DI Container
Rules
Existing definitions

Dependency Injection - Existing Definitions

Interfaces and Pre Defined Classes

There are a number of definitions that are already defined in the container, these are:

Class	Description
`wpdb`	The global WordPress database object
`PinkCrab\Perique\Interfaces\DI_Container`	The Perique DI Container
`PinkCrab\Perique\Services\View\View`	The Perique View Service
`PinkCrab\Perique\Application\App`	The Perique App Instance
`PinkCrab\Perique\Application\App_Config`	The Apps config

Any of these can be used and you will get a shared instance of the class.

class Foo{
    public function __construct(\wpdb $wpdb, App_Config $app_config){
        /** @var wpdb */
        $this->wpdb = $wpdb;
        /** @var App_Config */
        $this->app_config = $app_config;
    }
}

Injectables

There are a number of Interfaces which can be added to a class and a defined method will be called, with a shared instance passed in. These are:

Interface	Method	Description
`PinkCrab\Perique\Interfaces\Inject_DI_Container`	`set_di_container`	Injects the DI Container
`PinkCrab\Perique\Interfaces\Inject_App_Config`	`set_app_config`	Injects the App_Config Instance
`PinkCrab\Perique\Interfaces\Inject_Hook_Loader`	`set_hook_loader`	Injects the Hook_Loader Instance

We have a matching set of traits which can also be used, these defined a setter and property for the class.

Trait	Property	Description
`PinkCrab\Perique\Services\Container_Aware_Traits\Inject_DI_Container_Aware`	`$di_container`	DI Container Instance
`PinkCrab\Perique\Services\Container_Aware_Traits\Inject_App_Config_Aware`	`$app_config`	App_Config Instance
`PinkCrab\Perique\Services\Container_Aware_Traits\Inject_Hook_Loader_Aware`	`$hook_loader`	Hook_Loader Instance

class Foo implements Inject_App_Config, Inject_Hook_Loader{
    use Inject_App_Config_Aware, Inject_Hook_Loader_Aware;

    public function bar(){
        $this->hook_loader->add('init', function(){
            echo $this->app_config->additional('foo');
        });
    }
}