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339 lines
12 KiB
PHP
339 lines
12 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\widgets;
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use Yii;
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use yii\base\Widget;
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use yii\base\Model;
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use yii\helpers\Url;
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use yii\helpers\Html;
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use yii\helpers\Json;
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use yii\web\JsExpression;
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/**
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* ActiveForm ...
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class ActiveForm extends Widget
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{
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/**
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* @param array|string $action the form action URL. This parameter will be processed by [[\yii\helpers\Url::to()]].
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*/
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public $action = '';
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/**
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* @var string the form submission method. This should be either 'post' or 'get'.
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* Defaults to 'post'.
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*/
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public $method = 'post';
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/**
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* @var array the HTML attributes (name-value pairs) for the form tag.
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* @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
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*/
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public $options = [];
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/**
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* @var array the default configuration used by [[field()]] when creating a new field object.
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*/
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public $fieldConfig;
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/**
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* @var string the default CSS class for the error summary container.
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* @see errorSummary()
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*/
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public $errorSummaryCssClass = 'error-summary';
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/**
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* @var string the CSS class that is added to a field container when the associated attribute is required.
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*/
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public $requiredCssClass = 'required';
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/**
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* @var string the CSS class that is added to a field container when the associated attribute has validation error.
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*/
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public $errorCssClass = 'has-error';
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/**
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* @var string the CSS class that is added to a field container when the associated attribute is successfully validated.
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*/
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public $successCssClass = 'has-success';
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/**
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* @var string the CSS class that is added to a field container when the associated attribute is being validated.
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*/
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public $validatingCssClass = 'validating';
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/**
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* @var boolean whether to enable client-side data validation.
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* If [[ActiveField::enableClientValidation]] is set, its value will take precedence for that input field.
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*/
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public $enableClientValidation = true;
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/**
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* @var boolean whether to enable AJAX-based data validation.
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* If [[ActiveField::enableAjaxValidation]] is set, its value will take precedence for that input field.
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*/
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public $enableAjaxValidation = false;
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/**
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* @var array|string the URL for performing AJAX-based validation. This property will be processed by
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* [[Url::to()]]. Please refer to [[Url::to()]] for more details on how to configure this property.
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* If this property is not set, it will take the value of the form's action attribute.
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*/
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public $validationUrl;
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/**
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* @var boolean whether to perform validation when the form is submitted.
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*/
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public $validateOnSubmit = true;
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/**
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* @var boolean whether to perform validation when an input field loses focus and its value is found changed.
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* If [[ActiveField::validateOnChange]] is set, its value will take precedence for that input field.
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*/
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public $validateOnChange = true;
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/**
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* @var boolean whether to perform validation while the user is typing in an input field.
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* If [[ActiveField::validateOnType]] is set, its value will take precedence for that input field.
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* @see validationDelay
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*/
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public $validateOnType = false;
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/**
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* @var integer number of milliseconds that the validation should be delayed when an input field
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* is changed or the user types in the field.
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* If [[ActiveField::validationDelay]] is set, its value will take precedence for that input field.
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*/
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public $validationDelay = 200;
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/**
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* @var string the name of the GET parameter indicating the validation request is an AJAX request.
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*/
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public $ajaxParam = 'ajax';
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/**
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* @var string the type of data that you're expecting back from the server.
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*/
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public $ajaxDataType = 'json';
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/**
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* @var string|JsExpression a JS callback that will be called when the form is being submitted.
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* The signature of the callback should be:
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*
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* ~~~
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* function ($form) {
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* ...return false to cancel submission...
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* }
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* ~~~
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*/
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public $beforeSubmit;
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/**
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* @var string|JsExpression a JS callback that is called before validating an attribute.
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* The signature of the callback should be:
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*
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* ~~~
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* function ($form, attribute, messages) {
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* ...return false to cancel the validation...
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* }
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* ~~~
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*/
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public $beforeValidate;
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/**
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* @var string|JsExpression a JS callback that is called after validating an attribute.
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* The signature of the callback should be:
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*
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* ~~~
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* function ($form, attribute, messages) {
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* }
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* ~~~
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*/
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public $afterValidate;
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/**
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* @var array the client validation options for individual attributes. Each element of the array
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* represents the validation options for a particular attribute.
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* @internal
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*/
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public $attributes = [];
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/**
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* Initializes the widget.
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* This renders the form open tag.
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*/
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public function init()
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{
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if (!isset($this->options['id'])) {
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$this->options['id'] = $this->getId();
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}
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if (!isset($this->fieldConfig['class'])) {
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$this->fieldConfig['class'] = ActiveField::className();
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}
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echo Html::beginForm($this->action, $this->method, $this->options);
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}
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/**
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* Runs the widget.
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* This registers the necessary javascript code and renders the form close tag.
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*/
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public function run()
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{
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if (!empty($this->attributes)) {
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$id = $this->options['id'];
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$options = Json::encode($this->getClientOptions());
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$attributes = Json::encode($this->attributes);
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$view = $this->getView();
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ActiveFormAsset::register($view);
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$view->registerJs("jQuery('#$id').yiiActiveForm($attributes, $options);");
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}
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echo Html::endForm();
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}
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/**
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* Returns the options for the form JS widget.
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* @return array the options
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*/
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protected function getClientOptions()
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{
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$options = [
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'errorSummary' => '.' . $this->errorSummaryCssClass,
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'validateOnSubmit' => $this->validateOnSubmit,
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'errorCssClass' => $this->errorCssClass,
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'successCssClass' => $this->successCssClass,
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'validatingCssClass' => $this->validatingCssClass,
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'ajaxParam' => $this->ajaxParam,
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'ajaxDataType' => $this->ajaxDataType,
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];
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if ($this->validationUrl !== null) {
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$options['validationUrl'] = Url::to($this->validationUrl);
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}
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foreach (['beforeSubmit', 'beforeValidate', 'afterValidate'] as $name) {
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if (($value = $this->$name) !== null) {
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$options[$name] = $value instanceof JsExpression ? $value : new JsExpression($value);
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}
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}
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return $options;
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}
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/**
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* Generates a summary of the validation errors.
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* If there is no validation error, an empty error summary markup will still be generated, but it will be hidden.
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* @param Model|Model[] $models the model(s) associated with this form
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* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
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*
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* - header: string, the header HTML for the error summary. If not set, a default prompt string will be used.
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* - footer: string, the footer HTML for the error summary.
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*
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* The rest of the options will be rendered as the attributes of the container tag. The values will
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* be HTML-encoded using [[\yii\helpers\Html::encode()]]. If a value is null, the corresponding attribute will not be rendered.
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* @return string the generated error summary
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* @see errorSummaryCssClass
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*/
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public function errorSummary($models, $options = [])
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{
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Html::addCssClass($options, $this->errorSummaryCssClass);
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return Html::errorSummary($models, $options);
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}
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/**
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* Generates a form field.
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* A form field is associated with a model and an attribute. It contains a label, an input and an error message
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* and use them to interact with end users to collect their inputs for the attribute.
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* @param Model $model the data model
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* @param string $attribute the attribute name or expression. See [[Html::getAttributeName()]] for the format
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* about attribute expression.
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* @param array $options the additional configurations for the field object
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* @return ActiveField the created ActiveField object
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* @see fieldConfig
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*/
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public function field($model, $attribute, $options = [])
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{
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return Yii::createObject(array_merge($this->fieldConfig, $options, [
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'model' => $model,
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'attribute' => $attribute,
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'form' => $this,
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]));
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}
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/**
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* Validates one or several models and returns an error message array indexed by the attribute IDs.
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* This is a helper method that simplifies the way of writing AJAX validation code.
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*
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* For example, you may use the following code in a controller action to respond
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* to an AJAX validation request:
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*
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* ~~~
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* $model = new Post;
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* $model->load($_POST);
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* if (Yii::$app->request->isAjax) {
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* Yii::$app->response->format = Response::FORMAT_JSON;
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* return ActiveForm::validate($model);
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* }
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* // ... respond to non-AJAX request ...
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* ~~~
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*
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* To validate multiple models, simply pass each model as a parameter to this method, like
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* the following:
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*
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* ~~~
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* ActiveForm::validate($model1, $model2, ...);
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* ~~~
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*
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* @param Model $model the model to be validated
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* @param mixed $attributes list of attributes that should be validated.
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* If this parameter is empty, it means any attribute listed in the applicable
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* validation rules should be validated.
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*
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* When this method is used to validate multiple models, this parameter will be interpreted
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* as a model.
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*
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* @return array the error message array indexed by the attribute IDs.
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*/
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public static function validate($model, $attributes = null)
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{
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$result = [];
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if ($attributes instanceof Model) {
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// validating multiple models
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$models = func_get_args();
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$attributes = null;
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} else {
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$models = [$model];
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}
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/** @var Model $model */
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foreach ($models as $model) {
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$model->validate($attributes);
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foreach ($model->getErrors() as $attribute => $errors) {
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$result[Html::getInputId($model, $attribute)] = $errors;
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}
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}
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return $result;
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}
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/**
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* Validates an array of model instances and returns an error message array indexed by the attribute IDs.
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* This is a helper method that simplifies the way of writing AJAX validation code for tabular input.
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*
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* For example, you may use the following code in a controller action to respond
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* to an AJAX validation request:
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*
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* ~~~
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* // ... load $models ...
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* if (Yii::$app->request->isAjax) {
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* Yii::$app->response->format = Response::FORMAT_JSON;
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* return ActiveForm::validateMultiple($models);
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* }
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* // ... respond to non-AJAX request ...
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* ~~~
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*
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* @param array $models an array of models to be validated.
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* @param mixed $attributes list of attributes that should be validated.
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* If this parameter is empty, it means any attribute listed in the applicable
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* validation rules should be validated.
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* @return array the error message array indexed by the attribute IDs.
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*/
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public static function validateMultiple($models, $attributes = null)
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{
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$result = [];
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/** @var Model $model */
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foreach ($models as $i => $model) {
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$model->validate($attributes);
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foreach ($model->getErrors() as $attribute => $errors) {
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$result[Html::getInputId($model, "[$i]" . $attribute)] = $errors;
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}
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}
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return $result;
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}
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}
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