Implementing balance/total choice for manual payments

booking.manual_payment.inc

@@ -9,11 +9,16 @@
 function booking_manual_payment_admin($nid)
 {
 	global $event;
-	$payment_type_options = array(); 	
+	$payment_type_options = array();
+	$payment_balance_options = array();	
 	$form = array();	
 	$options = array();
 
 	$early_price_applies = _booking_is_earlybird();
+	
+	$payment_balance_options[0] = t('Balance Payment');
+	$payment_balance_options[1] = t('Total Payment');
+
 
 	//collect the various payment options
 	$result = db_query("SELECT pid, booking_price_descrip, booking_price, booking_late_price FROM {booking_price} where booking_eventid = :eid " .
@@ -30,7 +35,7 @@ function booking_manual_payment_admin($nid)
 	}
 	
 	//any html to put at the start of the form
-	$prefix = t("<p>Manually enter payment details.<br /><strong>Note that this adds to the total amount paid already by each person.</strong></p>");
+	$prefix = t("<p>Manually enter payment details.<br /><strong>Note that this adds to the total amount paid already by each person - the choice below is not yet implemented.</strong></p>");
 	
 	$form['booking_earlybird'] = array (
 		'#type' => 'hidden',
@@ -52,6 +57,16 @@ function booking_manual_payment_admin($nid)
 		'#required' => FALSE,
 		'#default_value' => '0.00'
 	);	
+	
+  $form['payment-balance-type'] = array(
+    '#type' => 'radios',
+    '#title' => t('Balance or total payment?'),
+		'#description' => t('If this is a total payment, the amount selected above will be added to any existing payment.  ' . 
+			'For balance payments, the amount paid is the total above minus any previous payments.<br />Select balance if the person had already paid their deposit and now has manually paid any outstanding balance.')
+    '#options' => $payment_balance_options,
+    '#default_value' => 0,
+    '#required' => TRUE
+  );  	
 
 	$header = array (
 		'booking_nid' =>  array('data' => t('Booking ID')),