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<?php
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/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
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namespace yii\widgets;
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use Yii;
use yii\base\InvalidConfigException;
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use yii\base\Widget;
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use yii\base\Model;
use yii\helpers\Html;
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use yii\helpers\Json;
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/**
* ActiveForm ...
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class ActiveForm extends Widget
{
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/**
* @param array|string $action the form action URL. This parameter will be processed by [[\yii\helpers\Html::url()]].
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*/
public $action = '';
/**
* @var string the form submission method. This should be either 'post' or 'get'.
* Defaults to 'post'.
*/
public $method = 'post';
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/**
* @var Model the model associated with this form. This property must be set if you call [[field()]]
* to create input fields. If a form is associated with multiple models, this property is not needed
* and you should use [[mfield()]] to create input fields.
*/
public $model;
/**
* @var array the HTML attributes (name-value pairs) for the form tag.
* The values will be HTML-encoded using [[Html::encode()]].
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* If a value is null, the corresponding attribute will not be rendered.
*/
public $options = array();
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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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*/
public $fieldConfig;
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/**
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* @var string the default CSS class for the error summary container.
* @see errorSummary()
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*/
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public $errorSummaryCssClass = 'error-summary';
/**
* @var string the CSS class that is added to a field container when the associated attribute is required.
*/
public $requiredCssClass = 'required';
/**
* @var string the CSS class that is added to a field container when the associated attribute has validation error.
*/
public $errorCssClass = 'error';
/**
* @var string the CSS class that is added to a field container when the associated attribute is successfully validated.
*/
public $successCssClass = 'success';
/**
* @var string the CSS class that is added to a field container when the associated attribute is being validated.
*/
public $validatingCssClass = 'validating';
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/**
* @var boolean whether to enable client-side data validation.
* If [[ActiveField::enableClientValidation]] is set, its value will take precedence for that input field.
*/
public $enableClientValidation = true;
/**
* @var boolean whether to enable AJAX-based data validation.
* If [[ActiveField::enableAjaxValidation]] is set, its value will take precedence for that input field.
*/
public $enableAjaxValidation = false;
/**
* @var array|string the URL for performing AJAX-based validation. This property will be processed by
* [[Html::url()]]. Please refer to [[Html::url()]] for more details on how to configure this property.
* If this property is not set, it will take the value of the form's action attribute.
*/
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public $validationUrl;
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/**
* @var boolean whether to perform validation when the form is submitted.
*/
public $validateOnSubmit = true;
/**
* @var boolean whether to perform validation when an input field loses focus and its value is found changed.
* If [[ActiveField::validateOnChange]] is set, its value will take precedence for that input field.
*/
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public $validateOnChange = true;
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/**
* @var boolean whether to perform validation while the user is typing in an input field.
* If [[ActiveField::validateOnType]] is set, its value will take precedence for that input field.
* @see validationDelay
*/
public $validateOnType = false;
/**
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* @var integer number of milliseconds that the validation should be delayed when an input field
* 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.
*/
public $validationDelay = 200;
/**
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* @var string the name of the GET parameter indicating the validation request is an AJAX request.
*/
public $ajaxVar = 'ajax';
/**
* @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.
* @internal
*/
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public $attributes = array();
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/**
* Initializes the widget.
* This renders the form open tag.
*/
public function init()
{
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if (!isset($this->options['id'])) {
$this->options['id'] = $this->getId();
}
if (!isset($this->fieldConfig['class'])) {
$this->fieldConfig['class'] = 'yii\widgets\ActiveField';
}
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echo Html::beginForm($this->action, $this->method, $this->options);
}
/**
* Runs the widget.
* This registers the necessary javascript code and renders the form close tag.
*/
public function run()
{
if (!empty($this->attributes)) {
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$id = $this->options['id'];
$options = Json::encode($this->getClientOptions());
$attributes = Json::encode($this->attributes);
$this->getView()->registerAssetBundle('yii/form');
$this->getView()->registerJs("jQuery('#$id').yiiActiveForm($attributes, $options);");
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}
echo Html::endForm();
}
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/**
* Returns the options for the form JS widget.
* @return array the options
*/
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protected function getClientOptions()
{
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$options = array(
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'errorSummary' => '.' . $this->errorSummaryCssClass,
'validateOnSubmit' => $this->validateOnSubmit,
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'errorCssClass' => $this->errorCssClass,
'successCssClass' => $this->successCssClass,
'validatingCssClass' => $this->validatingCssClass,
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'ajaxVar' => $this->ajaxVar,
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);
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if ($this->validationUrl !== null) {
$options['validationUrl'] = Html::url($this->validationUrl);
}
return $options;
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}
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/**
* Generates a summary of the validation errors.
* If there is no validation error, an empty error summary markup will still be generated, but it will be hidden.
* @param Model|Model[] $models the model(s) associated with this form
* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
*
* - header: string, the header HTML for the error summary. If not set, a default prompt string will be used.
* - footer: string, the footer HTML for the error summary.
*
* The rest of the options will be rendered as the attributes of the container tag. The values will
* be HTML-encoded using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
* @return string the generated error summary
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*/
public function errorSummary($models, $options = array())
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{
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if (!is_array($models)) {
$models = array($models);
}
$lines = array();
foreach ($models as $model) {
/** @var $model Model */
foreach ($model->getFirstErrors() as $error) {
$lines[] = Html::encode($error);
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}
}
$header = isset($options['header']) ? $options['header'] : '<p>' . Yii::t('yii', 'Please fix the following errors:') . '</p>';
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$footer = isset($options['footer']) ? $options['footer'] : '';
unset($options['header'], $options['footer']);
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if (!isset($options['class'])) {
$options['class'] = $this->errorSummaryCssClass;
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} else {
$options['class'] .= ' ' . $this->errorSummaryCssClass;
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}
if (!empty($lines)) {
$content = "<ul><li>" . implode("</li>\n<li>", $lines) . "</li><ul>";
return Html::tag('div', $header . $content . $footer, $options);
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} else {
$content = "<ul></ul>";
$options['style'] = isset($options['style']) ? rtrim($options['style'], ';') . '; display:none' : 'display:none';
return Html::tag('div', $header . $content . $footer, $options);
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}
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}
/**
* Generates a form field using [[model]] and the specified attribute.
*
* A form field is associated with a model and an attribute. It contains a label, an input and an error message
* and uses them to interact with end users to collect their input for the attribute.
*
* This method is mainly used for a form with a single model.
*
* @param string $attribute the attribute name or expression. See [[Html::getAttributeName()]] for the format
* about attribute expression.
* @param array $options the additional configurations for the field object
* @return ActiveField the created ActiveField object
* @throws InvalidConfigException if [[model]] is not specified
* @see fieldConfig
* @see mfield
*/
public function field($attribute, $options = array())
{
if (!$this->model instanceof Model) {
throw new InvalidConfigException('The "model" property must be set.');
}
return Yii::createObject(array_merge($this->fieldConfig, $options, array(
'model' => $this->model,
'attribute' => $attribute,
'form' => $this,
)));
}
/**
* Generates a form field using the specified model and attribute.
*
* This method differs from [[field()]] in that the model is passed as a parameter rather than obtained
* from [[model]].
*
* This method is mainly used for a form with multiple models.
*
* @param Model $model the data model
* @param string $attribute the attribute name or expression. See [[Html::getAttributeName()]] for the format
* about attribute expression.
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* @param array $options the additional configurations for the field object
* @return ActiveField the created ActiveField object
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* @see fieldConfig
* @see field
*/
public function mfield($model, $attribute, $options = array())
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{
return Yii::createObject(array_merge($this->fieldConfig, $options, array(
'model' => $model,
'attribute' => $attribute,
'form' => $this,
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)));
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}
}