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QuickForm.php
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<?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 |
// | [email protected] so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Adam Daniel <[email protected]> |
// | Bertrand Mansion <[email protected]> |
// +----------------------------------------------------------------------+
//
// $Id$
require_once('PEAR.php');
require_once('HTML/Common.php');
$GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'] =
array(
'group' =>array('HTML/QuickForm/group.php','HTML_QuickForm_group'),
'hidden' =>array('HTML/QuickForm/hidden.php','HTML_QuickForm_hidden'),
'reset' =>array('HTML/QuickForm/reset.php','HTML_QuickForm_reset'),
'checkbox' =>array('HTML/QuickForm/checkbox.php','HTML_QuickForm_checkbox'),
'file' =>array('HTML/QuickForm/file.php','HTML_QuickForm_file'),
'image' =>array('HTML/QuickForm/image.php','HTML_QuickForm_image'),
'password' =>array('HTML/QuickForm/password.php','HTML_QuickForm_password'),
'radio' =>array('HTML/QuickForm/radio.php','HTML_QuickForm_radio'),
'button' =>array('HTML/QuickForm/button.php','HTML_QuickForm_button'),
'submit' =>array('HTML/QuickForm/submit.php','HTML_QuickForm_submit'),
'select' =>array('HTML/QuickForm/select.php','HTML_QuickForm_select'),
'hiddenselect' =>array('HTML/QuickForm/hiddenselect.php','HTML_QuickForm_hiddenselect'),
'text' =>array('HTML/QuickForm/text.php','HTML_QuickForm_text'),
'textarea' =>array('HTML/QuickForm/textarea.php','HTML_QuickForm_textarea'),
'link' =>array('HTML/QuickForm/link.php','HTML_QuickForm_link'),
'advcheckbox' =>array('HTML/QuickForm/advcheckbox.php','HTML_QuickForm_advcheckbox'),
'date' =>array('HTML/QuickForm/date.php','HTML_QuickForm_date'),
'static' =>array('HTML/QuickForm/static.php','HTML_QuickForm_static'),
'header' =>array('HTML/QuickForm/header.php', 'HTML_QuickForm_header'),
'html' =>array('HTML/QuickForm/html.php', 'HTML_QuickForm_html'),
'hierselect' =>array('HTML/QuickForm/hierselect.php', 'HTML_QuickForm_hierselect'),
'autocomplete' =>array('HTML/QuickForm/autocomplete.php', 'HTML_QuickForm_autocomplete'),
'xbutton' =>array('HTML/QuickForm/xbutton.php','HTML_QuickForm_xbutton')
);
$GLOBALS['_HTML_QuickForm_registered_rules'] = array(
'required' => array('html_quickform_rule_required', 'HTML/QuickForm/Rule/Required.php'),
'maxlength' => array('html_quickform_rule_range', 'HTML/QuickForm/Rule/Range.php'),
'minlength' => array('html_quickform_rule_range', 'HTML/QuickForm/Rule/Range.php'),
'rangelength' => array('html_quickform_rule_range', 'HTML/QuickForm/Rule/Range.php'),
'email' => array('html_quickform_rule_email', 'HTML/QuickForm/Rule/Email.php'),
'regex' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'lettersonly' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'alphanumeric' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'numeric' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'nopunctuation' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'nonzero' => array('html_quickform_rule_regex', 'HTML/QuickForm/Rule/Regex.php'),
'callback' => array('html_quickform_rule_callback', 'HTML/QuickForm/Rule/Callback.php'),
'compare' => array('html_quickform_rule_compare', 'HTML/QuickForm/Rule/Compare.php')
);
// {{{ error codes
/*
* Error codes for the QuickForm interface, which will be mapped to textual messages
* in the QuickForm::errorMessage() function. If you are to add a new error code, be
* sure to add the textual messages to the QuickForm::errorMessage() function as well
*/
define('QUICKFORM_OK', 1);
define('QUICKFORM_ERROR', -1);
define('QUICKFORM_INVALID_RULE', -2);
define('QUICKFORM_NONEXIST_ELEMENT', -3);
define('QUICKFORM_INVALID_FILTER', -4);
define('QUICKFORM_UNREGISTERED_ELEMENT', -5);
define('QUICKFORM_INVALID_ELEMENT_NAME', -6);
define('QUICKFORM_INVALID_PROCESS', -7);
define('QUICKFORM_DEPRECATED', -8);
define('QUICKFORM_INVALID_DATASOURCE', -9);
// }}}
/**
* Create, validate and process HTML forms
*
* @author Adam Daniel <[email protected]>
* @author Bertrand Mansion <[email protected]>
* @version 2.0
* @since PHP 4.0.3pl1
*/
class HTML_QuickForm extends HTML_Common {
// {{{ properties
/**
* Array containing the form fields
* @since 1.0
* @var array
* @access private
*/
var $_elements = array();
/**
* Array containing element name to index map
* @since 1.1
* @var array
* @access private
*/
var $_elementIndex = array();
/**
* Array containing indexes of duplicate elements
* @since 2.10
* @var array
* @access private
*/
var $_duplicateIndex = array();
/**
* Array containing required field IDs
* @since 1.0
* @var array
* @access private
*/
var $_required = array();
/**
* Prefix message in javascript alert if error
* @since 1.0
* @var string
* @access public
*/
var $_jsPrefix = 'Invalid information entered.';
/**
* Postfix message in javascript alert if error
* @since 1.0
* @var string
* @access public
*/
var $_jsPostfix = 'Please correct these fields.';
/**
* Datasource object implementing the informal
* datasource protocol
* @since 3.3
* @var object
* @access private
*/
var $_datasource;
/**
* Array of default form values
* @since 2.0
* @var array
* @access private
*/
var $_defaultValues = array();
/**
* Array of constant form values
* @since 2.0
* @var array
* @access private
*/
var $_constantValues = array();
/**
* Array of submitted form values
* @since 1.0
* @var array
* @access private
*/
var $_submitValues = array();
/**
* Array of submitted form files
* @since 1.0
* @var integer
* @access public
*/
var $_submitFiles = array();
/**
* Value for maxfilesize hidden element if form contains file input
* @since 1.0
* @var integer
* @access public
*/
var $_maxFileSize = 1048576; // 1 Mb = 1048576
/**
* Flag to know if all fields are frozen
* @since 1.0
* @var boolean
* @access private
*/
var $_freezeAll = false;
/**
* Array containing the form rules
* @since 1.0
* @var array
* @access private
*/
var $_rules = array();
/**
* Form rules, global variety
* @var array
* @access private
*/
var $_formRules = array();
/**
* Array containing the validation errors
* @since 1.0
* @var array
* @access private
*/
var $_errors = array();
/**
* Note for required fields in the form
* @var string
* @since 1.0
* @access private
*/
var $_requiredNote = '<span style="font-size:80%; color:#ff0000;">*</span><span style="font-size:80%;"> denotes required field</span>';
/**
* Whether the form was submitted
* @var boolean
* @access private
*/
var $_flagSubmitted = false;
// }}}
// {{{ constructor
/**
* Class constructor
* @param string $formName Form's name.
* @param string $method (optional)Form's method defaults to 'POST'
* @param string $action (optional)Form's action
* @param string $target (optional)Form's target defaults to '_self'
* @param mixed $attributes (optional)Extra attributes for <form> tag
* @param bool $trackSubmit (optional)Whether to track if the form was submitted by adding a special hidden field
* @access public
*/
function HTML_QuickForm($formName='', $method='post', $action='', $target='', $attributes=null, $trackSubmit = false)
{
HTML_Common::HTML_Common($attributes);
$method = (strtoupper($method) == 'GET') ? 'get' : 'post';
$action = ($action == '') ? $_SERVER['PHP_SELF'] : $action;
$target = empty($target) ? array() : array('target' => $target);
$attributes = array('action'=>$action, 'method'=>$method, 'name'=>$formName, 'id'=>$formName) + $target;
$this->updateAttributes($attributes);
if (!$trackSubmit || isset($_REQUEST['_qf__' . $formName])) {
if (1 == get_magic_quotes_gpc()) {
$this->_submitValues = ('get' == $method? $_GET: $_POST); // we already eliminated magic quotes in moodle setup.php
foreach ($_FILES as $keyFirst => $valFirst) {
foreach ($valFirst as $keySecond => $valSecond) {
if ('name' == $keySecond) {
$this->_submitFiles[$keyFirst][$keySecond] = $valSecond; // we already eliminated magic quotes in moodle setup.php
} else {
$this->_submitFiles[$keyFirst][$keySecond] = $valSecond;
}
}
}
} else {
$this->_submitValues = 'get' == $method? $_GET: $_POST;
$this->_submitFiles = $_FILES;
}
$this->_flagSubmitted = count($this->_submitValues) > 0 || count($this->_submitFiles) > 0;
}
if ($trackSubmit) {
unset($this->_submitValues['_qf__' . $formName]);
$this->addElement('hidden', '_qf__' . $formName, null);
}
if (preg_match('/^([0-9]+)([a-zA-Z]*)$/', ini_get('upload_max_filesize'), $matches)) {
// see http://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
switch (strtoupper($matches['2'])) {
case 'G':
$this->_maxFileSize = $matches['1'] * 1073741824;
break;
case 'M':
$this->_maxFileSize = $matches['1'] * 1048576;
break;
case 'K':
$this->_maxFileSize = $matches['1'] * 1024;
break;
default:
$this->_maxFileSize = $matches['1'];
}
}
} // end constructor
// }}}
// {{{ apiVersion()
/**
* Returns the current API version
*
* @since 1.0
* @access public
* @return float
*/
function apiVersion()
{
return 3.2;
} // end func apiVersion
// }}}
// {{{ registerElementType()
/**
* Registers a new element type
*
* @param string $typeName Name of element type
* @param string $include Include path for element type
* @param string $className Element class name
* @since 1.0
* @access public
* @return void
*/
static function registerElementType($typeName, $include, $className)
{
$GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'][strtolower($typeName)] = array($include, $className);
} // end func registerElementType
// }}}
// {{{ registerRule()
/**
* Registers a new validation rule
*
* @param string $ruleName Name of validation rule
* @param string $type Either: 'regex', 'function' or 'rule' for an HTML_QuickForm_Rule object
* @param string $data1 Name of function, regular expression or HTML_QuickForm_Rule classname
* @param string $data2 Object parent of above function or HTML_QuickForm_Rule file path
* @since 1.0
* @access public
* @return void
*/
static function registerRule($ruleName, $type, $data1, $data2 = null)
{
include_once('HTML/QuickForm/RuleRegistry.php');
$registry =& HTML_QuickForm_RuleRegistry::singleton();
$registry->registerRule($ruleName, $type, $data1, $data2);
} // end func registerRule
// }}}
// {{{ elementExists()
/**
* Returns true if element is in the form
*
* @param string $element form name of element to check
* @since 1.0
* @access public
* @return boolean
*/
function elementExists($element=null)
{
return isset($this->_elementIndex[$element]);
} // end func elementExists
// }}}
// {{{ setDatasource()
/**
* Sets a datasource object for this form object
*
* Datasource default and constant values will feed the QuickForm object if
* the datasource implements defaultValues() and constantValues() methods.
*
* @param object $datasource datasource object implementing the informal datasource protocol
* @param mixed $defaultsFilter string or array of filter(s) to apply to default values
* @param mixed $constantsFilter string or array of filter(s) to apply to constants values
* @since 3.3
* @access public
* @return void
*/
function setDatasource(&$datasource, $defaultsFilter = null, $constantsFilter = null)
{
if (is_object($datasource)) {
$this->_datasource =& $datasource;
if (is_callable(array($datasource, 'defaultValues'))) {
$this->setDefaults($datasource->defaultValues($this), $defaultsFilter);
}
if (is_callable(array($datasource, 'constantValues'))) {
$this->setConstants($datasource->constantValues($this), $constantsFilter);
}
} else {
return self::raiseError(null, QUICKFORM_INVALID_DATASOURCE, null, E_USER_WARNING, "Datasource is not an object in QuickForm::setDatasource()", 'HTML_QuickForm_Error', true);
}
} // end func setDatasource
// }}}
// {{{ setDefaults()
/**
* Initializes default form values
*
* @param array $defaultValues values used to fill the form
* @param mixed $filter (optional) filter(s) to apply to all default values
* @since 1.0
* @access public
* @return void
*/
function setDefaults($defaultValues = null, $filter = null)
{
if (is_array($defaultValues)) {
if (isset($filter)) {
if (is_array($filter) && (2 != count($filter) || !is_callable($filter))) {
foreach ($filter as $val) {
if (!is_callable($val)) {
return self::raiseError(null, QUICKFORM_INVALID_FILTER, null, E_USER_WARNING, "Callback function does not exist in QuickForm::setDefaults()", 'HTML_QuickForm_Error', true);
} else {
$defaultValues = $this->_recursiveFilter($val, $defaultValues);
}
}
} elseif (!is_callable($filter)) {
return self::raiseError(null, QUICKFORM_INVALID_FILTER, null, E_USER_WARNING, "Callback function does not exist in QuickForm::setDefaults()", 'HTML_QuickForm_Error', true);
} else {
$defaultValues = $this->_recursiveFilter($filter, $defaultValues);
}
}
$this->_defaultValues = HTML_QuickForm::arrayMerge($this->_defaultValues, $defaultValues);
foreach (array_keys($this->_elements) as $key) {
$this->_elements[$key]->onQuickFormEvent('updateValue', null, $this);
}
}
} // end func setDefaults
// }}}
// {{{ setConstants()
/**
* Initializes constant form values.
* These values won't get overridden by POST or GET vars
*
* @param array $constantValues values used to fill the form
* @param mixed $filter (optional) filter(s) to apply to all default values
*
* @since 2.0
* @access public
* @return void
*/
function setConstants($constantValues = null, $filter = null)
{
if (is_array($constantValues)) {
if (isset($filter)) {
if (is_array($filter) && (2 != count($filter) || !is_callable($filter))) {
foreach ($filter as $val) {
if (!is_callable($val)) {
return self::raiseError(null, QUICKFORM_INVALID_FILTER, null, E_USER_WARNING, "Callback function does not exist in QuickForm::setConstants()", 'HTML_QuickForm_Error', true);
} else {
$constantValues = $this->_recursiveFilter($val, $constantValues);
}
}
} elseif (!is_callable($filter)) {
return self::raiseError(null, QUICKFORM_INVALID_FILTER, null, E_USER_WARNING, "Callback function does not exist in QuickForm::setConstants()", 'HTML_QuickForm_Error', true);
} else {
$constantValues = $this->_recursiveFilter($filter, $constantValues);
}
}
$this->_constantValues = HTML_QuickForm::arrayMerge($this->_constantValues, $constantValues);
foreach (array_keys($this->_elements) as $key) {
$this->_elements[$key]->onQuickFormEvent('updateValue', null, $this);
}
}
} // end func setConstants
// }}}
// {{{ setMaxFileSize()
/**
* Sets the value of MAX_FILE_SIZE hidden element
*
* @param int $bytes Size in bytes
* @since 3.0
* @access public
* @return void
*/
function setMaxFileSize($bytes = 0)
{
if ($bytes > 0) {
$this->_maxFileSize = $bytes;
}
if (!$this->elementExists('MAX_FILE_SIZE')) {
$this->addElement('hidden', 'MAX_FILE_SIZE', $this->_maxFileSize);
} else {
$el =& $this->getElement('MAX_FILE_SIZE');
$el->updateAttributes(array('value' => $this->_maxFileSize));
}
} // end func setMaxFileSize
// }}}
// {{{ getMaxFileSize()
/**
* Returns the value of MAX_FILE_SIZE hidden element
*
* @since 3.0
* @access public
* @return int max file size in bytes
*/
function getMaxFileSize()
{
return $this->_maxFileSize;
} // end func getMaxFileSize
// }}}
// {{{ &createElement()
/**
* Creates a new form element of the given type.
*
* This method accepts variable number of parameters, their
* meaning and count depending on $elementType
*
* @param string $elementType type of element to add (text, textarea, file...)
* @since 1.0
* @access public
* @return object extended class of HTML_element
* @throws HTML_QuickForm_Error
*/
function &createElement($elementType)
{
$args = func_get_args();
$element =& HTML_QuickForm::_loadElement('createElement', $elementType, array_slice($args, 1));
return $element;
} // end func createElement
// }}}
// {{{ _loadElement()
/**
* Returns a form element of the given type
*
* @param string $event event to send to newly created element ('createElement' or 'addElement')
* @param string $type element type
* @param array $args arguments for event
* @since 2.0
* @access private
* @return object a new element
* @throws HTML_QuickForm_Error
*/
function &_loadElement($event, $type, $args)
{
$type = strtolower($type);
if (!HTML_QuickForm::isTypeRegistered($type)) {
$error = self::raiseError(null, QUICKFORM_UNREGISTERED_ELEMENT, null, E_USER_WARNING, "Element '$type' does not exist in HTML_QuickForm::_loadElement()", 'HTML_QuickForm_Error', true);
return $error;
}
$className = $GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'][$type][1];
$includeFile = $GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'][$type][0];
include_once($includeFile);
$elementObject = new $className(); //Moodle: PHP 5.3 compatibility
for ($i = 0; $i < 5; $i++) {
if (!isset($args[$i])) {
$args[$i] = null;
}
}
$err = $elementObject->onQuickFormEvent($event, $args, $this);
if ($err !== true) {
return $err;
}
return $elementObject;
} // end func _loadElement
// }}}
// {{{ addElement()
/**
* Adds an element into the form
*
* If $element is a string representing element type, then this
* method accepts variable number of parameters, their meaning
* and count depending on $element
*
* @param mixed $element element object or type of element to add (text, textarea, file...)
* @since 1.0
* @return object reference to element
* @access public
* @throws HTML_QuickForm_Error
*/
function &addElement($element)
{
if (is_object($element) && is_subclass_of($element, 'html_quickform_element')) {
$elementObject = &$element;
$elementObject->onQuickFormEvent('updateValue', null, $this);
} else {
$args = func_get_args();
$elementObject =& $this->_loadElement('addElement', $element, array_slice($args, 1));
if (@PEAR::isError($elementObject)) {
return $elementObject;
}
}
$elementName = $elementObject->getName();
// Add the element if it is not an incompatible duplicate
if (!empty($elementName) && isset($this->_elementIndex[$elementName])) {
if ($this->_elements[$this->_elementIndex[$elementName]]->getType() ==
$elementObject->getType()) {
$this->_elements[] =& $elementObject;
$elKeys = array_keys($this->_elements);
$this->_duplicateIndex[$elementName][] = end($elKeys);
} else {
$error = self::raiseError(null, QUICKFORM_INVALID_ELEMENT_NAME, null, E_USER_WARNING, "Element '$elementName' already exists in HTML_QuickForm::addElement()", 'HTML_QuickForm_Error', true);
return $error;
}
} else {
$this->_elements[] =& $elementObject;
$elKeys = array_keys($this->_elements);
$this->_elementIndex[$elementName] = end($elKeys);
}
if ($this->_freezeAll) {
$elementObject->freeze();
}
return $elementObject;
} // end func addElement
// }}}
// {{{ insertElementBefore()
/**
* Inserts a new element right before the other element
*
* Warning: it is not possible to check whether the $element is already
* added to the form, therefore if you want to move the existing form
* element to a new position, you'll have to use removeElement():
* $form->insertElementBefore($form->removeElement('foo', false), 'bar');
*
* @access public
* @since 3.2.4
* @param object HTML_QuickForm_element Element to insert
* @param string Name of the element before which the new one is inserted
* @return object HTML_QuickForm_element reference to inserted element
* @throws HTML_QuickForm_Error
*/
function &insertElementBefore(&$element, $nameAfter)
{
if (!empty($this->_duplicateIndex[$nameAfter])) {
$error = self::raiseError(null, QUICKFORM_INVALID_ELEMENT_NAME, null, E_USER_WARNING, 'Several elements named "' . $nameAfter . '" exist in HTML_QuickForm::insertElementBefore().', 'HTML_QuickForm_Error', true);
return $error;
} elseif (!$this->elementExists($nameAfter)) {
$error = self::raiseError(null, QUICKFORM_NONEXIST_ELEMENT, null, E_USER_WARNING, "Element '$nameAfter' does not exist in HTML_QuickForm::insertElementBefore()", 'HTML_QuickForm_Error', true);
return $error;
}
$elementName = $element->getName();
$targetIdx = $this->_elementIndex[$nameAfter];
$duplicate = false;
// Like in addElement(), check that it's not an incompatible duplicate
if (!empty($elementName) && isset($this->_elementIndex[$elementName])) {
if ($this->_elements[$this->_elementIndex[$elementName]]->getType() != $element->getType()) {
$error = self::raiseError(null, QUICKFORM_INVALID_ELEMENT_NAME, null, E_USER_WARNING, "Element '$elementName' already exists in HTML_QuickForm::insertElementBefore()", 'HTML_QuickForm_Error', true);
return $error;
}
$duplicate = true;
}
// Move all the elements after added back one place, reindex _elementIndex and/or _duplicateIndex
$elKeys = array_keys($this->_elements);
for ($i = end($elKeys); $i >= $targetIdx; $i--) {
if (isset($this->_elements[$i])) {
$currentName = $this->_elements[$i]->getName();
$this->_elements[$i + 1] =& $this->_elements[$i];
if ($this->_elementIndex[$currentName] == $i) {
$this->_elementIndex[$currentName] = $i + 1;
} else {
if (!empty($currentName)) {
$dupIdx = array_search($i, $this->_duplicateIndex[$currentName]);
$this->_duplicateIndex[$currentName][$dupIdx] = $i + 1;
}
}
unset($this->_elements[$i]);
}
}
// Put the element in place finally
$this->_elements[$targetIdx] =& $element;
if (!$duplicate) {
$this->_elementIndex[$elementName] = $targetIdx;
} else {
$this->_duplicateIndex[$elementName][] = $targetIdx;
}
$element->onQuickFormEvent('updateValue', null, $this);
if ($this->_freezeAll) {
$element->freeze();
}
// If not done, the elements will appear in reverse order
ksort($this->_elements);
return $element;
}
// }}}
// {{{ addGroup()
/**
* Adds an element group
* @param array $elements array of elements composing the group
* @param string $name (optional)group name
* @param string $groupLabel (optional)group label
* @param string $separator (optional)string to separate elements
* @param string $appendName (optional)specify whether the group name should be
* used in the form element name ex: group[element]
* @return object reference to added group of elements
* @since 2.8
* @access public
* @throws PEAR_Error
*/
function &addGroup($elements, $name=null, $groupLabel='', $separator=null, $appendName = true)
{
static $anonGroups = 1;
if (0 == strlen($name)) {
$name = 'qf_group_' . $anonGroups++;
$appendName = false;
}
$group =& $this->addElement('group', $name, $groupLabel, $elements, $separator, $appendName);
return $group;
} // end func addGroup
// }}}
// {{{ &getElement()
/**
* Returns a reference to the element
*
* @param string $element Element name
* @since 2.0
* @access public
* @return object reference to element
* @throws HTML_QuickForm_Error
*/
function &getElement($element)
{
if (isset($this->_elementIndex[$element])) {
return $this->_elements[$this->_elementIndex[$element]];
} else {
$error = self::raiseError(null, QUICKFORM_NONEXIST_ELEMENT, null, E_USER_WARNING, "Element '$element' does not exist in HTML_QuickForm::getElement()", 'HTML_QuickForm_Error', true);
return $error;
}
} // end func getElement
// }}}
// {{{ &getElementValue()
/**
* Returns the element's raw value
*
* This returns the value as submitted by the form (not filtered)
* or set via setDefaults() or setConstants()
*
* @param string $element Element name
* @since 2.0
* @access public
* @return mixed element value
* @throws HTML_QuickForm_Error
*/
function &getElementValue($element)
{
if (!isset($this->_elementIndex[$element])) {
$error = self::raiseError(null, QUICKFORM_NONEXIST_ELEMENT, null, E_USER_WARNING, "Element '$element' does not exist in HTML_QuickForm::getElementValue()", 'HTML_QuickForm_Error', true);
return $error;
}
$value = $this->_elements[$this->_elementIndex[$element]]->getValue();
if (isset($this->_duplicateIndex[$element])) {
foreach ($this->_duplicateIndex[$element] as $index) {
if (null !== ($v = $this->_elements[$index]->getValue())) {
if (is_array($value)) {
$value[] = $v;
} else {
$value = (null === $value)? $v: array($value, $v);
}
}
}
}
return $value;
} // end func getElementValue
// }}}
// {{{ getSubmitValue()
/**
* Returns the elements value after submit and filter
*
* @param string Element name
* @since 2.0
* @access public
* @return mixed submitted element value or null if not set
*/
function getSubmitValue($elementName)
{
$value = null;
if (isset($this->_submitValues[$elementName]) || isset($this->_submitFiles[$elementName])) {
$value = isset($this->_submitValues[$elementName])? $this->_submitValues[$elementName]: array();
if (is_array($value) && isset($this->_submitFiles[$elementName])) {
foreach ($this->_submitFiles[$elementName] as $k => $v) {
$value = HTML_QuickForm::arrayMerge($value, $this->_reindexFiles($this->_submitFiles[$elementName][$k], $k));
}
}
} elseif ('file' == $this->getElementType($elementName)) {
return $this->getElementValue($elementName);
} elseif (false !== ($pos = strpos($elementName, '['))) {
$base = substr($elementName, 0, $pos);
$idx = "['" . str_replace(array(']', '['), array('', "']['"), substr($elementName, $pos + 1, -1)) . "']";
if (isset($this->_submitValues[$base])) {
$value = eval("return (isset(\$this->_submitValues['{$base}']{$idx})) ? \$this->_submitValues['{$base}']{$idx} : null;");
}
if ((is_array($value) || null === $value) && isset($this->_submitFiles[$base])) {
$props = array('name', 'type', 'size', 'tmp_name', 'error');
$code = "if (!isset(\$this->_submitFiles['{$base}']['name']{$idx})) {\n" .
" return null;\n" .
"} else {\n" .
" \$v = array();\n";
foreach ($props as $prop) {
$code .= " \$v = HTML_QuickForm::arrayMerge(\$v, \$this->_reindexFiles(\$this->_submitFiles['{$base}']['{$prop}']{$idx}, '{$prop}'));\n";
}
$fileValue = eval($code . " return \$v;\n}\n");
if (null !== $fileValue) {
$value = null === $value? $fileValue: HTML_QuickForm::arrayMerge($value, $fileValue);
}
}
}
// This is only supposed to work for groups with appendName = false
if (null === $value && 'group' == $this->getElementType($elementName)) {
$group =& $this->getElement($elementName);
$elements =& $group->getElements();
foreach (array_keys($elements) as $key) {
$name = $group->getElementName($key);
// prevent endless recursion in case of radios and such
if ($name != $elementName) {
if (null !== ($v = $this->getSubmitValue($name))) {
$value[$name] = $v;
}
}
}
}
return $value;
} // end func getSubmitValue
// }}}
// {{{ _reindexFiles()
/**
* A helper function to change the indexes in $_FILES array
*
* @param mixed Some value from the $_FILES array
* @param string The key from the $_FILES array that should be appended
* @return array
*/
function _reindexFiles($value, $key)
{
if (!is_array($value)) {
return array($key => $value);
} else {
$ret = array();
foreach ($value as $k => $v) {
$ret[$k] = $this->_reindexFiles($v, $key);
}
return $ret;
}
}
// }}}
// {{{ getElementError()
/**
* Returns error corresponding to validated element
*
* @param string $element Name of form element to check
* @since 1.0
* @access public
* @return string error message corresponding to checked element
*/
function getElementError($element)
{
if (isset($this->_errors[$element])) {
return $this->_errors[$element];
}
} // end func getElementError
// }}}
// {{{ setElementError()
/**
* Set error message for a form element
*
* @param string $element Name of form element to set error for
* @param string $message Error message, if empty then removes the current error message
* @since 1.0
* @access public
* @return void
*/
function setElementError($element, $message = null)
{
if (!empty($message)) {
$this->_errors[$element] = $message;
} else {
unset($this->_errors[$element]);
}
} // end func setElementError
// }}}
// {{{ getElementType()
/**
* Returns the type of the given element
*
* @param string $element Name of form element
* @since 1.1
* @access public
* @return string Type of the element, false if the element is not found
*/
function getElementType($element)
{
if (isset($this->_elementIndex[$element])) {
return $this->_elements[$this->_elementIndex[$element]]->getType();
}
return false;
} // end func getElementType
// }}}
// {{{ updateElementAttr()
/**
* Updates Attributes for one or more elements
*
* @param mixed $elements Array of element names/objects or string of elements to be updated
* @param mixed $attrs Array or sting of html attributes
* @since 2.10
* @access public
* @return void
*/
function updateElementAttr($elements, $attrs)
{
if (is_string($elements)) {
$elements = preg_split('/[ ]?,[ ]?/', $elements);
}
foreach (array_keys($elements) as $key) {
if (is_object($elements[$key]) && is_a($elements[$key], 'HTML_QuickForm_element')) {
$elements[$key]->updateAttributes($attrs);
} elseif (isset($this->_elementIndex[$elements[$key]])) {
$this->_elements[$this->_elementIndex[$elements[$key]]]->updateAttributes($attrs);
if (isset($this->_duplicateIndex[$elements[$key]])) {
foreach ($this->_duplicateIndex[$elements[$key]] as $index) {
$this->_elements[$index]->updateAttributes($attrs);
}
}
}
}
} // end func updateElementAttr
// }}}
// {{{ removeElement()
/**
* Removes an element
*
* The method "unlinks" an element from the form, returning the reference
* to the element object. If several elements named $elementName exist,
* it removes the first one, leaving the others intact.
*
* @param string $elementName The element name
* @param boolean $removeRules True if rules for this element are to be removed too
* @access public
* @since 2.0
* @return object HTML_QuickForm_element a reference to the removed element
* @throws HTML_QuickForm_Error
*/
function &removeElement($elementName, $removeRules = true)
{
if (!isset($this->_elementIndex[$elementName])) {
$error = self::raiseError(null, QUICKFORM_NONEXIST_ELEMENT, null, E_USER_WARNING, "Element '$elementName' does not exist in HTML_QuickForm::removeElement()", 'HTML_QuickForm_Error', true);
return $error;
}
$el =& $this->_elements[$this->_elementIndex[$elementName]];
unset($this->_elements[$this->_elementIndex[$elementName]]);
if (empty($this->_duplicateIndex[$elementName])) {
unset($this->_elementIndex[$elementName]);
} else {
$this->_elementIndex[$elementName] = array_shift($this->_duplicateIndex[$elementName]);
}
if ($removeRules) {
unset($this->_rules[$elementName], $this->_errors[$elementName]);
}
return $el;
} // end func removeElement