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Use WordPress to print a RSS feed for Eventbrite attendees

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Today I was working on the WordCamp.LA site. I was trying to show the “attendee list” on the attendees page with out having to update the page every day.

Since I am using EventBrite to promote and sell ticket to the event I can collect info from there list. Evey one who purchases a ticket gets put into the ticketed database which you can view with either RSS or OPML.

I chose to use RSS and the WordPress core file rss.php.

In the functions.php file I’ve added this function:

function attendee_feed_print_2009() {
	global $wpdb;
		include_once( ABSPATH . WPINC . '/rss.php' );
		$rss = fetch_rss( 'http://www.eventbrite.com/rss/event_list_attendees/384870157' );
		$items = array_slice( $rss->items, 0 );

Where I’ve named my function, and included the core RSS file from WordPress. I also told it to fetch the feed from the address (alternatively you can use any feed link you like).

if ( empty( $items ) ) echo '<ul style="list-style-type: none; list-style-image: none; list-style-position: outside;"><li>No items</li></ul>';

 else

 foreach ( $items as $item ) : ?>
 <ul style="list-style-type:none; list-style-image:none; list-style-position:outside; margin-bottom: 0px">
 <li><!--<strong><?php echo $item[ 'title' ]; //User name ?></strong><br />-->

 <?php echo $item[ 'content' ][ 'encoded' ]; ?>

 <hr style="border: 1px solid #ddd; margin-bottom: 8px" />
 </li>
 </ul>
 <?php endforeach;

I then added the core style to fit this current feed.

And the final out come looks like this:

function attendee_feed_print_2009() {
 global $wpdb;
 include_once( ABSPATH . WPINC . '/rss.php' );
 $rss = fetch_rss( 'http://www.eventbrite.com/rss/event_list_attendees/384870157' );
 $items = array_slice( $rss->items, 0 );
 if ( empty( $items ) ) echo '<ul style="list-style-type: none; list-style-image: none; list-style-position: outside;"><li>No items</li></ul>';

 else

 foreach ( $items as $item ) : ?>
 <ul style="list-style-type:none; list-style-image:none; list-style-position:outside; margin-bottom: 0px">
 <li><!--<strong><?php echo $item[ 'title' ]; //User name ?></strong><br />-->

 <?php echo $item[ 'content' ][ 'encoded' ]; ?>

 <hr style="border: 1px solid #ddd; margin-bottom: 8px" />
 </li>
 </ul>
 <?php endforeach;
}

Don’t forget to wrap the code in <?php ?>

I want to thank John Kolbert for helping me with printing the content:encoded portion. http://pastebin.com/m1588fb30

See it in action: http://wordcamp.la/attendees/

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4 Comments

4 Comments

  1. Pingback: Twitted by eventbrite

  2. Pingback: Turn your RSS feed into a shortcode — WPCult

  3. Joanna

    August 26, 2009 at 10:53 pm

    Thanks for the tutorial. I’m going to try this out.

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Tips & Tricks

Display custom url if comment authors url is blank

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Here is a nifty trick for your comments.php template. If someone comes to your site and leaves a comment but doesn’t leave a url back to there site, the default link that is shown in place of the php code comment_author_url is the current page link.

That might not look good. So, here is a little trick that I just implemented into my site. Besides installing the twittar plugin and pulling Twitter avatars I wanted to use the image itself for the authors url like. But if the author doesn’t have a Twitter avatar or a Gravatar it will display a default Gravatar that I set. If the default Gravatar is shown, usually the author will not leave a url link.

I would like to link the image to Gravatar.com so that they can get an image attached to their email address. So.. here is the code:

<?php if($comment->comment_author_url != "") { ?>
<a href="<?php comment_author_url(); ?>"><?php gravatar(); ?></a>
<?php } else { ?>
<a rel="nofollow" href="http://gravatar.com" title="Get a Gravatar today!"><?php gravatar(); ?></a>
<?php } ?>
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Tips & Tricks

Echo custom fields in any category

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Here is a neat trick. Say you want to show a custom field in you post or in a certain categories post. There is a simple code you need to write in order to accomplish this:

<?php $image = get_post_meta($post->ID, "image", $single = true); ?>
<?php if($image != '') : if(in_category(7)) { echo ''; } else { ?>
<img src="<?php echo $image ?>" alt="<?php the_title(); ?>" /></a>

In the example above I am calling the variable $image and telling the server that it equals the value of “image” inside get_post_meta or “custom field” of the current post.

Then we are asking if that variable $image doesn’t equal nothing or != and if it is in the category id of 7, echo what ever is in the single quotes (which is nothing in this example), otherwise show the <img> and the value inside “image” which should be the location of the image.

Update: Thanks to Austin from PressedWords for pointing out his trick, from the comment below.

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Tips & Tricks

Disable caching of your site or post

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I talked about Disabling search engine on search pages in a previous post using the meta tag. Today lets go over the web bots Cached copy of your site. If you are working on builder your blog, or have a temporary site up, use the following code:

<meta name="robots" content="noarchive">

This will tell any bot to follow your site, index it, but prevents a cached copy of this page from being available in the search results.

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