Error:
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laravel-ioc-binding-exception[/caption]
Context that caused this eror
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test controller[/caption]
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foo service with php primitive type[/caption]
When working with laravel 5, have you ever ask yourself that how** Laravel IOC** work, how **Laravel IOC** can handle concrete class binding instead of defining in somewhere (for laravel in Service providers).
Basically, if you inject a concrete class to another class, it will automatically bind to that class by laravel Container
Overview of Laravel Container (make, build, getDependencies, resolveClass (or nonClass))
laravel 5 container class: make function build function getDependencies function
By default, If you inject a concrete class to another class, its will automatically bind and resolve by Laravel container.
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Service Container Laravel The PHP Framework For Web Artisans[/caption]
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laravel ioc build class based on concrete class name[/caption]
but, in case in the constructor of some class you inject to a string or non-class parameter, how laravel 5 handle this https://github.com/laravel/framework/blob/5.2/src/Illuminate/Container/Container.php#L793
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laravle-container-getDependencies[/caption]
Its not acceptable that throw an error if a non-class cannot resolveable, but its not make sense to make a function name resolveNonClass just only throw an error (imo, should handle this ;)
$dependencies[] = $this->resolveNonClass($parameter);
There is many ways to deal with this is that writing an service provider to inject a string to another class like this (basically, a service provider abstract class contains $app instance, just bind a dependency manually into it). This is one way
<?php
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
use App\Services\FooService;
class FooProvider extends ServiceProvider
{
public function register()
{
$this->app->bind('App\Services\FooService', function($app){
return new FooService('a','b');
});
}
}
then register above service provider to config/app.php
'provider' => [
App\Providers\FooProvider::class,
]
its works!!!, other way to bypass this, is use Str provider class instead of built in string primitive php type.
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By the way, need to update Laravel Container class to deal with primitive type ??? in this function **resolveNonClass **https://github.com/laravel/framework/blob/5.2/src/Illuminate/Container/Container.php#L823
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laravel fw container resolveNonClass[/caption]
Reference: https://laravel.com/docs/5.1/container https://github.com/laravel/framework/blob/5.2/src/Illuminate/Container/Container.php http://culttt.com/2014/03/24/exploring-laravels-ioc-container/ http://php.net/manual/en/class.reflectionclass.php