Dynamic forms operations with data on generated forms? yii2 - yii2

Question

basically. I have a problem with 2 things:
I'm using dynamic forms, the user can add as many as he needs to input all of the invoices at hand. I have a field (invoice_loadamount), i want to sum all of the invoice_loadamount fields. So if the user generates 3 forms i want it to sum dynamic form one(invoice_loadamount field 1) + dynamic form two.(invoice_loadamount field 2) + dynamic form three(invoice_loadamount field 3). How can i make this? Auto sum this field from every form he generated?
My second problem is that i want to then retrieve data from a table (vehicles, column vehicle_capacity) and then compare in such a way that it will validate if the sum is greater than the vehicle_maxcap and then give an error if so.
My form:
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
use yii\helpers\ArrayHelper;
use wbraganca\dynamicform\DynamicFormWidget;
use app\models\Drivers;
use app\models\Vehicles;
use app\models\Invoices;
use dosamigos\datepicker\DatePicker;
use kartik\select2\Select2;
use yii\bootstrap\Modal;
use yii\helpers\Url;
/* #var $this yii\web\View */
/* #var $model app\models\Archive */
/* #var $form yii\widgets\ActiveForm */
?>
<div class="archive-form">
<?php $form = ActiveForm::begin(['id' => 'dynamic-form']); ?>
<?= $form->field($model, 'driver_identitynum')->widget(Select2::classname(), [
'data' => ArrayHelper::map(Drivers::find()->all(),'driver_identitynum', 'fullname'),
'language' => 'en',
'options' => ['placeholder' => 'Ingrese el numero de cedula...'],
'pluginOptions' => [
'allowClear' => true],
]); ?>
<div align="right"><?= Html::a('Add driver', ['/drivers/create'],
['target'=>'_blank']); ?>
</div>
<?= $form->field($model, 'vehicle_lp')->widget(Select2::classname(), [
'data' => ArrayHelper::map(Vehicles::find()->all(),'vehicle_lp', 'fulltruck'),
'language' => 'en',
'options' => ['placeholder' => 'Ingrese la placa del vehiculo...'],
'pluginOptions' => [
'allowClear' => true
],
]); ?>
<div align="right"><?= Html::a('Add vehicle', ['/vehicles/create'],
['target'=>'_blank']); ?>
</div>
<div class="row"> <div class="panel panel-default">
<div class="panel-heading"><h4><i class="glyphicon glyphicon-envelope"></i>Facturas</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' => $modelsInvoices[0],
'formId' => 'dynamic-form',
'formFields' => [
'invoice_number',
'invoice_loadamount',
'invoice_date',
],
]); ?>
<div class="container-items"><!-- widgetContainer -->
<?php foreach ($modelsInvoices as $i => $modelInvoices): ?>
<div class="item panel panel-default"><!-- widgetBody -->
<div class="panel-heading">
<h3 class="panel-title pull-left">Facturas</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 (! $modelInvoices->isNewRecord) {
echo Html::activeHiddenInput($modelInvoices, "[{$i}]id");
}
?>
<div class="row">
<div class="col-sm-6">
<?= $form->field($modelInvoices, "[{$i}]invoice_number")->textInput(['maxlength' => true]) ?>
</div>
<div class="col-sm-6">
<?= $form->field($modelInvoices, "[{$i}]invoice_loadamount")->textInput(['maxlength' => true]) ?>
</div>
<div class="col-sm-6">
<?= $form->field($modelInvoices, "[{$i}]invoice_date", ['enableAjaxValidation' => true])->widget(DatePicker::className(), [
// inline too, not bad
'inline' => false,
// modify template for custom rendering
//'template' => '<div class="well well-sm" style="background-color: #fff; width:250px">{input}</div>',
'options' => ['class' => 'form-control picker'],
'clientOptions' => [
'autoclose' => true,
'format' => 'dd-mm-yyyy'
]
]);?>
</div>
</div><!-- .row -->
<div class="row">
</div>
</div>
<?php endforeach; ?>
</div>
<?php DynamicFormWidget::end(); ?>
</div>
</div>
</div>
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
My archive model:
<?php
namespace app\models;
use Yii;
/**
* This is the model class for table "archive".
*
* #property integer $id
* #property string $driver_identitynum
* #property string $vehicle_lp
* #property string $DateCreated
*
* #property Invoices[] $invoices
*/
class Archive extends \yii\db\ActiveRecord
{
/**
* #inheritdoc
*/
public static function tableName()
{
return 'archive';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['driver_identitynum', 'vehicle_lp'], 'required'],
[['DateCreated'], 'safe'],
[['driver_identitynum', 'vehicle_lp'], 'string', 'max' => 100]
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'driver_identitynum' => 'Cedula del conductor:',
'vehicle_lp' => 'Placa del vehiculo:',
'DateCreated' => 'Date Created',
];
}
/**
* #return \yii\db\ActiveQuery
*/
public function getInvoices()
{
return $this->hasMany(Invoices::className(), ['archive_id' => 'id']);
}
}
My vehicle model:
<?php
namespace app\models;
use Yii;
/**
* This is the model class for table "vehicles".
*
* #property integer $vehicle_id
* #property string $vehicle_model
* #property string $vehicle_lp
* #property string $vehicle_maxcap
*/
class Vehicles extends \yii\db\ActiveRecord
{
/**
* #inheritdoc
*/
public static function tableName()
{
return 'vehicles';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['vehicle_model', 'vehicle_lp', 'vehicle_maxcap'], 'required'],
[['vehicle_model', 'vehicle_lp', 'vehicle_maxcap'], 'string', 'max' => 100]
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'vehicle_id' => 'Vehicle ID',
'vehicle_model' => 'Vehicle Model',
'vehicle_lp' => 'Vehicle Lp',
'vehicle_maxcap' => 'Vehicle Maxcap',
];
}
public function getfullTruck()
{
return $this->vehicle_lp.' - '.$this->vehicle_model.' - '.$this->vehicle_maxcap.'kgs';
}
}
My invoice model:
<?php
namespace app\models;
use Yii;
use yii\db\Query;
/**
* This is the model class for table "invoices".
*
* #property integer $id
* #property string $invoice_number
* #property string $invoice_loadamount
* #property string $invoice_date
* #property integer $archive_id
* #property string $DateProcessed
*
* #property Archive $archive
*/
class Invoices extends \yii\db\ActiveRecord
{
/**
* #inheritdoc
*/
public static function tableName()
{
return 'invoices';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['invoice_number', 'invoice_loadamount', 'invoice_date'], 'required'],
[['archive_id'], 'integer'],
[['DateProcessed'], 'safe'],
//[['invoice_date'],'date','format'=>'dd-mm-yyyy','min'=>date('d-m-Y',time()-60*60*24*5)],
//Checks if invoice date put in is older than 5 days
[['invoice_date'], 'date', 'format'=>"dd-MM-yyyy", 'min'=>date("d-m-Y",strtotime('-5 days'))],
[['invoice_number', 'invoice_loadamount', 'invoice_date'], 'string', 'max' => 100]];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'invoice_number' => 'Numero de factura:',
'invoice_loadamount' => 'Carga de la factura(kgs):',
'invoice_date' => 'Fecha de emision de la factura:',
'archive_id' => 'Archive ID',
'DateProcessed' => 'Fecha de registro:'];
}
/**
* #return \yii\db\ActiveQuery
*/
public function getArchive()
{
return $this->hasOne(Archive::className(), ['id' => 'archive_id']);
}
public function compareweight($attribute,$params)
{
$inputlp=($this->invoice_loadamount);
$row = (new \yii\db\Query())
->select('vehicle_lp')
->from('vehicles')
->where("vehicle_lp=$vehiclelp")
->all();
}
}
My controller:
<?php
namespace app\controllers;
use Yii;
use app\models\Vehicles;
use app\models\VehiclesSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
/**
* VehiclesController implements the CRUD actions for Vehicles model.
*/
class VehiclesController extends Controller
{
public function behaviors()
{
return [
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'delete' => ['post'],
],
],
];
}
/**
* Lists all Vehicles models.
* #return mixed
*/
public function actionIndex()
{
$searchModel = new VehiclesSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
return $this->render('index', [
'searchModel' => $searchModel,
'dataProvider' => $dataProvider,
]);
}
/**
* Displays a single Vehicles model.
* #param integer $id
* #return mixed
*/
public function actionView($id)
{
return $this->render('view', [
'model' => $this->findModel($id),
]);
}
/**
* Creates a new Vehicles model.
* If creation is successful, the browser will be redirected to the 'view' page.
* #return mixed
*/
public function actionCreate()
{
$model = new Vehicles();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->vehicle_id]);
} else {
return $this->render('create', [
'model' => $model,
]);
}
}
/**
* Updates an existing Vehicles model.
* If update is successful, the browser will be redirected to the 'view' page.
* #param integer $id
* #return mixed
*/
public function actionUpdate($id)
{
$model = $this->findModel($id);
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->vehicle_id]);
} else {
return $this->render('update', [
'model' => $model,
]);
}
}
/**
* Deletes an existing Vehicles model.
* If deletion is successful, the browser will be redirected to the 'index' page.
* #param integer $id
* #return mixed
*/
public function actionDelete($id)
{
$this->findModel($id)->delete();
return $this->redirect(['index']);
}
/**
* Finds the Vehicles model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* #param integer $id
* #return Vehicles the loaded model
* #throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($id)
{
if (($model = Vehicles::findOne($id)) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
}

Answer 1

As you can see from the HTML <input type="text" id="invoices-0-invoice_loadamount" class="form-control" name="Invoices[0][invoice_loadamount]" maxlength="100"> the loadamount input field is like this. So on the controller side either create function or update function will receive post data as $_POST['Invoices'] as an array like
array(
"0"=>array("invoice_number" => "132412", "invoice_loadamount" =>"34.00", "invoice_date" =>"2015-03-04"),
"1"=>array("invoice_number" => "352223", "invoice_loadamount" =>"233.00", "invoice_date" =>"2016-03-04"),
...
);
where 0, 1 represents each form added. In your case form one, form two etc.
What you need to do is just loop through the array you get from the array. Like this:
if (Yii::$app->request->isPost) {
$data = Yii::$app->request->post();
$invoices = $data['Invoices'];
$total = 0;
if(sizeof($invoices) > 0){
foreach($invoices as $one_invoice){
$one_loadamount = floatval($one_invoice['invoice_loadamount']);
$total += $one_loadamount;
}
}
//then you get the total amount as $total
}
for problem 2, you can then (assume that you already have the vehicle_id).
$vehicle = Vehicles::find()->where(['id'=>$vehicle_id])->one();
if($total > $vehicle->maxcap){
\Yii::$app->getSession()->setFlash('danger', 'Total is larger than max cap');
}
Since the second problem depends on a specific vehicles, you need to get its id first.