Optimise code.

public/v1/js/ff/list/groups.js

@@ -22,7 +22,97 @@ var count = 0;
 
 $(document).ready(function () {
     updateListButtons();
+    addSort();
 });
+
+var fixHelper = function (e, tr) {
+    "use strict";
+    var $originals = tr.children();
+    var $helper = tr.clone();
+    $helper.children().each(function (index) {
+        // Set helper cell sizes to match the original sizes
+        $(this).width($originals.eq(index).width());
+    });
+    return $helper;
+};
+
+/**
+ *
+ */
+function addSort() {
+    if (typeof $(".table-sortable>tbody").sortable !== "undefined") {
+        $('.table-sortable>tbody').sortable(
+            {
+                items: "tr:not(.unsortable)",
+                handle: '.object-handle',
+                stop: sortStop,
+                start: function (event, ui) {
+                    // Build a placeholder cell that spans all the cells in the row
+                    var cellCount = 0;
+                    $('td, th', ui.helper).each(function () {
+                        // For each TD or TH try and get it's colspan attribute, and add that or 1 to the total
+                        var colspan = 1;
+                        var colspanAttr = $(this).attr('colspan');
+                        if (colspanAttr > 1) {
+                            colspan = colspanAttr;
+                        }
+                        cellCount += colspan;
+                    });
+
+                    // Add the placeholder UI - note that this is the item's content, so TD rather than TR
+                    ui.placeholder.html('<td colspan="' + cellCount + '">&nbsp;</td>');
+                }
+            }
+        );
+    }
+}
+
+/**
+ *
+ * @param event
+ * @param ui
+ * @returns {boolean|undefined}
+ */
+function sortStop(event, ui) {
+    "use strict";
+    var current = $(ui.item);
+    var thisDate = current.data('date');
+    var originalBG = current.css('backgroundColor');
+
+
+    if (current.prev().data('date') !== thisDate && current.next().data('date') !== thisDate) {
+        // animate something with color:
+        current.animate({backgroundColor: "#d9534f"}, 200, function () {
+            $(this).animate({backgroundColor: originalBG}, 200);
+            return undefined;
+        });
+
+        return false;
+    }
+    //return false;
+    // do update
+    var list = $('tr[data-date="' + thisDate + '"]');
+    var submit = [];
+    $.each(list, function (i, v) {
+        var row = $(v);
+        var id = row.data('id');
+        submit.push(id);
+    });
+
+    // do extra animation when done?
+    $.post('transactions/reorder', {items: submit, date: thisDate, _token: token});
+
+    current.animate({backgroundColor: "#5cb85c"}, 200, function () {
+        $(this).animate({backgroundColor: originalBG}, 200);
+        return undefined;
+    });
+    return undefined;
+}
+
+
+/**
+ *
+ */
 function updateListButtons() {
     // top button to select all / deselect all:
     $('input[name="select-all"]').change(function () {
@@ -91,8 +181,6 @@ function getCheckboxes() {
 }
 
 
-
-
 function countChecked() {
     count = $('.mass-select:checked').length;
 }