1 files changed, 13 insertions, 0 deletions
diff --git a/src/org/traccar/web/client/model/EnumKeyProvider.java b/src/org/traccar/web/client/model/EnumKeyProvider.java
new file mode 100644
index 00000000..c41d420e
--- /dev/null
+++ b/src/org/traccar/web/client/model/EnumKeyProvider.java
@@ -0,0 +1,13 @@
+package org.traccar.web.client.model;
+
+import com.sencha.gxt.data.shared.ModelKeyProvider;
+
+
+public class EnumKeyProvider<T extends Enum<T>> implements ModelKeyProvider<T> {
+
+    @Override
+    public String getKey(T item) {
+        return String.valueOf(item.ordinal());
+    }
+
+}