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jpm |
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<?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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// | Alexey Borzov <borz_off@cs.msu.su> |
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// | Bertrand Mansion <bmansion@mamasam.com> |
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// +----------------------------------------------------------------------+
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//
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ddelon |
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// $Id: RuleRegistry.php,v 1.2 2005-09-20 17:01:22 ddelon Exp $
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jpm |
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/**
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* Registers rule objects and uses them for validation
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*
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*/
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class HTML_QuickForm_RuleRegistry
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{
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/**
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* Array containing references to used rules
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* @var array
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* @access private
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*/
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var $_rules = array();
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/**
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* Returns a singleton of HTML_QuickForm_RuleRegistry
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*
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* Usually, only one RuleRegistry object is needed, this is the reason
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* why it is recommended to use this method to get the validation object.
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*
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* @access public
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* @static
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* @return object Reference to the HTML_QuickForm_RuleRegistry singleton
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*/
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function &singleton()
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{
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static $obj;
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if (!isset($obj)) {
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$obj = new HTML_QuickForm_RuleRegistry();
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}
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return $obj;
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} // end func singleton
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/**
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* Registers a new validation rule
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*
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* In order to use a custom rule in your form, you need to register it
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* first. For regular expressions, one can directly use the 'regex' type
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* rule in addRule(), this is faster than registering the rule.
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*
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* Functions and methods can be registered. Use the 'function' type.
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* When registering a method, specify the class name as second parameter.
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*
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* You can also register an HTML_QuickForm_Rule subclass with its own
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* validate() method.
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*
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* @param string $ruleName Name of validation rule
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* @param string $type Either: 'regex', 'function' or null
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* @param string $data1 Name of function, regular expression or
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* HTML_QuickForm_Rule object class name
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* @param string $data2 Object parent of above function or HTML_QuickForm_Rule file path
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* @access public
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* @return void
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*/
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function registerRule($ruleName, $type, $data1, $data2 = null)
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{
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$type = strtolower($type);
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if ($type == 'regex') {
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// Regular expression
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$rule =& $this->getRule('regex');
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$rule->addData($ruleName, $data1);
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$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = $GLOBALS['_HTML_QuickForm_registered_rules']['regex'];
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} elseif ($type == 'function' || $type == 'callback') {
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// Callback function
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$rule =& $this->getRule('callback');
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$rule->addData($ruleName, $data1, $data2, 'function' == $type);
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$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = $GLOBALS['_HTML_QuickForm_registered_rules']['callback'];
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} elseif (is_object($data1)) {
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// An instance of HTML_QuickForm_Rule
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$this->_rules[strtolower(get_class($data1))] = $data1;
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$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = array(strtolower(get_class($data1)), null);
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} else {
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// Rule class name
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$GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName] = array(strtolower($data1), $data2);
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}
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} // end func registerRule
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/**
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* Returns a reference to the requested rule object
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*
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* @param string $ruleName Name of the requested rule
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* @access public
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* @return object
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*/
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function &getRule($ruleName)
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{
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list($class, $path) = $GLOBALS['_HTML_QuickForm_registered_rules'][$ruleName];
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if (!isset($this->_rules[$class])) {
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if (!empty($path)) {
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include_once($path);
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}
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$this->_rules[$class] =& new $class();
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}
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$this->_rules[$class]->setName($ruleName);
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return $this->_rules[$class];
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} // end func getRule
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/**
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* Performs validation on the given values
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*
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* @param string $ruleName Name of the rule to be used
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* @param mixed $values Can be a scalar or an array of values
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* to be validated
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* @param mixed $options Options used by the rule
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* @param mixed $multiple Whether to validate an array of values altogether
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* @access public
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* @return mixed true if no error found, int of valid values (when an array of values is given) or false if error
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*/
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function validate($ruleName, $values, $options = null, $multiple = false)
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{
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$rule =& $this->getRule($ruleName);
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if (is_array($values) && !$multiple) {
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$result = 0;
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foreach ($values as $value) {
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if ($rule->validate($value, $options) === true) {
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$result++;
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}
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}
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return ($result == 0) ? false : $result;
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} else {
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return $rule->validate($values, $options);
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}
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} // end func validate
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/**
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* Returns the validation test in javascript code
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*
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* @param mixed Element(s) the rule applies to
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* @param string Element name, in case $element is not array
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* @param array Rule data
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* @access public
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* @return string JavaScript for the rule
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*/
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function getValidationScript(&$element, $elementName, $ruleData)
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{
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$reset = (isset($ruleData['reset'])) ? $ruleData['reset'] : false;
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$rule =& $this->getRule($ruleData['type']);
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if (!is_array($element)) {
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list($jsValue, $jsReset) = $this->_getJsValue($element, $elementName, $reset, null);
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} else {
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$jsValue = " value = new Array();\n";
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$jsReset = '';
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for ($i = 0; $i < count($element); $i++) {
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list($tmp_value, $tmp_reset) = $this->_getJsValue($element[$i], $element[$i]->getName(), $reset, $i);
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$jsValue .= "\n" . $tmp_value;
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$jsReset .= $tmp_reset;
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}
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}
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$jsField = isset($ruleData['group'])? $ruleData['group']: $elementName;
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list ($jsPrefix, $jsCheck) = $rule->getValidationScript($ruleData['format']);
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if (!isset($ruleData['howmany'])) {
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$js = $jsValue . "\n" . $jsPrefix .
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" if (" . str_replace('{jsVar}', 'value', $jsCheck) . " && !errFlag['{$jsField}']) {\n" .
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" errFlag['{$jsField}'] = true;\n" .
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" _qfMsg = _qfMsg + '\\n - {$ruleData['message']}';\n" .
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$jsReset .
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" }\n";
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} else {
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$js = $jsValue . "\n" . $jsPrefix .
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" var res = 0;\n" .
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" for (var i = 0; i < value.length; i++) {\n" .
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" if (!(" . str_replace('{jsVar}', 'value[i]', $jsCheck) . ")) {\n" .
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" res++;\n" .
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" }\n" .
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" }\n" .
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" if (res < {$ruleData['howmany']} && !errFlag['{$jsField}']) {\n" .
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" errFlag['{$jsField}'] = true;\n" .
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" _qfMsg = _qfMsg + '\\n - {$ruleData['message']}';\n" .
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$jsReset .
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" }\n";
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}
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return $js;
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} // end func getValidationScript
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/**
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* Returns JavaScript to get and to reset the element's value
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*
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* @access private
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* @param object HTML_QuickForm_element element being processed
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* @param string element's name
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* @param bool whether to generate JavaScript to reset the value
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* @param integer value's index in the array (only used for multielement rules)
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* @return array first item is value javascript, second is reset
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*/
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function _getJsValue(&$element, $elementName, $reset = false, $index = null)
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{
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$jsIndex = isset($index)? '[' . $index . ']': '';
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$tmp_reset = $reset? " var field = frm.elements['$elementName'];\n": '';
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if (is_a($element, 'html_quickform_group')) {
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ddelon |
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$value = " _qfGroups['{$elementName}'] = {";
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$elements =& $element->getElements();
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for ($i = 0, $count = count($elements); $i < $count; $i++) {
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$append = ($elements[$i]->getType() == 'select' && $elements[$i]->getMultiple())? '[]': '';
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$value .= "'" . $element->getElementName($i) . $append . "': true" .
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($i < $count - 1? ', ': '');
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jpm |
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}
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$value .=
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ddelon |
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"};\n" .
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jpm |
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" value{$jsIndex} = new Array();\n" .
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" var valueIdx = 0;\n" .
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" for (var i = 0; i < frm.elements.length; i++) {\n" .
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" var _element = frm.elements[i];\n" .
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ddelon |
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" if (_element.name in _qfGroups['{$elementName}']) {\n" .
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jpm |
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" switch (_element.type) {\n" .
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" case 'checkbox':\n" .
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" case 'radio':\n" .
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" if (_element.checked) {\n" .
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" value{$jsIndex}[valueIdx++] = _element.value;\n" .
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" }\n" .
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" break;\n" .
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ddelon |
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" case 'select-one':\n" .
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jpm |
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" if (-1 != _element.selectedIndex) {\n" .
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" value{$jsIndex}[valueIdx++] = _element.options[_element.selectedIndex].value;\n" .
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" }\n" .
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" break;\n" .
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ddelon |
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" case 'select-multiple':\n" .
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" var tmpVal = new Array();\n" .
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" var tmpIdx = 0;\n" .
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" for (var j = 0; j < _element.options.length; j++) {\n" .
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" if (_element.options[j].selected) {\n" .
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" tmpVal[tmpIdx++] = _element.options[j].value;\n" .
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" }\n" .
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" }\n" .
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" if (tmpIdx > 0) {\n" .
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" value{$jsIndex}[valueIdx++] = tmpVal;\n" .
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" }\n" .
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" break;\n" .
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jpm |
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" default:\n" .
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" value{$jsIndex}[valueIdx++] = _element.value;\n" .
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" }\n" .
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" }\n" .
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" }\n";
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if ($reset) {
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$tmp_reset =
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" for (var i = 0; i < frm.elements.length; i++) {\n" .
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" var _element = frm.elements[i];\n" .
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ddelon |
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" if (_element.name in _qfGroups['{$elementName}']) {\n" .
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jpm |
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" switch (_element.type) {\n" .
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" case 'checkbox':\n" .
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" case 'radio':\n" .
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" _element.checked = _element.defaultChecked;\n" .
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" break;\n" .
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ddelon |
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" case 'select-one':\n" .
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" case 'select-multiple:\n" .
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jpm |
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" for (var j = 0; j < _element.options.length; j++) {\n" .
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" _element.options[j].selected = _element.options[j].defaultSelected;\n" .
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" }\n" .
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" break;\n" .
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" default:\n" .
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" _element.value = _element.defaultValue;\n" .
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" }\n" .
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" }\n" .
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" }\n";
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}
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} elseif ($element->getType() == 'select') {
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if ($element->getMultiple()) {
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$elementName .= '[]';
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$value =
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" value{$jsIndex} = new Array();\n" .
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" var valueIdx = 0;\n" .
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" for (var i = 0; i < frm.elements['{$elementName}'].options.length; i++) {\n" .
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" if (frm.elements['{$elementName}'].options[i].selected) {\n" .
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" value{$jsIndex}[valueIdx++] = frm.elements['{$elementName}'].options[i].value;\n" .
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" }\n" .
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" }\n";
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} else {
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ddelon |
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$value = " value{$jsIndex} = frm.elements['{$elementName}'].selectedIndex == -1? '': frm.elements['{$elementName}'].options[frm.elements['{$elementName}'].selectedIndex].value;\n";
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jpm |
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}
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if ($reset) {
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$tmp_reset .=
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" for (var i = 0; i < field.options.length; i++) {\n" .
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" field.options[i].selected = field.options[i].defaultSelected;\n" .
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" }\n";
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}
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ddelon |
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} elseif ($element->getType() == 'checkbox' && !is_a($element, 'html_quickform_advcheckbox')) {
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jpm |
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$value = " if (frm.elements['$elementName'].checked) {\n" .
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" value{$jsIndex} = '1';\n" .
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" } else {\n" .
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" value{$jsIndex} = '';\n" .
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" }";
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$tmp_reset .= ($reset) ? " field.checked = field.defaultChecked;\n" : '';
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} elseif ($element->getType() == 'radio') {
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$value = " value{$jsIndex} = '';\n" .
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" for (var i = 0; i < frm.elements['$elementName'].length; i++) {\n" .
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" if (frm.elements['$elementName'][i].checked) {\n" .
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" value{$jsIndex} = frm.elements['$elementName'][i].value;\n" .
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" }\n" .
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" }";
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if ($reset) {
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$tmp_reset .= " for (var i = 0; i < field.length; i++) {\n" .
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" field[i].checked = field[i].defaultChecked;\n" .
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323 |
" }";
|
|
|
324 |
}
|
|
|
325 |
|
|
|
326 |
} else {
|
|
|
327 |
$value = " value{$jsIndex} = frm.elements['$elementName'].value;";
|
|
|
328 |
$tmp_reset .= ($reset) ? " field.value = field.defaultValue;\n" : '';
|
|
|
329 |
}
|
|
|
330 |
return array($value, $tmp_reset);
|
|
|
331 |
}
|
|
|
332 |
} // end class HTML_QuickForm_RuleRegistry
|
|
|
333 |
?>
|