Uploading file help please

Yii 2.0 General Discussions
1

Hello,

I have found this tutorial about uploading a single file which is what I am trying to do:

There is one thing I do not yet understand, they say to create a model and controller but what if this upload field is part of another form which runs with another controller and model?




<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>


<?= $form->field($model, 'file')->fileInput() ?>

Let’s say I have this form:




    <?php $form = ActiveForm::begin(); ?>


    <?= $form->field($model, 'title')->textInput(['maxlength' => 160]) ?>


    <?= $form->field($model, 'posts')->textarea(['rows' => 6]) ?>


    <?= $form->field($model, 'keywords')->textInput(['maxlength' => 45]) ?>


    <?= $form->field($model, 'categories_id')->dropDownList(

    ArrayHelper::map(Categories::find()->all(),'id','name'),

    ['prompt'=>'Select a category']) ?>

   

    

    <?= $form->field($model, 'user_id')->textInput(['value' => \Yii::$app->user->identity->id]) ?>

   

  


    <div class="form-group">

        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>

    </div>


    <?php ActiveForm::end(); ?>

How to put this upload data into it?

Finally, what I do not understand is how to retrieve the file path and where will the file be recorded in the database if I wish to output the picture in another view?

Thank you,

Ben

2

The Link You have is Too enough for file Uploading, simply use that one, for other models use that model name , and use getinstance of that model from the controller, save image name in db, and file in filepath (eg./images/yourimagename.ext),

for view , use basePath and image tags.

3

Thank you for the reply.

Do you know a good tutorial somewhere please as I am still new to Yii2.

I cannot find anything that shows a step by step on the Yii website.

Thank you,

Ben

4

In your form you just have to add a file input and ‘enctype’ => ‘multipart/form-data’ to the form widget options.





<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>

//with model

<?= $form->field($model, 'file')->fileInput() ?>


//without model

<?= yii\helpers\Html::fileInput('file-name'); ?>

Now on your controller you take the file like this:




if (Yii::$app->request->isPost) {

    //with model

    $model->file = UploadedFile::getInstance($model, 'file');

    $model->file->saveAs('uploads/' . $model->file->baseName . '.' . $model->file->extension)

    //without model

    $file = UploadedFile::getInstanceByName('file-name');

    $file->saveAs('uploads/' . $file->baseName . '.' . $file->extension)

}
5

And that’s all I need really?

No name space at the top or helpers or anything similar?

When you said in the the controller, do you mean in the actionCreate()?




    public function actionCreate()

    {

        $model = new Posts();


        if ($model->load(Yii::$app->request->post()) && $model->save()) {

            return $this->redirect(['view', 'id' => $model->id]);

        } else {

            return $this->render('create', [

                'model' => $model,

            ]);

        }

    }

Thank you,

Ben

6

That’s all you need.

Of course, you will need all the namespaces, I didn’t mention that because is obvious.

And yes, when I said in your controller I meant in your actionCreate() or whatever is called.

7

Thanks Alexint,

I have a similar code to yours but keep getting an error as stated on this thread, any idea what is wrong please?

http://www.yiiframework.com/forum/index.php/topic/63524-class-frontendcontrollersuploadedfile-not-found/page__gopid__279946#entry279946

Thanks,

Ben