wp-courseware-edd.php

<?php
/*
 * Plugin Name: WP Courseware - EDD Add On
 * Version: 1.0
 * Plugin URI: http://flyplugins.com
 * Description: The official extension for <strong>WP Courseware</strong> to add integration for the <strong>Easy Digital Downloads plugin</strong> for WordPress.
 * Author: Fly Plugins
 * Author URI: http://flyplugins.com
 */
/*
 Copyright 2014 Fly Plugins - Lighthouse Media, LLC

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */


// Main parent class
include_once 'class_members.inc.php';

// Hook to load the class
add_action('init', 'WPCW_EDD_init',1);


/**
 * Initialise the membership plugin, only loaded if WP Courseware 
 * exists and is loading correctly.
 */
function WPCW_EDD_init()
{
	$item = new WPCW_EDD();
	
	// Check for WP Courseware
	if (!$item->found_wpcourseware()) {
		$item->attach_showWPCWNotDetectedMessage();
		return;
	}
	
	// Not found the membership tool
	if (!$item->found_membershipTool()) {
		$item->attach_showToolNotDetectedMessage();
		return;
	}
	
	// Found the tool and WP Coursewar, attach.
	$item->attachToTools();
}


/**
 * Membership class that handles the specifics of the Exchange WordPress plugin and
 * handling the data for levels for that plugin.
 */
class WPCW_EDD extends WPCW_Members
{
	const GLUE_VERSION  	= 1.00; 
	const EXTENSION_NAME 	= 'Easy Digital Downloads';
	const EXTENSION_ID 		= 'WPCW_EDD';
	
	
	/**
	 * Main constructor for this class.
	 */
	function __construct()
	{
		// Initialise using the parent constructor 
		parent::__construct(WPCW_EDD::EXTENSION_NAME, WPCW_EDD::EXTENSION_ID, WPCW_EDD::GLUE_VERSION);
	}
	
	
	/**
	 * Get the membership levels for this specific membership plugin.
	 */
	protected function getMembershipLevels()
	{
		//Get all published membership posts
        $levelData = get_posts( array( 'post_type' => 'download', 'posts_per_page' => -1 ) );

		if ($levelData && count($levelData) > 0)
		{
			$levelDataStructured = array();
			
			// Format the data in a way that we expect and can process
			foreach ($levelData as $levelDatum)
			{
				$levelItem = array();
				$levelItem['name'] 	= get_the_title($levelDatum->ID) ;
				$levelItem['id'] 	= $levelDatum->ID;
				$levelDataStructured[$levelItem['id']]  = $levelItem;
			}
			
			return $levelDataStructured;
		}
		
		return false;
	}

	
	/**
	 * Function called to attach hooks for handling when a user is updated or created.
	 */	
	protected function attach_updateUserCourseAccess()
	{
        	add_action( 'edd_updated_edited_purchase', array( $this, 'handle_updateUserCourseAccess' ));
    		add_action( 'edd_complete_purchase', array( $this, 'handle_updateUserCourseAccess'));
	}


	/**
		 * Assign selected courses to members of a paticular level.
		 * @param Level ID in which members will get courses enrollment adjusted.
		 */
	protected function retroactive_assignment($level_ID)
    {
        //Get all transactions from EDD
        $logging = new EDD_Logging();
        $transactions = $logging->get_logs( $level_ID );

        $payment_ids = array();
        $customer_ids = array();

        //Convert log entries into payment IDs
        if( $transactions ) {
            foreach($transactions as $key => $transaction){
                $payment_ids[] = get_post_meta( $transaction->ID, '_edd_log_payment_id', true );
            }
        }

        //Get IDs that are member of membership level
        if( count( $payment_ids ) > 0 ) {
            foreach($payment_ids as $key => $payment_id){
                $customer_ids[$key] = get_post_meta( $payment_id, '_edd_payment_user_id', true );
            }
        }

        //clean up duplicate IDs
        $customer_ids = array_unique($customer_ids);
		
        $page = new PageBuilder(false);

        //Enroll members of level
        if( count( $customer_ids ) > 0 ) {
            foreach ($customer_ids as $customer_id )
            {
            	$memberLevels = edd_get_users_purchased_products( $customer_id );
            
                $userLevels = array();

				foreach( $memberLevels as $key => $memberLevel ) {
					$userLevels[$key] = $memberLevel->ID;
				}
    
                // Over to the parent class to handle the sync of data.
                parent::handle_courseSync($customer_id, $userLevels);

			    $page->showMessage(__('All members were successfully retroactively enrolled into the selected courses.', 'wp_courseware'));
            }
            return;
        } else {
            $page->showMessage(__('No existing members found for the specified level.', 'wp_courseware'));
        }
	}
	

	/**
	 * Function just for handling the membership callback, to interpret the parameters
	 * for the class to take over.
	 * 
	 * @param Integer $id The ID if the user being changed.
	 * @param Array $levels The list of levels for the user.
	 */
	public function handle_updateUserCourseAccess($transaction_id)
    {
        // Get transaction data
        $transaction = get_post( $transaction_id );
        
        // Get customer ID based on transaction ID
        $customer_id = get_post_meta( $transaction->ID, '_edd_payment_user_id', true );
        
        // Get all membership levels for customer making current transaction
		$memberLevels = edd_get_users_purchased_products( $customer_id );

		$userLevels = array();

			foreach( $memberLevels as $key => $memberLevel ) {
				$userLevels[$key] = $memberLevel->ID;
			}
		// Over to the parent class to handle the sync of data.
		parent::handle_courseSync($customer_id, $userLevels);
	}
	

	/**
	 * Detect presence of the membership plugin.
	 */
	public function found_membershipTool()
	{
		return class_exists('Easy_Digital_Downloads');
	}
	
	
}