[geeklog-devtalk] mode = XML for stories

[Gavin Mahan]

I added a feature to article.php that gives you a new mode (just like  
print) that will display the story in XML format. It uses a new  
template file so you can customize the xml feed to different formats  
(like RSS/RDF). It seems like it would handy for others to use. I did  
it cause I needed to display stories in a flash site (I know flash is  
evil but I have to pay the rent, spare me the rant). I added this code  
right below the else if mode == print statement. I think it might be a  
handy addition to Geeklog.

Because I used this for a specific purpose this doesn't result in a  
valid rss feed I don't believe (I never really checked it) but if  
anyone wanted to add it to the core Geeklog I would be more then happy  
to make it a valid feed. I can think of tons of uses for this right off  
the top of my head, what do you think?

My addition to article.php is as follows:

} elseif (($mode == 'xml') && ($_CONF['hideprintericon'] == 0)) {
             $story_template = new Template($_CONF['path_layout'] .  
'article');
             $story_template->set_file('article','xml.thtml');
             $icount = DB_count($_TABLES['article_images'],'ai_sid',  
$A['sid']);
         if ($icount > 0) {
             $result_articles = DB_query("SELECT * FROM  
{$_TABLES['article_images']} WHERE ai_sid = '{$A['sid']}'");
             for ($z = 1; $z <= $icount; $z++) {
                 $I = DB_fetchArray($result_articles);
                 $blah .= '<image>' . $_CONF['site_url'] .  
'/images/articles/' . $I['ai_filename'] . '</image>';
         }
         }
             $story_template->set_var('article_images',
                 $blah);
             $story_template->set_var('page_title',
                     $_CONF['site_name'] . ': ' .  
stripslashes($A['title']));
              
$story_template->set_var('story_title',stripslashes($A['title']));
             $curtime = COM_getUserDateTimeFormat($A['day']);
             $story_template->set_var('story_date', $curtime[0]);
             if ($_CONF['contributedbyline'] == 1) {
                 $story_template->set_var('lang_contributedby',  
$LANG01[1]);
                 $story_template->set_var('story_author',  
DB_getItem($_TABLES['users'],'username',"uid = '{$A['uid']}'"));
             }
             //$A['introtext'] = preg_replace("/(\<img)(.*?)(\>)/si",  
"", $A['introtext']);
             $A['introtext'] = htmlspecialchars($A['introtext']);
	        $A['introtext'] = mysql_escape_string($A['introtext']);
	        $A['introtext'] = stripslashes($A['introtext']);
	        $A['bodytext'] = htmlspecialchars($A['bodytext']);
	        $A['bodytext'] = mysql_escape_string($A['bodytext']);
	        $A['bodytext'] = stripslashes($A['bodytext']);
             if ($A['postmode'] == 'html') {
                 $story_template->set_var ('story_introtext',
                         stripslashes ($A['introtext']));
                 $story_template->set_var ('story_bodytext',
                         stripslashes ($A['bodytext']));
             } else {
                 $story_template->set_var ('story_introtext',
                         stripslashes ($A['introtext']));
                 $A['story_bodytext'] =  
preg_replace("/(\<img)(.*?)(\>)/si", "", $A['story_bodytext']);
                 $story_template->set_var ('story_bodytext',
                         stripslashes ($A['bodytext']));
             }
             $story_template->set_var('site_url',$_CONF['site_url']);
              
$story_template->set_var('site_slogan',$_CONF['site_slogan']);
             $story_template->set_var('layout_url',$_CONF['layout_url']);
             $story_template->set_var('story_id', $A['sid']);
             $story_template->set_var('story_comments',  
DB_count($_TABLES['comments'],'sid',$A['sid']));
             $story_template->set_var('lang_comments', $LANG01[3]);
             $story_template->parse('output','article');
             $display =  
$story_template->finish($story_template->get_var('output'));



The template file I am using is called xml.thtml, is in the  
layout/theme/article directory and looks like:

<?xml version="1.0" encoding="UTF-8"?>
<rss version="0.91">
<channel>
<title>{page_title}</title>
<language>en-gb</language>
<link>{site_url}</link>
<description>{site_slogan}</description>
<language>en-gb</language>
<item>
<title>{story_title}</title>
<link><a  
href="{site_url}/article.php?story={story_id}">{site_url}/article.php? 
story={story_id}</a></link>
<description html_text="{story_introtext}"  
body_text="{story_bodytext}"></description>
{article_images}
</item>
</channel>
</rss>