Imbo module for Zend Framework 2

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3.0.0 2015-12-07 08:35 UTC


This module introduces an Imbo client service, and a view helper for creating Imbo image URLs in Zend Framework 2 applications.

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Add imbo/imbo-zf2-module to your composer.json file, and enable the module in your application.config.php file:

return array(
    'modules' => array(
        // ...
    // ...


The module has some configuration options that you will need to set, and all options are under the imboModule key in the configuration array.

Client configuration

To configure the ImboClient instance you need to specify one or more hosts, a user and a public/private key pair:

return array(
    'imboModule' => array(
        'imboClient' => array(
            'host' => 'http://imboserver',
            // or 'host' => array('http://imboserver1', 'http://imboserver2'),
            'user' => 'some-user',
            'publicKey' => 'somepublickey',
            'privateKey' => 'someprivatekey',
        // ...
    // ...

View helper transformation presets

The view helper supports presets specified in the configuration array if you want easier access to custom transformation chains:

return array(
    'imboModule' => array(
        'viewHelperPresets' => array(
            'graythumb' => function(ImboClient\Http\ImageUrl $url) {
                return $url->thumbnail()->desaturate();
        // ...
    // ...

See below on how to trigger these presets in your view scripts.


Injection via the initializer

The module ships with a controller initializer that looks for controllers that implement the Imbo\Service\ImboClientAwareInterface interface. Whenever such a controller is found, the setImboClient() method will be called with an instance of ImboClient\ImboClient, fetched from the service manager. The interface also defines a getImboClient() method that whould return the client instance.

The module also includes a trait that implements both these methods, so if you have a controller that needs access to an Imbo client, you will only need to add a couple of lines:

namespace Application\Controller;

use Zend\Mvc\Controller\AbstractActionController,

class IndexController extends AbstractActionController implements ImboClientAwareInterface {
    use ImboClientAware;

    public function indexAction() {
        $client = $this->getImboClient();

        // ...

All you need to do is have your controller implement the interface and use the trait, and Zend Framework will automatically inject the Imbo client for you.

Client service

The service is simply called ImboClient and can be fetched from the main service manager.

View helper

The view helper can be used in your view scripts like this:

<img src="<?= $this->imboUrl('imageid')->thumbnail() ?>">

For a complete list of available transformations, see the client documentation.

Transformation presets

Transformation presets specified in the configuration can be referred to in the view scripts by specifying a second parameter to the view helper:

<img src="<?= $this->imboUrl('imageid', 'preset') ?>">

See how to configure transformation presets in the configuration section above.