image is not uploading in YII ActiveForm - php

Question

I am new to Yii. I am using this code
<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>
<?= $form->field($model, 'description')->textarea(['rows' => 6]) ?>
<?= $form->field($model, 'image')->fileInput(['type' => 'file']) ?>
<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
When i try to print post data in my controller then image field is going blank;
If i print through $_FILES then file data is showing.
Please let me know how to get image in post method.

Answer 1

Step 1 :
In your model file define one variable.
public $uploadedImage;
Step 2 :
In your controller,
$model->uploadedImage = UploadedFile::getInstance($model, 'image');
$model->image = $model->uploadedImage->name;
After save() method write this to store image
$model->uploadedImage->saveAs('YOUR_WEBDIR_IMAGES_FOLDER/' . $model->uploadedImage->baseName . '.' . $model->uploadedImage->extension);
[If the above solution doesn't work then try this. :
Define another variable.
public $tempVarforImage;
In your controller
$model->tempVarforImage = $model->uploadedImage->name;
$model->image = $model->tempVarforImage;
(Because once I faced the issue in confliction of 'image' field from database and yii2 based 'image' variable)]

Answer 2

Create UploadForm model
namespace app\models;
use yii\base\Model;
use yii\web\UploadedFile;
class UploadForm extends Model{
public $image;// Image name
public function rules()
{
return [
[['image'], 'file'/* , 'skipOnEmpty' => false *//* , 'extensions' => 'png, jpg' */],
];
}
public function upload($fileName)
{
if ($this->validate()) {
$this->image->saveAs($fileName);
return true;
} else {
return false;
}
}
}
Controller code
Add at top of your file
use app\models\UploadForm;
use yii\web\UploadedFile;
Add this in your function
$model = User();
if ($model->load(Yii::$app->request->post())) {
$model1 = new UploadForm();
$model1->image = UploadedFile::getInstance($model, 'image');
$fileName = $model1->image->baseName.'_'.time();
$extension = $model1->image->extension;
$fileName = $fileName.'.'.$extension;
$filePath = WEBSITE_SLIDER_ROOT_PATH.$fileName;
if ($model1->upload($filePath)) {
//Save in database
}
}