I get an error Unknown Property – yii\base\UnknownPropertyException
on my controller
Check what class looks for findModel and go inside that class and check if there is attribute subcategory. Also you could connect to db and see if table really have that column.
No column of that name found. subcategory is the table itself.
You have to understand that using screen shots is not a good way for showing code. It requires additional effort to read, and eventually reduces the chance for you to get help.
This is a general advice from a moderator. You can follow it or ignore it. It’s up to you.
Contoller
public function actionUpdate($id) {
$model = $this->findModel($id);
$modelsSubcategory = $model->subcategories;
if ($model->load(Yii::$app->request->post()) && $model->save()) {
$oldIDs = ArrayHelper::map($modelsSubcategory, 'id', 'id');
//var_dump($oldIDs);
$modelsSubcategory = Model::createMultiple(Subcategory::classname(), $modelsSubcategory);
Model::loadMultiple($modelsSubcategory, Yii::$app->request->post());
$deletedIDs = array_diff($oldIDs, array_filter(ArrayHelper::map($modelsSubcategory, 'id', 'id')));
// validate all models
$valid = $model->validate();
$valid = Model::validateMultiple($modelsSubcategory) && $valid;
if ($valid) {
$transaction = \Yii::$app->db->beginTransaction();
try {
if ($flag = $model->save(false)) {
if (! empty($deletedIDs)) {
Subcategory::deleteAll(['id' => $deletedIDs]);
}
foreach ($modelsSubcategory as $modelSubcategory) {
$modelSubcategory->category_id = $model->id;
if (! ($flag = $modelSubcategory->save(false))) {
$transaction->rollBack();
break;
}
}
}
if ($flag) {
$transaction->commit();
return $this->redirect(['view', 'id' => $model->id]);
}
} catch (Exception $e) {
$transaction->rollBack();
}
}
}
else {
return $this->render('update', [
'model' => $model,
'modelsSubcategory' => (empty($modelsSubcategory)) ? [new Subcategory] : $modelsSubcategory
]);
}
}Model
namespace backend\models;
use Yii;
use yii\helpers\ArrayHelper;
class Model extends \yii\base\Model
{
/**
* Creates and populates a set of models.
*
* @param string $modelClass
* @param array $multipleModels
* @return array
*/
public static function createMultiple($modelClass, $multipleModels = [])
{
$model = new $modelClass;
$formName = $model->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;
}
}_form.php
<div class="category-form">
<?php $form = ActiveForm::begin(['id' => 'dynamic-form']); ?>
<?= $form->field($model, 'name')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'status')->dropDownList([ '1' => 'Active', '0' => 'Inactive'], ['prompt' => 'Select']) ?>
<?= $form->field($model, 'created_at')->hiddenInput(['value' => date('Y-m-d')])->label(false) ?>
<?= $form->field($model, 'created_by')->textInput(['maxlength' => true]) ?>
<div class="row">
<div class="panel panel-default">
<div class="panel-heading"><h4><i class="glyphicon glyphicon-envelope"></i> Sub-Category</h4></div>
<div class="panel-body">
<?php DynamicFormWidget::begin([
'widgetContainer' => 'dynamicform_wrapper', // required: only alphanumeric characters plus "_" [A-Za-z0-9_]
'widgetBody' => '.container-items', // required: css class selector
'widgetItem' => '.item', // required: css class
'limit' => 4, // the maximum times, an element can be cloned (default 999)
'min' => 1, // 0 or 1 (default 1)
'insertButton' => '.add-item', // css class
'deleteButton' => '.remove-item', // css class
'model' => $modelsSubcategory[0],
'formId' => 'dynamic-form',
'formFields' => [
'name',
],
]); ?>
<div class="container-items"><!-- widgetContainer -->
<?php foreach ($modelsSubcategory as $i => $modelsSubcategory): ?>
<div class="item panel panel-default"><!-- widgetBody -->
<div class="panel-heading">
<h3 class="panel-title pull-left">Sub-Category</h3>
<div class="pull-right">
<button type="button" class="add-item btn btn-success btn-xs"><i class="glyphicon glyphicon-plus"></i></button>
<button type="button" class="remove-item btn btn-danger btn-xs"><i class="glyphicon glyphicon-minus"></i></button>
</div>
<div class="clearfix"></div>
</div>
<div class="panel-body">
<?php
// necessary for update action.
if (! $modelsSubcategory->isNewRecord) {
echo Html::activeHiddenInput($modelsSubcategory, "[{$i}]id");
}
?>
<div class="row">
<div class="col-sm-6">
<?= $form->field($modelsSubcategory, "[{$i}]name")->textInput(['maxlength' => true]) ?>
</div>
</div><!-- .row -->
</div>
</div>
<?php endforeach; ?>
</div>
<?php DynamicFormWidget::end(); ?>
</div>
</div>
</div>
<div class="form-group">
<?= Html::submitButton('Save', ['class' => 'btn btn-success']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>update.php
use yii\helpers\Html;
/* @var $this yii\web\View */
/* @var $model backend\models\Category */
$this->title = 'Update Category: ' . $model->name;
$this->params['breadcrumbs'][] = ['label' => 'Categories', 'url' => ['index']];
$this->params['breadcrumbs'][] = ['label' => $model->name, 'url' => ['view', 'id' => $model->id]];
$this->params['breadcrumbs'][] = 'Update';
?>
<div class="category-update">
<h1><?= Html::encode($this->title) ?></h1>
<?= $this->render('_form', [
'model' => $model,
'modelsSubcategory' => $modelsSubcategory,
]) ?>
</div>I can create the dynamic form but i cannot update.
Ok so you should have created relation in model category. Something like that:
...
class User {
...
public function getSubcategories()
{
return $this->hasMany(Subcategory::className(), ['category_id' => 'id']);
}
}
That’s another problem.
Could you show us the stack trace?
