Laravel, Show(), Edit (), update functions not working - laravel

Question

In the code below methods show, edit update are not working.
<?php
namespace App\Http\Controllers\admins;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\contact;
use Image;
use Auth;
use Storage;
use File;
class ContactController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$contact = Contact::orderby('created_at', 'desc')->paginate(5);
//$agent=Agent::orderby('id','desc')->paginate(5);
return view('admin.messages.index', ['contacts' => $contact]);
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
return back()->with('success', 'Message can only be created by Users end.');
}
/** * Display the specified resource.
*
* #param \App\contact $contact
* #return \Illuminate\Http\Response
*/
public function show(contact $contact)
{
dd(['contact' => $contact]);
//return back()->with('success','Message Contents Are Already Shown');
}
/**
* Show the form for editing the specified resource.
*
* #param \App\contact $contact
* #return \Illuminate\Http\Response
*/
public function edit(contact $contact)
{
return view('admin.messages.edit', compact('contact'));
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param \App\contact $contact
* #return \Illuminate\Http\Response
*/
public function update(Request $request, contact $contact)
{
dd($request);
}
/**
* Remove the specified resource from storage.
*
* #param \App\contact $contact
* #return \Illuminate\Http\Response
*/
public function destroy(contact $contact)
{
return back()->with('success', 'Message history can not be Deleted. ');
}
}

Answer 1

Assuming you are using a slug in a route like contacts/{ slug }
public function show(contact $contact)
{
dd(['contact' => $contact]);
//return back()->with('success','Message Contents Are Already Shown');
}
Receives an id not a contact... you are initializing/declaring in the function parameter as contact thats why it somehow gets casted to a contact... but it's an id you should do something like:
public function show($id)
{
$contact = Contact::findOrFail($id);
dd(['contact' => $contact]);
//return back()->with('success','Message Contents Are Already Shown');
}