Laravel: Same Variable not working in different view - laravel

Question

If i use the variable tests everything works:
My Controller:
public function index()
{
$row = Test::count();
$tests = Test::latest()->paginate($row);
return view('tests.index',compact('tests'));
}
public function show(Test $test)
{
return view('tests.show', compact('test'));
}
My Index-View:
#foreach($tests as $test)
<div class="event">
<h4 class="eventtitle text-j4y-dark">{{ $test->body }}</h4>
Mehr lesen »
</div>
#endforeach
My Show-View:
<h4 class="eventtitle text-j4y-dark">{{ $test->body }}</h4>
but if i use the variable event the index page wokrs so it shows me all of my events but if i click on one event for more details it shows me nothing and nothing works but i don't know why? its the same code only different variables ?
I don't know what to do
My Controller:
public function index()
{
$row = Event::count();
$events = Event::latest()->paginate($row);
return view('tests.index',compact('events'));
}
public function show(Event $event)
{
return view('tests.show', compact('event'));
}
My Index-View:
#foreach ($events as $event)
<div class="event">
<h4 class="eventtitle text-j4y-dark">{{ $event->eventtitel }}</h4>
<div class="date"><i class="far fa-calendar-alt"></i>{{ date("d.m.Y", strtotime($event->datum)) }}</div>
<p class="eventtext" id="eventtext">{{ $event->eventbeschreibung }}</p>
Mehr lesen »
</div>
#endforeach
My Show-View:
<div class="event">
<h4 class="eventtitle">{{ $event->eventtite l}}</h4>
<div class="date"><i class="far fa-calendar-alt"></i>{{ date("d.m.Y", strtotime($event->datum)) }}</div>
<p class="eventtext" id="eventtext">{{ $event->eventbeschreibung }}</p>
</div>
if i use dd($test) it shows me this:
Test {#692 ▼
#fillable: array:1 [▶]
#connection: "mysql"
#table: null
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:4 [▶]
#original: array:4 [▶]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
+timestamps: true
#hidden: []
#visible: []
#guarded: array:1 [▶]
}
if i use dd($event) it shows me this:
Event {#660 ▼
#fillable: array:5 [▶]
+timestamps: false
#connection: null
#table: null
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: false
+wasRecentlyCreated: false
#attributes: []
#original: []
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
#hidden: []
#visible: []
#guarded: array:1 [▶]
}
if i use echo $event in my controller
it shows me this: []
if i use print_r($event)
it shows me this:
App\Event Object ( [fillable:protected] => Array ( [0] => firmenname [1] => eventtitel [2] => eventbeschreibung [3] => datum [4] => anhang ) [timestamps] => [connection:protected] => [table:protected] => [primaryKey:protected] => id [keyType:protected] => int [incrementing] => 1 [with:protected] => Array ( ) [withCount:protected] => Array ( ) [perPage:protected] => 15 [exists] => [wasRecentlyCreated] => [attributes:protected] => Array ( ) [original:protected] => Array ( ) [changes:protected] => Array ( ) [casts:protected] => Array ( ) [dates:protected] => Array ( ) [dateFormat:protected] => [appends:protected] => Array ( ) [dispatchesEvents:protected] => Array ( ) [observables:protected] => Array ( ) [relations:protected] => Array ( ) [touches:protected] => Array ( ) [hidden:protected] => Array ( ) [visible:protected] => Array ( ) [guarded:protected] => Array ( [0] => * ) )

Answer 1

Well, there are lot of issue with you code. First thing is the pagination.
$row = Event::count(); //This is basically counting all the events you have
$events = Event::latest()->paginate($row); // And here u telling to pageinit with all events in single page.
I personally do not think it is the right way. If I had to do I would do this way
$events = Event::orderBy('created_at','desc')->get(); //This will allthe even in single page with the latest one.
If you only need all the events and sorting is not required I would do like this
$events = Event::all(); //This is give all the events
Coming back to your question.
A variable defined inside a controller method stays inside that method and the view that method is rendering. It does not pass another blade until and unless you are declaring it globally in the provider.
For your case, i would do something like this
Route
Route::get('events',['as'=>'events','uses'=>'ControllerName#index']);
Route::get('event/{id}',['as'=>'event.detail','uses'=>'ControllerName#show']);
Controller
public function index()
{
$data['events'] = Event::orderBy('created_at','desc')->get();
return view('tests.index',$data);
}
public function show($id)
{
$data['eventDetail'] = Event::where('id',$id)->first();
return view('tests.show',$data);
}
Index view
#foreach ($events as $event)
<div class="event">
<h4 class="eventtitle text-j4y-dark">{{ $event->eventtitel }}</h4>
<<CODE HERE MORE CODE >>
Mehr lesen »
</div>
#endforeach
Event detail view
<div class="event">
<h4 class="eventtitle">{{ $eventDetail->eventtite l}}</h4>
<div class="date"><i class="far fa-calendar-alt"></i>{{ date("d.m.Y", strtotime($eventDetail->datum)) }}</div>
<p class="eventtext" id="eventtext">{{ $eventDetail->eventbeschreibung }}</p>
</div>
Hope this helps