Laravel 5.5 : How to define global variable that can be used in all controllers ?
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Laravel 5.5 : How to define global variable that can be used in all controllers ?
Hello Developers & Coders ,
My question is How to define a global variable , that can be used in
all controllers in Laravel ?
I have defined one variable $company in AppServiceProviders's boot method - that im using in all blade views , but I can not use it in controllers file , it gives error , undefined variable $company
$company
undefined variable $company
class AppServiceProvider extends ServiceProvider
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
View::share('key', 'value');
Schema::defaultStringLength(191);
$company=DB::table('company')->where('id',1)->first();
View::share('company',$company);
/**
* Register any application services.
*
* @return void
*/
public function register()
//
please guide me , thanks for your efforts & time :)
@ErkanÖzkök , as you see in the post , I am using query builder to fetch record from database , the variable is dynamic not static.
– Saurabh Mistry
Aug 11 at 10:45
3 Answers
3
set configuration variables at runtime
class AppServiceProvider extends ServiceProvider
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
View::share('key', 'value');
Schema::defaultStringLength(191);
$company=DB::table('company')->where('id',1)->first();
// View::share('company',$company);
config(['yourconfig.company' => $company]);
usage:
config('yourconfig.company');
thanks for your efforts , your answer is very helpful to me , so i m mark your answer as accepted and upvoted , :)
– Saurabh Mistry
Aug 11 at 12:29
Set a variable to session
Session::set('company', $company);
To get the variable when you use
$company = Session::get('company');
Thanks for your answer , but i dont want to use session , please suggest any other way , if it is possile :)
– Saurabh Mistry
Aug 11 at 11:56
Okay, so unless you want to keep it in your Session, which I absolutely do not recommend, Cache which does not seem to be a best idea either or set it through the Config system inside of a Framework (which already are 3 different solutions suited for different matters) I would start from thinking what that variable will contain, if that's something that's just a Collection of Company model then you can basically use it in any controller by just using Laravel Eloquent methods.
What I recommend is either $company = Company::where('foo', 'bar')->first();, or just some data provider that would return all the information that you need in the form of Laravel Collection.
$company = Company::where('foo', 'bar')->first();
tl;dr
#recommended way that's reusable throughout whole app
Company::find(1); // instead of DB::table('company')->where('id', 1)->get();
Hope that helps.
Company::find(1); and DB::table('company')->where('id', 1)->get(); . both are same , one is eloquent and one is query builer way , use any way but I want a glabally variable across all controllers– Saurabh Mistry
Aug 11 at 11:53
Company::find(1);
DB::table('company')->where('id', 1)->get();
I'm not sure if using global variable is particularly great practice, and config should be used for configurational variables (thus the name) therefore I still think that unless you want to keep this kind of data inside of Redis, solution I proposed is best one for given problem.
– Kuba Biały
Aug 12 at 10:52
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if it is static you can use .env file or config file that you create. But if it is dynamic variable you can use session or cache to use it from everywhere.
– Erkan Özkök
Aug 11 at 10:35