Use POST instead of GET when saving order

When the pagination is disabled or quite large, issuing a GET request
would return a 500 because the fieldid value could not be read by PHP,
since the url with all the parameters was too long.

Changing to a POST requet is a better option and can accept more data.

assets/order_entries.publish.js

@@ -42,7 +42,7 @@
 			if (table.find('.order-entries-item').length > 0){
 				startValue = parseInt(table.find('.order-entries-item').eq(0).text(),10);
 			} else {
-				startValue = parseInt(table.find('tbody tr').eq(0).data('order'),10);				
+				startValue = parseInt(table.find('tbody tr').eq(0).data('order'),10);
 			}
 			var assumedStartValue = Symphony.Context.get('env').pagination['max-rows'] * (Symphony.Context.get('env').pagination['current'] - 1) + 1;
 			if (startValue == 0 || direction == 'asc' && startValue < assumedStartValue) {
@@ -65,13 +65,13 @@
 			// Store sort order
 			if(oldSorting != newSorting) {
 				$.ajax({
-					type: 'GET',
+					type: 'POST',
 					url: Symphony.Context.get('symphony') + '/extension/order_entries/save/',
 					data: newSorting + '&field=' + fieldId + filters + '&' + Symphony.Utilities.getXSRF(true),
 					success: function() {
 						oldSorting = newSorting;
 
-					// Update indexes
+						// Update indexes
 						var items = table.find('tbody tr');
 						items.each(function(index) {
 							if(direction == 'asc') {

content/content.save.php

@@ -5,9 +5,9 @@
 	Class contentExtensionOrder_entriesSave extends JSONPage{
 
 		public function view(){
-			$field_id = General::sanitize($_GET['field']);
-			$items = $_GET['items'];
-			$filters = $_GET['filters'];
+			$field_id = General::sanitize($_POST['field']);
+			$items = $_POST['items'];
+			$filters = $_POST['filters'];
 
 			if(!is_array($items) || empty($items)) {
 				$this->_Result['error'] = __('No items provided');