how to get information from another controller in laravel - php

Question

I would like to save information using another controller to store it in the database.
in my situation, there are two controllers:
PostingsController
CommentsController
I could make the create function for comment using CommentsController, but I could not save post_id in the database from CommentsController.
I would like to save post_id using PostingsController because it has:
//if user did not fill the form properly
//error messages will popup
$this->validate($request, [
'comment' => 'required',
]);
//if user filled the form properly
//store the form
$comment = new Comment();
//for connecting both user and comment
$comment->user_id = Auth::id();
//to store comment
$comment->post_id = //I want to save post_id from PostingsController
//to store comment
$comment->comment = $request->input('comment');
//save all user input
$comment->save();
dd($comment);
I have set $comment = Posting::id();, but it could not work. the error is:
BadMethodCallException
Call to undefined method App\Models\Posting::id()
my PostingsController:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Posting;
use App\User;
use Illuminate\Support\Facades\Auth;
class PostingsController extends Controller
{
public function __construct()
{
$this->middleware('auth');
}
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
//this is how to get all posting, but this shows only all posting
// $postings = Posting::all();
// $postings->load('user');
//this is how to get all posting with created_at and descending order.
$postings = Posting::orderBy('created_at', 'desc')->get();
//should be function name
$postings->load('user');
return view('index')->with('postings', $postings);
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
return view('create');
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store(Request $request)
{
//if user did not fill the form properly
//error messages will popup
$this->validate($request, [
'posting' => 'required',
]);
//if user filled the form properly
//store the form
$posting = new Posting();
//for connecting both user and posting
$posting->user_id = Auth::id();
//to store posting
$posting->post = $request->input('posting');
//save all user input
$posting->save();
return redirect()->to('/home')->with('success', 'Posting created successfully!');
}
/**
* Display the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function show($id)
{
$posting = Posting::find($id);
return view('show')->with('posting', $posting);
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
//this is the way how to find posting of authenticated user
$posting = Posting::find($id);
return view('edit')->with('posting', $posting);
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param int $id
* #return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
//if user did not fill the form properly
//error messages will popup
$this->validate($request, [
'posting' => 'required',
]);
//if user filled the form properly
//store the form
$posting = Posting::find($id);
//to store posting
$posting->post = $request->input('posting');
//save all user input
$posting->save();
return redirect()->to('/home')->with('success', 'Posting edited successfully!');
}
/**
* Remove the specified resource from storage.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
$posting = Posting::find($id);
$posting->delete();
return redirect()->to('/home')->with('success', 'Posting deleted successfully');
}
}
my CommentsController:
<?php
namespace App\Http\Controllers;
use App\Models\Posting;
use App\Models\Comment;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
class CommentsController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
//
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
return view('comments.create');
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store(Request $request)
{
//if user did not fill the form properly
//error messages will popup
$this->validate($request, [
'comment' => 'required',
]);
//if user filled the form properly
//store the form
$comment = new Comment();
//for connecting both user and comment
$comment->user_id = Auth::id();
//to store comment
$comment->post_id = //problem
//to store comment
$comment->comment = $request->input('comment');
//save all user input
$comment->save();
dd($comment);
}
/**
* Display the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function show($id)
{
//
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
//
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param int $id
* #return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
//
}
/**
* Remove the specified resource from storage.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
//
}
}
create.comments in view:
#extends('layouts.app')
#section('content')
<div class="row justify-content-center">
<div class="col-md-8">
<div class="card">
<div class="card-header">
<div class="float-left m-2">Create new comment</div>
<span class=" ">Go back</span>
</div>
<div class="card-body">
#if (session('status'))
<div class="alert alert-success" role="alert">
{{ session('status') }}
</div>
#endif
<form method="post" action="/comments" >
#csrf
<input type="hidden" name="post_id" id="post_id" value="{{ $post->id }}" />
<div class="form-group">
<input type="text" class="form-control" name="comment" id="comment" placeholder="Comment what you think!">
</div>
<button type="submit" class="btn btn-primary float-right">Comment</button>
</form>
</div>
</div>
</div>
</div>
#endsection

Answer 1

Following the principle of Separation of Concerns you can move the logic into another module such as services.
I would suggest adding a new folder app/services and adding a service-class for each logic that needs to be implemented, eg. app/services/AddCommentToPostService.php.
This will also make testing of the system easier.

Answer 2

you can use app method to call controller method of another controller in laravel app('App\Http\Controllers\ControllerName')->functionName();