Added some logic

backend/apps/shelf_items/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/shelf_items/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ShelfItemsConfig(AppConfig):
+    name = 'shelf_items'

backend/apps/shelf_items/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

backend/apps/shelf_items/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/shelf_items/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.