Laravel $request value is null - laravel

Question

I want to make dropdown menu where you choose company and it shows you owners that are in that company but when i request data from my blade.php in my controller i get NULL.
This is my blade.php
<form>
<label>Company:</label>
<select id="test" name="test" class="form-control input-sm">
#foreach($companies as $company)
<option value="{{$company->id}}">{{$company->name}}</option>
#endforeach
</select>
</form>
and this is my controller
public function index(Request $request)
{
$companies = Company::all();
$company_id = $request->get('company');
$owners = Owner::where('company_id',$company_id)->get();
return view ('owners', compact('owners','companies'));
}
and it's not showing any user but if I put any number manually like this
$company_id = 1;
then it shows owners from company where ID is 1.
UPDATE 2
My form looks like this now
<form action="{{ action('OwnerController#index') method="get"}}">
and my route is this
Route::get('owners', 'OwnerController#index');
Its still same.

Answer 1

Not sure what you want. But here is something for you.
File => create.blade.php
<form action='/item' method='POST'>
<label>Item Name:</label>
<input type="text" name="name" class="form-control input-sm">
<label>Company:</label>
<select id="company" name="company" class="form-control input-sm">
#foreach($companies as $company)
<option value="{{ $company->id }}">{{ $company->name }}</option>
#endforeach
</select>
<button class="btn btn-primary">Create</button>
</form>
File => ItemController.php
public function store(Request $request)
{
try {
$this->validate($request, [
'company_id' => 'required',
'name' => 'required|unique:items,name'
]);
$obj = new Item();
$obj->company_id = $request->input('company_id');
$obj->name = $request->input('name');
$obj->save();
return redirect()->route('item.index')
->with('success', 'Create Successful');
} catch (\Exception $ex) {
Log::error($ex->getMessage());
return redirect()->route('item.create')
->with('fail', $ex->getMessage());
}
}

Answer 2

As I said before I was missing some script. This solved my problem.
<form method="get" id="company_change">
<label for="company">Company:</label>
<select id="company" name="company" onchange="document.getElementById('company_change').submit()">
<option value="">----Select Company-----</option>
#foreach($companies as $company)
<option value="{{$company->id}}">{{$company->name}}</option>
#endforeach
</select>
</form>
My route is
Route::resource('owners', 'OwnerController');

Answer 3

You dont need a form to fill your dropdown;
You create a relationship in your model between Company and Owner and you dont even need a where,simply use eloquent like this
$owners = Owner::get();
And then in your view simply get the company using eloquent:
$owner->company->name;
That's it done!