PrestaShop save HTML in CustomerMessage->message - prestashop

Question

I'm making a customization in a PrestaShop 1.6.0.14 where I need to offer an HTML editor when the employee answers to a customer thread. This part I achieved and the I'm getting to send the HTML in the e-mail message.
My problem is to show in the history, I need to show the HTML in the history (sometimes employees send links etc..). To achieve that I need to be able to save HTML in the message field of the customer_message table. When I go to the definition of the ObjectModel (classes/CustomerMessage.php) I see this:
'message' => array('type' => self::TYPE_STRING, 'validate' => 'isCleanHtml', 'required' => true, 'size' => 65000),
Which is cleaning the HMTL. So I created a new file at override/classes/CustomerMessage.php with this content:
class CustomerMessage extends CustomerMessageCore
{
public function __construct($id = null) {
self::$definition['fields']['message'] = array('type' => self::TYPE_STRING, 'validate' => 'isAnything', 'required' => true, 'size' => 65000);
parent::__construct($id);
}
}
This I believe that would override the property allowing me to save HTML in this field. But it doesn't work. Am I doing it the wrong way? If so, how can I redefine this field?
Thanks for any help

Answer 1

you have to use this settings:
self::$definition['fields']['message'] = array('type' => self::TYPE_HTML, 'validate' => 'isCleanHtml', 'required' => true, 'size' => 65000);
the type should be TYPE_HTML, and don't change validation isCleanHtml because it check about parts of html code that you don't want (like js, script, iframe, etc)
Let me know :)
PS: Every time that we make an override, delete the class_index.php that is stored in cache folder