General

You have to create Joomla plugin of mint group. Here is XML

<?xml version="1.0" encoding="utf-8"?>
<extension version="3.0" type="plugin" group="mint" method="upgrade">
	<name>Cobalt - Plugin - My Plugin</name>
	<author>Author</author>
	<creationDate>February 17 2009</creationDate>
	<copyright>Author</copyright>
	<license>GNU/GPL http://www.gnu.org/copyleft/gpl.html</license>
	<authorEmail>email@domain.com</authorEmail>
	<authorUrl>http://www.site.com</authorUrl>
	<version>8.0</version>
	<description>
	<![CDATA[ This is description]]>
	</description>
	<files>
		<filename plugin="myplugin">myplugin.php</filename>
	</files>
</extension>

<version> have to start with 8.* for Cobalt 8 and with 7.* for Cobalt 7.

You create plugin as you create any other Joomla plugin.

Here is a sample php file

<?php
defined('_JEXEC') or die('Restricted access');
require_once JPATH_ROOT . '/components/com_cobalt/api.php';
class plgMintPluginname extends JPlugin
{
}

onAfterArticleSaved

onAfterArticleSaved event is triggered article has been saved successfully.

Here is a sample

<?php
defined('_JEXEC') or die('Restricted access');

require_once JPATH_ROOT . '/components/com_cobalt/api.php';

class plgMintPluginname extends JPlugin
{
	public function onAfterArticleSaved($isnew, $record, $fields, $section, $type)
	{
		if($isnew)
		{
			// Expire in 30 days
			$record->extime = date('Y-m-d h:i:s', time() + (86400 * 30));
			$record->store();
		}

		foreach($fields AS $field)
		{
			if($field->type == 'myfield')
			{
				$value = $field->value;
			}
		}
	}
}

• $isnew - boolean - If this is new article or we edit article.
• $record - JTable - JTable object.
• $fields - array - Array of fields objects. If you have custom field you can even trigger custom field method.
• $section - object - Section object. Includes $section->params where you can get all section parameters.
• $type - object - Content Type object. Includes $type->params where you can get all type parameters.

onBeforeArticleSaved

onBeforeArticleSaved event is triggered before article save process is triggered.

Here is a sample

<?php
defined('_JEXEC') or die('Restricted access');

require_once JPATH_ROOT . '/components/com_cobalt/api.php';

class plgMintPluginname extends JPlugin
{
	public function onBeforeArticleSaved($isnew, $record, $section, $type)
	{
	}
}

• $isnew - boolean - If this is new article or we edit article.
• $record - array - Array of submitted form data.
• $section - object - Section object. Includes $section->params where you can get all section parameters.
• $type - object - Content Type object. Includes $type->params where you can get all type parameters.

onActivity

onActivity event is triggered on every action in cobalt.

Here is a sample

<?php
defined('_JEXEC') or die('Restricted access');

require_once JPATH_ROOT . '/components/com_cobalt/api.php';

class plgMintPluginname extends JPlugin
{
	public function onActivity($actor, $target, $options, $record)
	{
		if($options['type'] == CEventsHelper::_RECORD_NEW)
		{
			// do actions...
		}
	}
}

• $actor - int - user who make an action
• $target - int - user who’s object affected.
• $options - array - event options. By this parameter we can get what was the event type. See table bellow.
• $record - Article object. Contain article this event is related to.

For example someone rates an article. The one who rates is an $actor, article author is the $target and article is $record.

List of $options parameters. For example $options['type'].

List of all event type.

Record events

• CEventsHelper::_RECORD_NEW
• CEventsHelper::_RECORD_VIEW
• CEventsHelper::_RECORD_EXPIRED
• CEventsHelper::_RECORD_FEATURED_EXPIRED
• CEventsHelper::_RECORD_TAGGED
• CEventsHelper::_RECORD_BOOKMARKED
• CEventsHelper::_RECORD_RATED
• CEventsHelper::_RECORD_APPROVED
• CEventsHelper::_RECORD_UNPUBLISHED
• CEventsHelper::_RECORD_FEATURED
• CEventsHelper::_RECORD_EXTENDED
• CEventsHelper::_RECORD_DELETED
• CEventsHelper::_RECORD_EDITED
• CEventsHelper::_RECORD_REPOSTED
• CEventsHelper::_RECORD_POSTED

Comment events

• CEventsHelper::_COMMENT_NEW
• CEventsHelper::_COMMENT_RATED
• CEventsHelper::_COMMENT_DELETED
• CEventsHelper::_COMMENT_APPROVED
• CEventsHelper::_COMMENT_REPLY
• CEventsHelper::_COMMENT_UNPUBLISHED
• CEventsHelper::_COMMENT_EDITED

Field events

• CEventsHelper::_FIELDS_STATUS_CHANGED
• CEventsHelper::_FIELDS_PARENT_NEW
• CEventsHelper::_FIELDS_CHILD_NEW
• CEventsHelper::_FIELDS_PARENT_ATTACHED
• CEventsHelper::_FIELDS_CHILD_ATTACHED
• CEventsHelper::_FIELDS_PAY_STATUS_CHANGE
• CEventsHelper::_FIELDS_PAY_NEW_SALE
• CEventsHelper::_FIELDS_PAY_NEW_SALE_MANUAL