detectOldValuenewValueOperation.js

This onChange Client script comes handy when dealing with Glide List type fields where we have to detect whether the value was added or removed and returns the display name of users who were added/removed along with name of operation performed.

Author: SrijanPatwa

Client-Side Components/Client Scripts/Detect oldValue newValue and Operation in Glide List Type Fields/detectOldValuenewValueOperation.js

@@ -3,7 +3,6 @@ function onChange(control, oldValue, newValue, isLoading, isTemplate) {
         return;
     }
 
-
     var prevValue;
     if (g_scratchpad.prevValue == undefined)
         prevValue = oldValue;
@@ -16,7 +15,6 @@ function onChange(control, oldValue, newValue, isLoading, isTemplate) {
     var oldGlideValue = prevValue.split(',');
     var newGlideValue = newValue.split(',');
 
-
     var operation;
 
     if (oldGlideValue.length > newGlideValue.length || newValue == '') {
@@ -27,9 +25,19 @@ function onChange(control, oldValue, newValue, isLoading, isTemplate) {
         operation = '';
     }
 
-    g_form.clearMessages();
-    g_form.addSuccessMessage('Operation Performed : ' + operation);
-    g_form.addSuccessMessage('OldValue : ' + oldGlideValue);
-    g_form.addSuccessMessage('newValue : ' + newGlideValue);
+    var ajaxGetNames = new GlideAjax('scriptUtil');
+    ajaxGetNames.addParam('sysparm_name', 'getWatchListUsers');
+    ajaxGetNames.addParam('sysparm_old_values', oldGlideValue);
+    ajaxGetNames.addParam('sysparm_new_values', newGlideValue);
+    ajaxGetNames.getXMLAnswer(function(response) {
+
+        var result = JSON.parse(response);
+
+        g_form.clearMessages();
+        g_form.addSuccessMessage('Operation Performed : ' + operation);
+        g_form.addSuccessMessage('OldValue : ' + result.oldU);
+        g_form.addSuccessMessage('NewValue : ' + result.newU);
+
+    });
 
 }