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yii, handling image uploads

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In Model file function rules() :


<?php

array('product_image_1, product_image_2, product_image_3', 'file', 'types'=>'jpg, gif, png', 'allowEmpty'=>true),

?>



In View file set form like this :

<div class="form">

<?php $form=$this->beginWidget('CActiveForm', array(
 'id'=>'products-form',
 'enableAjaxValidation'=>false,
 'htmlOptions'=>array('enctype' => 'multipart/form-data')
)); ?>

 <p class="note">Fields with <span class="required">*</span> are required.</p>

 <?php echo $form->errorSummary($model); ?>

 <div class="row">
  <?php echo $form->labelEx($model,'product_name'); ?>
  <?php echo $form->textField($model,'product_name',array('size'=>60,'maxlength'=>255)); ?>
  <?php echo $form->error($model,'product_name'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_short_description'); ?>
  <?php echo $form->textArea($model,'product_short_description',array('rows'=>6, 'cols'=>50)); ?>
  <?php echo $form->error($model,'product_short_description'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_long_description'); ?>
  <?php echo $form->textArea($model,'product_long_description',array('rows'=>6, 'cols'=>50)); ?>
  <?php echo $form->error($model,'product_long_description'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_avg_price'); ?>
  <?php echo $form->textField($model,'product_avg_price',array('size'=>10,'maxlength'=>10)); ?>
  <?php echo $form->error($model,'product_avg_price'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_brand_id'); ?>
  <?php
  //echo $form->textField($model,'product_brand_id');


  echo $form->dropDownList($model,'product_brand_id', CHtml::listData(Brands::model()->findAll(), 'brand_id', 'brand_name'), array('empty'=>'--please select--'));



  ?>
  <?php echo $form->error($model,'product_brand_id'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_category_id'); ?>
  <?php
  //echo $form->textField($model,'product_category_id');
  //echo $form->dropDownList($model,'product_category_id', CHtml::listData(Categories::model()->findAll(), 'category_id', 'category_name'));
  ?>






  <select name='Products[product_category_id]'>
  <option value='0'>No Parent</option>
  <?php
                echo Categories::model()->get_category_hr(0, $model->product_category_id, '');
  ?>
  </select>










  <?php echo $form->error($model,'product_category_id'); ?>
 </div>



 <div class="row">
  <?php echo $form->labelEx($model,'product_main_page_appear_flag'); ?>
  <?php
  //echo $form->textField($model,'product_main_page_appear_flag');
  echo $form->dropDownList($model,'product_main_page_appear_flag', array('0'=>'No', '1'=>'yes'));
  ?>
  <?php echo $form->error($model,'product_main_page_appear_flag'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_avg_rating'); ?>
  <?php
  //echo $form->textField($model,'product_avg_rating');
  echo $form->dropDownList($model,'product_avg_rating', array(0,1,2,3,4,5));
  ?>
  <?php echo $form->error($model,'product_avg_rating'); ?>
 </div>

 <div class="row">

  <?php echo $form->labelEx($model,'product_image_1'); ?>
  <img src='<?php echo Yii::app()->request->baseUrl; ?>/images/product_images/<?echo $model->product_image_1?>'>
  <?php echo $form->fileField($model,'product_image_1'); ?>
  <?php echo $form->error($model,'product_image_1'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_image_2'); ?>
  <img src='<?php echo Yii::app()->request->baseUrl; ?>/images/product_images/<?echo $model->product_image_2?>'>
  <?php echo $form->fileField($model,'product_image_2'); ?>
  <?php echo $form->error($model,'product_image_2'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_image_3'); ?>
  <img src='<?php echo Yii::app()->request->baseUrl; ?>/images/product_images/<?echo $model->product_image_3?>'>
  <?php echo $form->fileField($model,'product_image_3'); ?>
  <?php echo $form->error($model,'product_image_3'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_twitter_text'); ?>
  <?php echo $form->textField($model,'product_twitter_text',array('size'=>60,'maxlength'=>255)); ?>
  <?php echo $form->error($model,'product_twitter_text'); ?>
 </div>

 <div class="row">
  <?php echo $form->labelEx($model,'product_facebook_text'); ?>
  <?php echo $form->textField($model,'product_facebook_text',array('size'=>60,'maxlength'=>255)); ?>
  <?php echo $form->error($model,'product_facebook_text'); ?>
 </div>

 <div class="row buttons">
  <?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>
 </div>

<?php $this->endWidget(); ?>

</div><!-- form -->





In Controller file edit actionCreate and actionUpdate functions like this:




<?php
/**
     * Creates a new model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     */
    public function actionCreate() {
        $model = new Products;

        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);

        if (isset($_POST['Products'])) {
            $model->attributes = $_POST['Products'];

            $model->product_image_1 = CUploadedFile::getInstance($model, 'product_image_1');
            $model->product_image_2 = CUploadedFile::getInstance($model, 'product_image_2');
            $model->product_image_3 = CUploadedFile::getInstance($model, 'product_image_3');
            if ($model->save()) {
                $model->product_image_1->saveAs('images/product_images/' . $model->product_image_1);
                $model->product_image_2->saveAs('images/product_images/' . $model->product_image_2);
                $model->product_image_3->saveAs('images/product_images/' . $model->product_image_3);


                $this->redirect(array('view', 'id' => $model->product_id));
                // redirect to success page
            }


            //if($model->save())
            // $this->redirect(array('view','id'=>$model->product_id));
        }

        $this->render('create', array(
            'model' => $model,
        ));
    }

    /**
     * Updates a particular model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id the ID of the model to be updated
     */
    public function actionUpdate($id) {
        $model = $this->loadModel($id);
        $model_old_data = $this->loadModel($id);

        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);

        if (isset($_POST['Products'])) {
            $model->attributes = $_POST['Products'];









            if ($model->product_image_1 = CUploadedFile::getInstance($model, 'product_image_1')) {
                $model->product_image_1->saveAs('images/product_images/' . $model->product_image_1);
                $attributes['product_image_1'] = $model->product_image_1;
            } else {

                $model->product_image_1 = $model_old_data->product_image_1;
            }


            if ($model->product_image_2 = CUploadedFile::getInstance($model, 'product_image_2')) {
                $model->product_image_2->saveAs('images/product_images/' . $model->product_image_2);
                $attributes['product_image_2'] = $model->product_image_2;
            } else {

                $model->product_image_2 = $model_old_data->product_image_2;
            }


            if ($model->product_image_3 = CUploadedFile::getInstance($model, 'product_image_3')) {
                $model->product_image_3->saveAs('images/product_images/' . $model->product_image_3);
                $attributes['product_image_3'] = $model->product_image_3;
            } else {

                $model->product_image_3 = $model_old_data->product_image_3;
            }





            if ($model->save()) {

                $this->redirect(array('view', 'id' => $model->product_id));
                // redirect to success page
            }
        }

        $this->render('update', array(
            'model' => $model,
        ));
    }
?>





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