* @link http://www.yiiframework.com/ * @copyright 2008-2013 Yii Software LLC * @license http://www.yiiframework.com/license/ */ /** * CActiveForm provides a set of methods that can help to simplify the creation * of complex and interactive HTML forms that are associated with data models. * * The 'beginWidget' and 'endWidget' call of CActiveForm widget will render * the open and close form tags. Most other methods of CActiveForm are wrappers * of the corresponding 'active' methods in {@link CHtml}. Calling them in between * the 'beginWidget' and 'endWidget' calls will render text labels, input fields, * etc. For example, calling {@link CActiveForm::textField} * would generate an input field for a specified model attribute. * * What makes CActiveForm extremely useful is its support for data validation. * CActiveForm supports data validation at three levels: * * * All these validations share the same set of validation rules declared in * the associated model class. CActiveForm is designed in such a way that * all these validations will lead to the same user interface changes and error * message content. * * To ensure data validity, server-side validation is always performed. * By setting {@link enableAjaxValidation} to true, one can enable AJAX-based validation; * and by setting {@link enableClientValidation} to true, one can enable client-side validation. * Note that in order to make the latter two validations work, the user's browser * must has its JavaScript enabled. If not, only the server-side validation will * be performed. * * The AJAX-based validation and client-side validation may be used together * or separately. For example, in a user registration form, one may use AJAX-based * validation to check if the user has picked a unique username, and use client-side * validation to ensure all required fields are entered with data. * Because the AJAX-based validation may bring extra workload on the server, * if possible, one should mainly use client-side validation. * * The AJAX-based validation has a few limitations. First, it does not work * with file upload fields. Second, it should not be used to perform validations that * may cause server-side state changes. Third, it is not designed * to work with tabular data input for the moment. * * Support for client-side validation varies for different validators. A validator * will support client-side validation only if it implements {@link CValidator::clientValidateAttribute} * and has its {@link CValidator::enableClientValidation} property set true. * At this moment, the following core validators support client-side validation: * * * CActiveForm relies on CSS to customize the appearance of input fields * which are in different validation states. In particular, each input field * may be one of the four states: initial (not validated), * validating, error and success. To differentiate these states, CActiveForm * automatically assigns different CSS classes for the last three states * to the HTML element containing the input field. * By default, these CSS classes are named as 'validating', 'error' and 'success', * respectively. We may customize these CSS classes by configuring the * {@link clientOptions} property or specifying in the {@link error} method. * * The following is a piece of sample view code showing how to use CActiveForm: * *
 * beginWidget('CActiveForm', array(
 *     'id'=>'user-form',
 *     'enableAjaxValidation'=>true,
 *     'enableClientValidation'=>true,
 *     'focus'=>array($model,'firstName'),
 * )); ?>
 *
 * errorSummary($model); ?>
 *
 * 
* labelEx($model,'firstName'); ?> * textField($model,'firstName'); ?> * error($model,'firstName'); ?> *
*
* labelEx($model,'lastName'); ?> * textField($model,'lastName'); ?> * error($model,'lastName'); ?> *
* * endWidget(); ?> *
* * To respond to the AJAX validation requests, we need the following class code: *
 * public function actionCreate()
 * {
 *     $model=new User;
 *     $this->performAjaxValidation($model);
 *     if(isset($_POST['User']))
 *     {
 *         $model->attributes=$_POST['User'];
 *         if($model->save())
 *             $this->redirect('index');
 *     }
 *     $this->render('create',array('model'=>$model));
 * }
 *
 * protected function performAjaxValidation($model)
 * {
 *     if(isset($_POST['ajax']) && $_POST['ajax']==='user-form')
 *     {
 *         echo CActiveForm::validate($model);
 *         Yii::app()->end();
 *     }
 * }
 * 
* * In the above code, if we do not enable the AJAX-based validation, we can remove * the performAjaxValidation method and its invocation. * * @author Qiang Xue * @package system.web.widgets * @since 1.1.1 */ class CActiveForm extends CWidget { /** * @var mixed the form action URL (see {@link CHtml::normalizeUrl} for details about this parameter). * If not set, the current page URL is used. */ public $action=''; /** * @var string the form submission method. This should be either 'post' or 'get'. * Defaults to 'post'. */ public $method='post'; /** * @var boolean whether to generate a stateful form (See {@link CHtml::statefulForm}). Defaults to false. */ public $stateful=false; /** * @var string the CSS class name for error messages. * Since 1.1.14 this defaults to 'errorMessage' defined in {@link CHtml::$errorMessageCss}. * Individual {@link error} call may override this value by specifying the 'class' HTML option. */ public $errorMessageCssClass; /** * @var array additional HTML attributes that should be rendered for the form tag. */ public $htmlOptions=array(); /** * @var array the options to be passed to the javascript validation plugin. * The following options are supported: * * * Some of the above options may be overridden in individual calls of {@link error()}. * They include: validationDelay, validateOnChange, validateOnType, hideErrorMessage, * inputContainer, errorCssClass, successCssClass, validatingCssClass, beforeValidateAttribute, afterValidateAttribute. */ public $clientOptions=array(); /** * @var boolean whether to enable data validation via AJAX. Defaults to false. * When this property is set true, you should respond to the AJAX validation request on the server side as shown below: *
	 * public function actionCreate()
	 * {
	 *     $model=new User;
	 *     if(isset($_POST['ajax']) && $_POST['ajax']==='user-form')
	 *     {
	 *         echo CActiveForm::validate($model);
	 *         Yii::app()->end();
	 *     }
	 *     ......
	 * }
	 * 
*/ public $enableAjaxValidation=false; /** * @var boolean whether to enable client-side data validation. Defaults to false. * * When this property is set true, client-side validation will be performed by validators * that support it (see {@link CValidator::enableClientValidation} and {@link CValidator::clientValidateAttribute}). * * @see error * @since 1.1.7 */ public $enableClientValidation=false; /** * @var mixed form element to get initial input focus on page load. * * Defaults to null meaning no input field has a focus. * If set as array, first element should be model and second element should be the attribute. * If set as string any jQuery selector can be used * * Example - set input focus on page load to: * * * @since 1.1.4 */ public $focus; /** * @var array the javascript options for model attributes (input ID => options) * @see error * @since 1.1.7 */ protected $attributes=array(); /** * @var string the ID of the container element for error summary * @see errorSummary * @since 1.1.7 */ protected $summaryID; /** * @var string[] attribute IDs to be used to display error summary. * @since 1.1.14 */ private $_summaryAttributes=array(); /** * Initializes the widget. * This renders the form open tag. */ public function init() { if(!isset($this->htmlOptions['id'])) $this->htmlOptions['id']=$this->id; else $this->id=$this->htmlOptions['id']; if($this->stateful) echo CHtml::statefulForm($this->action, $this->method, $this->htmlOptions); else echo CHtml::beginForm($this->action, $this->method, $this->htmlOptions); if($this->errorMessageCssClass===null) $this->errorMessageCssClass=CHtml::$errorMessageCss; } /** * Runs the widget. * This registers the necessary javascript code and renders the form close tag. */ public function run() { if(is_array($this->focus)) $this->focus="#".CHtml::activeId($this->focus[0],$this->focus[1]); echo CHtml::endForm(); $cs=Yii::app()->clientScript; if(!$this->enableAjaxValidation && !$this->enableClientValidation || empty($this->attributes)) { if($this->focus!==null) { $cs->registerCoreScript('jquery'); $cs->registerScript('CActiveForm#focus'," if(!window.location.hash) jQuery('".$this->focus."').focus(); "); } return; } $options=$this->clientOptions; if(isset($this->clientOptions['validationUrl']) && is_array($this->clientOptions['validationUrl'])) $options['validationUrl']=CHtml::normalizeUrl($this->clientOptions['validationUrl']); foreach($this->_summaryAttributes as $attribute) $this->attributes[$attribute]['summary']=true; $options['attributes']=array_values($this->attributes); if($this->summaryID!==null) $options['summaryID']=$this->summaryID; if($this->focus!==null) $options['focus']=$this->focus; if(!empty(CHtml::$errorCss)) $options['errorCss']=CHtml::$errorCss; $options=CJavaScript::encode($options); $cs->registerCoreScript('yiiactiveform'); $id=$this->id; $cs->registerScript(__CLASS__.'#'.$id,"jQuery('#$id').yiiactiveform($options);"); } /** * Displays the first validation error for a model attribute. * This is similar to {@link CHtml::error} except that it registers the model attribute * so that if its value is changed by users, an AJAX validation may be triggered. * @param CModel $model the data model * @param string $attribute the attribute name * @param array $htmlOptions additional HTML attributes to be rendered in the container div tag. * Besides all those options available in {@link CHtml::error}, the following options are recognized in addition: * * These options override the corresponding options as declared in {@link options} for this * particular model attribute. For more details about these options, please refer to {@link clientOptions}. * Note that these options are only used when {@link enableAjaxValidation} or {@link enableClientValidation} * is set true. * * When an CActiveForm input field uses a custom ID, for ajax/client validation to work properly * inputID should be set to the same ID * * Example: *
	 * 
* labelEx($model,'attribute'); ?> * textField($model,'attribute', array('id'=>'custom-id')); ?> * error($model,'attribute',array('inputID'=>'custom-id')); ?> *
*
* * When client-side validation is enabled, an option named "clientValidation" is also recognized. * This option should take a piece of JavaScript code to perform client-side validation. In the code, * the variables are predefined: * * This should NOT be a function but just the code, Yii will enclose the code you provide inside the * actual JS function. * @param boolean $enableAjaxValidation whether to enable AJAX validation for the specified attribute. * Note that in order to enable AJAX validation, both {@link enableAjaxValidation} and this parameter * must be true. * @param boolean $enableClientValidation whether to enable client-side validation for the specified attribute. * Note that in order to enable client-side validation, both {@link enableClientValidation} and this parameter * must be true. This parameter has been available since version 1.1.7. * @return string the validation result (error display or success message). * @see CHtml::error */ public function error($model,$attribute,$htmlOptions=array(),$enableAjaxValidation=true,$enableClientValidation=true) { if(!$this->enableAjaxValidation) $enableAjaxValidation=false; if(!$this->enableClientValidation) $enableClientValidation=false; if(!isset($htmlOptions['class'])) $htmlOptions['class']=$this->errorMessageCssClass; if(!$enableAjaxValidation && !$enableClientValidation) return CHtml::error($model,$attribute,$htmlOptions); $id=CHtml::activeId($model,$attribute); $inputID=isset($htmlOptions['inputID']) ? $htmlOptions['inputID'] : $id; unset($htmlOptions['inputID']); if(!isset($htmlOptions['id'])) $htmlOptions['id']=$inputID.'_em_'; $option=array( 'id'=>$id, 'inputID'=>$inputID, 'errorID'=>$htmlOptions['id'], 'model'=>get_class($model), 'name'=>$attribute, 'enableAjaxValidation'=>$enableAjaxValidation, ); $optionNames=array( 'validationDelay', 'validateOnChange', 'validateOnType', 'hideErrorMessage', 'inputContainer', 'errorCssClass', 'successCssClass', 'validatingCssClass', 'beforeValidateAttribute', 'afterValidateAttribute', ); foreach($optionNames as $name) { if(isset($htmlOptions[$name])) { $option[$name]=$htmlOptions[$name]; unset($htmlOptions[$name]); } } if($model instanceof CActiveRecord && !$model->isNewRecord) $option['status']=1; if($enableClientValidation) { $validators=isset($htmlOptions['clientValidation']) ? array($htmlOptions['clientValidation']) : array(); unset($htmlOptions['clientValidation']); $attributeName = $attribute; if(($pos=strrpos($attribute,']'))!==false && $pos!==strlen($attribute)-1) // e.g. [a]name { $attributeName=substr($attribute,$pos+1); } foreach($model->getValidators($attributeName) as $validator) { if($validator->enableClientValidation) { if(($js=$validator->clientValidateAttribute($model,$attributeName))!='') $validators[]=$js; } } if($validators!==array()) $option['clientValidation']=new CJavaScriptExpression("function(value, messages, attribute) {\n".implode("\n",$validators)."\n}"); } $html=CHtml::error($model,$attribute,$htmlOptions); if($html==='') { if(isset($htmlOptions['style'])) $htmlOptions['style']=rtrim($htmlOptions['style'],';').';display:none'; else $htmlOptions['style']='display:none'; $html=CHtml::tag(CHtml::$errorContainerTag,$htmlOptions,''); } $this->attributes[$inputID]=$option; return $html; } /** * Displays a summary of validation errors for one or several models. * This method is very similar to {@link CHtml::errorSummary} except that it also works * when AJAX validation is performed. * @param mixed $models the models whose input errors are to be displayed. This can be either * a single model or an array of models. * @param string $header a piece of HTML code that appears in front of the errors * @param string $footer a piece of HTML code that appears at the end of the errors * @param array $htmlOptions additional HTML attributes to be rendered in the container div tag. * @return string the error summary. Empty if no errors are found. * @see CHtml::errorSummary */ public function errorSummary($models,$header=null,$footer=null,$htmlOptions=array()) { if(!$this->enableAjaxValidation && !$this->enableClientValidation) return CHtml::errorSummary($models,$header,$footer,$htmlOptions); if(!isset($htmlOptions['id'])) $htmlOptions['id']=$this->id.'_es_'; $html=CHtml::errorSummary($models,$header,$footer,$htmlOptions); if($html==='') { if($header===null) $header='

'.Yii::t('yii','Please fix the following input errors:').'

'; if(!isset($htmlOptions['class'])) $htmlOptions['class']=CHtml::$errorSummaryCss; $htmlOptions['style']=isset($htmlOptions['style']) ? rtrim($htmlOptions['style'],';').';display:none' : 'display:none'; $html=CHtml::tag('div',$htmlOptions,$header."\n".$footer); } $this->summaryID=$htmlOptions['id']; foreach(is_array($models) ? $models : array($models) as $model) foreach($model->getSafeAttributeNames() as $attribute) $this->_summaryAttributes[]=CHtml::activeId($model,$attribute); return $html; } /** * Renders an HTML label for a model attribute. * This method is a wrapper of {@link CHtml::activeLabel}. * Please check {@link CHtml::activeLabel} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated label tag */ public function label($model,$attribute,$htmlOptions=array()) { return CHtml::activeLabel($model,$attribute,$htmlOptions); } /** * Renders an HTML label for a model attribute. * This method is a wrapper of {@link CHtml::activeLabelEx}. * Please check {@link CHtml::activeLabelEx} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated label tag */ public function labelEx($model,$attribute,$htmlOptions=array()) { return CHtml::activeLabelEx($model,$attribute,$htmlOptions); } /** * Renders a url field for a model attribute. * This method is a wrapper of {@link CHtml::activeUrlField}. * Please check {@link CHtml::activeUrlField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.11 */ public function urlField($model,$attribute,$htmlOptions=array()) { return CHtml::activeUrlField($model,$attribute,$htmlOptions); } /** * Renders an email field for a model attribute. * This method is a wrapper of {@link CHtml::activeEmailField}. * Please check {@link CHtml::activeEmailField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.11 */ public function emailField($model,$attribute,$htmlOptions=array()) { return CHtml::activeEmailField($model,$attribute,$htmlOptions); } /** * Renders a number field for a model attribute. * This method is a wrapper of {@link CHtml::activeNumberField}. * Please check {@link CHtml::activeNumberField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.11 */ public function numberField($model,$attribute,$htmlOptions=array()) { return CHtml::activeNumberField($model,$attribute,$htmlOptions); } /** * Generates a range field for a model attribute. * This method is a wrapper of {@link CHtml::activeRangeField}. * Please check {@link CHtml::activeRangeField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.11 */ public function rangeField($model,$attribute,$htmlOptions=array()) { return CHtml::activeRangeField($model,$attribute,$htmlOptions); } /** * Renders a date field for a model attribute. * This method is a wrapper of {@link CHtml::activeDateField}. * Please check {@link CHtml::activeDateField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.11 */ public function dateField($model,$attribute,$htmlOptions=array()) { return CHtml::activeDateField($model,$attribute,$htmlOptions); } /** * Renders a time field for a model attribute. * This method is a wrapper of {@link CHtml::activeTimeField}. * Please check {@link CHtml::activeTimeField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.14 */ public function timeField($model,$attribute,$htmlOptions=array()) { return CHtml::activeTimeField($model,$attribute,$htmlOptions); } /** * Renders a time field for a model attribute. * This method is a wrapper of {@link CHtml::activeTimeField}. * Please check {@link CHtml::activeTimeField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.14 */ public function telField($model,$attribute,$htmlOptions=array()) { return CHtml::activeTelField($model,$attribute,$htmlOptions); } /** * Renders a text field for a model attribute. * This method is a wrapper of {@link CHtml::activeTextField}. * Please check {@link CHtml::activeTextField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field */ public function textField($model,$attribute,$htmlOptions=array()) { return CHtml::activeTextField($model,$attribute,$htmlOptions); } /** * Renders a search field for a model attribute. * This method is a wrapper of {@link CHtml::activeSearchField}. * Please check {@link CHtml::activeSearchField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field * @since 1.1.14 */ public function searchField($model,$attribute,$htmlOptions=array()) { return CHtml::activeSearchField($model,$attribute,$htmlOptions); } /** * Renders a hidden field for a model attribute. * This method is a wrapper of {@link CHtml::activeHiddenField}. * Please check {@link CHtml::activeHiddenField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field */ public function hiddenField($model,$attribute,$htmlOptions=array()) { return CHtml::activeHiddenField($model,$attribute,$htmlOptions); } /** * Renders a password field for a model attribute. * This method is a wrapper of {@link CHtml::activePasswordField}. * Please check {@link CHtml::activePasswordField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated input field */ public function passwordField($model,$attribute,$htmlOptions=array()) { return CHtml::activePasswordField($model,$attribute,$htmlOptions); } /** * Renders a text area for a model attribute. * This method is a wrapper of {@link CHtml::activeTextArea}. * Please check {@link CHtml::activeTextArea} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated text area */ public function textArea($model,$attribute,$htmlOptions=array()) { return CHtml::activeTextArea($model,$attribute,$htmlOptions); } /** * Renders a file field for a model attribute. * This method is a wrapper of {@link CHtml::activeFileField}. * Please check {@link CHtml::activeFileField} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes * @return string the generated input field */ public function fileField($model,$attribute,$htmlOptions=array()) { return CHtml::activeFileField($model,$attribute,$htmlOptions); } /** * Renders a radio button for a model attribute. * This method is a wrapper of {@link CHtml::activeRadioButton}. * Please check {@link CHtml::activeRadioButton} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated radio button */ public function radioButton($model,$attribute,$htmlOptions=array()) { return CHtml::activeRadioButton($model,$attribute,$htmlOptions); } /** * Renders a checkbox for a model attribute. * This method is a wrapper of {@link CHtml::activeCheckBox}. * Please check {@link CHtml::activeCheckBox} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $htmlOptions additional HTML attributes. * @return string the generated check box */ public function checkBox($model,$attribute,$htmlOptions=array()) { return CHtml::activeCheckBox($model,$attribute,$htmlOptions); } /** * Renders a dropdown list for a model attribute. * This method is a wrapper of {@link CHtml::activeDropDownList}. * Please check {@link CHtml::activeDropDownList} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $data data for generating the list options (value=>display) * @param array $htmlOptions additional HTML attributes. * @return string the generated drop down list */ public function dropDownList($model,$attribute,$data,$htmlOptions=array()) { return CHtml::activeDropDownList($model,$attribute,$data,$htmlOptions); } /** * Renders a list box for a model attribute. * This method is a wrapper of {@link CHtml::activeListBox}. * Please check {@link CHtml::activeListBox} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $data data for generating the list options (value=>display) * @param array $htmlOptions additional HTML attributes. * @return string the generated list box */ public function listBox($model,$attribute,$data,$htmlOptions=array()) { return CHtml::activeListBox($model,$attribute,$data,$htmlOptions); } /** * Renders a checkbox list for a model attribute. * This method is a wrapper of {@link CHtml::activeCheckBoxList}. * Please check {@link CHtml::activeCheckBoxList} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $data value-label pairs used to generate the check box list. * @param array $htmlOptions addtional HTML options. * @return string the generated check box list */ public function checkBoxList($model,$attribute,$data,$htmlOptions=array()) { return CHtml::activeCheckBoxList($model,$attribute,$data,$htmlOptions); } /** * Renders a radio button list for a model attribute. * This method is a wrapper of {@link CHtml::activeRadioButtonList}. * Please check {@link CHtml::activeRadioButtonList} for detailed information * about the parameters for this method. * @param CModel $model the data model * @param string $attribute the attribute * @param array $data value-label pairs used to generate the radio button list. * @param array $htmlOptions addtional HTML options. * @return string the generated radio button list */ public function radioButtonList($model,$attribute,$data,$htmlOptions=array()) { return CHtml::activeRadioButtonList($model,$attribute,$data,$htmlOptions); } /** * Validates one or several models and returns the results in JSON format. * This is a helper method that simplifies the way of writing AJAX validation code. * @param mixed $models a single model instance or an array of models. * @param array $attributes list of attributes that should be validated. Defaults to null, * meaning any attribute listed in the applicable validation rules of the models should be * validated. If this parameter is given as a list of attributes, only * the listed attributes will be validated. * @param boolean $loadInput whether to load the data from $_POST array in this method. * If this is true, the model will be populated from $_POST[ModelClass]. * @return string the JSON representation of the validation error messages. */ public static function validate($models, $attributes=null, $loadInput=true) { $result=array(); if(!is_array($models)) $models=array($models); foreach($models as $model) { $modelName=CHtml::modelName($model); if($loadInput && isset($_POST[$modelName])) $model->attributes=$_POST[$modelName]; $model->validate($attributes); foreach($model->getErrors() as $attribute=>$errors) $result[CHtml::activeId($model,$attribute)]=$errors; } return function_exists('json_encode') ? json_encode($result) : CJSON::encode($result); } /** * Validates an array of model instances and returns the results in JSON format. * This is a helper method that simplifies the way of writing AJAX validation code for tabular input. * @param mixed $models an array of model instances. * @param array $attributes list of attributes that should be validated. Defaults to null, * meaning any attribute listed in the applicable validation rules of the models should be * validated. If this parameter is given as a list of attributes, only * the listed attributes will be validated. * @param boolean $loadInput whether to load the data from $_POST array in this method. * If this is true, the model will be populated from $_POST[ModelClass][$i]. * @return string the JSON representation of the validation error messages. */ public static function validateTabular($models, $attributes=null, $loadInput=true) { $result=array(); if(!is_array($models)) $models=array($models); foreach($models as $i=>$model) { $modelName=CHtml::modelName($model); if($loadInput && isset($_POST[$modelName][$i])) $model->attributes=$_POST[$modelName][$i]; $model->validate($attributes); foreach($model->getErrors() as $attribute=>$errors) $result[CHtml::activeId($model,'['.$i.']'.$attribute)]=$errors; } return function_exists('json_encode') ? json_encode($result) : CJSON::encode($result); } }