What's dependency injection(DI)?
================================
Just look at the article and watch that awesome video:
http://blog.ircmaxell.com/2013/01/dependency-injection-programming-with.html
How do i register items(services)?
==================================
If the class does not have any deps- just skip this step!!!
First of all you have to register all dependencies, but keep in mind that:
class App
{
// you can use this trait and implement getInjectables()
// that returns associative array with named params that
// could not be skipped or added with defined default values
use Pyha\DI\Injectable;
public function getInjectables()
{
return [
'stringHere' => "hello world!"
];
}
/**
* @param string $stringHere
*/
public function __construct(AnyClassHere $thing, $stringHere)
{
}
}
class Foo
{
public function __construct(App $app)
{
}
}
class Bar extends Foo { }
// i would like to get it via DI Factory
class WeWannaGet
{
public function __construct(Bar $bar)
{
}
}
// in order to get this working we need... //
// 1. register only top dependency
Pyha\DI\Factory::getInstance()->register(
new App(new AnyClassHere(), 'string here')
);
// or
Pyha\DI\Factory::getInstance()->register(
Pyha\DI\Factory::getInstance()->get('App')
);
// or (if app does not use injectable trait or do not get named param via getInjectables() method)
Pyha\DI\Factory::getInstance()->register(
Pyha\DI\Factory::getInstance()->get('App', ['stringHere' => "hello world!"])
);
// that u can use
Pyha\DI\Factory::getInstance()->get('WeWannaGet'); // to get instance only once, just what an singleton does
Pyha\DI\Factory::getInstance()->create('WeWannaGet'); // to create new instance each time
To register aliases use addAlias() Factory method.
NOTE: if as a service parameter to the register method is provided an object
by default are registered several service aliases. This are:
- All Interfaces names implemented
- All parent classes from extension tree
- All Traits used
If you do not wannt to register this aliases, take a look at the method prototype:
public function register($name,
$service,
$registerSelfAsAlias = true,
$registerInterfacesAsAliases = true,
$registerParentsAsAliases = true);
Services ca be objects, closures, string(classes names)
Loading Library
===============
If you are not using Composer you may add to autoloader the lib path or even include the files manualy
Installing via Composer
=======================
To install it via composer just use following command:
$ composer.phar install
|
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