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<?php
/**
* @package yii2-grid
* @author Kartik Visweswaran <kartikv2@gmail.com>
* @copyright Copyright © Kartik Visweswaran, Krajee.com, 2014 - 2019
* @version 3.3.2
*/
namespace kartik\grid;
use Yii;
use Closure;
use yii\db\ActiveRecord;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\rest\Action;
use yii\web\Response;
use yii\web\BadRequestHttpException;
/**
* EditableAction is useful for processing the update of [[EditableColumn]] attributes via form submission. A typical
* usage of this action in your controller could look like below:
*
* ```php
*
* // you can set the EditableColumn::editableOptions['formOptions']['action'] to point to the action below
* // i.e. `/site/editbook` for the example below
*
* use kartik\grid\EditableColumnAction;
* use yii\web\Controller;
* use yii\helpers\ArrayHelper;
* use app\models\Book;
*
* class SiteController extends Controller
* {
* public function actions()
* {
* return array_replace_recursive(parent::actions(), [
* 'editbook' => [ // identifier for your editable column action
* 'class' => EditableColumnAction::className(), // action class name
* 'modelClass' => Book::className(), // the model for the record being edited
* 'scenario' => Model::SCENARIO_DEFAULT, // model scenario assigned before validation & update
* 'outputValue' => function ($model, $attribute, $key, $index) {
* return (int) $model->$attribute / 100; // return a calculated output value if desired
* },
* 'outputMessage' => function($model, $attribute, $key, $index) {
* return ''; // any custom error to return after model save
* },
* 'showModelErrors' => true, // show model validation errors after save
* 'errorOptions' => ['header' => ''] // error summary HTML options
* // 'postOnly' => true,
* // 'ajaxOnly' => true,
* // 'findModel' => function($id, $action) {},
* // 'checkAccess' => function($action, $model) {}
* ]
* ]);
* }
* }
* ```
*
* @author Kartik Visweswaran <kartikv2@gmail.com>
* @since 1.0
*/
class EditableColumnAction extends Action
{
/**
* @var string the scenario to be assigned to the model before it is validated and updated.
*/
public $scenario = ActiveRecord::SCENARIO_DEFAULT;
/**
* @var string|Closure the output value from the editable. If set as a string, will be returned as is. If set as a
* [[Closure]], the signature of the callback would be `function ($model, $attribute, $key, $index) { }`, where:
* - `$model`: _\yii\base\Model_, is the model data retrieved via POST.
* - `$attribute`: _string_, the attribute name for which the editable plugin is initialized.
* - `$key`: _mixed_, is the model primary key value.
* - `$index`: _integer_, is the zero-based index of the data model among the model array returned by [[dataProvider]].
*/
public $outputValue = '';
/**
* @var string|Closure the output error message from the editable. If set as a string, will be returned as is. If
* set as a [[Closure]], the signature of the callback would be `function ($model, $attribute, $key, $index) { }`, where:
* - `$model`: _\yii\base\Model_, is the model data retrieved via POST.
* - `$attribute`: _string_, the attribute name for which the editable plugin is initialized.
* - `$key`: _mixed_, is the model primary key value.
* - `$index`: _integer_, is the zero-based index of the data model among the model array returned by [[dataProvider]].
*/
public $outputMessage = '';
/**
* @var boolean whether to show model errors if `outputMessage` is empty or not set.
*/
public $showModelErrors = true;
/**
* @var array the special error messages configuration for displaying editable submission errors other than model
* validation errors. The following keys can be set to configure the relevant error messages:
*
* - `invalidEditable`: _string_, the message to be displayed when this action has not been used with the
* [[EditableColumn]] or no value for `$_POST[hasEditable]` is detected over post request. If not set, this will
* default to the i18n translated string: `'Invalid or bad editable data'`.
* - `invalidModel`: _string_, the message to be displayed when no valid model has been found for the editable
* primary key submitted over post request. If not set will default to the i18n translated string:
* `'No valid editable model found'`.
* - `editableException`: _string_, the message to be displayed when an invalid editable index or model form name is
* available over post request. If not set will default to the i18n translated string:
* `'Invalid editable index or model form name'`.
* - `saveException`: _string_, the message to be displayed for any unknown server or database exception when saving
* the model data and when no model errors are found. If not set will default to the i18n translated string:
* `'Failed to update editable data due to an unknown server error'`.
*/
public $errorMessages = [];
/**
* @var array the options for error summary as supported by `options` param in `yii\helpers\Html::errorSummary()`
*/
public $errorOptions = ['header' => ''];
/**
* @var boolean whether to allow access to this action for POST requests only. Defaults to `true`.
*/
public $postOnly = true;
/**
* @var boolean whether to allow access to this action for AJAX requests only. Defaults to `true`.
*/
public $ajaxOnly = true;
/**
* @var string allows overriding the form name which is used to access posted data
*/
public $formName;
/**
* @inheritdoc
*/
public function run()
{
$m = Yii::$app->getModule(Module::MODULE);
$out = $this->validateEditable();
unset($m);
return Yii::createObject(['class' => Response::className(), 'format' => Response::FORMAT_JSON, 'data' => $out]);
}
/**
* Validates the EditableColumn post request submission
*
* @return array the output for the Editable action response
* @throws BadRequestHttpException
*/
protected function validateEditable()
{
$request = Yii::$app->request;
if ($this->postOnly && !$request->isPost || $this->ajaxOnly && !$request->isAjax) {
throw new BadRequestHttpException('This operation is not allowed!');
}
$this->initErrorMessages();
$post = $request->post();
if (!isset($post['hasEditable'])) {
return ['output' => '', 'message' => $this->errorMessages['invalidEditable']];
}
/**
* @var ActiveRecord $model
*/
$key = ArrayHelper::getValue($post, 'editableKey');
$model = $this->findModel($key);
if (!$model) {
return ['output' => '', 'message' => $this->errorMessages['invalidModel']];
}
if ($this->checkAccess && is_callable($this->checkAccess)) {
call_user_func($this->checkAccess, $this->id, $model);
}
$model->scenario = $this->scenario;
$index = ArrayHelper::getValue($post, 'editableIndex');
$attribute = ArrayHelper::getValue($post, 'editableAttribute');
$formName = isset($this->formName) ? $this->formName: $model->formName();
if (!$formName || is_null($index) || !isset($post[$formName][$index])) {
return ['output' => '', 'message' => $this->errorMessages['editableException']];
}
$postData = [$model->formName() => $post[$formName][$index]];
if ($model->load($postData)) {
$params = [$model, $attribute, $key, $index];
$message = static::parseValue($this->outputMessage, $params);
if (!$model->save()) {
if (!$model->hasErrors()) {
return ['output' => '', 'message' => $this->errorMessages['saveException']];
}
if (empty($message) && $this->showModelErrors) {
$message = Html::errorSummary($model, $this->errorOptions);
}
}
$value = static::parseValue($this->outputValue, $params);
return ['output' => $value, 'message' => $message];
}
return ['output' => '', 'message' => ''];
}
/**
* Initializes the error messages if not set.
*/
protected function initErrorMessages()
{
$this->errorMessages += [
'invalidEditable' => Yii::t('kvgrid', 'Invalid or bad editable data'),
'invalidModel' => Yii::t('kvgrid', 'No valid editable model found'),
'editableException' => Yii::t('kvgrid', 'Invalid editable index or model form name'),
'saveException' => Yii::t('kvgrid', 'Failed to update editable data due to an unknown server error'),
];
}
/**
* Parses a variable if callable and computes and returns value accordingly
*
* @param mixed $var the variable to be parsed
* @param array $params the function parameters if $var is callable
*
* @return mixed
*/
protected static function parseValue($var, $params = [])
{
return is_callable($var) ? call_user_func_array($var, $params) : $var;
}
}