In preparation for the release of Event Espresso (the new name of Advanced Events Registration,) we have just opened up our  new forums.

Many of you have been using the WordPress forums to ask your questions about the Advanced Events Registration plugin. The only problem with that is that I don’t know anyone has posted anything there. I try to login and check every once in a while, but that is very inefficient and some questions go unanswered. I am hoping to change this with our new forums.

So please head on over and say hello, leave us some feedback in the “Suggestion Box” or show off your site in the new “Website Showcase.”

WP-Junkie Shoping Cart Example

Tired of adding lots of HTML button code to WordPress posts and pages?

Introducing WP E-Junkie, a quick and easy to use solution for selling product downloads using the WP E-Junkie Shopping Cart system and WordPress. All you need is an E-Junkie account, your E-junkie client id and a self hosted WordPress website.

Buttons are easily added to a post/page by pasting a small shortcode containing the product id any of your products hosted on E-Junkie.com.

The plugin is totally free and custom buttons can even be added via the plugin settings page!

Check out the new WP E-Junkie Shopping Cart, view screen shots, or see the plugin in action.

Beware of “pirated” premium plugins and themes that may add malicious scripts and open back doors into your server and/or your WordPress installations.

Apparently several people have had the misfortune of downloading a pirated version of my Advanced Events Registration plugin from some file sharing websites. One person’s site was entirely overwritten with spam posts and links pirated software. While another persons entire website was completely wiped out.

The website owner (whom I wont mention here) actually threatened to sue me because five years worth of content was completely removed from their blog. When I asked for a copy of their receipt from the purchase of the premium plugin. The person stated they had downloaded it from a free file hosting website. Can you believe it! So I stated the obvious, “You didn’t purchase the plugin from my website, so you will need to contact whomever you received the files from. I am not responsible for code that may be distributed by outside sources.”

Moral of the story:

Premium plugins and themes may be GPL licensed (or not in some cases.) Unless you get them from a trusted source, you may be taking a major risk using them.

Related information:

How Downloading a Premium Theme/Plugin From the Wrong Place Can Ruin Your Site

Downloading a Premium Theme from the Wrong Site can be Expensive

Download Free Premium WordPress theme :What’s the Catch?

WordPress Premium Developer and Author Piracy My Thoughts

The Ethics of WordPress Themes at a Premium

The Authorize.net gateway is now available on the Pro Version page. If you have been patiently waiting for the addition of Authorize.net into the event registration system, your wait is now over! I have spent the last few weeks getting the pro version of the plugin ready for the NEW payment gateways and building the Authorize.net gateway and IPN.

Authorize.net is not the only thing that is new. I have released several other new addons recently as well. I added a “Member Integration Module” and a “Custom Files Addon” to the list of available features for the pro version of the plugin. Be sure to visit the pro version page to see more!

For a couple of weeks I was trying to figure out why the database tables in my plugin weren’t getting updated when the plugin was installed or activated. I had recently written a function (based on this example) to create tables in my WordPress plugin. I finally narrowed it down to the dbDelta function for WordPress. After doing  a few searches on Google I came across this article which explains the the dbDelta function in detail.

Come to find out I was missing a space between a ‘“‘ and a ‘(‘ as seen below.

$sql_create_table = "CREATE TABLE " . $wp_table_name . "( " . $sql . " );";

Here is how it should have looked:

$sql_create_table = "CREATE TABLE " . $wp_table_name . "  (  " . $sql . "  )  ;";

Notice the spaces highlighted in green? That was the killer. So for a while, every time I added a new field to a table in database install file. For a while I was using a function (seen below) to alter the table and add the new fields.

function add_column_if_not_exist($db, $column, $column_attr = "VARCHAR( 255 ) NULL" ){
global $wpdb;
$exists = false;
$columns = $wpdb->query("show columns from $db");
while($c = $wpdb->get_row($columns)){
if($c['Field'] == $column){
$exists = true;
break;
}
}
if(!$exists){
if (!$wpdb->query("ALTER TABLE `$db` ADD `$column`  $column_attr")){
$error = 'There was a problem adding columns to the database.';
}
}
return $error;
}

So, if you are having trouble with the dbDelta function when writing a Wrodpress plugin. Be aware of extra spaces

Here is more information about the dbDelta function and creating tables with plugins:

http://codex.wordpress.org/Creating_Tables_with_Plugins

http://wordpress.org/tags/dbdelta-1

http://hungred.com/how-to/wordpress-dbdelta-function/

http://designoplasty.com/2009/05/15/not-using-dbdelta-with-wordpress/

Here is a very useful function I have written to install/update the database tables in your custom WordPress plugin. Basically I have used the examples given on the “Creating Tables with Plugins” page at WordPress.org.

In your main plugin file (ex. my_plugin.php) I define my plugin version:

define("MY_PLUGIN_VERSION", "2.16" ); //Declare the plugin version. This way we know the tables are always up to date. I usually declare this in my main plugin file.
require_once("includes/functions.php");
require_once("includes/database_install.php");
register_activation_hook(__FILE__,'my_plugin_data_tables_install');

Then in my functions.php file:

function my_plugin_run_install ($table_name, $table_version, $sql) {
		   global $wpdb;
		   $wp_table_name = $wpdb->prefix . $table_name;
		   if($wpdb->get_var("SHOW TABLES LIKE '".$table_name."'") != $table_name) {
				$sql_create_table = "CREATE TABLE " . $wp_table_name . " ( " . $sql . " ) ;";
				require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
				dbDelta($sql_create_table);
 
			//create option for table version
				$option_name = $table_name.'_tbl_version';
				$newvalue = $table_version;
				  if ( get_option($option_name) ) {
					    update_option($option_name, $newvalue);
					  } else {
					    $deprecated=' ';
					    $autoload='no';
					    add_option($option_name, $newvalue, $deprecated, $autoload);
				  }
			//create option for table name
				$option_name = $table_name.'_tbl';
				$newvalue = $wp_table_name;
				  if ( get_option($option_name) ) {
					    update_option($option_name, $newvalue);
					  } else {
					    $deprecated=' ';
					    $autoload='no';
					    add_option($option_name, $newvalue, $deprecated, $autoload);
				  }
		}
 
	// Code here with new database upgrade info/table Must change version number to work.
	$installed_ver = get_option( $table_name.'_tbl_version' );
	     if( $installed_ver != $table_version ) {
		  $sql_create_table = "CREATE TABLE " . $wp_table_name . " ( " . $sql . " ) ;";
	      require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
	      dbDelta($sql_create_table);
	      update_option( $table_name.'_tbl_version', $table_version );
	      }
	    }

Using the function is quite simple and can save a few lines of code. especially if you need to install several new tables.

Here is an example of database_install.php:

function my_plugin_data_tables_install () {
$table_version = MY_PLUGIN_VERSION; //Call the plugin version.
//Install the first table
$table_name = "my_first_plugin_tbl";
$sql = "id mediumint(9) NOT NULL AUTO_INCREMENT,
	  time bigint(11) DEFAULT '0' NOT NULL,
	  name tinytext NOT NULL,
	  text text NOT NULL,
	  url VARCHAR(100) NOT NULL,
	  UNIQUE KEY id (id)";
my_plugin_run_install  ($table_name, $table_version, $sql);
 
//Install the second table
$table_name = "my_second_plugin_tbl";
$sql = "id mediumint(9) NOT NULL AUTO_INCREMENT,
	   category_name VARCHAR(100) DEFAULT NULL,
	   category_identifier VARCHAR(45) DEFAULT NULL,
	   category_desc TEXT,
	   display_desc VARCHAR (4) DEFAULT NULL,
	  UNIQUE KEY id (id)";
my_plugin_run_install  ($table_name, $table_version, $sql);
}

I hope this helps some of the WordPress plugin authors out there.

Event Listings and Registration Pages

This WordPress plugin provides a way to take online registrations for events such as conference and seminars that are held live. Events are managed quickly and easily from within the WordPress dashboard.

The plugin also uses the PayPal IPN to record payments to the built in WordPress database. It allows you to capture the registering persons contact information to the WordPress database as well as provides the ability to send the registrar to your PayPal payment site for online collection of event fees. PayPal payments are captured to the database using the PayPal Standard IPN.

Reporting features provide a list of events, list of attendees, and excel export.

Download Plugin | View Example (free version) | Upgrade to Pro Version | Support Forum | Comment

If you like this plugin, please consider making a small donation or clicking on a few of the ads displayed on the site.

Installation:

1. After unzipping, upload everything in the ‘paypal-events-registration’ folder to your ‘/wp-content/plugins/’ directory (preserving directory structure).
2. Activate the plugin through the ‘Plugins’ menu in WordPress.
3. Go to the Event Registration Menu and Configure Organization and enter your company info – note you will need a PayPal id if you plan on accepting PayPal payments
4. Go to the Event Setup and create a new event, make sure you select ‘make active’.
5. Create a new page (not post) on your site. Put {EVENTREGIS} in it on a line by itself.

Note: if you are upgradings from a previous version please backup your data prior to upgrade.

If you have watched the video below and are having trouble installing the plugin or just need additional support. Please visit our “Premium Support” page or view the FAQ below.

Setting up the Plugin

Frequently Asked Questions:
To use, create a new page with only  {EVENTREGIS}

To display list of attendees of an active event use {EVENTATTENDEES} on a page or post.

*For URL link back to the payment/thank you page use  {EVENTREGPAY} on a new page.

*For PayPal to notify about payment confirmation use  {EVENTPAYPALTXN} on a new page.

*This page should be hidden from from your navigation menu. Exclude pages by using the ‘Exclude Pages‘ plugin from http://wordpress.org/extend/plugins/exclude-pages/ or using the ‘exclude’ parameter in your ‘wp_list_pages’ template tag. Please refer to http://codex.wordpress.org/Template_Tags/wp_list_pages for more information about excluding pages.

Email Confirmations:
For customized confirmation emails, the following tags can be placed in the email form and they will pull data from the database to include in the email.

[fname], [lname], [phone], [event],[description], [cost], [company], [co_add1], [co_add2], [co_city],[co_state], [co_zip],[contact], [payment_url], [start_date], [start_time], [end_date], [end_time]

Sample Mail Send:

***This is an automated response – Do Not Reply***

Thank you [fname] [lname] for registering for [event].  We hope that you will find this event both informative and enjoyable.  Should have any questions, please contact [contact].

If you have not done so already, please submit your payment in the amount of [cost].

Click here to review your payment information [payment_url].

Thank You.

Attendees and Payments

Screenshot of Events Registration with IPN Pro using the Calendar (Pro Version)

Screenshot of some Event Setup Options (Pro Version)

Events and Payments

Attention:
If you haven’t noticed, the WordPress plugin “Events Registration with PayPal IPN” is no longer available for download on WordPress.org. We found some serious security issues within the plugin (mostly deprecated WordPress database functions) so we decided it best to go ahead and remove the plugin until security was improved.

After a major overhaul of the back-end code we have re-released the plugin under a new name (Advanced Events Registration) and have also released a pro version of the plugin with many additional features.

It is highly recommended that you upgrade to the latest version of the Advanced Events Registration plugin ASAP.