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d889e92774
Select options can be provided using one of three different methods: 1. key=value pairs, one per line, as for a selectbox 2. @filename.php - The file must be in the egw root, and define an array named $options, that has key => value pairs 3. Define the options normally used for the AJAX Select widget (get_rows, get_title, id_field) and it will pull values from the database, as normal. Other options (icon, filter, template, link) can be used regardless of the method used to get the values.
466 lines
14 KiB
PHP
466 lines
14 KiB
PHP
<?php
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/**
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* eGroupWare eTemplate Extension - AJAX Select Widget
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage extensions
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* @link http://www.egroupware.org
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* @author Nathan Gray <nathangray@sourceforge.net>
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* @version $Id$
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*/
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/**
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* AJAX Select Widget
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*
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* Using AJAX, this widget allows a type-ahead find similar to a ComboBox, where as the user enters information,
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* a drop-down box is populated with the n closest matches. If the user clicks on an item in the drop-down, that
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* value is selected.
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* n is the maximum number of results set in the user's preferences.
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* The user is restricted to selecting values in the list.
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* This widget can get data from any function that can provide data to a nextmatch widget.
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* This widget is generating html, so it does not work (without an extra implementation) in an other UI
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*/
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class ajax_select_widget
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{
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var $public_functions = array(
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'pre_process' => True,
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'post_process' => True,
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'ajax_search' => True,
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);
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var $human_name = 'AJAX Select'; // this is the name for the editor
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// Accepted option keys if you're passing in an array to set up the widget
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// Additional options will be passed to the search query
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public static $known_options = array(
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// These ones can be passed in from eTemplate editor in size
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'get_rows',
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'get_title',
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'id_field',
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'template',
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'filter',
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'filter2',
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'link',
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'icon',
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// Pass by code only
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'values',
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);
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// Flag used in id_field to indicate that the key of the record should be used as the value
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const ARRAY_KEY = 'array_key';
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// Array of static values to emulate a combo-box, with no DB lookup
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protected static $static_values = array();
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private $debug = false;
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function ajax_select_widget($ui='')
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{
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switch($ui)
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{
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case '':
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case 'html':
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$this->ui = 'html';
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break;
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default:
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echo "UI='$ui' not implemented";
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}
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return 0;
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}
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/**
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* pre-processing of the extension
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*
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* This function is called before the extension gets rendered
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*
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* @param string $name form-name of the control
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* @param mixed &$value value / existing content, can be modified
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* @param array &$cell array with the widget, can be modified for ui-independent widgets
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* @param array &$readonlys names of widgets as key, to be made readonly
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* @param mixed &$extension_data data the extension can store persisten between pre- and post-process
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* @param object &$tmpl reference to the template we belong too
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* @return boolean true if extra label is allowed, false otherwise
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*/
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function pre_process($name,&$value,&$cell,&$readonlys,&$extension_data,&$tmpl)
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{
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if($this->debug) {
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echo __METHOD__ . '<br />';
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printf("Name:%20s<br />", $name);
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echo 'Value:';
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_debug_array($value);
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echo 'Cell:';
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_debug_array($cell);
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echo 'Readonlys:';
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_debug_array($readonlys);
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echo 'Extension_data:';
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_debug_array($extension_data);
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}
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// Get Options
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$options = array();
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if(!is_array($cell['size'])) {
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list(
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$options['get_rows'],
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$options['get_title'],
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$options['id_field'],
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$options['template'],
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$options['filter'],
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$options['filter2'],
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$options['link'],
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$options['icon']
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) = explode(',', $cell['size']);
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} else {
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$options = $cell['size'];
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}
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if(is_array($value)) {
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$options = array_merge($options, $value);
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}
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if(!$options['template']) {
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$options['template'] = 'etemplate.ajax_select_widget.row';
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}
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if(array_key_exists('values', $options)) {
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if($options['values']) {
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self::$static_values[$name] = $options['values'];
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}
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unset($options['values']);
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}
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$onchange = ($cell['onchange'] ? $cell['onchange'] : 'false');
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// Set current value
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if(!is_array($value)) {
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$current_value = $value;
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} elseif($value[$options['id_field']]) {
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$current_value = $value[$options['id_field']];
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}
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$extension_data['old_value'] = $value;
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list($title_app, $title_class, $title_method) = explode('.', $options['get_title']);
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if($title_app && $title_class) {
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if (is_object($GLOBALS[$title_class])) { // use existing instance (put there by a previous CreateObject)
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$title_obj =& $GLOBALS[$title_class];
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} else {
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$title_obj =& CreateObject($title_app . '.' . $title_class);
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}
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}
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if(!is_object($title_obj) || !method_exists($title_obj,$title_method)) {
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echo "$entry_app.$entry_class.$entry_method is not a valid method for getting the title";
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} elseif($current_value) {
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if($title_method == 'array_title' && $title_class == __CLASS__) {
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$title = self::$title_method($current_value, $name);
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} else {
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$title = $title_obj->$title_method($current_value);
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}
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}
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// Check get_rows method
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list($get_rows_app, $get_rows_class, $get_rows_method) = explode('.', $options['get_rows']);
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if($get_rows_app && $get_rows_class) {
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if (is_object($GLOBALS[$get_rows_class])) { // use existing instance (put there by a previous CreateObject)
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$get_rows_obj =& $GLOBALS[$get_rows_class];
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} else {
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$get_rows_obj =& CreateObject($get_rows_app . '.' . $get_rows_class);
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}
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if(!is_object($get_rows_obj) || !method_exists($get_rows_obj, $get_rows_method)) {
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echo "$get_rows_app.$get_rows_class.$get_rows_method is not a valid method for getting the rows";
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}
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}
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// Set up widget
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$cell['type'] = 'template';
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$cell['size'] = $cell['name'];
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$value = array('value' => $current_value, 'search' => $title);
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$widget = new etemplate('etemplate.ajax_select_widget');
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$widget->no_onclick = True;
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// Link if readonly & link is set
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$search =& $widget->get_widget_by_name('search');
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if(($cell['readonly'] || $readonlys['search']) && $options['link']) {
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$cell['readonly'] = false;
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if(!is_array($readonlys)) {
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$readonlys = array('search' => true);
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} else {
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$readonlys['search'] = true;
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}
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$search['type'] = 'label';
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$search['no_lang'] = 1;
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$search['size'] = ',' . $options['link'];
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$extension_data['readonly'] = true;
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} else {
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$search['type'] = 'text';
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$search['size'] = '';
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if($current_value == '' && $options['id_field'] == self::ARRAY_KEY) {
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$search['blur'] = lang('Search...');
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}
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}
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// Icon
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$icon =& $widget->get_widget_by_path('/0/1A');
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$icon['name'] = $options['icon'];
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$cell['obj'] = &$widget;
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// Save static values, if set
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if(self::$static_values[$name]) {
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$extension_data['values'] = self::$static_values[$name];
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}
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// Save options for post_processing
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$extension_data['options'] = $options;
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$extension_data['needed'] = $cell['needed'];
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// xajax
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$GLOBALS['egw_info']['flags']['include_xajax'] = True;
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// JavaScript
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// converter doesn't handle numeric well
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foreach($options as $key => &$value) {
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if(is_numeric($value)) {
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$value = (string)$value;
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}
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}
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$options = $GLOBALS['egw']->js->convert_phparray_jsarray("options['$name']", $options, true);
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$GLOBALS['egw']->js->set_onload("if(!options) {
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var options = new Object();
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}\n
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$options;\n
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ajax_select_widget_setup('$name', '$onchange', options['$name'], '" . $GLOBALS['egw_info']['flags']['currentapp'] . "');
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");
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$GLOBALS['egw']->js->validate_file('', 'ajax_select', 'etemplate');
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return True; // no extra label
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}
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function post_process($name,&$value,&$extension_data,&$loop,&$tmpl,$value_in)
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{
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//echo "<p>ajax_select_widget.post_process: $name = "; _debug_array($value_in);_debug_array($extension_data);
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if(!is_array($value_in)) {
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$value_in = $extension_data['old_value'];
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}
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// They typed something in, but didn't choose a result
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if(!$value_in['value'] && $value_in['search']) {
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list($get_rows_app, $get_rows_class, $get_rows_method) = explode('.', $extension_data['options']['get_rows']);
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if($get_rows_app && $get_rows_class) {
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if (is_object($GLOBALS[$get_rows_class])) { // use existing instance (put there by a previous CreateObject)
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$get_rows_obj =& $GLOBALS[$get_rows_class];
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} else {
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$get_rows_obj =& CreateObject($get_rows_app . '.' . $get_rows_class);
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}
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if(!is_object($get_rows_obj) || !method_exists($get_rows_obj, $get_rows_method)) {
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echo "$get_rows_app.$get_rows_class.$get_rows_method is not a valid method for getting the rows";
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} else {
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$query = array_merge($extension_data['options'], $value_in);
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$count = $get_rows_obj->$get_rows_method($query, $results);
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if($count == 1) {
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$value = $results[0][$extension_data['options']['id_field']];
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return true;
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} elseif ($count > 1) {
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etemplate::set_validation_error($name,lang("More than 1 match for '%1'",$value_in['search']));
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$loop = true;
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return false;
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} else {
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$value = $value_in['search'];
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return true;
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}
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}
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}
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} elseif ($extension_data['readonly']) {
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$value = $extension_data['old_value'];
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return true;
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} elseif ($value_in['search'] == '') {
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// They're trying to clear the form
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$value = null;
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// True if not needed, false if needed and they gave no value
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$return = !($extension_data['needed'] && trim($value_in['value']) == '');
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if(!$return) {
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$value = $extension_data['old_value'];
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etemplate::set_validation_error($name,lang('Required'));
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$loop = true;
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}
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if($this->debug && $loop) {
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echo 'Looping...<br />Returning ' . $return . '<br />';
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}
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return $return;
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} else {
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if (stripos($extension_data['options']['id_field'], ";")) {
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$expected_fields = array_flip(explode(";", $extension_data['options']['id_field']));
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$fields_n_values = explode(";", $value_in['value']);
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foreach ($fields_n_values as $field_n_value) {
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list($myfield, $myvalue) = explode(":", $field_n_value);
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if (array_key_exists($myfield, $expected_fields)) {
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$value_in[$myfield] = $myvalue;
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}
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}
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$value = $value_in;
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} else {
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$value = $value_in['value'];
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}
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return true;
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}
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}
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function ajax_search($id, $value, $set_id, $query, $etemplate_id) {
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$base_id = substr($id, 0, strrpos($id, '['));
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$result_id = ($set_id ? $set_id : $base_id . '[results]');
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$response = new xajaxResponse();
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if($query['get_rows']) {
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list($app, $class, $method) = explode('.', $query['get_rows']);
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$this->bo = CreateObject($app . '.' . $class);
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unset($query['get_rows']);
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} else {
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return $response->getXML();
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}
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// Expand lists
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foreach($query as $key => &$row) {
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if($row && strpos($row, ',')) {
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$query[$key] = explode(',', $row);
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}
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// sometimes it sends 'null' (not null)
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if($row == 'null') {
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unset($query[$key]);
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} elseif (is_string($row) && strtolower($row) == 'false') {
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$row = false;
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}
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}
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$query['search'] = $value;
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if($query['id_field'] == self::ARRAY_KEY) {
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// Pass base_id so we can get the right values
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$query['field_name'] = $base_id;
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// Check for a provided list of values
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if($request = etemplate_request::read($etemplate_id)) {
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$extension_data = $request->extension_data[$base_id];
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if(is_array($extension_data) && $extension_data['values']) {
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self::$static_values[$base_id] = $extension_data['values'];
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}
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}
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}
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$result_list = array();
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$readonlys = array();
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if(is_object($this->bo)) {
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$count = $this->bo->$method($query, $result_list, $readonlys);
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}
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if(is_array($count)) {
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$count = count($result_list);
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}
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$response->addScript("remove_ajax_results('$result_id')");
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if($count > 0) {
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$response->addScript("add_ajax_result('$result_id', '', '', '" . lang('Select') ."');");
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$count = 0;
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if(!$query['template'] || $query['template'] == 'etemplate.ajax_select_widget.row') {
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$query['template'] = 'etemplate.ajax_select_widget.row';
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}
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foreach($result_list as $key => &$row) {
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if(!is_array($row)) {
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if($query['id_field'] == self::ARRAY_KEY) {
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if(!is_array($row)) {
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// Restructure $row to be an array
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$row = array(
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self::ARRAY_KEY => $key,
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'id_field' => $key,
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'title' => $row
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);
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}
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} else {
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continue;
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}
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}
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//check for multiple id's
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//this if control statement is to determine if there are multiple ids in the ID FIELD of the Ajax Widget
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if(stristr($query['id_field'], ';') != FALSE) {
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$id_field_keys = explode(';', $query['id_field']);
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if($query['get_title']) {
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//the title will always be created using the first ID FIELD
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if($row[$id_field_keys[0]]) {
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$row['title'] = ExecMethod($query['get_title'], $row[$id_field_keys[0]]);
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}
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}
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foreach($id_field_keys as $value) {
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$id_field_keys_values[] = $value.':'.$row[$value];
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}
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$row['id_field'] = implode(';',$id_field_keys_values);
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unset($id_field_keys_values);
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} else {
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if($query['id_field'] && $query['get_title']) {
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if($row[$query['id_field']] && $query['id_field'] != self::ARRAY_KEY) {
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$row['title'] = ExecMethod($query['get_title'], $row[$query['id_field']]);
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}
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}
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if($query['id_field'] != self::ARRAY_KEY) {
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$row['id_field'] = $row[$query['id_field']];
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}
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}
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// If we use htmlspecialchars, it causes issues with mixed quotes. addslashes() seems to handle it.
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$row['id_field'] = addslashes($row['id_field']);
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$data = ($query['nextmatch_template']) ? array(1=>$row) : $row;
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$widget =& CreateObject('etemplate.etemplate', $query['template']);
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$html = addslashes(str_replace("\n", '', $widget->show($data, '', $readonlys)));
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$row['title'] = addslashes($row['title']);
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$response->addScript("add_ajax_result('$result_id', '${row['id_field']}', '" . $row['title'] . "', '$html');");
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$count++;
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if($count > $GLOBALS['egw_info']['user']['preferences']['common']['maxmatchs']) {
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$response->addScript("add_ajax_result('$result_id', '', '', '" . lang("%1 more...", (count($result_list) - $count)) . "');");
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break;
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}
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}
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} else {
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$response->addScript("add_ajax_result('$result_id', '', '', '" . lang('No matches found') ."');");
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}
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return $response->getXML();
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}
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/**
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* Use a simple array to get the title
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* Values should be passed in to the widget as an array in $size['values']
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*/
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protected function array_title($id, $name) {
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if(trim($id) == '') {
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return lang('Search');
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}
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return self::$static_values[$name][$id];
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}
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/**
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* Use a simple array to get the results
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* Values should be passed in to the widget as an array in $size['values']
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*/
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protected function array_rows(&$query, &$result) {
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foreach( self::$static_values[$query['field_name']] as $key => $value) {
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if($query['search'] && stripos($value, $query['search']) === false) continue;
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$result[$key] = $value;
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}
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$count = count($result);
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$result = array_slice($result, $query['start'], $query['num_rows']);
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return $count;
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}
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}
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