add Image and Upload helper classes

backend/controllers/UploadController.php

@@ -1,8 +1,11 @@
 <?php
 namespace backend\controllers;
 
-use yii\rest\ActiveController;
 use yii\rest\Controller;
+use common\models\Image;
+use backend\models\UploadForm;
+use yii\web\UploadedFile;
+USE Yii;
 
 class UploadController extends  Controller
 {
@@ -19,28 +22,30 @@ class UploadController extends  Controller
 
     public function actionUpload()
     {
-        $postdata = fopen( $_FILES[ 'data' ][ 'tmp_name' ], "r" );
-//         /* Get file extension */
-        $extension = substr( $_FILES[ 'data' ][ 'name' ], strrpos( $_FILES[ 'data' ][ 'name' ], '.' ) );
+    	$model = new UploadForm();
+    	$resp = [];
+    	
+    	if ( $model->load(Yii::$app->request->post()) && $model->validate()) {
+    		
+    		
+    		$model->image =  UploadedFile::getInstance($model, 'image');
+    		
+    		/**save into frontend/web/uploads/profile*/
+    		$path = \common\components\Image::upload($model->image,'profile');
+	
+	        $image = new Image();
+	        $image->path = $path;
+	        $image->save();
+        
+			/* the result object that is sent to client*/
 
-//         /* Generate unique name */
-        $filename =  \Yii::getAlias('@frontend') ."/web/profile/" . uniqid() . $extension;
-        echo $filename;
-
-//         /* Open a file for writing */
-        $fp = fopen( $filename, "w" );
-
-        /* Read the data 1 KB at a time
-          and write to the file */
-        while( $data = fread( $postdata, 1024 ) )
-            fwrite( $fp, $data );
-
-        /* Close the streams */
-        fclose( $fp );
-        fclose( $postdata );
-
-		/* the result object that is sent to client*/
-
-		echo "ok"; 
+			$resp['ok'] = 1;
+			$resp['id_image'] = $image->id_image;
+    	}else{
+			$resp['ok'] = 0;
+    		$resp['message'] = print_r($model->errors,true);
+    	}
+    	
+    	return $resp;
     }
 }