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613 lines
19 KiB
613 lines
19 KiB
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4.0 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Adam Daniel <adaniel1@eesus.jnj.com> |
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// | Bertrand Mansion <bmansion@mamasam.com> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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require_once('HTML/QuickForm/element.php');
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/**
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* Class to dynamically create an HTML SELECT
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*
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* @author Adam Daniel <adaniel1@eesus.jnj.com>
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* @author Bertrand Mansion <bmansion@mamasam.com>
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* @version 1.0
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* @since PHP4.04pl1
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* @access public
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*/
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class HTML_QuickForm_select extends HTML_QuickForm_element {
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// {{{ properties
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/**
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* Contains the select options
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*
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* @var array
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* @since 1.0
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* @access private
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*/
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var $_options = array();
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/**
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* Default values of the SELECT
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*
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* @var string
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* @since 1.0
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* @access private
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*/
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var $_values = null;
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// }}}
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// {{{ constructor
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/**
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* Class constructor
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*
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* @param string Select name attribute
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* @param mixed Label(s) for the select
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* @param mixed Data to be used to populate options
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* @param mixed Either a typical HTML attribute string or an associative array
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* @since 1.0
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* @access public
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* @return void
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*/
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public function __construct($elementName=null, $elementLabel=null, $options=null, $attributes=null) {
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parent::__construct($elementName, $elementLabel, $attributes);
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$this->_persistantFreeze = true;
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$this->_type = 'select';
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if (isset($options)) {
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$this->load($options);
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}
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} //end constructor
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/**
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* Old syntax of class constructor. Deprecated in PHP7.
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*
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* @deprecated since Moodle 3.1
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*/
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public function HTML_QuickForm_select($elementName=null, $elementLabel=null, $options=null, $attributes=null) {
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debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
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self::__construct($elementName, $elementLabel, $attributes);
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}
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// }}}
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// {{{ apiVersion()
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/**
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* Returns the current API version
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*
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* @since 1.0
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* @access public
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* @return double
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*/
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function apiVersion()
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{
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return 2.3;
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} //end func apiVersion
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// }}}
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// {{{ setSelected()
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/**
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* Sets the default values of the select box
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*
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* @param mixed $values Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return void
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*/
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function setSelected($values)
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{
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if (is_string($values) && $this->getMultiple()) {
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$values = preg_split("/[ ]?,[ ]?/", $values);
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}
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if (is_array($values)) {
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$this->_values = array_values($values);
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} else {
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$this->_values = array($values);
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}
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} //end func setSelected
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// }}}
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// {{{ getSelected()
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/**
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* Returns an array of the selected values
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*
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* @since 1.0
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* @access public
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* @return array of selected values
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*/
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function getSelected()
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{
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return $this->_values;
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} // end func getSelected
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// }}}
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// {{{ setName()
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/**
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* Sets the input field name
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*
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* @param string $name Input field name attribute
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* @since 1.0
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* @access public
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* @return void
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*/
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function setName($name)
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{
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$this->updateAttributes(array('name' => $name));
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} //end func setName
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// }}}
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// {{{ getName()
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/**
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* Returns the element name
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getName()
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{
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return $this->getAttribute('name');
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} //end func getName
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// }}}
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// {{{ getPrivateName()
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/**
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* Returns the element name (possibly with brackets appended)
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getPrivateName()
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{
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if ($this->getAttribute('multiple')) {
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return $this->getName() . '[]';
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} else {
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return $this->getName();
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}
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} //end func getPrivateName
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// }}}
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// {{{ setValue()
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/**
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* Sets the value of the form element
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*
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* @param mixed $values Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return void
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*/
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function setValue($value)
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{
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$this->setSelected($value);
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} // end func setValue
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// }}}
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// {{{ getValue()
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/**
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* Returns an array of the selected values
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*
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* @since 1.0
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* @access public
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* @return array of selected values
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*/
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function getValue()
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{
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return $this->_values;
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} // end func getValue
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// }}}
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// {{{ setSize()
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/**
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* Sets the select field size, only applies to 'multiple' selects
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*
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* @param int $size Size of select field
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* @since 1.0
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* @access public
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* @return void
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*/
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function setSize($size)
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{
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$this->updateAttributes(array('size' => $size));
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} //end func setSize
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// }}}
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// {{{ getSize()
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/**
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* Returns the select field size
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*
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* @since 1.0
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* @access public
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* @return int
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*/
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function getSize()
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{
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return $this->getAttribute('size');
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} //end func getSize
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// }}}
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// {{{ setMultiple()
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/**
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* Sets the select mutiple attribute
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*
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* @param bool $multiple Whether the select supports multi-selections
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* @since 1.2
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* @access public
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* @return void
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*/
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function setMultiple($multiple)
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{
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if ($multiple) {
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$this->updateAttributes(array('multiple' => 'multiple'));
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} else {
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$this->removeAttribute('multiple');
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}
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} //end func setMultiple
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// }}}
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// {{{ getMultiple()
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/**
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* Returns the select mutiple attribute
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*
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* @since 1.2
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* @access public
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* @return bool true if multiple select, false otherwise
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*/
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function getMultiple()
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{
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return (bool)$this->getAttribute('multiple');
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} //end func getMultiple
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// }}}
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// {{{ addOption()
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/**
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* Adds a new OPTION to the SELECT
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*
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* @param string $text Display text for the OPTION
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* @param string $value Value for the OPTION
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* @param mixed $attributes Either a typical HTML attribute string
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* or an associative array
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* @since 1.0
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* @access public
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* @return void
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*/
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function addOption($text, $value, $attributes=null)
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{
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if (null === $attributes) {
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$attributes = array('value' => $value);
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} else {
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$attributes = $this->_parseAttributes($attributes);
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if (isset($attributes['selected'])) {
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// the 'selected' attribute will be set in toHtml()
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$this->_removeAttr('selected', $attributes);
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if (is_null($this->_values)) {
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$this->_values = array($value);
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} elseif (!in_array($value, $this->_values)) {
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$this->_values[] = $value;
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}
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}
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$this->_updateAttrArray($attributes, array('value' => $value));
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}
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$this->_options[] = array('text' => $text, 'attr' => $attributes);
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} // end func addOption
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// }}}
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// {{{ loadArray()
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/**
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* Loads the options from an associative array
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*
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* @param array $arr Associative array of options
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return PEAR_Error on error or true
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* @throws PEAR_Error
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*/
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function loadArray($arr, $values=null)
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{
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if (!is_array($arr)) {
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return self::raiseError('Argument 1 of HTML_Select::loadArray is not a valid array');
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}
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if (isset($values)) {
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$this->setSelected($values);
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}
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foreach ($arr as $key => $val) {
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// Warning: new API since release 2.3
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$this->addOption($val, $key);
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}
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return true;
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} // end func loadArray
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// }}}
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// {{{ loadDbResult()
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/**
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* Loads the options from DB_result object
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*
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* If no column names are specified the first two columns of the result are
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* used as the text and value columns respectively
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* @param object $result DB_result object
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* @param string $textCol (optional) Name of column to display as the OPTION text
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* @param string $valueCol (optional) Name of column to use as the OPTION value
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @since 1.0
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* @access public
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* @return PEAR_Error on error or true
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* @throws PEAR_Error
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*/
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function loadDbResult(&$result, $textCol=null, $valueCol=null, $values=null)
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{
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if (!is_object($result) || !is_a($result, 'db_result')) {
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return self::raiseError('Argument 1 of HTML_Select::loadDbResult is not a valid DB_result');
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}
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if (isset($values)) {
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$this->setValue($values);
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}
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$fetchMode = ($textCol && $valueCol) ? DB_FETCHMODE_ASSOC : DB_FETCHMODE_ORDERED;
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while (is_array($row = $result->fetchRow($fetchMode)) ) {
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if ($fetchMode == DB_FETCHMODE_ASSOC) {
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$this->addOption($row[$textCol], $row[$valueCol]);
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} else {
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$this->addOption($row[0], $row[1]);
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}
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}
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return true;
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} // end func loadDbResult
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// }}}
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// {{{ loadQuery()
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/**
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* Queries a database and loads the options from the results
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*
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* @param mixed $conn Either an existing DB connection or a valid dsn
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* @param string $sql SQL query string
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* @param string $textCol (optional) Name of column to display as the OPTION text
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* @param string $valueCol (optional) Name of column to use as the OPTION value
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* @param mixed $values (optional) Array or comma delimited string of selected values
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* @since 1.1
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* @access public
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* @return void
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* @throws PEAR_Error
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*/
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function loadQuery(&$conn, $sql, $textCol=null, $valueCol=null, $values=null)
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{
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if (is_string($conn)) {
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require_once('DB.php');
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$dbConn = &DB::connect($conn, true);
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if (DB::isError($dbConn)) {
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return $dbConn;
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}
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} elseif (is_subclass_of($conn, "db_common")) {
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$dbConn = &$conn;
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} else {
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return self::raiseError('Argument 1 of HTML_Select::loadQuery is not a valid type');
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}
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$result = $dbConn->query($sql);
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if (DB::isError($result)) {
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return $result;
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}
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$this->loadDbResult($result, $textCol, $valueCol, $values);
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$result->free();
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if (is_string($conn)) {
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$dbConn->disconnect();
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}
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return true;
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} // end func loadQuery
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// }}}
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// {{{ load()
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/**
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* Loads options from different types of data sources
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*
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* This method is a simulated overloaded method. The arguments, other than the
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* first are optional and only mean something depending on the type of the first argument.
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* If the first argument is an array then all arguments are passed in order to loadArray.
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* If the first argument is a db_result then all arguments are passed in order to loadDbResult.
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* If the first argument is a string or a DB connection then all arguments are
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* passed in order to loadQuery.
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* @param mixed $options Options source currently supports assoc array or DB_result
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* @param mixed $param1 (optional) See function detail
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* @param mixed $param2 (optional) See function detail
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* @param mixed $param3 (optional) See function detail
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* @param mixed $param4 (optional) See function detail
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* @since 1.1
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* @access public
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* @return PEAR_Error on error or true
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* @throws PEAR_Error
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*/
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function load(&$options, $param1=null, $param2=null, $param3=null, $param4=null)
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{
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switch (true) {
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case is_array($options):
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return $this->loadArray($options, $param1);
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break;
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case (is_a($options, 'db_result')):
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return $this->loadDbResult($options, $param1, $param2, $param3);
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break;
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case (is_string($options) && !empty($options) || is_subclass_of($options, "db_common")):
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return $this->loadQuery($options, $param1, $param2, $param3, $param4);
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break;
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}
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} // end func load
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// }}}
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// {{{ toHtml()
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/**
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* Returns the SELECT in HTML
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function toHtml()
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{
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if ($this->_flagFrozen) {
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return $this->getFrozenHtml();
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} else {
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$tabs = $this->_getTabs();
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$strHtml = '';
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if ($this->getComment() != '') {
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$strHtml .= $tabs . '<!-- ' . $this->getComment() . " //-->\n";
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}
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if (!$this->getMultiple()) {
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$attrString = $this->_getAttrString($this->_attributes);
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} else {
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$myName = $this->getName();
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$this->setName($myName . '[]');
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$attrString = $this->_getAttrString($this->_attributes);
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$this->setName($myName);
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}
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$strHtml .= $tabs . '<select' . $attrString . ">\n";
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foreach ($this->_options as $option) {
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if (is_array($this->_values) && in_array((string)$option['attr']['value'], $this->_values)) {
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$this->_updateAttrArray($option['attr'], array('selected' => 'selected'));
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}
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$strHtml .= $tabs . "\t<option" . $this->_getAttrString($option['attr']) . '>' .
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$option['text'] . "</option>\n";
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}
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return $strHtml . $tabs . '</select>';
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}
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} //end func toHtml
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// }}}
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// {{{ getFrozenHtml()
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/**
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* Returns the value of field without HTML tags
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*
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* @since 1.0
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* @access public
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* @return string
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*/
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function getFrozenHtml()
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{
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$value = array();
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if (is_array($this->_values)) {
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foreach ($this->_values as $key => $val) {
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for ($i = 0, $optCount = count($this->_options); $i < $optCount; $i++) {
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if ((string)$val == (string)$this->_options[$i]['attr']['value']) {
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$value[$key] = $this->_options[$i]['text'];
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break;
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}
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}
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}
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}
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$html = empty($value)? ' ': join('<br />', $value);
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if ($this->_persistantFreeze) {
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$name = $this->getPrivateName();
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// Only use id attribute if doing single hidden input
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if (1 == count($value)) {
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$id = $this->getAttribute('id');
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$idAttr = isset($id)? array('id' => $id): array();
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} else {
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$idAttr = array();
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}
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foreach ($value as $key => $item) {
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$html .= '<input' . $this->_getAttrString(array(
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'type' => 'hidden',
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'name' => $name,
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'value' => $this->_values[$key]
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) + $idAttr) . ' />';
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}
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}
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return $html;
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} //end func getFrozenHtml
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// }}}
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// {{{ exportValue()
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/**
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|
* We check the options and return only the values that _could_ have been
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* selected. We also return a scalar value if select is not "multiple"
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*/
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function exportValue(&$submitValues, $assoc = false)
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{
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$value = $this->_findValue($submitValues);
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if (is_null($value)) {
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$value = $this->getValue();
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} elseif(!is_array($value)) {
|
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$value = array($value);
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}
|
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if (is_array($value) && !empty($this->_options)) {
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|
$cleanValue = null;
|
|
foreach ($value as $v) {
|
|
for ($i = 0, $optCount = count($this->_options); $i < $optCount; $i++) {
|
|
if ($v == $this->_options[$i]['attr']['value']) {
|
|
$cleanValue[] = $v;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$cleanValue = $value;
|
|
}
|
|
if (is_array($cleanValue) && !$this->getMultiple()) {
|
|
return $this->_prepareValue($cleanValue[0], $assoc);
|
|
} else {
|
|
return $this->_prepareValue($cleanValue, $assoc);
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ onQuickFormEvent()
|
|
|
|
function onQuickFormEvent($event, $arg, &$caller)
|
|
{
|
|
if ('updateValue' == $event) {
|
|
$value = $this->_findValue($caller->_constantValues);
|
|
if (null === $value) {
|
|
$value = $this->_findValue($caller->_submitValues);
|
|
// Fix for bug #4465 & #5269
|
|
// XXX: should we push this to element::onQuickFormEvent()?
|
|
if (null === $value && (!$caller->isSubmitted() || !$this->getMultiple())) {
|
|
$value = $this->_findValue($caller->_defaultValues);
|
|
}
|
|
}
|
|
if (null !== $value) {
|
|
$this->setValue($value);
|
|
}
|
|
return true;
|
|
} else {
|
|
return parent::onQuickFormEvent($event, $arg, $caller);
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
} //end class HTML_QuickForm_select
|
|
?>
|
|
|