escopecz/functions.md

## functions.md

      
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              functions.md
            
          
    Here is solution for Easy Digital Downloads WP plugin to disable downloads one year after purchase.
Place these 3 functions to /wp-content/themes/{your_theme}/functions.php:
/**
 * Function returns expiration date based on post / payment date.
 * Replace '365 day' with your time period.
 * 
 * @param string date of post / payment
 * @return string date in unix timestamp format
 */
function ow_edd_get_expiration_date($post_date) {

	// Create expire date 365 days from payment date
	$expiration_date = date("U", strtotime($post_date . " + 365 day"));

	return $expiration_date;
}

/**
 * Hook from before the package is downloaded.
 * It modify expire date which then allow or deny
 * the user to download the package.
 * 
 * @param array request arguments
 * @return array request arguments
 */
function ow_edd_license_length( $args ) {

	// Do not continue when payment key is not filled or empty
	if (!isset($args['key']) || !$args['key']) {
		return $args;
	}

	global $wpdb;

	// Get post / payment date by payment key from request.
	$post_date = $wpdb->get_var( 'SELECT p.post_date 
								FROM wp_postmeta pm
								LEFT JOIN wp_posts p ON p.ID = pm.post_id
								WHERE pm.meta_key = "_edd_payment_purchase_key"
								AND pm.meta_value = "'.addslashes($args['key']).'"');

	// Do not continue if date was not find in the database
	if (!$post_date) {
		return $args;
	}

	// Set expire date
	$args['expire'] = ow_edd_get_expiration_date($post_date);

	// Return args with modified expire date
	return $args;

}
add_filter( 'edd_process_download_args', 'ow_edd_license_length');

/**
 * Hook is fired on payment detail page and
 * adds new table row - Expiration Date
 * 
 * @param Object payment post info
 * @return void
 */
function ow_edd_expiration_date_template($payment, $edd_receipt_args) {

  $expiration_date = ow_edd_get_expiration_date($payment->post_date);
  $date_fromat  = get_option('date_format');
  $link = '';

  if (time() > $expiration_date) {
    $link = ' <br /><a href="/pricing-signup/" class="btn btn-info btn-xl">Click here to renew your membership</a>';
  }

  echo '<tr>';
  echo '<td><strong>Expiration Date</strong></td>';
  echo '<td>'.date($date_fromat, $expiration_date).$link.'</td>';
  echo '</tr>';

}
add_action('edd_payment_receipt_after','ow_edd_expiration_date_template');