Getting the thumbnails to appear in the facebook sharer from a SilverStripe content field

Posted by Gav on 9 August 2011 | 0 Comments

Tags: Facebook, SilverStripe

I recently worked on a project that uses SilverStripe and uses the facebook sharer to share content and I noticed that the images from the $Content field are not converted into thumbnails. This is my solution for the problem.

When the sharer scapes your page, it does not parse images such as 

<img src="assets/Uploads/_resampled/resizedimage400579-image006.jpg">

which is what SilverStripe renders a content field as.

The solution is to add the following code to your mysite/code/Page.php file.

class Page_Controller extends ContentController {

	...

	public function init() {
		parent::init();
		
		$this->Content = str_replace('src="assets/', sprintf('src="%sassets/', $this->baseHref()), $this->Content);


	}

	...
}

What the code does is it adds the BaseHref to the front of the images. This allows the facebook sharer to scrape them.