Route::post('order', 'OrderController#store')->name('order');
When I browse to the URL http://127.0.0.1:8000/order it shows the error:
The GET method is not supported for this route. Supported methods: POST.
Which is the correct.
But I want to redirect user to home page instead of showing this error.
First of all note that what you are trying to do seems like an anti-pattern for Laravel. Accessing a route with the wrong method should be denied!
I currently do not know about altering the default way of handling the wrong method error and I wouldn't advise to do that. But you can work around it:
Patching
Method 1
Keep your routes file clean but alter the original route line and add some lines to the beggining of the controller method
Route::match(['get', 'post'], 'order', [OrderController::class, 'store'])->name('order');
public function store(Request $request)
{
if ($request->isMethod('get')) {
return to_route('home');
}
// ...
Method 2
Keep your controller clean, but add a line to your routes file
Route::get('order', fn () => to_route('home'));
I have two controller file homecontroller and backendcontroller. What is the best way to create global function and access it from both files?
I found here Arian Acosta's answer helpful but I wonder if there is an easiest way. I would appreciate any suggestions.
Solution
One way to do this is to create a class and use its instance, this way you can not only access the object of the class within a controller, blade, or any other class as well.
AppHelper file
In you app folder create a folder named Helpers and within it create a file name AppHelper or any of your choice
<?php
namespace App\Helpers;
class AppHelper
{
public function bladeHelper($someValue)
{
return "increment $someValue";
}
public function startQueryLog()
{
\DB::enableQueryLog();
}
public function showQueries()
{
dd(\DB::getQueryLog());
}
public static function instance()
{
return new AppHelper();
}
}
Usage
In a controller
When in a controller you can call the various functions
public function index()
{
//some code
//need to debug query
\App\Helpers\AppHelper::instance()->startQueryLog();
//some code that executes queries
\App\Helpers\AppHelper::instance()->showQueries();
}
In a blade file
Say you were in a blade file, here is how you can call the app blade helper function
some html code
{{ \App\Helpers\AppHelper::instance()->bladeHelper($value) }}
and then some html code
Reduce the overhead of namespace (Optional)
You can also reduce the overhead of call the complete function namespace \App\Helpers by creating alias for the AppHelper class in config\app.php
'aliases' => [
....
'AppHelper' => App\Helpers\AppHelper::class
]
and in your controller or your blade file, you can directly call
\AppHelper::instance()->functioName();
Easy Solution:
Create a new Helpers folder in your app directory.
Create a php file named your_helper_function.php in that Helpers directory.
Add your function(s) inside your_helper_function.php
function your_function($parameters){
//function logic
}
function your_another_function($parameters){
//function logic
}
Add this file to the Files key of your composer.json like
"autoload": {
...
"files": [
"app/Helpers/your_helper_function.php"
]
...
}
Finally, regenerate composer autoload files. (Run this in your project directory)
composer dump-autoload
That's it! and now you can access your_function() or your_another_function() in any part of your Laravel project.
If you still have any confusion, check my blog post on how to do this:
How to Add a Global Function in Laravel Using Composer?
Updated:
Step 1
Add folder inside app folder
app->Helper
Step 2
add php Class inside Helper folder
Eg. Helper.php
Add namespace and class to the Helper.php
namespace App\Helper;
class Helper
{
}
Register this Helper.php into config/app.php file
'aliases' => [
....
'Helper' => App\Helper\Helper::class
]
Now, write all the functions inside Helper.php and it will be accessible everywhere.
How to access from Controller?
Step 1 - Add a namespace at top of the controller.
use App\Helper\Helper;
Step 2 - Call function - Assume there a getInformation() inside the Helper Class.
$information = Helper::getInformation()
In your Controller.php which extends BaseController, you can create a function like;
public function data($arr = false)
{
$data['foo'] = 'bar';
return array_merge($data,$arr);
}
And from any controller when you send a data to a view;
public function example()
{
$data['smthg'] = 'smthgelse';
return view('myView',$this->data($data));
}
The data in the the main controller can be accessed from all controllers and blades.
The Laravel Service Provider way
I've been using global function within Laravel for a while and I want to share how I do it. It's kind of a mix between 2 answers in this post : https://stackoverflow.com/a/44021966/5543999 and https://stackoverflow.com/a/44024328/5543999
This way will load a file within a ServiceProvider and register it within your Laravel app.
Where is the difference, the scope, it's always about the scope.
Composer //Autload whitin composer.json method
|
|--->Laravel App //My method
|
|--->Controller //Trait method
|--->Blade //Trait method
|--->Listener //Trait method
|--->...
This is a really simplist way to explain my point, all three methods will achieve the purpose of the "Global function". The Traits method will need you to declare use App\Helpers\Trait; or App\Helpers\Trait::function().
The composer and service provider are almost about the same. For me, they answer better to the question of what is a global function, because they don't require to declare them on each place you want to use them. You just use them function(). The main difference is how you prefer things.
How to
Create the functions file : App\Functions\GlobalFunctions.php
//App\Functions\GlobalFunctions.php
<?php
function first_function()
{
//function logic
}
function second_function()
{
//function logic
}
Create a ServiceProvider:
//Into the console
php artisan make:provider GlobalFunctionsServiceProvider
Open the new file App\Providers\GlobalFunctionsServiceProvider.php and edit the register method
//App\Providers\GlobalFunctionsServiceProvider.php
public function register()
{
require_once base_path().'/app/Functions/GlobalFunctions.php';
}
Register your provider into App\Config\App.php wihtin the providers
//App\Config\App.php
'providers' => [
/*
* Laravel Framework Service Providers...
*/
Illuminate\Auth\AuthServiceProvider::class,
...
Illuminate\Validation\ValidationServiceProvider::class,
Illuminate\View\ViewServiceProvider::class,
App\Providers\GlobalFunctionsServiceProvider::class, //Add your service provider
Run some artisan's commands
//Into the console
php artisan clear-compiled
php artisan config:cache
Use your new global functions
//Use your function anywhere within your Laravel app
first_function();
second_function();
Laravel uses namespaces by default. So you need to follow the method described in that answer to setup a helper file.
Though in your case you want to access a method in different controllers. For this there's a simpler way. Add a method to you base controller app/Http/Controllers/Controller.php and you can access them in every other controller since they extend it.
// in app/Http/Controllers/Controller.php
protected function dummy()
{
return 'dummy';
}
// in homecontroller
$this->dummy();
There are a few ways, depending on the exact functionality you're trying to add.
1) Create a function inside Controller.php, and make all other controller extend that controller. You could somewhat compair this to the master.blade.php
2) Create a trait, a trait can do a lot for you, and keeping ur controllers clean. I personally love to use traits as it will look clean, keep my Controller.php from being a mess with tons of different lines of code.
Creating a global function
create a Helpers.php file under a folder, let's name it 'core'.
core
|
-- Helpers.php
namespace Helpers; // define Helper scope
if(!function_exists('html')) {
function html($string) {
// run some code
return $str;
}
}
In your composer.json
"autoload": {
"psr-4": {
},
"files": [
"core/Helpers.php"
]
}
in the file that you want to use it
// the " use " statement is not needed, core/Helpers is loaded on every page
if(condition_is_true) {
echo Helpers\html($string);die();
}
Remove the namespace in Helpers.php if you want to call your function without the need to prefix namespace. However I advise to leave it there.
Credit: https://dev.to/kingsconsult/how-to-create-laravel-8-helpers-function-global-function-d8n
By using composer.json and put the function containing file(globalhelper.php) to the autoload > files section, then run
composer dump-autoload
You can access the function inside the file(globalhelper.php) without having to calling the class name, just like using default php function.
I just want to create a global function in laravel 5.1
I create a file in App/Helper.php
Helper.php
<?php
namespace App\Helpers;
class Helpers {
public function somethingOrOther()
{
return "Yes It is";
}
}
test.blade.php
Helpers::somethingOrOther();
But it is not working
Every Time I gon a fatel error like "Class 'App\Helpers' not found"
Please Help me
Since you are Helper method are statics you could add your helper class your config/app alias just like a Facade, like so:
'aliases' => [
//'Helpers'=> 'App\Helpers\Helpers', //for Laravel 5.0
'Helpers'=> App\Helpers\Helpers::class, //for Laravel 5.1
]
check this question
What is the best practice to create a custom helper function in php Laravel 5?
I know this has been asked before, and I've looked through every answer posted, but to no avail. Basically, I am trying to extend the Codeigniter form validation library on a CI2+ project, but every single time I get the error:
Fatal error: Call to a member function get_errors_array() on a non-object
Below is my code:
application/core/CB_Form_validation.php
class CB_Form_validation extends CI_Form_validation{
function __construct($rules = array()) {
parent::__construct($rules);
log_message('debug', "CB_Form_validaiton class initialized");
}
public function get_errors_array() {
return $this->_error_array;
}
}
and then in my ajax file I have the construct etc.
public function save(){
if($this->form_validation->run() == FALSE){
}
}
and inside that if statement I have tried the following:
echo $this->form_validation->get_errors_array();
echo $this->cb_form_validation->get_errors_array();
echo get_errors_array();
I have also tried placing the CB_Form_validation.php in application/libraries as well. Just as well, I have also tried this in my construct of my ajax controller
$this->load->library('CB_Form_validation');
$this->load->library('core/CB_Form_validation');
And I have set CB_ as my custom class prefix
Turns out that to fix this, you should do the following:
Move your custom form validation class to the application/libraries folder
You can keep the construct of your custom class how it is
Use $this->form_validation->method() to access the function you would like
As long as your loading the form_validation library, you don't need to perform $this->load->library('custom_class') because CI picks up on your custom prefix anyways
Hope this helps someone
I have created a component and a plugin in joomla 2.5 and there is a Helper file in the component which will have many useful functions and I plan to call one of its function which then calls another function in the helper by this code:
$this->getinformation();
and it gives me this error :
Fatal error: Call to undefined method
My questions are:
Why can't I call a function in a helper in Joomla?
How can I call a function inside helper class?
Is there any class structure which i missed in this code?
Helper files are typically called statically and not using $this
First create your helper file and add methods like this:
Class myHelper {
//This method can call other methods
public static function myMethod($var) {
//Call other method inside this class like this:
self::myOtherMethod($var);
}
//This method is called by myMethod()
public static function myOtherMethod($var) {
//Put some code here
}
}
Simply include the helper file like this in the documents that you would to use it:
require_once JPATH_COMPONENT.'/helpers/my_helper.php';
Then use it like this:
myHelper::myMethod($var);
or
myHelper::myOtherMethod($var);
You have to include the helper file and call the function using the classname
Add the following line in the plugin or component:
jimport( 'joomla.filesystem.folder' );
require_once JPATH_ROOT . '/components/com_xxxx/helper.php';
classname::functionname();
OR
If you are working on the same helper file means then call like this
classname::functionname();