, (*1)
It is widget to yii2 framework to clone form elements in a nested manner, maintaining accessibility.
, (*2)
Installation
The preferred way to install this extension is through composer., (*3)
Either run, (*4)
php composer.phar require --prefer-dist fosker/yii2-dynamicform "dev-master"
or add, (*5)
"fosker/yii2-dynamicform": "dev-master"
to the require section of your composer.json file., (*6)
Demos
Usage
Hypothetical Scenario
, (*7)
The View
Javascript Events
$(".dynamicform_wrapper").on("beforeInsert", function(e, item) {
console.log("beforeInsert");
});
$(".dynamicform_wrapper").on("afterInsert", function(e, item) {
console.log("afterInsert");
});
$(".dynamicform_wrapper").on("beforeDelete", function(e, item) {
if (! confirm("Are you sure you want to delete this item?")) {
return false;
}
return true;
});
$(".dynamicform_wrapper").on("afterDelete", function(e) {
console.log("Deleted item!");
});
$(".dynamicform_wrapper").on("limitReached", function(e, item) {
alert("Limit reached");
});
The Controller (sample code)
load(Yii::$app->request->post())) {
$modelsAddress = Model::createMultiple(Address::classname());
Model::loadMultiple($modelsAddress, Yii::$app->request->post());
// ajax validation
if (Yii::$app->request->isAjax) {
Yii::$app->response->format = Response::FORMAT_JSON;
return ArrayHelper::merge(
ActiveForm::validateMultiple($modelsAddress),
ActiveForm::validate($modelCustomer)
);
}
// validate all models
$valid = $modelCustomer->validate();
$valid = Model::validateMultiple($modelsAddress) && $valid;
if ($valid) {
$transaction = \Yii::$app->db->beginTransaction();
try {
if ($flag = $modelCustomer->save(false)) {
foreach ($modelsAddress as $modelAddress) {
$modelAddress->customer_id = $modelCustomer->id;
if (! ($flag = $modelAddress->save(false))) {
$transaction->rollBack();
break;
}
}
}
if ($flag) {
$transaction->commit();
return $this->redirect(['view', 'id' => $modelCustomer->id]);
}
} catch (Exception $e) {
$transaction->rollBack();
}
}
}
return $this->render('create', [
'modelCustomer' => $modelCustomer,
'modelsAddress' => (empty($modelsAddress)) ? [new Address] : $modelsAddress
]);
}
/**
* Updates an existing Customer model.
* If update is successful, the browser will be redirected to the 'view' page.
* @param integer $id
* @return mixed
*/
public function actionUpdate($id)
{
$modelCustomer = $this->findModel($id);
$modelsAddress = $modelCustomer->addresses;
if ($modelCustomer->load(Yii::$app->request->post())) {
$oldIDs = ArrayHelper::map($modelsAddress, 'id', 'id');
$modelsAddress = Model::createMultiple(Address::classname(), $modelsAddress);
Model::loadMultiple($modelsAddress, Yii::$app->request->post());
$deletedIDs = array_diff($oldIDs, array_filter(ArrayHelper::map($modelsAddress, 'id', 'id')));
// ajax validation
if (Yii::$app->request->isAjax) {
Yii::$app->response->format = Response::FORMAT_JSON;
return ArrayHelper::merge(
ActiveForm::validateMultiple($modelsAddress),
ActiveForm::validate($modelCustomer)
);
}
// validate all models
$valid = $modelCustomer->validate();
$valid = Model::validateMultiple($modelsAddress) && $valid;
if ($valid) {
$transaction = \Yii::$app->db->beginTransaction();
try {
if ($flag = $modelCustomer->save(false)) {
if (! empty($deletedIDs)) {
Address::deleteAll(['id' => $deletedIDs]);
}
foreach ($modelsAddress as $modelAddress) {
$modelAddress->customer_id = $modelCustomer->id;
if (! ($flag = $modelAddress->save(false))) {
$transaction->rollBack();
break;
}
}
}
if ($flag) {
$transaction->commit();
return $this->redirect(['view', 'id' => $modelCustomer->id]);
}
} catch (Exception $e) {
$transaction->rollBack();
}
}
}
return $this->render('update', [
'modelCustomer' => $modelCustomer,
'modelsAddress' => (empty($modelsAddress)) ? [new Address] : $modelsAddress
]);
}
...
}
```
###Model Class
```php
formName();
$post = Yii::$app->request->post($formName);
$models = [];
if (! empty($multipleModels)) {
$keys = array_keys(ArrayHelper::map($multipleModels, 'id', 'id'));
$multipleModels = array_combine($keys, $multipleModels);
}
if ($post && is_array($post)) {
foreach ($post as $i => $item) {
if (isset($item['id']) && !empty($item['id']) && isset($multipleModels[$item['id']])) {
$models[] = $multipleModels[$item['id']];
} else {
$models[] = new $modelClass;
}
}
}
unset($model, $formName, $post);
return $models;
}
}
```
###To zero or more elements (use the following code in your view file)
```php
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Bogdan