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/*******************************************************
* about
*******************************************************/

/*

This UDT can be used to automatically post a Twitter message when a news article is added.
The functionality is based on the Twitter and News module.

- First you need to install and setup the News and Twitter module.
- After you need to create a UDT with this code, for example you can call it: 'news_twitter_update_status'
- At last you need to connect this UDT to the 'NewsArticleAdded' event.
   This can be done via Extensions -> Event Manager.

[s]! Currently this UDT only works when pretty urls are enabled.
It seems that the bit.ly url shortner ($twitter->shortenUrls($link)) has some problems with unfriendly urls.
Querystring parameters &var=1 are converted to &=1 which will break the link.[/s]

==
update: 16 Dec 2011
==

- This UDT is now compatible with cmsms 1.10
- Works with and without pretty urls bit.ly problem seems solved
- Added the ability to shortenurl's 
- Added support for the news_url field, if you use these it's best to turnshortenurl's off

config:

- specify: $detailpage (page_id) of the cgblog detail view.
- specify: $shortenurl (true|false) will use the bit.ly url shortner or not.

*/

/*******************************************************
* globals/objects
*******************************************************/

$modops = cmsms()->GetModuleOperations();
$twitter = $modops->get_module_instance('Twitter');
$cgblog = $modops->get_module_instance('CGBlog');

/*******************************************************
* config
*******************************************************/

/* debug (bool) */
$debug = false;

/* custom (string) */
$detailpage = '15';

/* shortenurl (bool) */
$shortenurl = false;

/*******************************************************
* variables
*******************************************************/

/* CGBlog article related  (string) */
$cgblog_id = $params['cgblog_id'];
$title = $params['title'];

/* added to link (array) */
$link['articleid']  = $params['cgblog_id'];

/*******************************************************
* program
*******************************************************/

$aliased_title = munge_string_to_url($title);
$cgblog_url = fetch_cgblog_url($cgblog_id);

if ($cgblog_url != '') {
   $prettyurl = $cgblog_url; 
} else {
   $prettyurl = 'logboek/' . $cgblog_id.'/'.$detailpage."/$aliased_title";
}

$link = $cgblog->CreateLink($cgblog_id, 'detail', $detailpage, '', $link,'', true, false, '', true, $prettyurl);

if ($shortenurl) {
   $shortlink = $twitter->shortenUrls($link);
   $message = $title. ' '. $shortlink;
} else {
   $message = $title. ' '. $link;   
}
   
if ($debug) {
   print "<pre>twitter: $message status: $params[status] link: $link title: $title prettyurl: $prettyurl \n</pre>";
} else {
   if ($params[status] == 'published') {
      $twitter->updateStatus($message, false);
   }
}

/*******************************************************
* subroutines
*******************************************************/

/** 
*  fetch the $cgblog_url by $cgblog_id 
*
* @param string $cgblog_id 
* @return string $cgblog_url
*
*/

function fetch_cgblog_url($cgblog_id) {
   
   $db = cmsms()->GetDb();

   $query = "SELECT url 
                  FROM ". cms_db_prefix(). "module_cgblog 
                  WHERE cgblog_id = ?";

   $cgblog_url = $db->GetOne($query, array($cgblog_id));

   return $cgblog_url;

}