ImageCache for Yii2

Like the Image module in Drupal, this extension will resize your images on demand :-). If a thumb doesn't exist, the web server's rewrite rules will pass the request to Yii which in turn hands it off to ImageCache to dynamically generate the file.

WIP...

Features

• [x] image resize on demand
• [x] text watermark
• [ ] image watermark

Installation

The preferred way to install this helper is through composer.

Either run

php composer.phar require "iutbay/yii2-imagecache" "*"

or add

"iutbay/yii2-imagecache" : "*"

to the require section of your application's composer.json file.

Configuration

You should :

• Add ThumbAction in one of your controller.
• Modify your application configuration :
  • add imageCache component,
  • add url rule to handle request to missing thumbs.

Add ThumbAction

You need to add ThumbAction in one of your controller so that imageCache can handle requests to missing thumbs and create them on demand. You could use site controller :

class SiteController extends Controller
{
  ...
  public function actions()
  {
      return [
        ...
        'thumb' => 'iutbay\yii2imagecache\ThumbAction',
        ...
      ];
  }
  ...
}

imageCache component config

You should add imageCache component in your application configuration :

$config = [
    'components' => [
      ...
      'imageCache' => [
        'class' => 'iutbay\yii2imagecache\ImageCache',
        'sourcePath' => '@app/web/images',
        'sourceUrl' => '@web/images',
        //'thumbsPath' => '@app/web/thumbs',
        //'thumbsUrl' => '@web/thumbs',
        //'sizes' => [
        //    'thumb' => [150, 150],
        //    'medium' => [300, 300],
        //    'large' => [600, 600],
        //],
      ],
      ...
    ],
];

urlManager config

You should enable pretty urls :

http://www.yiiframework.com/doc-2.0/guide-start-installation.html#configuring-web-servers

You should modify your urlManager configuration :

$config = [
    'components' => [
      ...
      'urlManager' => [
        'enablePrettyUrl' => true,
        'showScriptName' => false,
        'rules' => [
          ...
          'thumbs/<path:.*>' => 'site/thumb',
          ...
        ],
      ],
      ...
    ],
];

How to use

<?= Yii::$app->imageCache->thumb('@web/images/2014/test.jpg') ?>
// <img src="/your-app/thumbs/2014/test_thumb.jpg" alt="">

<?= Yii::$app->imageCache->thumb('@web/images/2014/test.jpg', 'medium') ?>
// <img src="/your-app/thumbs/2014/test_medium.jpg" alt="">

<?= Yii::$app->imageCache->thumb('@web/images/2014/test.jpg', 'medium', ['class'=>'img']) ?>
// <img src="/your-app/thumbs/2014/test_medium.jpg" alt="" class="img">