How to update multiple images in kartik Upload widget? - yii2

Question

Here i can only able preview the images on update the model. I want to load the images properly so user can remove one r more file and update will work accordingly Here is my controller
public function actionUpdate($id)
{
$model = $this->findModel($id);
$session_data = \common\models\Customer::find()->where(['user_id' => $model->customer_user_id])->one();
$towing = \common\models\TowingRequest::find()->where(['id' => $model->towing_request_id])->one();
$images_old = \common\models\Images::find()->where(['=', 'vehicle_id', $model->id])->all();
$images = \common\models\Images::find()->where(['=', 'vehicle_id', $model->id])->one();
if (!$images) {
$images = new \common\models\Images();
}
if ($images_old) {
foreach ($images_old as $image) {
$baseurl = \Yii::$app->request->BaseUrl;
$image_url = $baseurl . '../backend/uploads/' . $image->thumbnail;
$all_images[] = Html::img("$image_url", ['class' => 'file-preview-image']);
}
} else {
$all_images = '';
}
$vehiclefeatures = new \common\models\VehicleFeatures();
$vehiclecondition = new \common\models\VehicleCondition();
$featuredata = \common\models\VehicleFeatures::find()->where(['=', 'vehicle_id', $model->id])->all();
$conditiondata = \common\models\VehicleCondition::find()->where(['=', 'vehicle_id', $model->id])->all();
$features = \common\models\Features::find()->all();
// $vf = Yii::$app->db->createCommand('SELECT * FROM features f left join vehicle_features vf on vf.features_id=f.id;')->queryAll();
$condition = \common\models\Condition::find()->all();
if ($model->load(Yii::$app->request->post()) && $towing->load(Yii::$app->request->post()) && $vehiclefeatures->load(Yii::$app->request->post()) && $vehiclecondition->load(Yii::$app->request->post()) && $images->load(Yii::$app->request->post())) {
$towing->save();
if (!$model->save()) {
$result = [];
// The code below comes from ActiveForm::validate(). We do not need to validate the model
// again, as it was already validated by save(). Just collect the messages.
foreach ($model->getErrors() as $attribute => $errors) {
$result[Html::getInputId($model, $attribute)] = $errors;
}
return $this->asJson(['validation' => $result]);
// Yii::$app->response->statusCode = 422;
}
//delet vehicle features and add new features
$command = Yii::$app->db->createCommand()
->delete('vehicle_features', 'vehicle_id = ' . $model->id)
->execute();
if ($vehiclefeatures->value) {
$vehicle_feature = \common\models\VehicleFeatures::inert_vehicle_feature($model, $vehiclefeatures->value);
}
//delete vehicle condition and add new features
$command = Yii::$app->db->createCommand()
->delete('vehicle_condition', 'vehicle_id = ' . $model->id)
->execute();
if ($vehiclecondition->value) {
$vehicle_condition = \common\models\VehicleCondition::inert_vehicle_condition($model, $vehiclecondition->value);
}
$photo = UploadedFile::getInstances($images, 'name');
if ($photo) {
$command = Yii::$app->db->createCommand()
->delete('images', 'vehicle_id = ' . $model->id)
->execute();
$save_images = \common\models\Images::save_container_images($model->id, $photo);
}
return $this->redirect(['view', 'id' => $model->id]);
}
return $this->render('update', [
'model' => $model,
'towing' => $towing,
'images' => $images,
'features' => $features,
'condition' => $condition,
'vehiclefeatures' => $vehiclefeatures,
'vehiclecondition' => $vehiclecondition,
'all_images' => $all_images,
'featuredata' => $featuredata,
'conditiondata' => $conditiondata,
'session_data' => $session_data,
]);
}
And here is my form where I have an issue on update the images. I know here I am just previewing the image by adding it in $all_images[] in the controller and initialPreview => $all_images in form to just show it on upload. Now I want exactly is to load the images properly so I can remove any image and can able to add more images. I just want here is how to load all the images properly in the upload widget on update After uploading it properly on update i can process it on the controller that i will delete and unlink all images and uploading the updating files
Here is my form with model images
<?=
$form->field($images, 'name[]')->widget(FileInput::classname(), [
'options' => ['accept' => 'image/*', 'multiple' => true],
'pluginOptions' => [
'previewFileType' => 'image',
'allowedFileExtensions' => ['jpg', 'gif', 'png', 'bmp','jpeg'],
'showUpload' => true,
'initialPreview' => $all_images,
'overwriteInitial' => true,
],
]);
?>

Answer 1

Yii2 Fileinput Upload Multiple Images, AJAX based Images Previews and Delete Images.
Please Refer For Multiple Images : https://stackoverflow.com/a/53832224/2218492
Table : products_images
id (Primary)
product_id (FK)
image
Table : product
id (Primary)
Name
ect
Here View Forms...
<?php
use yii\helpers\Html;
use yii\helpers\Url;
use kartik\widgets\FileInput;
?>
<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>
<?php echo '<label class="control-label">Choose an Image file(.png, .jpg)</label>'; ?>
<?php
//For Update Form : Fetch Uploaded Images and create Array to preview
$imagesList = array();
$imagesListId = array();
foreach ($model->productsImages as $img) {
$imagesList[] = Url::base(TRUE) . '/' . $img->image;
$imagesListId[]['key'] = $img->id;
}
?>
<?php
$empty_image = Url::base(TRUE) . "/uploads/image-upload-empty.png";
echo FileInput::widget([
'model' => $model,
'attribute' => 'products_image[]',
'name' => 'products_image[]',
'options' => ['multiple' => true, 'accept' => 'image/*', 'id' => 'products_image_id'],
'pluginOptions' => [
'initialPreview' => $imagesList,
'initialPreviewConfig' => $imagesListId,
'deleteUrl' => Url::to(['products/delete-image']),
'showCaption' => false,
'showRemove' => false,
'showUpload' => false,
'browseClass' => 'btn btn-primary col-lg-6 col-md-8 col-sm-8 col-xs-6',
'browseIcon' => '<i class="glyphicon glyphicon-plus-sign"></i> ',
'browseLabel' => 'Upload Image',
'allowedFileExtensions' => ['jpg', 'png'],
'previewFileType' => ['jpg', 'png'],
'initialPreviewAsData' => true,
'overwriteInitial' => false,
"uploadUrl" => Url::to(['products/upload']),
'uploadExtraData' => ['products_id' => $model->id, 'is_post' => $model->isNewRecord ? 'new' : 'update'],
'msgUploadBegin' => Yii::t('app', 'Please wait, system is uploading the files'),
//'msgUploadThreshold' => Yii::t('app', 'Please wait, system is uploading the files'),
//'msgUploadEnd' => Yii::t('app', 'Done'),
'msgFilesTooMany' => 'Maximum 15 products Images are allowed to be uploaded.',
'dropZoneClickTitle' => '',
"uploadAsync" => true,
"browseOnZoneClick" => true,
"dropZoneTitle" => '<img src=' . $empty_image . ' />',
'fileActionSettings' => [
'showZoom' => true,
'showRemove' => true,
'showUpload' => false,
],
'validateInitialCount' => true,
'maxFileCount' => 15,
'maxFileSize' => 5120, //5mb
'msgPlaceholder' => 'Select attachments',
],
'pluginEvents' => [
'filebatchselected' => 'function(event, files) {
$(this).fileinput("upload");
}',
/* 'uploadExtraData' => 'function() {
var out = {}, key, i = 0;
$(".kv-input:visible").each(function() {
$el = $(this);
key = $el.hasClass("kv-new") ? "new_" + i : "init_" + i;
out[key] = $el.val();
i++;
});
return out;
}', */
'filepredelete' => 'function(event, files) {
//var abort = true;
var index = uploaded_images.indexOf(files);
if (index !== -1) uploaded_images.splice(index, 1);
console.log(uploaded_images);
$("#productsmaster-images_array").val(uploaded_images);
//return abort;
}',
'fileuploaded' => 'function(event, data, previewId, index){
//alert( data.response.initialPreviewConfig[0].key);
uploaded_images.push(data.response.initialPreviewConfig[0].key);
console.log(uploaded_images);
$("#productsmaster-images_array").val(uploaded_images);
}',
/* 'filepreupload' => 'function(event, data, previewId, index){
var form = data.form, files = data.files, extra = data.extra,
response = data.response, reader = data.reader;
console.log(data.jqXHR);
console.log("File pre upload triggered");
}', */
],
]);
?>
<?= $form->field($model, 'images_array')->hiddenInput()->label(false) ?>
<?php echo '<br>' ?>
<?= Html::submitButton('<i class="glyphicon glyphicon-save-file"></i> UPLOAD FILE', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary'], ['students/create']) ?>
<?php ActiveForm::end(); ?>
<?php
$script = <<< JS
// initialize array
var uploaded_images = [];
JS;
$this->registerJs($script);
?>
Here Controller file:
<?php
/*
* Post products Images Upload Action Via FileInput Yii2 Extention.
*/
public function actionUpload() {
$files = array();
$allwoedFiles = ['jpg', 'png'];
if ($_POST['is_post'] == 'update') {
$products_id = $_POST['products_id'];
if ($_FILES) {
$tmpname = $_FILES['ProductsMaster']['tmp_name']['products_image'][0];
$fname = $_FILES['ProductsMaster']['name']['products_image'][0];
//Get the temp file path
$tmpFilePath = $tmpname;
//Make sure we have a filepath
if ($tmpFilePath != "") {
//save the filename
$shortname = $fname;
$size = $_FILES['ProductsMaster']['size']['products_image'][0];
$ext = substr(strrchr($shortname, '.'), 1);
if (in_array($ext, $allwoedFiles)) {
//save the url and the file
$newFileName = Yii::$app->security->generateRandomString(40) . "." . $ext;
//Upload the file into the temp dir
if (move_uploaded_file($tmpFilePath, 'uploads/products/' . $newFileName)) {
$productsImages = new productsImages();
$productsImages->products_id = $products_id;
$productsImages->image_for = 'products';
$productsImages->image = 'uploads/products/' . $newFileName;
$productsImages->created_at = time();
$productsImages->save();
$files['initialPreview'] = Url::base(TRUE) . '/uploads/products/' . $newFileName;
$files['initialPreviewAsData'] = true;
$files['initialPreviewConfig'][]['key'] = $productsImages->id;
return json_encode($files);
}
}
}
} /* else {
return json_encode(['error' => 'No files found for pload.']);
} */
return json_encode($files);
} else {
if (isset($_POST)) {
if ($_FILES) {
$files = ProductsMaster::SaveTempAttachments($_FILES);
return json_encode($files);
$result = ['files' => $files];
Yii::$app->response->format = trim(Response::FORMAT_JSON);
return $result;
} /* else {
echo json_encode(['error' => 'No files found for pload.']);
} */
}
}
}
/**
* Uploaded Images Delete Action on Update Forms Action
* #return boolean
*/
public function actionDeleteImage() {
$key = $_POST['key'];
if (is_numeric($key)) {
$products_image = ProductsImages::find()->where(['id' => $key])->one();
unlink(Yii::getAlias('#webroot') . '/' . $products_image->image);
$products_image->delete();
return true;
} else {
unlink(Yii::getAlias('#webroot') . '/uploads/products/temp/' . $key);
return true;
}
}
/**
** Create Products
**/
public function actionCreate() {
//Products Images
// temp store image moved and save to database.. with generated forms..
if (count($model->images_array) > 0) {
$images_array = explode(',', $model->images_array);
if (!empty($images_array) && $model->images_array != '') {
foreach ($images_array as $image) {
$file = Yii::$app->basePath . '/uploads/products/temp/' . $image;
$rename_file = Yii::$app->basePath . '/uploads/products/' . $image;
rename($file, $rename_file);
$productsImages = new productsImages();
$productsImages->products_id = $model->id;
$productsImages->image_for = 'products';
$productsImages->image = 'uploads/products/' . $image;
$productsImages->created_at = time();
$productsImages->save();
}
}
}
}
?>
Here Model
I added a load function to the attachment model.
<?php
/*
* Save Temp Images
*/
public static function SaveTempAttachments($attachments) {
$files = "";
$allwoedFiles = ['jpg', 'png'];
if ($_FILES) {
$tmpname = $_FILES['ProductsMaster']['tmp_name']['products_image'];
$fname = $_FILES['ProductsMaster']['name']['products_image'];
if (!empty($attachments)) {
if (count($fname) > 0) {
//Loop through each file
for ($i = 0; $i < count($fname); $i++) {
//Get the temp file path
$tmpFilePath = $tmpname[$i];
//Make sure we have a filepath
if ($tmpFilePath != "") {
//save the filename
$shortname = $fname[$i];
$size = $attachments['ProductsMaster']['size']['products_image'][$i];
$ext = substr(strrchr($shortname, '.'), 1);
if (in_array($ext, $allwoedFiles)) {
//save the url and the file
$newFileName = Yii::$app->security->generateRandomString(40) . "." . $ext;
//Upload the file into the temp dir
if (move_uploaded_file($tmpFilePath, 'uploads/products/temp/' . $newFileName)) {
$files['initialPreview'] = Url::base(TRUE) . '/uploads/products/temp/' . $newFileName;
$files['initialPreviewAsData'] = true;
// $files['uploadExtraData'][]['is_post'] = 'new';
$files['initialPreviewConfig'][]['key'] = $newFileName;
}
}
}
}
}
}
}
return $files;
}
?>