Link to parent part category

lib/inventree/part.dart

@@ -14,6 +14,22 @@ class InvenTreePartCategory extends InvenTreeModel {
 
   String get pathstring => jsondata['pathstring'] ?? '';
 
+  String get parentpathstring {
+    List<String> psplit = pathstring.split("/");
+
+    if (psplit.length > 0) {
+      psplit.removeLast();
+    }
+
+    String p = psplit.join("/");
+
+    if (p.isEmpty) {
+      p = "Top level parts category";
+    }
+
+    return p;
+  }
+
   int get partcount => jsondata['parts'] ?? 0;
 
   InvenTreePartCategory() : super();

lib/widget/category_display.dart

@@ -96,14 +96,30 @@ class _CategoryDisplayState extends State<CategoryDisplayWidget> {
       );
     } else {
       return Card(
-          child: ListTile(
+        child: Column(
-            title: Text("${category.name}"),
+          children: <Widget>[
-            subtitle: Text("${category.description}"),
+            ListTile(
-            trailing: IconButton(
+              title: Text("${category.name}"),
-              icon: FaIcon(FontAwesomeIcons.edit),
+              subtitle: Text("${category.description}"),
-              onPressed: null,
+              trailing: IconButton(
+                icon: FaIcon(FontAwesomeIcons.edit),
+                onPressed: null,
+              ),
             ),
-          )
+            ListTile(
+              title: Text("Parent Category"),
+              subtitle: Text("${category.parentpathstring}"),
+              onTap: () {
+                // TODO - Refactor this code into the InvenTreePart class
+                InvenTreePartCategory().get(category.parentId).then((var cat) {
+                  if (cat is InvenTreePartCategory) {
+                    Navigator.push(context, MaterialPageRoute(builder: (context) => CategoryDisplayWidget(cat)));
+                  }
+                });
+              },
+            )
+          ]
+        ),
       );
     }
   }