Only update image if user uploaded a new one, Laravel - php

Question

I have an edit form which has an image field where a user can upload a new image if he wants to.
But if the user does not upload a new photo I don't want to validate the image field and just use the photo that's already in the database. And not update the image field at all.
Here is my edit function:
public function postEdit($id) {
$product = Product::find($id);
// This should be in product model, just testing here
$edit_rules = array(
'category_id' => 'required|integer',
'title' => 'required|min:2',
'description' => 'required|min:10',
'price' => 'required|numeric',
'stock' => 'integer'
);
// Add image rule only if user uploaded new image
if (Input::has('image')) {
$edit_rules['image'] = 'required|image|mimes:jpeg,jpg,bmp,png,gif';
}
$v = Validator::make(Input::all(), $edit_rules);
if ($product) {
if ($v->fails()) {
return Redirect::back()->withErrors($v);
}
// Upload the new image
if (Input::has('image')) {
// Delete old image
File::delete('public/'.$product->image);
// Image edit
$image = Input::file('image');
$filename = date('Y-m-d-H:i:s')."-".$image->getClientOriginalName();
Image::make($image->getRealPath())->resize(600, 600)->save('public/img/products/'.$filename);
$product->image = 'img/products/'.$filename;
$product->save();
}
// Except image because already called save if image was present, above
$product->update(Input::except('image'));
return Redirect::to('admin/products')->with('message', 'Product updated.');
}
return Redirect::to('admin/products');
}
Using this I can update all the values except the image.
If I don't upload a new photo it saves all other updated values.
If I do upload a new photo it just ignores it and saves all other updated values, doesn't upload the new photo.

Answer 1

Check if the request has the file:
public function update(Request $request)
{
// Update the model.
if($request->hasFile('photo')) {
// Process the new image.
}
// ...
}

Answer 2

public function update() {
$id=Input::get('id');
$rules= array('name'=>'required|regex:/(^[A-Za-z]+$)+/',
'detail'=>'required|regex:/(^[A-Za-z]+$)+/',
'images' => 'required|image');
$dat = Input::all();
$validation = Validator::make($dat,$rules);
if ($validation->passes()){
$file =Input::file('images');
$destinationPath = 'image/pack';
$image = value(function() use ($file){
$filename = date('Y-m-d-H:i:s') . '.' . $file->getClientOriginalExtension();
return strtolower($filename);
});
$newupload =Input::file('images')->move($destinationPath, $image);
DB::table('pkgdetail')
->where('id', $id)
->limit(1)
->update(array('name' => Input::get('name'), 'detail' => Input::get('detail'), 'image' => $newupload));
$data=PackModel::get_all();
return View::make('pkg_dis')->with('data',$data)
->withErrors($validation)
->with('message', 'Successfully updated.');
}
}

Answer 3

use Illuminate\Support\Facades\Input;
public function update(Request $request, $id)
{
if ($tag = Tag::find($id))
{
$this->validate($request, [
'tag_name' => 'required|min:3|max:100|regex: /^[a-zA-Z0-9\s][a-zA-Z0-9\s?]+$/u|unique:tags,tag_name,'.$id.',id',
]);
$tag->tag_name=$request->input('tag_name');
// get the image tag_img_Val
if($request->hasFile('tag_image'))
{
$this->validate($request, [
'tag_image' => 'image|mimes:jpeg,png,jpg,gif,svg|max:1000',
]);
$img = $request->file('tag_image');
$old_image = 'uploads/' . $tag->tag_image;//get old image from storage
if ($img != '')
{
$image = rand() . '_' . ($img->getClientOriginalName());
$path = 'uploads/';
//Storing image
if ($img->move(public_path($path), $image))
{
$tag->tag_image = $image;
if ($tag->update())
{
if (is_file($old_image)) {
unlink($old_image); // delete the old image
}
return response()->json(['message' => 'Tag has been updated successfully.'],200);
}
else
{
unlink($image); // delete the uploaded image if not updated in database
return response()->json(['message' => "Sorry, Tag not updated"],500);
}
}
else
{
return response()->json(['message' => "Sorry, Image not moved"],500);
}
}
else
{
return response()->json(['message' => "Sorry, Image not uploaded"],500);
}
}
else
{
if($tag->update(Input::except('tag_image')))
{
return response()->json(['message' => 'Tag has been updated successfully.'],200);
}
else
{
return response()->json(['message' => "Sorry, Tag not updated"],500);
}
}
}
else
{
return response()->json(['message' => 'Tag not found'], 404);
}
}

Answer 4

You need to use multipart for form enctype

Answer 5

You can use another function to delete the images from the folder. like here
private function unlinkPostImages($images)
{
if(!empty($images)){
foreach ($images as $img){
$old_image = public_path('storage/' . $img->image);
if (file_exists($old_image)) {
#unlink($old_image);
}
}
}
}
Then call this function above image delete function. like this...
$this->unlinkPostImages($getId->images); // this will delete image from folder
$getId->images()->delete(); // --> this delete from database table $post->id
same this Click here..
my update function
public function update(UpdatePostRequest $request, Post $post)
{
//
$data = $request->only(['title', 'description', 'contents', 'price']);
// صورة الإعلان //
if ($request->hasFile('image')) {
Storage::disk('public')->delete($post->image);
$imagePath = $request->image;
$filename = Str::random(10).'-'.time().'-'.$imagePath->getClientOriginalName();
$image_resize = Image::make($imagePath->getRealPath());
$image_resize->fit(120);
$image_resize->orientate();
$image_resize->save(public_path('storage/images/' .$filename), 100);
$sImg = 'images/'. $filename;
$data['image'] = $sImg;
}
// -------- //
if ($request->hasFile('images'))
{
$getId = Post::find($post->id);
$this->unlinkPostImages($getId->images);
$getId->images()->delete();
$uploadPicture = array();
foreach ($request->file('images') as $photo) {
$file = $photo;
$filename = $file->getClientOriginalName();
$picture = date('His').'-'.$filename;
$file->move(public_path('storage/images/'), $picture);
array_push($uploadPicture, new PostImages(array('image' => 'images/'. $picture)));
}
$post->images()->saveMany($uploadPicture);
}
if ($request->input('contents')) {
$data['content'] = $request->contents;
}
//dd($data);
$post->update($data);
session()->flash('SUCCESS', 'تم تحديث الإعلان بنجاح.');
return redirect()->route('post.show', [$post->id, Post::slug($post->title)]);
}

Answer 6

In controller part:
$destinationPath = 'uploads';
$extension = Input::file('image')->getClientOriginalExtension();
var_dump($extension);
$fileName = rand(11111,99999).'.'.$extension;
Input::file('image')->move($destinationPath, $fileName);