Laravel 5.1 passing data to partial

Question

I have a controller where I get the unread comments on the projects of the logged in user. Now my problem is I need this data in my nav partial to show it on all my views. But unfortunately this does not work.

Here's my route:

Route::get('/', 'KlantController@getUnreads');

Here's my function in my KlantController

public function getUnreads(){
        $uid = Auth::user()->id;
        $projects = User::find($uid)->projects;

        //comments
        if (!empty($projects)) {
            foreach ($projects as $project) {     
                $comments_collection[] = $project->comments;
            }
        }

        if (!empty($comments_collection)) {
            $comments = array_collapse($comments_collection);
            $unreads = collect($comments)->where('unread', "1")->count();
        }
        return view('partials.nav', $unreads);
    }

And here's where I use the data in my partial.

@if($unreads > 0)
  <span class="label label-danger">{{ $unreads }}</span>
@endif

Annoying enough this gives me multiple times the following error:

Undefined variable: unreads (View: /var/www/resources/views/partials/nav.blade.php)

Anyone has any idea how I can fix this? Any help is appreciated!

Many thanks in advance :)

Burak Ozdemir · Accepted Answer · 2016-06-14 13:10:57Z

1

The data you are passing should be an array with key/value pairs.

From the Laravel documentation:

When passing information in this manner, $data should be an array with key/value pairs. Inside your view, you can then access each value using its corresponding key

In your case, you can just use the compact function.

return view('partials.nav', compact('unreads'));

answered Jun 14, 2016 at 13:10

Burak Ozdemir

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1 Comment

Burak Ozdemir Over a year ago

define your function as public function getUnreads($unreads=0). Because if there are not any comments, unreads variable is undefined.

Matija · Accepted Answer · 2019-03-15 15:56:46Z

I am working currently for one client in Laravel 5.1 (YES, I know please don't ask).

Anyways to help somebody perhaps.

In the controller:

public function blogIndex()
{
    $posts = Blog::orderBy('date')
        ->where('status', 'Published')
        ->whereDate('date', '<', Carbon::now())
        ->paginate(10);

    return view('pages.blog.index', compact('posts'));
}

In one of the views, we have partial.

@include('partials.blog-categories-nav', ['posts' => $posts]);

In that partial resources/views/partials/blog-categories-nav.blade.php

{{ dd($posts) }}

The output clearly you get:

Perhaps, just perhaps you guys forgot to include {{ }}, curly brackets or perhaps $ in $var.

If for some reason it is NOT still working, you can always use {{ dd(get_defined_vars()) }} in views.

Which will output all of your variables in for us well known die and dump dd format.

Cheers hope this will help someone;

I wish you happy coding.

Have a nice day my fellow developers.

Santiago Mendoza Ramirez · Accepted Answer · 2016-06-14 13:31:43Z

0

return view('partials.nav')->with(['unreads' => $unreads]);

And in your controller, you can start it this way:

$uid = Auth::user()->id;
$projects = User::find($uid)->projects;
$unreads = 0

So, if theres no comments, the $unreads vars will exists in your view anyway.

answered Jun 14, 2016 at 13:31

Santiago Mendoza Ramirez

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Comments

Everton Mendonça · Accepted Answer · 2016-06-14 13:33:08Z

0

Try this:

In your function:

return view('partials.nav', ['unreads' => $unreads]);

In your view:

@if(count($unreads) > 0)
  @foreach ($unreads as $unread)
     <span class="label label-danger">{{ $unread }}</span>
  @endforeach
@endif

edited Jun 14, 2016 at 13:33

answered Jun 14, 2016 at 13:10

Everton Mendonça

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5 Comments

Cruzito Over a year ago

This doesn't work unfortunately, I still get the same error :(

Cruzito Over a year ago

Yep, I do. I get it 3 times actually. I think it is because I have 3 comments in my database

Everton Mendonça Over a year ago

Hum.... In your if, use the count function @if(count($unreads) > 0). And I think that maybe you should use a @foreach because your $unreads variable is an array.

Cruzito Over a year ago

can't be an array it's just a ->count()

Cruzito Over a year ago

Nope still don't work :'( same error. I think something is wrong with my route maybe?

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