Store and update method together using modal view laravel - laravel

Question

I've a store and update method that I would like to use the same modal box to prompt, however I notice that the store method takes the syntax of
<form class="form-horizontal" role="form" method="POST" action="/manage_accounts" novalidate>
whereas my update method,
<form class="form-horizontal" role="form" method="POST" action="/manage_accounts/{{ $user->id }}" novalidate>
<input type="hidden" name="_method" value="PUT">
Is there a way that I can specify which method to use depending on the option chosen, I have two buttons created, each respectively.
<button type="button" class="btn btn-info btn-md" data-toggle="modal" data-target="#form">Register New User</button>
<button class="btn btn-sm btn-warning" type="button"
data-toggle="modal" data-target="#form">Edit <i class="glyphicon glyphicon-edit"></i></button>
Is there a way I can call separately using the same modal box or I have to create two duplicate modal box, one for store, the other for update?
My partial code is shown below ..
blade.php
<div class="well col-xs-9 col-sm-9 col-md-9 col-lg-9 col-xs-offset-1 col-sm-offset-1 col-md-offset-1 col-lg-offset-1">
<div class="row user-row">
<div class="col-xs-2 col-sm-3 col-md-4 col-lg-4">
<h5 style="font-weight: bold">{{ $user->name }}</h5>
</div>
<div class="col-xs-8 col-sm-8 col-md-8 col-lg-8 dropdown-user" data-for=".{{ $user->id }}">
<h5 class="glyphicon glyphicon-chevron-down text-muted pull-right"> </h5>
</div>
</div>
<div class="row user-infos {{ $user->id }}">
<div class="col-xs-12 col-sm-12 col-md-10 col-lg-10 col-xs-offset-0 col-sm-offset-0 col-md-offset-1 col-lg-offset-1">
<div class="panel panel-info">
<div class="panel-heading">
<h2 class="panel-title">User Information</h2>
</div>
<div class="panel-body">
<div class="row">
<div class=" col-md-10 col-lg-10 hidden-xs hidden-sm">
<div class="col-xs-5">User level:</div><div class="col-xs-5"> {{ $user->role->role_description }}</div>
<div class="col-xs-5">Email:</div> <div class="col-xs-5"> {{ $user->email }}</div>
<div class="col-xs-5">Phone number: </div> <div class="col-xs-5"> {{ $user->mobile }} </div>
<div class="col-xs-5">Office extension: </div> <div class="col-xs-5"> [ TO IMPLEMENT ]</div>
</div>
</div>
</div>
<div class="panel-footer">
<button class="btn btn-sm btn-warning btn--edit" type="button"
data-toggle="modal" data-target="#form">Edit <i class="glyphicon glyphicon-edit"></i></button>
<span class="pull-right">
<button class="btn btn-sm btn-danger" type="button">Inactive <i class="glyphicon glyphicon-remove"></i></button>
</span>
</div>
</div>
</div>
</div>
<input type="hidden" name="user_id" value="{{ $user->id }}" />
#endforeach
</div>
#if(Session::has('flash_message'))
<div class="alert alert-success col-xs-9 col-sm-9 col-md-9 col-lg-9 col-xs-offset-1 col-sm-offset-1 col-md-offset-1 col-lg-offset-1">
{{ Session::get('flash_message') }}
</div>
#endif
<div class="col-sm-offset-1 col-sm-2">
<!-- Trigger the modal with a button -->
<button type="button" class="btn btn-info btn-md" data-toggle="modal" data-target="#form">Register New User</button>
<!-- Modal -->
<div id="form" class="modal fade" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">User Information</h4>
</div>
<div class="modal-body">
<form class="form-horizontal" role="form" method="POST" action="/manage_accounts/{{ $user->id }}" novalidate>
<input type="hidden" name="_method" value="PUT">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<div class="form-group">
<label class="control-label col-sm-3" for="name">Username:</label>
<div class="col-sm-5 #if ($errors->has('name')) has-error #endif">
<input type="text" class="form-control" type="hidden" id="name" name="name" placeholder="Enter username">
#if ($errors->has('name')) <p class="help-block">{{ $errors->first('name') }}</p> #endif
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-3" for="password">Password:</label>
<div class="col-sm-5 #if ($errors->has('password')) has-error #endif">
<input type="password" class="form-control" type="hidden" id="password" name="password" placeholder="Enter login password">
#if ($errors->has('password')) <p class="help-block">{{ $errors->first('password') }}</p> #endif
</div>
</div>
...
controller.php
class ManageAccountsController extends Controller
{
public $userRepository;
public function __construct(UserRepository $userRepository)
{
$this->userRepository = $userRepository;
}
public function index()
{
$users = User::orderBy('name')->get();
$roles = Role::all();
return view('manage_accounts', compact('users', 'roles'));
}
public function store(StoreUserRequest $request)
{
// validation already handled using this: http://laravel.com/docs/5.0/validation#form-request-validation
$this->userRepository->upsert($request);
Session::flash('flash_message', 'User successfully added!');
return redirect()->back();
}
public function update(StoreUserRequest $request, $id)
{
// validation already handled using this: http://laravel.com/docs/5.0/validation#form-request-validation
$this->userRepository->upsert($request, $id);
Session::flash('flash_message', 'User successfully updated!');
return redirect()->back();
}
}
class UserRepository {
public function upsert($data, $id)
{
// You will also need something like this
if(isset($id))
{
$user = User::find($id);
}
else {
$user = new User;
}
$user->name = $data['name'];
$user->email = $data['email'];
$user->password = Hash::make($data['password']);
$user->mobile = $data['mobile'];
$user->role_id = $data['role_id'];
// save our user
$user->save();
return $user;
}
}