silverstripe-comments/docs/en/Configuration.md
2013-03-06 16:08:39 +07:00

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# Configuration
## Overview
The module provides a number of built in configuration settings below are the default settings
// mysite/_config.php
Commenting::add('Foo', array(
'require_login' => false,
'required_permission' => false,
'use_ajax_commenting' => true,
'show_comments_when_disabled' => false,
'order_comments_by' => "\"Created\" DESC",
'comments_per_page' => 10,
'comments_holder_id' => "comments-holder",
'comment_permalink_prefix' => "comment-",
'require_moderation' => false,
'html_allowed' => false, // allow for sanitized HTML in comments
'html_allowed_elements' => array('a', 'img', 'i', 'b'),
'use_preview' => false, // preview formatted comment (when allowing HTML),
'use_gravatar' => false,
'gravatar_size' => 80
);
If you want to customize any of the configuration options after you have added the extension (or
on the built-in SiteTree commenting) use `set_config_value`
// mysite/_config.php - Sets require_login to true for all pages
Commenting::set_config_value('SiteTree', 'require_login', true);
// mysite/_config.php - Returns the setting
Commenting::get_config_value('SiteTree', 'require_login');
## HTML Comments
Comments can be configured to contain a restricted set of HTML tags
through the `html_allowed` and `html_allowed_elements` settings.
Raw HTML is hardly user friendly, but combined with a rich-text editor
of your own choosing it can allow rich comment formatting.
In order to use this feature, you need to install the
[HTMLPurifier](http://htmlpurifier.org/) library.
The easiest way to do this is through [Composer](http://getcomposer.org).
{
"require": {"ezyang/htmlpurifier": "4.*"}
}
**Important**: Rendering user-provided HTML on your website always risks
exposing your users to cross-site scripting (XSS) attacks, if the HTML
isn't properly sanitized. Don't allow tags like `<script>` or arbitrary attributes.
## Gravatars
Gravatars can be turned on by adding this to your mysite/_config.php file
Commenting::set_config_value('SiteTree', 'use_gravatar', true);
The default size is 80 pixels, as per the gravatar site if the 's' parameter is omitted. To change this add the following (again to mysite/_config.php):
Commenting::set_config_value('SiteTree', 'gravatar_size', 40);