YII2 Useful Tips

Filter to force lowercase on all operations

Yii change case each word in a string and save model.

Yii2 change model case

['student_name', 'filter', 'filter'=>'strtolower'],

['student_name', 'filter', 'filter'=>'strtoupper'],

To convert to Lowercase or Uppercase 

Yii2 Transaction

Yii2 save related records in single save call in single transaction

Database Transaction in Yii

A transaction is used to run a group of operations in single process. When you we run multiple query in single process, It will be used. If you get any problem, It will not complete successfully and also rollback the executed query.

Transaction represents a DB transaction.

It is usually created by calling yii\db\Connection::beginTransaction().

The following code is a typical example of using transactions (note that some DBMS may not support transactions):

$transaction = $connection->beginTransaction();
try {
    $connection->createCommand($sql1)->execute();
    $connection->createCommand($sql2)->execute();
    //.... other SQL executions
    $transaction->commit();
} catch (\Exception $e) {
    $transaction->rollBack();
    throw $e;
} catch (\Throwable $e) {
    $transaction->rollBack();
    throw $e;
}

Example

$transaction = Yii::$app->db->beginTransaction(); 

 try { 

 $user = new User(); 

 $user->name = 'Name'; 

 $user->save(); 

 $ua = new UserAddress(); 

 $ua->city = 'City'; 

 $user->link('userAddress', $ua); // <-- it creates new record in UserAddress table with ua.user_id = user.id 

 $transaction->commit(); 

 } catch (Exception $e) { 

 $transaction->rollBack(); 

 }

Example

if ($model->load(Yii::$app->request->post()))
        {
         
           $transaction = \Yii::$app->db->beginTransaction();
           try {  
         
         
            $stockitem=Stockitem::find()->where(['id'=>$model->stockitem_id])->one();
            $stockitem->stock=$stockitem->stock-$model->stock;
         
            $stockitem->save();
         
            //Stock add to center
            $st=  Stockcenter::find()->where(['stockitem_id'=>$model->stockitem_id,'center_ccid'=>$model->center_ccid])->one();
            if($st)
            {
              $st->stock=$st->stock+$model->stock;
              $st->amount=$model->amount;
              $st->save();
            }
            else
            {
                $st= new Stockcenter();
                $st->stockitem_id=$model->stockitem_id;
                $st->center_ccid=$model->center_ccid;
                $st->stock=$model->stock;
                $st->amount=$model->amount;
                $st->save();              
            }
         
         
            $model->date=date('Y-m-d',strtotime($model->date));
            $model->save();
         
            $transaction->commit();

            } catch (Exception $e) {
                        $transaction->rollBack();
            }
         
            //Redirect...
         
         
        }


Example

$transaction = Yii::$app->db->beginTransaction(); 
              
                try {
                    
                                     
                    $command=Yii::$app->db->createCommand('UPDATE receipt SET type="STUDENTS" , students_admission_number = '. $std->admission_number . ', students_ccid = '. $std->ccid .' WHERE type = "ENQUIRY" AND students_admission_number = '. $model->enquiry_number . ' and students_ccid = ' . $model->ccid);
                    
                    if($std->save() && $model->save() && $command->execute())                    
                        $transaction->commit();
                    
                } catch (\Exception $e) {
                    $transaction->rollBack();
                    throw $e;
                } catch (\Throwable $e) {
                    $transaction->rollBack();
                    throw $e;
                }


http://www.yiiframework.com/doc-2.0/yii-db-transaction.html

Yii2 Database Operations

Using yii2 date range in active record

search between two dates in yii2

Correct way of date range check

$model = ModelName::find()->where(['between', 'date', "2015-06-21", "2015-06-27" ])
->all();

Using between 

$query= Stockdistributelog::find();    

$query->where(['center_ccid'=>$model->center_ccid]);

$query->andwhere(['between', 'date', date('Y-m-d',strtotime($model->date)),date('Y-m-d',strtotime($model->date_to)) ]);

$query->all();

$programs = Programs::find()->where(['>=', 'close_date', $today])->all();

Check official documentation for more details:

check exist ActiveRecord model in database

How to find record exist in database table ?

Yii2 you can add exists() to your query.

User::find()
    ->where( [ 'id' => 1 ] )
    ->exists(); 

 if(Mastersettings::find()->where(['id'=>1,'status'=>1])->exists())
                    {
                        
                        ....... Your code Here ......

                    } 

exists() return value of true or false.

ActiveRecord model in database

Yii2 Using distinct() in SQL Query

$total = YourMOdel::find()->select('company_name')->distinct()->count();

or

$teachers= Students::find()->select('employee_teachersid')->distinct()->where(['palce_or_subcenter'=>$model->palce_or_subcenter])->all();

or

$query = YourMOdel::find()->select(['company_name', 'client_code'])->distinct();

yii2 active record find column not equal

andWhere(['!=', 'field', 'value'])

Yii2 Database Some Example

Example 1

$teachers= Employee::find()->select(['staff_id','staff_name'])->where(['status'=>'Working','ccid'=>$center_id])
->orderBy('staff_name')
->all();
                                         
                   
                     foreach ($teachers as $value) {
                         echo $value['staff_name'];
                     }

Add date picker in dynamic form Yii2

Solutions for date picker does not work properly in dynamic forms


         Date picker widget add in dynamic form of yii2.

Problem using your yii2 extension, especialy the bootstrap datepicker is not show up.
You should add datepicker manually for dynamically genereted instances:

Add code in register javascript

$(".dynamicform_wrapper2").on("afterInsert afterDelete", function(e, item) {
        
        var VarItemsQuantity = $('.item2').length, VarCounter = 1;
        for(VarCounter; VarCounter < VarItemsQuantity; VarCounter++) {                     
            $('#dailyaccountbank-'+VarCounter+'-date').
                parent().datepicker({"autoclose":true,  "format":"d-m-yyyy", 'language':'ru',});                        
        };


View form like this



<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;
use wbraganca\dynamicform\DynamicFormWidget;
use yii\helpers\ArrayHelper;
use dosamigos\datepicker\DatePicker;


/* @var $this yii\web\View */
/* @var $model backend\modules\master\models\Students */

$this->title = 'Daily Account From';
//$this->params['breadcrumbs'][] = ['label' => 'Daily', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;

?>

<?php
           
    $script = <<< JS
            
        $(".dynamicform_wrapper").on("afterInsert afterDelete", function(e, item) {
        
        var VarItemsQuantity = $('.item').length, VarCounter = 1;
        for(VarCounter; VarCounter < VarItemsQuantity; VarCounter++) {                     
            $('#dailyaccountbank-'+VarCounter+'-date').
                parent().datepicker({"autoclose":true,  "format":"d-m-yyyy", 'language':'ru',});                        
        };
         
    });
            
            
JS;
$this->registerJs($script);
?>




<div class="students-create">


    <?php $form = ActiveForm::begin(['id' => 'dynamic-form']); ?>



    <!--Bank details-->
    
    <div class="lb-box-header lb-with-border">
        <h4 class="lb-box-title"><span class="glyphicon glyphicon-list-alt"></span> &nbsp;&nbsp;BANK REMITANCE DETAILS </h4>
    </div>

    <div class="row">        
        <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' => $modelsDailyaccountbank[0],
                'formId' => 'dynamic-form',
                'formFields' => [
                    'date',
                    'particulars', 
                    'individual',
                    'mode',
                    'amount',
                ],
            ]); ?>

            <table width = "100%">
                <tr bgcolor="#ddd"><td  width="15%"><b><center>DATE</center></b></td><td><b><center>PARTICULARS</center></b></td><td><b><center>INDIVIDUAL/COMPANY</center></b></td><td width="10%"><b><center>MODE</center></b></td><td width="10%"><b><center>AMOUNT</center></b></td><td width="6%"><b><center>Action</center></b></td></tr>
            </table>
            <div class="container-items"><!-- widgetContainer -->
            <?php foreach ($modelsDailyaccountbank as $i => $modelDailyaccountfee): ?>
                <div class="item"><!-- widgetBody -->
                                               
                      
                        <table width = "100%">
                            <tr>
                                <td width="15%">
                                    <?= $form->field($modelDailyaccountfee, "[{$i}]date") //->textInput(['maxlength' => true])->label(false) 
                                    ->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>',
                        'clientOptions' => [
                            'autoclose' => true,            
                            'format' => 'd-m-yyyy',
                            'todayHighlight' => true            
                            //'startDate' => $model->edate,
                        ]
                    ])->label(FALSE);
                                    
                                    
                                    ?>
   
                                    
                                </td>
                                <td>
                                    <?= $form->field($modelDailyaccountfee, "[{$i}]particulars")->textInput(['maxlength' => true])->label(false) ?>
                                </td>
                                <td>
                                    <?= $form->field($modelDailyaccountfee, "[{$i}]individual")->textInput(['maxlength' => true])->label(false) ?>
                                </td>
                                <td width="10%">
                                    <?= $form->field($modelDailyaccountfee, "[{$i}]mode")->textInput(['maxlength' => true])->label(false) ?>
                                </td>
                                <td width="10%">
                                    <?= $form->field($modelDailyaccountfee, "[{$i}]amount")->textInput(['maxlength' => true , 'style'=>'text-align:right'])->label(false) ?>
                                </td>
                                
                                <td width="6%">
                                    <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>
                                </td>
                            </tr>
                        </table>
                            
                </div> 
            <?php endforeach; ?>
            </div>
            
            
            
            <?php DynamicFormWidget::end(); ?>
        </div>
    
    </div>




<!--    <div class="form-group">
        <= Html::submitButton('Create', ['class' => 'btn btn-success']) ?>
    </div>-->
    
<br>

    
    
    <div class="form-group col-xs-12 col-sm-6 col-lg-4 no-padding">
<div class="col-xs-6">
        <?= Html::submitButton('<i class="fa fa-print"></i> Print', ['class' => 'btn btn-block btn-success','formtarget'=>"_blank"]) ?>            
</div>
<div class="col-xs-6">
<?= Html::resetButton('Reset', ['class' => 'btn btn-default btn-block']) ?>
</div>
     </div>
    
    
    

    <?php ActiveForm::end(); ?>


</div>

You should add datepicker manually for dynamically genereted instances:

function multipleDatepickers()
{
    $(".dynamicform_wrapper").on("afterInsert afterDelete", function(e, item) {
        var VarItemsQuantity = $('.item').length,
            VarCounter = 1;
        for(VarCounter; VarCounter < VarItemsQuantity; VarCounter++) {
            $('#WorkExperiencesModel-' + VarCounter + '-StartDate').
                parent().datepicker({"autoclose":true,  "format":"dd-M-yyyy", 'language':'ru',});
            $('#WorkExperiencesModel-' + VarCounter + '-EndDate').
                parent().datepicker({"autoclose":true,  "format":"dd-M-yyyy", 'language':'ru',});
        };
    });
}




Related Links

Dynamic Forms in Yii2 Operations
Yii Tabular Input

Yii2 gridview widget filter

Yii2 dropdown in gridview widget filter

How to add dropdown list in the filter field Grid View ?

Add this in Gridview columns array:

[
    'attribute' => 'attribute_name',
    'value' => 'attribute_value',
    'filter' => Html::activeDropDownList($searchModel, 'attribute_name', ArrayHelper::map(ModelName::find()->asArray()->all(), 'ID', 'Name'),['class'=>'form-control','prompt' => 'Select Category']),
],

View code as

<?php

use yii\helpers\Html;
use yii\grid\GridView;
use backend\modules\employee\models\Employee;
use yii\helpers\ArrayHelper;


$this->title = 'Employee Log Books';
$this->params['breadcrumbs'][] = $this->title;
?>

<div class="employeelogbook-index box box-body table-responsive">
 
    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>

    <p>
        <?= Html::a('Add Employee Log', ['create'], ['class' => 'btn btn-success']) ?>
    </p>
    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            [
                'attribute'=>'employee_staff_id',
                'value'=>'employeeStaff.staff_name',
                'filter' => Html::activeDropDownList($searchModel, 'employee_staff_id', ArrayHelper::map(Employee::find()->where(['status'=>'Working'])->orderBy('staff_name')->all(),'staff_id','staff_name'),['class'=>'form-control','prompt' => 'Select Category']),
                'label'=>'Staff Name',
                'options' => ['width' => '200']
                
            ],
            [
       'attribute' => 'date',
       'format' =>  ['date', 'php:d-m-Y'],    
                'options' => ['width' => '150']
                //'filter'=>false,
   ],          
            //'center_ccid',
            'batch',
            'subject',
            'topic',
            'description',
            'rate',
            'ta',
            'hour',

         
            [        
                'class' => 'yii\grid\ActionColumn',
                'contentOptions' => ['style' => 'width:70px;'],
                'header'=>'Act',
                'template' => '{view} {update} {delete}',
                'options' => ['width' => '70']
            ],
        ],
    ]); ?>
</div>

Other solutions

[
    'attribute'=>'attribute name',
    'filter'=>array("ID1"=>"Name1","ID2"=>"Name2"),
],

OR

[
    'attribute'=>'attribute name',
    'filter'=>ArrayHelper::map(Model::find()->asArray()->all(), 'ID', 'Name'),
],

DatePicker in the Filter field GridView

use dosamigos\datepicker\DatePicker;


add this code in your gridview

        [
       'attribute' => 'date',
                'value' => 'date',
       'format' =>  ['date', 'php:d-m-Y'],    
                'options' => ['width' => '150'],
                'filter'=>DatePicker::widget([
                    'model' => $searchModel,
                    'attribute' => 'date',  
                        'clientOptions' => [
                            'autoclose' => true,
                            'format' => 'yyyy-m-d'
                        ]
                ])
   ],

Yii2: filtering gridview from a form outside the header

<?php echo  $this->render('_search', ['model' => $searchModel]) ?>

 <?php 
     echo GridView::widget([
         'dataProvider' => $dataProvider,
         'columns' => [
            ['class' => 'yii\grid\SerialColumn'],
             ......
        ]);

 ?>

http://www.yiiframework.com/doc-2.0/guide-output-data-widgets.html#separate-filter-form

How to add a date range picker to filter for dates on a GridView for Yii2