Yii2 Basic Upload multiple images while creating a content - yii2

Question

I'm trying to upload multiple images when I create a Post, but only one Image is stored in database, in server all images are saved but in my table only first image is saved but not all so I created function for upload
// Function to upload images
public function CreateGallery($model_Post, $model_Gallery)
{
$model_Post->Post_id = md5(microtime());
$model_Post->User_id = Yii::$app->user->id;
$GLRID = md5(uniqid());
// file
$GFolder = 'upload/images/'. $model_Post->Post_id .'/' ;
mkdir ($GFolder, 0777, true);
if ( $model_Post->save() ){
$model_Gallery->GalleryFile = UploadedFile::getInstances($model_Gallery, 'GalleryFile');
$ly_GalName = uniqid();
foreach ($model_Gallery->GalleryFile as $GalleryImage) {
++$ly_GalName;
$model_Gallery->Gallery_id = ++$GLRID;
$model_Gallery->User_id = $model_Post->User_id;
$model_Gallery->Post_id = $model_Post->Post_id;
$GalleryImage->saveAs($GFolder . $GalName . '.' . $GalleryImage->extension);
$model_Gallery->Gallery_image = $GFolder . $GalName . '.' . $GalleryImage->extension;
}
$model_Gallery->save(false);
}
}
and inside my controller I add the function I created
public function actionCreate()
{
$model_Post = new Post();
$model_Gallery = new Gallery;
$actions_UploadImages = new ActionsUploadImages();
if ($model->load(Yii::$app->request->post()) ) {
$actions_UploadImages->CreateGallery($model_Post, $model_Gallery)
return $this->redirect(['view', 'id' => $model_Post->Post_id]);
} else {
return $this->render('create', [
'model_Post' => $model_Post,
'model_Gallery' => $model_Gallery,
]);
}
}
and my views/create my code is
<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>
<?= $form->field($model_Post, 'Post_title')->textInput(['maxlength' => true]) ?>
<?= $form->field($model_Gallery, 'GalleryFile[]')->fileInput(['multiple' => true, 'accept' => 'image/*']) ?>
<?= $form->field($model_Post, 'Post_text')->textarea(['rows' => 2]) ?>
<?= $form->field($model_Post, 'Permission_id')->dropdownList($model_Permission->PermissionList()) ?>
<div class="form-group">
<?= Html::submitButton($model_Post->isNewRecord ? 'Create' : 'Update', ['class' => $model_Post->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
I tried to change gallery_id to AUTO_INCREMENT but still the same problem, I tried to remove if ( $model_Post->save() ), but I get error from database. Only like it's is now it's save all images on server but in table save only one image.
//// gallery model :
<?php
namespace app\models;
use Yii;
/**
* This is the model class for table "gallery".
*
* #property string $Gallery_id
* #property string $Gallery_image
* #property string $Post_id
* #property string $User_id
*
* #property Post $post
* #property Userlogin $user
*/
class Gallery extends \yii\db\ActiveRecord
{
public $GalleryFile;
/**
* #inheritdoc
*/
public static function tableName()
{
return 'gallery';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['Gallery_id', 'Post_id', 'User_id'], 'required'],
[['Gallery_id'], 'string', 'max' => 200],
[['Gallery_image'], 'string', 'max' => 350],
[['Post_id', 'User_id'], 'string', 'max' => 300],
[['GalleryFile'], 'file', 'skipOnEmpty' => false, 'extensions' => 'png, jpg, jpeg, gif', 'maxFiles' => 5],
[['Post_id'], 'exist', 'skipOnError' => true, 'targetClass' => Post::className(), 'targetAttribute' => ['Post_id' => 'Post_id']],
[['User_id'], 'exist', 'skipOnError' => true, 'targetClass' => Userlogin::className(), 'targetAttribute' => ['User_id' => 'User_id']],
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'Gallery_id' => 'Gallery ID',
'Gallery_image' => 'Gallery Image',
'Post_id' => 'Post ID',
'User_id' => 'User ID',
];
}
/**
* #return \yii\db\ActiveQuery
*/
public function getPost()
{
return $this->hasOne(Post::className(), ['Post_id' => 'Post_id']);
}
/**
* #return \yii\db\ActiveQuery
*/
public function getUser()
{
return $this->hasOne(Userlogin::className(), ['User_id' => 'User_id']);
}
/**
* #inheritdoc
* #return \app\queries\GalleryQuery the active query used by this AR class.
*/
public static function find()
{
return new \app\queries\GalleryQuery(get_called_class());
}
}

Answer 1

you need write a new model en the for each , like that
Function
Create a new model object in the for each .
Set the $model_Gallery->save(false); in inside the foreach
// Function to upload images
public function CreateGallery($model_Post, $model_Gallery)
{
$model_Post->Post_id = md5(microtime());
$model_Post->User_id = Yii::$app->user->id;
$GLRID = md5(uniqid());
// file
$GFolder = 'upload/images/' . $model_Post->Post_id . '/';
mkdir($GFolder, 0777, true);
if ($model_Post->save()) {
$model_Gallery->GalleryFile = UploadedFile::getInstances($model_Gallery, 'GalleryFile');
$ly_GalName = uniqid();
foreach ($model_Gallery->GalleryFile as $GalleryImage) {
$model_GalleryImage = new Gallery;
++$ly_GalName;
$model_GalleryImage->Gallery_id = ++$GLRID;
$model_GalleryImage->User_id = $model_Post->User_id;
$model_GalleryImage->Post_id = $model_Post->Post_id;
$GalleryImage->saveAs($GFolder . $GalName . '.' . $GalleryImage->extension);
$model_GalleryImage->Gallery_image = $GFolder . $GalName . '.' . $GalleryImage->extension;
$model_GalleryImage->save(false); //here , remove 'false' to work validations
}
}
}
Controller
when the action load the data ,it should not be like that ?
if ($model_Gallery->load(Yii::$app->request->post()) and $model_Post->load(Yii::$app->request->post())) {
//the rest of the code
}
Please note that we use save(false) to skip over validations inside the models as the user input data... with the user input

Answer 2

All you have to do is iterate $_FILES object using foreach loop and create new model every time. To validate code manage flag for that