updated show and update methods with exception handling, added flash error message to example view

Author: cmgmyr

src/Cmgmyr/Messenger/examples/MessagesController.php

@@ -4,7 +4,12 @@
 use Cmgmyr\Messenger\Models\Thread;
 use Cmgmyr\Messenger\Models\Message;
 use Cmgmyr\Messenger\Models\Participant;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Input;
+use Illuminate\Support\Facades\Redirect;
+use Illuminate\Support\Facades\Session;
+use Illuminate\Support\Facades\View;
 
 class MessagesController extends BaseController
 {
@@ -47,7 +52,13 @@ public function index()
      */
     public function show($id)
     {
-        $thread = Thread::findOrFail($id);
+        try {
+            $thread = Thread::findOrFail($id);
+        } catch (ModelNotFoundException $e) {
+            Session::flash('error_message', 'The thread with ID: ' . $id . ' was not found.');
+
+            return Redirect::to('messages');
+        }
 
         // show current user in list if not a current participant
         // $users = User::whereNotIn('id', $thread->participantsUserIds())->get();
@@ -122,7 +133,13 @@ public function store()
      */
     public function update($id)
     {
-        $thread = Thread::findOrFail($id);
+        try {
+            $thread = Thread::findOrFail($id);
+        } catch (ModelNotFoundException $e) {
+            Session::flash('error_message', 'The thread with ID: ' . $id . ' was not found.');
+
+            return Redirect::to('messages');
+        }
 
         $thread->activateAllParticipants();
 

src/Cmgmyr/Messenger/examples/views/index.blade.php

@@ -1,6 +1,11 @@
 @extends('layouts.master')
 
 @section('content')
+    @if (Session::has('error_message'))
+        <div class="alert alert-danger" role="alert">
+            {{Session::get('error_message')}}
+        </div>
+    @endif
     @if($threads->count() > 0)
         @foreach($threads as $thread)
         <?php $class = $thread->isUnread($currentUserId) ? 'alert-info' : ''; ?>