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HOME/Blog/Difference of syntax in Yii & Yii 2.0
Difference of syntax in Yii & Yii 2.0

Difference of syntax in Yii & Yii 2.0

On 2014-12-30 - By Janvi Kapopara

In this blog i am defining the basic difference of syntax in yii and yii 2.0. so the new user or yii user can easily understand what is the main changes required while making a web application in yii 2.0.

Here, in Yii 2.0 main change is Array() is removed totally from the programming. Instead of array() , yii 2.0 uses [ ] . In Yii only one file is used for model file. For ex.: User.php

While in Yii 2.0 two files required. for example: User.php , UserSearch.php

This are the basic changes required .i have put all the syntax in this table format so that it can easily understand by all users.

 

Sr. No.                Controll Name Yii Code  
1. Text Box Yii 2.0

<?= $form->field($model, 'bank_full_name', ['template' => "{label} {input} <span class='status'>&nbsp;</span> "])->textInput() ?>

  
    Yii

<?php echo $form->labelEx($model,'bank_full_name'); ?>

<?php echo $form->error($model,'bank_full_name'); ?>

<?php echo $form->textField($model,'bank_full_name',array('size'=>25,'maxlength'=>60)); ?>

  
         
2 DropdownList Yii 2.0

<?= $form->field($model, 'fees_payment_cheque_bank',['template' => "{label} {input} <span class='status'>&nbsp;</span> "])->dropDownList(ArrayHelper::map(app\modules\fees\models\BankMaster::find()->all(),'bank_id','bank_full_name'),['prompt'=>'--Select Bank--'])  ?>

  
    Yii <?php echo $form->labelEx($model,'fees_payment_cheque_bank'); ?>
<?php echo $form->dropdownList($model,'fees_payment_cheque_bank', BankMaster::items(),array('empty' => 'Select Bank')); ?><span class="status">&nbsp;</span>
<?php echo $form->error($model,'fees_payment_cheque_bank'); ?>		  
         
3 Date Picker Yii 2.0 <?= $form->field($model, 'batch_start_date', ['template' => "{label} {input} <span class='status'>&nbsp;</span> "])->widget(yii\jui\DatePicker::className(),
                    [
                        'clientOptions' =>[
                        'dateFormat' => 'dd-mm-yyyy',
                        'changeMonth'=> true,
                        'changeYear'=> true,
                        'autoSize'=>true,
            'yearRange'=>'1900:'.(date('Y')+1),
                        'showOn'=> "button",
                        'buttonImage'=> Yii::$app->homeUrl."images/calendar.png",
                        'htmlOptions'=>[
                        'style'=>'width:250px;',
            'class'=>'form-control',
                         ],]]) ?>		  
    Yii <?php echo $form->labelEx($model,'batch_start_date'); ?>
        <?php echo $form->error($model,'batch_start_date'); ?>
        <?php if($model->batch_start_date != '' && $model->batch_start_date !='0000-00-00')
                $model->batch_start_date= date('d-m-Y',strtotime($model->batch_start_date));
        else
            $model->batch_start_date = '';
            $this->widget('zii.widgets.jui.CJuiDatePicker', array(
                'model'=>$model,
            'attribute'=>'batch_start_date',
                'options'=>array(
            //'showOn'=> "button",
            'dateFormat'=>'dd-mm-yy',
            'changeYear'=>'true',
            'changeMonth'=>'true',
            'showAnim' =>'slide',
            'yearRange'=>'1900:'.(date('Y')+1),
            'buttonImage'=>Yii::app()->theme->baseUrl.'/images/calendar.png',           
                ),
            'htmlOptions'=>array(
            'style'=>'width:250px;vertical-align:top',
            'readonly'=>true,
                ),
            ));
            ?><span class="status">&nbsp;</span>		  
         
4 Button Yii 2.0 <?= Html::a('Cancel', ['/course/course/view?id='.$_REQUEST['courseId']], ['class' => 'btn btn-default']) ?>  
    Yii echo CHtml::link('Cancel', array('/course/'.$_REQUEST['courseId']), array('class'=>'btnCan'));  
         
5 Controller & Form File Yii 2.0

in any controller file,_form file if you are uses another model u need to display at top of the file:

For Example:

in my BatchController.php file i am using Course Model then i have to write the following:

use app\modules\course\models\Course;

  
    Yii  No Need  
         
6 Controller File Yii 2.0

protected function findModel($id)
    {
        if (($model = NationalHolidays::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }

$this->findModel($id)->delete();

  
    Yii

public function loadModel($id)
    {
        $model=NationalHolidays::model()->findByPk($id);
        if($model===null)
            throw new CHttpException(404,'The requested page does not exist.');
        return $model;
    }

$model=$this->loadModel($id);

  
         
7 Create Command Query Yii 2.0         $batch=$this->batch_name;
        $course_id=$this->course_id;

        $query= new \yii\db\Query();
        $query -> select(['batch_name'])
               -> from('batch')
               -> where('batch_name="'.$batch.'" AND                course_id='.$course_id);

        $command=$query->createCommand();
        $batch_name=$command->queryOne();		  
    Yii             $batch=$this->batch_name;
            $course_id=$this->course_id;
            $batch_name=Yii::app()->db->createCommand()
                    ->select('batch_name')
                    ->from('batch')
                    ->where('batch_name="'.$batch.'" AND course_id='.$course_id)
                        ->queryAll();   		  
         
8 render / redirect  Yii 2.0

return $this->render('create', [
                'model' => $model,
            ]);   

return keyword is used.

  
    Yii $this->render('create',array(
            'model'=>$model,
        ));		  
         
9 Hidden Field  Yii 2.0 <?= Html::activeHiddenInput($model, 'scenario',['value'=>$model->scenario]); ?>  
    Yii <?php echo CHtml::hiddenField('scenario',$model->scenario); ?>  
         
10 Check Box Yii 2.0 <?= $form->field($model, 'message_of_day_active', ['template' => "{input} {label} <span class='status'>&nbsp;</span>"])->checkBox(['value'=>1, 'uncheckValue'=>0], true); ?>  
    Yii <?php echo $form->labelEx($model,'message_of_day_active'); ?>
 <?php echo $form->checkBox($model,'message_of_day_active', array('value'=>1, 'uncheckValue'=>0)); ?>
 <?php echo $form->error($model,'message_of_day_active'); ?>		  
         
11 TextArea Yii 2.0 <?= $form->field($model, 'message',['template' => "{label} {input} <span class='status'>&nbsp;</span> "])->textArea(['maxlength' => 1000]) ?>  
    Yii <?php echo $form->textArea($model,'message',array('rows'=>10, 'cols'=>450,'style'=>'float:left;height:100px;width:500px')); ?><span class="status">&nbsp;</span>
        <b style="color:red"><?php echo $form->error($model,'message'); ?></b>		  
         
12 _form.php Yii 2.0 <?php $form = ActiveForm::begin([
    'id' => 'batch-form',
    'options' => ['class' => 'form-horizontal'],
]); ?>
<?php ActiveForm::end(); ?>		  
    Yii <?php $form=$this->beginWidget('CActiveForm', array(
    'id'=>'message-of-day-form',
    'enableAjaxValidation'=>true,
    'clientOptions'=>array('validateOnSubmit'=>true),
)); ?>

<?php $this->endWidget(); ?>		  
         
13 Password Field Yii 2.0 <?= $form->field($model, 'current_pass',['template' => "{label} {input} <span class='status'>&nbsp;</span>{error} "])->passwordInput(['maxlength' => 60]) ?>  
    Yii <?php echo $form->labelEx($model,'current_pass'); ?>
        <?php echo $form->passwordField($model,'current_pass',array('size'=>50,'maxlength'=>50)); ?><span class="status">&nbsp;</span>
        <?php echo $form->error($model,'current_pass'); ?>		  
         
14 Relation Yii 2.0     public function getRelcourse()
    {
        return $this->hasOne(Course::className(), ['course_id' => 'course_id']);
    }		  
    Yii return array(
    'Rel_course' => array(self::BELONGS_TO, 'Course','course_id'),
    );		  
         
15 Check Box Yii 2.0 Yii::$app->user->can("important-notice/update")  
    Yii Yii::$app()->user->checkAccess('ImportantNotice.Update')  
         
16 Data Fetch Yii 2.0

1) $info = StudentInfo::findOne($model->student_transaction_student_id);

2) $info = StudentInfo::find()->where(['student_info_transaction_id'=>$id])->one();

3) $use_model = User::findOne($model->student_transaction_user_id)->delete();

  
    Yii

1) $info = StudentInfo::model()->findByPk($model->student_transaction_student_id);

2) $info = StudentInfo::model()->findByAttributes(array('student_info_transaction_id'=>$id));

3) $use_model = User::model()->findByPk($model->student_transaction_user_id)->delete();