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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP version 4.0                                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license,       |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/2_02.txt.                                 |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to          |
// | license@php.net so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Adam Daniel <adaniel1@eesus.jnj.com>                        |
// |          Bertrand Mansion <bmansion@mamasam.com>                     |
// +----------------------------------------------------------------------+
//
// $Id$

require_once('HTML/QuickForm/element.php');

/**
 * Class to dynamically create an HTML SELECT
 *
 * @author       Adam Daniel <adaniel1@eesus.jnj.com>
 * @author       Bertrand Mansion <bmansion@mamasam.com>
 * @version      1.0
 * @since        PHP4.04pl1
 * @access       public
 */
class HTML_QuickForm_select extends HTML_QuickForm_element {
    
    // {{{ properties

    /**
     * Contains the select options
     *
     * @var       array
     * @since     1.0
     * @access    private
     */
    var $_options = array();
    
    /**
     * Default values of the SELECT
     * 
< * @var string
> * @var array
* @since 1.0 * @access private */ var $_values = null; // }}} // {{{ constructor /** * Class constructor * * @param string Select name attribute * @param mixed Label(s) for the select * @param mixed Data to be used to populate options * @param mixed Either a typical HTML attribute string or an associative array * @since 1.0 * @access public * @return void */ public function __construct($elementName=null, $elementLabel=null, $options=null, $attributes=null) { parent::__construct($elementName, $elementLabel, $attributes); $this->_persistantFreeze = true; $this->_type = 'select'; if (isset($options)) { $this->load($options); } } //end constructor /** * Old syntax of class constructor. Deprecated in PHP7. * * @deprecated since Moodle 3.1 */ public function HTML_QuickForm_select($elementName=null, $elementLabel=null, $options=null, $attributes=null) { debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER); self::__construct($elementName, $elementLabel, $attributes); } // }}} // {{{ apiVersion() /** * Returns the current API version * * @since 1.0 * @access public * @return double */ function apiVersion() { return 2.3; } //end func apiVersion // }}} // {{{ setSelected() /** * Sets the default values of the select box * * @param mixed $values Array or comma delimited string of selected values * @since 1.0 * @access public * @return void */ function setSelected($values) { if (is_string($values) && $this->getMultiple()) { $values = preg_split("/[ ]?,[ ]?/", $values); } if (is_array($values)) { $this->_values = array_values($values); } else { $this->_values = array($values); } } //end func setSelected // }}} // {{{ getSelected() /** * Returns an array of the selected values * * @since 1.0 * @access public * @return array of selected values */ function getSelected() { return $this->_values; } // end func getSelected // }}} // {{{ setName() /** * Sets the input field name * * @param string $name Input field name attribute * @since 1.0 * @access public * @return void */ function setName($name) { $this->updateAttributes(array('name' => $name)); } //end func setName // }}} // {{{ getName() /** * Returns the element name * * @since 1.0 * @access public * @return string */ function getName() { return $this->getAttribute('name'); } //end func getName // }}} // {{{ getPrivateName() /** * Returns the element name (possibly with brackets appended) * * @since 1.0 * @access public * @return string */ function getPrivateName() { if ($this->getAttribute('multiple')) { return $this->getName() . '[]'; } else { return $this->getName(); } } //end func getPrivateName // }}} // {{{ setValue() /** * Sets the value of the form element * * @param mixed $values Array or comma delimited string of selected values * @since 1.0 * @access public * @return void */ function setValue($value) { $this->setSelected($value); } // end func setValue // }}} // {{{ getValue() /** * Returns an array of the selected values * * @since 1.0 * @access public * @return array of selected values */ function getValue() { return $this->_values; } // end func getValue // }}} // {{{ setSize() /** * Sets the select field size, only applies to 'multiple' selects * * @param int $size Size of select field * @since 1.0 * @access public * @return void */ function setSize($size) { $this->updateAttributes(array('size' => $size)); } //end func setSize // }}} // {{{ getSize() /** * Returns the select field size * * @since 1.0 * @access public * @return int */ function getSize() { return $this->getAttribute('size'); } //end func getSize // }}} // {{{ setMultiple() /** * Sets the select mutiple attribute * * @param bool $multiple Whether the select supports multi-selections * @since 1.2 * @access public * @return void */ function setMultiple($multiple) { if ($multiple) { $this->updateAttributes(array('multiple' => 'multiple')); } else { $this->removeAttribute('multiple'); } } //end func setMultiple // }}} // {{{ getMultiple() /** * Returns the select mutiple attribute * * @since 1.2 * @access public * @return bool true if multiple select, false otherwise */ function getMultiple() { return (bool)$this->getAttribute('multiple'); } //end func getMultiple // }}} // {{{ addOption() /** * Adds a new OPTION to the SELECT * * @param string $text Display text for the OPTION * @param string $value Value for the OPTION * @param mixed $attributes Either a typical HTML attribute string * or an associative array * @since 1.0 * @access public * @return void */ function addOption($text, $value, $attributes=null) { if (null === $attributes) { $attributes = array('value' => $value); } else { $attributes = $this->_parseAttributes($attributes); if (isset($attributes['selected'])) { // the 'selected' attribute will be set in toHtml() $this->_removeAttr('selected', $attributes); if (is_null($this->_values)) { $this->_values = array($value); } elseif (!in_array($value, $this->_values)) { $this->_values[] = $value; } } $this->_updateAttrArray($attributes, array('value' => $value)); } $this->_options[] = array('text' => $text, 'attr' => $attributes); } // end func addOption // }}} // {{{ loadArray() /** * Loads the options from an associative array * * @param array $arr Associative array of options * @param mixed $values (optional) Array or comma delimited string of selected values * @since 1.0 * @access public * @return PEAR_Error on error or true * @throws PEAR_Error */ function loadArray($arr, $values=null) { if (!is_array($arr)) { return self::raiseError('Argument 1 of HTML_Select::loadArray is not a valid array'); } if (isset($values)) { $this->setSelected($values); } foreach ($arr as $key => $val) { // Warning: new API since release 2.3 $this->addOption($val, $key); } return true; } // end func loadArray // }}} // {{{ loadDbResult() /** * Loads the options from DB_result object * * If no column names are specified the first two columns of the result are * used as the text and value columns respectively * @param object $result DB_result object * @param string $textCol (optional) Name of column to display as the OPTION text * @param string $valueCol (optional) Name of column to use as the OPTION value * @param mixed $values (optional) Array or comma delimited string of selected values * @since 1.0 * @access public * @return PEAR_Error on error or true * @throws PEAR_Error */ function loadDbResult(&$result, $textCol=null, $valueCol=null, $values=null) { if (!is_object($result) || !is_a($result, 'db_result')) { return self::raiseError('Argument 1 of HTML_Select::loadDbResult is not a valid DB_result'); } if (isset($values)) { $this->setValue($values); } $fetchMode = ($textCol && $valueCol) ? DB_FETCHMODE_ASSOC : DB_FETCHMODE_ORDERED; while (is_array($row = $result->fetchRow($fetchMode)) ) { if ($fetchMode == DB_FETCHMODE_ASSOC) { $this->addOption($row[$textCol], $row[$valueCol]); } else { $this->addOption($row[0], $row[1]); } } return true; } // end func loadDbResult // }}} // {{{ loadQuery() /** * Queries a database and loads the options from the results * * @param mixed $conn Either an existing DB connection or a valid dsn * @param string $sql SQL query string * @param string $textCol (optional) Name of column to display as the OPTION text * @param string $valueCol (optional) Name of column to use as the OPTION value * @param mixed $values (optional) Array or comma delimited string of selected values * @since 1.1 * @access public * @return void * @throws PEAR_Error */ function loadQuery(&$conn, $sql, $textCol=null, $valueCol=null, $values=null) { if (is_string($conn)) { require_once('DB.php'); $dbConn = &DB::connect($conn, true); if (DB::isError($dbConn)) { return $dbConn; } } elseif (is_subclass_of($conn, "db_common")) { $dbConn = &$conn; } else { return self::raiseError('Argument 1 of HTML_Select::loadQuery is not a valid type'); } $result = $dbConn->query($sql); if (DB::isError($result)) { return $result; } $this->loadDbResult($result, $textCol, $valueCol, $values); $result->free(); if (is_string($conn)) { $dbConn->disconnect(); } return true; } // end func loadQuery // }}} // {{{ load() /** * Loads options from different types of data sources * * This method is a simulated overloaded method. The arguments, other than the * first are optional and only mean something depending on the type of the first argument. * If the first argument is an array then all arguments are passed in order to loadArray. * If the first argument is a db_result then all arguments are passed in order to loadDbResult. * If the first argument is a string or a DB connection then all arguments are * passed in order to loadQuery. * @param mixed $options Options source currently supports assoc array or DB_result * @param mixed $param1 (optional) See function detail * @param mixed $param2 (optional) See function detail * @param mixed $param3 (optional) See function detail * @param mixed $param4 (optional) See function detail * @since 1.1 * @access public * @return PEAR_Error on error or true * @throws PEAR_Error */ function load(&$options, $param1=null, $param2=null, $param3=null, $param4=null) { switch (true) { case is_array($options): return $this->loadArray($options, $param1); break; case (is_a($options, 'db_result')): return $this->loadDbResult($options, $param1, $param2, $param3); break; case (is_string($options) && !empty($options) || is_subclass_of($options, "db_common")): return $this->loadQuery($options, $param1, $param2, $param3, $param4); break; } } // end func load // }}} // {{{ toHtml() /** * Returns the SELECT in HTML * * @since 1.0 * @access public * @return string */ function toHtml() { if ($this->_flagFrozen) { return $this->getFrozenHtml(); } else { $tabs = $this->_getTabs(); $strHtml = ''; if ($this->getComment() != '') { $strHtml .= $tabs . '<!-- ' . $this->getComment() . " //-->\n"; } if (!$this->getMultiple()) { $attrString = $this->_getAttrString($this->_attributes); } else { $myName = $this->getName(); $this->setName($myName . '[]'); $attrString = $this->_getAttrString($this->_attributes); $this->setName($myName); } $strHtml .= $tabs . '<select' . $attrString . ">\n"; foreach ($this->_options as $option) { if (is_array($this->_values) && in_array((string)$option['attr']['value'], $this->_values)) { $this->_updateAttrArray($option['attr'], array('selected' => 'selected')); } $strHtml .= $tabs . "\t<option" . $this->_getAttrString($option['attr']) . '>' . $option['text'] . "</option>\n"; } return $strHtml . $tabs . '</select>'; } } //end func toHtml // }}} // {{{ getFrozenHtml() /** * Returns the value of field without HTML tags * * @since 1.0 * @access public * @return string */ function getFrozenHtml() { $value = array(); if (is_array($this->_values)) { foreach ($this->_values as $key => $val) { for ($i = 0, $optCount = count($this->_options); $i < $optCount; $i++) { if ((string)$val == (string)$this->_options[$i]['attr']['value']) { $value[$key] = $this->_options[$i]['text']; break; } } } } $html = empty($value)? '&nbsp;': join('<br />', $value); if ($this->_persistantFreeze) { $name = $this->getPrivateName(); // Only use id attribute if doing single hidden input if (1 == count($value)) { $id = $this->getAttribute('id'); $idAttr = isset($id)? array('id' => $id): array(); } else { $idAttr = array(); } foreach ($value as $key => $item) { $html .= '<input' . $this->_getAttrString(array( 'type' => 'hidden', 'name' => $name, 'value' => $this->_values[$key] ) + $idAttr) . ' />'; } } return $html; } //end func getFrozenHtml // }}} // {{{ exportValue() /** * We check the options and return only the values that _could_ have been * selected. We also return a scalar value if select is not "multiple" */ function exportValue(&$submitValues, $assoc = false) { $value = $this->_findValue($submitValues); if (is_null($value)) { $value = $this->getValue(); } elseif(!is_array($value)) { $value = array($value); } if (is_array($value) && !empty($this->_options)) { $cleanValue = null; foreach ($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 ?>