Here are the slides from my talk: Licensing and Business Models for Premium Plugins (ppt).
And FYI, slides from my similar talk at WordCamp Philly (pretty similar, but more stuff on GPL in the beginning)
What You Need to Know About the GPL, Download: ppt, pptx
I’m excited to say that I’ve been accepted as a speaker at WordCamp Columbus this coming Saturday. I was a last minute addition… so thanks to the WCC folks for working that out. (Shout out to Angie Meeker: @angiemeeker / blog)
My talk is on “Licensing and Business Models for Premium Plugins”, which is a fancy way of saying “How I plan to make money with Paid Memberships Pro“. Sadly, the event is all sold out, but if you are going or able to squeeze in somehow, I look forward to seeing you there.
More info on the schedule:Â http://wordcampcolumbus.com/schedule/
Thanks WordCamp Columbus Sponsors:Â http://wordcampcolumbus.com/sponsors/
Here is a variation of some code I found on Yoast.com to disable the WP admin bar for non-admins only.
function yoast_hide_admin_bar_settings()
{
?>
<style type="text/css">
.show-admin-bar {
display: none;
}
</style>
<?php
}
function yoast_disable_admin_bar()
{
if(!current_user_can('administrator'))
{
add_filter( 'show_admin_bar', '__return_false' );
add_action( 'admin_print_scripts-profile.php', 'yoast_hide_admin_bar_settings' );
}
}
add_action('init', 'yoast_disable_admin_bar', 9);
Just copy and paste this code into your functions.php or another plugin/theme file that can add hooks. Save/upload and watch it work.
Let me know if you have any trouble using this.
The WP Page Tree plugin is a nice plugin. It shows a tree view of pages in your WP site… but it’s been broken since about version 3 or so.
I’m sure there are other tree view plugins that work well, but I liked that one. And it is actually an easy fix to get it working in WordPress versions 3+.
The issue was that the links generated in the tree view pointed to the old admin URLs for editing pages (page.php?action=edit&post=#). The new more generalized URLs for editing pages is (post.php?post=#&action=edit).
So, what you want to do is find line 404 in wppagetree.php (of version 2.8 of the plugin) and change page.php to post.php. That’s it. The whole block of code around there should look like:
if ($public) { // Create our own link to edit page for this ID $out .= "<a class=\"$pageStatus\" href=\"$pageURL\">" . $pageTitle . "</a>"; } else { $out .= "<a class=\"$pageStatus\" href=\"" . get_bloginfo('wpurl') . "/wp-admin/post.php?action=edit&post=$pageID\">" . $pageTitle . "</a> <a style=\"font-size: 10px;\" class=\"$pageStatus\" href=\"$pageURL\">#</a>"; }
Or download this zip here which has version 2.8 of the plugin plus that one fix. I may upload it to the WP directory sometime, but then I’d have to maintain. Feel free to do it for me. 
Download: page-tree-fixed.zip
Here are slides from my talk. I was told a video of the presentation will be up at WordPress.tv sometime soon. I’ll post a link when it is. And I’ll try to get these in SlideShare or something similar. I was having trouble with their site earlier.
Business Models for WordPress Plugin and Theme Distribution
What You Need to Know About the GPL
Download: ppt, pptx
Testing our new SS-Downloads plugin. It basically will require an email address before serving a specified file. Right now, I’m using a zip of the pre-release plugin for testing. I will update this to point to the latest version once it’s ready.
Should see a form or download link here.
Future plans:
I will be speaking on Business Models for Plugin/Theme Distribution. What You Need to Know About the GPL at WordCamp Philly October 30th, 2010 at Temple University in Philadelphia.
With lots of sweat and little luck, we’ll have our membership plugin available for some sort of release by then. But really I’m excited to share my thoughts on how to distribute, market, and make money off this plugin… and more interested in others ideas about the same.
If you want to hear me speak or are otherwise interested, get your ticket now.
Not sure how long WordPress has been doing this, but there is a check for duplicate comments. If the same user/email posts the same exact comment on the same post, the user will get a message like:
Duplicate comment detected; it looks as though you’ve already said that!
This is great actually, and keeps people from submitting the same comment twice if they get impatient waiting for moderation or otherwise click that submit button twice.
As a blog owner and WordPress developer, there may be situations where you want to allow people to post the same comment. If you want to enable duplicate comments on your blog for some reason, you can use this code here. Just add it to your theme’s functions.php or put this in a .php in your plugins folder and enable it.
function enable_duplicate_comments_preprocess_comment($comment_data) { //add some random content to comment to keep dupe checker from finding it $random = md5(time()); $comment_data['comment_content'] .= "disabledupes{" . $random . "}disabledupes"; return $comment_data; } add_filter('preprocess_comment', 'enable_duplicate_comments_preprocess_comment'); function enable_duplicate_comments_comment_post($comment_id) { global $wpdb; //remove the random content $comment_content = $wpdb->get_var("SELECT comment_content FROM $wpdb->comments WHERE comment_ID = '$comment_id' LIMIT 1"); $comment_content = preg_replace("/disabledupes\{.*\}disabledupes/", "", $comment_content); $wpdb->query("UPDATE $wpdb->comments SET comment_content = '" . $wpdb->escape($comment_content) . "' WHERE comment_ID = '$comment_id' LIMIT 1"); /* add your own dupe checker here if you want */ } add_action('comment_post', 'enable_duplicate_comments_comment_post');
For reference, here is the dupe check code in wp-includes/comment.php. A newer version should probably have a hook above and/or below to allow people to override the dupe checker more directly.
// Simple duplicate check // expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content) $dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND comment_approved != 'trash' AND ( comment_author = '$comment_author' "; if ( $comment_author_email ) $dupe .= "OR comment_author_email = '$comment_author_email' "; $dupe .= ") AND comment_content = '$comment_content' LIMIT 1"; if ( $wpdb->get_var($dupe) ) { do_action( 'comment_duplicate_trigger', $commentdata ); if ( defined('DOING_AJAX') ) die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); wp_die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); }
Update: No longer streaming. The plugin works great. Kim is going to make it pretty, then I’ll post to WordPress and do a right up.
I’m streaming live right now while I work on a WordPress plugin. Follow me at ustream.tv/channel/stranger-studios.
I’ll be working on a plugin for a feature that we’ve done a million different ways: asking for a user’s email address in exchange for a link to a file download. A solid plugin for this will save us a lot of time. If it turns out well, I’ll put it in the WP plugin directory and link to it from here.
Here are the requirements/specs I have for this plugin:
That’s it. Please join me. Post questions to the chat. Again, if this code comes out clean, I hope to share it.
