Dependency Component

DependencyInjection manages your services via a robust and flexible Dependency Injection Container.

Here is a simple example that shows how to register services and parameters:

from pymfony.component.dependency import ContainerBuilder;
from pymfony.component.dependency.definition import Reference;

sc = ContainerBuilder();
sc.register('foo', '%foo.class%');
sc.addArgument(Reference('bar'));
sc.setParameter('foo.class', 'Foo');

sc.get('foo');

Method Calls (Setter Injection):

sc = ContainerBuilder();

sc.register('bar', '%bar.class%');
sc.addMethodCall('setFoo', [Reference('foo')]);
sc.setParameter('bar.class', 'Bar');

sc.get('bar');

Factory Class:

If your service is retrieved by calling a static method:

sc = ContainerBuilder();

sc.register('bar', '%bar.class%');
sc.setFactoryClass('%bar.class%');
sc.setFactoryMethod('getInstance');
sc.addArgument('Aarrg!!!');

sc.setParameter('bar.class', 'Bar');

sc.get('bar');

File Include:

For some services, especially those that are difficult or impossible to autoload, you may need the container to include a file before instantiating your class.

sc = ContainerBuilder();

sc.register('bar', '%bar.class%');
sc.setFile('/path/to/file');
sc.addArgument('Aarrg!!!');

sc.setParameter('bar.class', 'Bar');

sc.get('bar');

Resources

You can run the unit tests with the following command:

$ cd path/to/pymfony/component/dependency/
$ curl -O https://raw.github.com/pypa/virtualenv/master/virtualenv.py
$ python virtualenv.py vendor
$ vendor/bin/pip install -r requirements.txt -e . nose
$ vendor/bin/nosetests