Undefined variable:user laravel - php

Question

I keep on getting this error whenever I try to enter the upload page.
Can anybody help?
I have already done the compact part to make sure that the variable is being passed to the view and also my route should be ok I think.
I tried using dd but all it does is keep on showing me the error
Error: Undefined variable: user (View: C:\xampp\htdocs\Evaluation\resources\views\upload.blade.php)
Here are my codes:
upload.blade.php
<form class="form-horizontal" method="post" action="{{ url('/userUpload')}}" enctype="multipart/form-data">
{{ csrf_field() }}
<input type="hidden" name="user_id" value="{{$user->id}}">
<div class="form-group">
<label for="imageInput" class="control-label col-sm-3">Upload Image</label>
<div class="col-sm-9">
<input type="file" name="file">
</div>
</div>
<div class="form-group">
<div class="col-md-6-offset-2">
<input type="submit" class="btn btn-primary" value="Save">
</div>
</div>
</form>
UploadController:
public function upload(){
return view(‘upload’);
}
public function store(Request $request,$id){
$this->validate($request, [
'file' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
]);
var_dump('has file '.$request->hasFile('file'));
if ($request->hasFile('file')) {
$image = $request->file('file');
$name = $image->getClientOriginalName();
$size = $image->getClientSize();
$id = $request->user_id;
$destinationPath = public_path('/images');
$image->move($destinationPath, $name);
$Image = new Image;
$Image->name = $name;
$Image->size = $size;
// $Image->user_id = $id;
//$Image->save();
$user->find($id);
dd($user);
$user->Images()->save($Image);
}
return redirect('/home');
}
public function test(){
$user = user_information::where('id')->get();
return view('upload', compact('user'));
}
Route: (this are my route)
Route::get('/UploadUser/upload','UploadController#upload’);
Route::post('/UploadUser','UploadController#store');
Route::post('/UploadUser/upload', 'UploadController#test');
Another question: I keep on getting this error when i try to upload a file, so what should I do?
Here is the error:
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or
update a child row: a foreign key constraint fails (form.images,
CONSTRAINT images_user_id_foreign FOREIGN KEY (user_id) REFERENCES
usere_information (id)) (SQL: insert into images (name,
size, user_id, updated_at, created_at) values (download.png,
4247, 1, 2017-10-25 08:54:57, 2017-10-25 08:54:57))
Image model:
class Image extends Model
{
protected $fillable = array('name','size','user_id');
public function user_informations() {
return $this->belongsTo('App\user_information', 'user_id', 'id');
}
}
Images table:
Schema::create('images', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('size');
$table->integer('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('user_informations');
$table->timestamps();
});
User_information table:
Schema::create('user_informations', function (Blueprint $table) {
$table->increments('id');
$table->engine = 'InnoDB';
$table->binary('signature');
$table->String('Name');
$table->timestamps();
});
User_information model:
class user_information extends Eloquent
{
protected $fillable = array('signature', 'Name');
protected $table = 'user_informations';
protected $primaryKey = 'id';
public function Images() {
return $this->hasOne('App\Image','user_id');
}
}
How to get the image?
Here is the view folder:
#foreach ($data as $object)
<b>Name: </b>{{ $object->Name }}<br><br>
Edit<br>
#foreach ($data3 as $currentUser)
<img src="{{ asset('public/images/' . $currentUser->Image->name ) }}">
#endforeach
#if($data3->count())
#foreach($data3 as $currentUser)
<a href="{!! route('user.upload.image', ['id'=>$currentUser->user_id]) !!}">
<button class="btn btn-primary"><i class ="fa fa-plus"></i>Upload Images</button>
</a>
#endforeach
#else
<a href="{!! route('user.upload.image', ['id'=>$object->id]) !!}">
<button class="btn btn-primary"><i class ="fa fa-plus"></i>Upload Images</button>
#endif
#endforeach
HomeController:
public function getInfo($id) {
$data = user_information::where('id',$id)->get();
$data3=Image::where('user_id',$id)->get();
return view('test',compact('data','data3'));

Answer 1

Because you didn't pass the user to your upload view, try to pass it like this :
public function upload(){
$id = 1 //The wanted user or if the user is authenticated use Auth::id()
$user = User::find($id);
return view('upload')->withUser($user);
}
Or if the user is authenticated use Auth in the view :
<form class="form-horizontal" method="post" action="{{ url('/userUpload')}}" enctype="multipart/form-data">
{{ csrf_field() }}
<input type="hidden" name="user_id" value="{{auth()->id()}}">
<div class="form-group">
<label for="imageInput" class="control-label col-sm-3">Upload Image</label>
<div class="col-sm-9">
<input type="file" name="file">
</div>
</div>
<div class="form-group">
<div class="col-md-6-offset-2">
<input type="submit" class="btn btn-primary" value="Save">
</div>
</div>
</form>
For the second problem it's because in the route you have
Route::post('/UploadUser','UploadController#store');
and the your store method signature is
public function store(Request $request,$id){
The $id parameter that did the problem because it's not defined in the route so simply remove it from the method signatre
public function store(Request $request){
$this->validate($request, [
'file' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
]);
if ($request->hasFile('file')) {
$image = $request->file('file');
$name = $image->getClientOriginalName();
$size = $image->getClientSize();
$id = $request->user_id; // here id is declared no need for the parameter
$destinationPath = public_path('/images');
$image->move($destinationPath, $name);
$Image = new Image;
$Image->name = $name;
$Image->size = $size;
$Image->user_id = $id;
$Image->save();
}
return redirect('/home');
}
For the third case you have to change the routes from :
Route::get('/UploadUser/upload','UploadController#upload’);
to
Route::get('/UploadUser/{user}/upload','UploadController#upload’)->name('user.upload.image');
And in the view add the id in the upload button url maybe like this :
{!! route('user.upload.image', ['user'=>$currentUser->id]) !!}
Then in the upload method :
public function upload(user_information $user){ // route model binding here
// dd($user); //for testing only :)
return view('upload')->withUser($user);
}
In the view change
<input type="hidden" name="user_id" value="{{auth()->id()}}">
To
<input type="hidden" name="user_id" value="{{$user->id()}}">
And you are good to go ;)
#foreach ($data as $currentUser)
<b>Name: </b>{{ $currentUser->Name }}<br><br>
Edit<br>
#if($currentUser->Image)
<img src="{{ asset('public/images/' . $currentUser->Image->name ) }}">
#endif
<a href="{!! route('user.upload.image', ['id'=>$currentUser->id]) !!}">
#endforeach

Answer 2

You have miss to pass id in your where condition,
public function test(){
$user = user_information::where('id',$id)->first();
return view('create1', compact('user'));
}
and you have to pass your user data into this,
public function upload(){
$user = user_information::where('id',$id)->first();
return view(‘upload’,compact('user'));
}
Hope it helps,

Answer 3

On your upload function, you have to pass the user variable because you use the $user in the view. So the controller will be
public function upload() {
$user = Auth::user();
return view('upload', compact('user'));
}
do not forget to change the $user based on your need.

Answer 4

You have to pass an $id variable into your test() method. Then please comment below what's the error next so I can follow you through.
Update
Since you don't want to pass an id. You can use:
public function test(){
$u = Auth::user();
$user = user_information::where('id', $u->id)->get();
return view('upload', compact('user'));
}
OR
Try to use first() instead of get().
More option:
I have noticed, you're using the upload() method here, why not passing the $user there? like so:
public function upload(){
$user = Auth::user();
return view(‘upload’, compact('user'));
}