global variable for all controller and views

Question

In Laravel I have a table settings and i have fetched complete data from the table in the BaseController, as following

public function __construct() 
{
             


        

Answer 1

At first, a config file is appropriate for this kind of things but you may also use another approach, which is as given below (Laravel - 4):

// You can keep this in your filters.php file
App::before(function($request) {
    App::singleton('site_settings', function(){
        return Setting::all();
    });

    // If you use this line of code then it'll be available in any view
    // as $site_settings but you may also use app('site_settings') as well
    View::share('site_settings', app('site_settings'));
});

To get the same data in any controller you may use:

$site_settings = app('site_settings');

There are many ways, just use one or another, which one you prefer but I'm using the Container.

Answer 2

In Laravel 5.1 I needed a global variable populated with model data accessible in all views.

I followed a similar approach to ollieread's answer and was able to use my variable ($notifications) in any view.

My controller location: /app/Http/Controllers/Controller.php

<?php

namespace App\Http\Controllers;

use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;

use App\Models\Main as MainModel;
use View;

abstract class Controller extends BaseController
{
    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;

    public function __construct() {
        $oMainM = new MainModel;
        $notifications = $oMainM->get_notifications();
        View::share('notifications', $notifications);
    }
}

My model location: /app/Models/Main.php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use DB;

class Main extends Model
{
    public function get_notifications() {...

Answer 3

A global variable for using in controllers; you can set in AppServiceProvider like this :

public function boot()
{
    $company=DB::table('company')->where('id',1)->first();
    config(['yourconfig.company' => $company]);
}

usage

config('yourconfig.company');

Answer 4

There are two options:

1. Create a php class file inside app/libraries/YourClassFile.php

   a. Any function you create in it would be easily accessible in all the views and controllers.

   b. If it is a static function you can easily access it by the class name.

   c. Make sure you inclued "app/libraries" in autoload classmap in composer file.

2. In app/config/app.php create a variable and you can reference the same using

   Config::get('variable_name');

Hope this helps.

Edit 1:

Example for my 1st point:

// app/libraries/DefaultFunctions.php

class DefaultFunctions{

    public static function getSomeValue(){
     // Fetch the Site Settings object
     $site_settings = Setting::all();
     return $site_settings; 
    }
}

//composer.json

"autoload": {
        "classmap": [
..
..
..  
        "app/libraries" // add the libraries to access globaly.
        ]
    }

 //YourController.php

   $default_functions  = new DefaultFunctions();
    $default_functions->getSomeValue();