Including the option to add users to items

app/Http/Controllers/ItemController.php

@@ -11,9 +11,10 @@ class ItemController extends Controller
     {
         $item = Item::find($id);
         if (!$item || $item->product->user_id != \Auth::id()) return back();
+        $users = $item->users()->get();
 
         $otherItems = Item::where([['product_id', $item->product_id], ['id', '!=', $id]])->get();
-        return view('item', compact('item', 'otherItems'));
+        return view('item', compact('item', 'otherItems', 'users'));
     }
 
     public function index()
@@ -39,8 +40,8 @@ class ItemController extends Controller
             ]
         );
 
-        $user = \App\User::find(\Auth::id());
-        $user->items()->create(['name' => request('item'), 'product_id' => request('product_id')]);
+        $authUser = \App\User::find(\Auth::id());
+        $authUser->items()->create(['name' => request('item'), 'product_id' => request('product_id')]);
 
         return redirect('product/'.request('product_id'));
     }

app/Http/Controllers/UserController.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use \App\User;
+use \App\Item;
+use \App\Product;
+use Illuminate\Http\Request;
+
+class UserController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        $this->validate($request, ['email' => 'required', 'item_id' => 'required']);
+        
+        $user = User::where('email', request('email'))->get();
+        
+        if (count($user) == 0) {
+            return back()->withErrors("The e-mail address is not registered yet.");
+        }
+        
+        $item = Item::findOrFail(request('item_id'));
+        if ($item->product->user_id == \Auth::id()) {
+            User::findOrFail($user[0]->id)->items()->attach(request('item_id'));
+            //$user->items()->attach(request('item_id'));
+        } else {
+            return back()->withErrors("You cannot add a user to a product that is not yourse.");
+        }
+        return back();
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}