array('accept','overlap','hoverclass'));
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return $this->_buildOptions($options, $this->dropOptions);
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}
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function dropRemote($id, $options = array(), $ajaxOptions = array())
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{
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$options['onDrop'] = "function(element){" . $this->remoteFunction($ajaxOptions) . "}";
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}
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/**
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* Makes a list or group of floated objects sortable.
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*
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*
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* @param string $id DOM ID of parent
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* @param array $options Array of options to control sort.http://wiki.script.aculo.us/scriptaculous/show/Sortable.create
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* @link http://wiki.script.aculo.us/scriptaculous/show/Sortable.create
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*/
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function sortable($id, $options = array())
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{
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if (!empty($options['url']))
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{
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$options['with'] = "Sortable.serialize('$id')";
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$options['onUpdate'] = 'function(sortable){' . $this->remoteFunction($options).'}';
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}
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$options = $this->_optionsForSortable($options);
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return $this->Javascript->codeBlock("Sortable.create('$id'$options);");
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}
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function _optionsForSortable ($options)
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{
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$options = $this->_optionsToString($options, array('handle','tag','constraint','ghosting'));
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return $this->_buildOptions($options, $this->sortOptions);
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}
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/**
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* Javascript helper function (private).
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*
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*/
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function _optionsForAjax ($options = array())
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{
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$js_options = $this->_buildCallbacks($options);
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$js_options['asynchronous'] = 'true';
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$options = $this->_optionsToString($options, array('method'));
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foreach($options as $key => $value)
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{
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switch($key)
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{
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case 'type':
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$js_options['asynchronous'] = ($value == 'synchronous') ? 'false' : 'true';
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break;
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case 'position':
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$js_options['insertion'] = "Insertion." . Inflector::camelize($options['position']);
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break;
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case 'with':
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$js_options['parameters'] = $options['with'];
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break;
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case 'form':
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$js_options['parameters'] = 'Form.serialize(this)';
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break;
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}
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}
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return $this->_buildOptions($js_options, $this->ajaxOptions);
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}
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function _buildOptions ($options, $acceptable) {
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if(is_array($options))
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{
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$out = array();
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foreach ($options as $k => $v)
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{
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if(in_array($k, $acceptable))
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{
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$out[] = "$k:$v";
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}
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}
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$out = join(', ', $out);
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$out = ', {' . $out . '}';
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return $out;
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}
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else
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{
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return false;
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}
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}
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/**
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* Enter description here... Return JavaScript text for ...
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*
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* @param string $klass Name of JavaScript class
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* @param string $name
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* @param array $options
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* @return string Formatted JavaScript
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*/
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function _buildObserver ($klass, $name, $options=null)
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{
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if(!isset($options['with']) && isset($options['update']))
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{
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$options['with'] = 'value';
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}
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$callback = $this->remoteFunction($options);
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$javascript = "new $klass('$name', ";
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$javascript .= (isset($options['frequency']) ? $options['frequency'] : 2) . ", function(element, value) {";
|
|
$javascript .= "$callback})";
|
|
return $javascript;
|
|
}
|
|
|
|
/**
|
|
* Enter description here... Return JavaScript text for ...
|
|
*
|
|
* @param array $options
|
|
* @return array
|
|
*/
|
|
function _buildCallbacks($options)
|
|
{
|
|
$callbacks = array();
|
|
foreach($this->callbacks as $callback)
|
|
{
|
|
if(isset($options[$callback]))
|
|
{
|
|
$name = 'on' . ucfirst($callback);
|
|
$code = $options[$callback];
|
|
$callbacks[$name] = "function(request){".$code."}";
|
|
}
|
|
}
|
|
return $callbacks;
|
|
}
|
|
|
|
function _optionsToString ($options, $stringOpts = array())
|
|
{
|
|
foreach ($stringOpts as $option)
|
|
{
|
|
if(isset($options[$option]) && !$options[$option][0] != "'")
|
|
{
|
|
$options[$option] = "'{$options[$option]}'";
|
|
}
|
|
}
|
|
return $options;
|
|
}
|
|
|
|
}
|
|
?>
|