Laravel index and store views are in the same page approach - laravel

Question

I have a page which views posts as well as add posts.
In my controller, I have two methods which return to the same page:
public function index () {
return view('posts.index', [
'posts' => Post::all()
]);
}
and
public function store (Request $request) {
$validator = validate($request);
if ($validator->fails()) {
return view('posts.index', [
'message' => $validator->messages(),
'status' => '400'
]);
}
$post = new Post;
$post->title = $request->title;
$post->body = $request->body;
$post->user_id = 1;
$post->save();
return view('posts.index', [
'message' => 'Successfully published post!',
'status' => '200'
]);
}
Now when storing new post, the index view loses the posts data from the index method. Does it mean that in my every update, I should include posts variable?
public function store (Request $request) {
$validator = validate($request);
if ($validator->fails()) {
return view('posts.index', [
'message' => $validator->messages(),
'status' => '400',
'posts' => Post::all()
]);
}
$post = new Post;
$post->title = $request->title;
$post->body = $request->body;
$post->user_id = 1;
$post->save();
return view('posts.index', [
'message' => 'Successfully published post!',
'status' => '200',
'posts' => Post::all()
]);
}
I am new to Laravel by the way.

Answer 1

Usually, the store() (and update() and delete()) methods of a Controller don't need a view. Instead of showing a view, redirect to a different route when storing/updating/deleting was successful.
Replace
return view('posts.index', [
'message' => 'Successfully published post!',
'status' => '200'
]);
with
return redirect()
->route(NAMEOFYOURINDEXROUTE)
->with('message', 'Successfully published post!');
where NAMEOFYOURINDEXROUTE is the name of the route you want to redirect to. (This could be a dashboard or the list/index of products etc. - you decide)
More on redirecting: https://laravel.com/docs/master/redirects
and redirecting with flash messages: https://laravel.com/docs/master/redirects#redirecting-with-flashed-session-data
Edit:
As #user3532758 pointed out, here's a link worth mentioning: https://en.wikipedia.org/wiki/Post/Redirect/Get (Basically, redirecting to a different route prevents accidental re-submission of the data when refreshing the page in the browser)