redefined & added arguments to existing FBVs in apps.dashboard.views; added new FBV to add to-do items to existing lists; added capture groups to some paths in .urls (tho these are now due for DRY refactor); django templating added to form action in templates/apps/dashboard/list.html; DashViewTest(), NewListTest() & NewItemTest() refactored for dynamic ids in .tests

apps/dashboard/tests.py

@@ -41,24 +41,32 @@ class ListAndItemModelsTest(TestCase):
 
 class DashViewTest(TestCase):
     def test_uses_list_template(self):
-        response = self.client.get('/apps/dashboard/the-only-list-in-the-world/')
+        mylist = List.objects.create()
+        response = self.client.get(f'/apps/dashboard/{mylist.id}/')
         self.assertTemplateUsed(response, 'apps/dashboard/list.html')
 
     def test_renders_input_form(self):
-        response = self.client.get('/apps/dashboard/the-only-list-in-the-world/')
-        self.assertContains(response, '<form method="POST" action="/apps/dashboard/newlist">')
+        mylist = List.objects.create()
+        response = self.client.get(f'/apps/dashboard/{mylist.id}/')
+        self.assertContains(
+            response,
+            f'<form method="POST" action="/apps/dashboard/{mylist.id}/add-item">',
+        )
         self.assertContains(response, '<input name="item_text"')
 
-    def test_displays_all_list_items(self):
+    def test_displays_only_items_for_that_list(self):
         # Given/Arrange
-        mylist = List.objects.create()
-        Item.objects.create(text='itemey 1', list=mylist)
-        Item.objects.create(text='itemey 2', list=mylist)
+        correct_list = List.objects.create()
+        Item.objects.create(text='itemey 1', list=correct_list)
+        Item.objects.create(text='itemey 2', list=correct_list)
+        other_list = List.objects.create()
+        Item.objects.create(text='other list item', list=other_list)
         # When/Act
-        response = self.client.get('/apps/dashboard/the-only-list-in-the-world/')
+        response = self.client.get(f'/apps/dashboard/{correct_list.id}/')
         # Then/Assert
         self.assertContains(response, 'itemey 1')
         self.assertContains(response, 'itemey 2')
+        self.assertNotContains(response, 'other list item')
 
 class NewListTest(TestCase):
     def test_can_save_a_POST_request(self):
@@ -69,4 +77,31 @@ class NewListTest(TestCase):
 
     def test_redirects_after_POST(self):
         response = self.client.post('/apps/dashboard/newlist', data={'item_text': 'A new list item'})
-        self.assertRedirects(response, '/apps/dashboard/the-only-list-in-the-world/')
+        new_list = List.objects.get()
+        self.assertRedirects(response, f'/apps/dashboard/{new_list.id}/')
+
+class NewItemTest(TestCase):
+    def test_can_save_a_POST_request_to_an_existing_list(self):
+        other_list = List.objects.create()
+        correct_list = List.objects.create()
+
+        self.client.post(
+            f'/apps/dashboard/{correct_list.id}/add-item',
+            data={'item_text': 'A new item for an existing list'},
+        )
+
+        self.assertEqual(Item.objects.count(), 1)
+        new_item = Item.objects.get()
+        self.assertEqual(new_item.text, 'A new item for an existing list')
+        self.assertEqual(new_item.list, correct_list)
+
+    def test_redirects_to_list_view(self):
+        other_list = List.objects.create()
+        correct_list = List.objects.create()
+
+        response = self.client.post(
+            f'/apps/dashboard/{correct_list.id}/add-item',
+            data={'item_text': 'A new item for an existing list'},
+        )
+
+        self.assertRedirects(response, f'/apps/dashboard/{correct_list.id}/')

apps/dashboard/views.py

@@ -4,11 +4,18 @@ from .models import Item, List
 def home_page(request):
     return render(request, 'apps/dashboard/home.html')
 
-def view_list(request):
-    items = Item.objects.all()
-    return render(request, 'apps/dashboard/list.html', {'items': items})
+def view_list(request, list_id):
+    our_list = List.objects.get(id=list_id)
+    items = Item.objects.filter(list=our_list)
+    return render(request, 'apps/dashboard/list.html', {'items': items, 'list': our_list})
 
 def new_list(request):
     nulist = List.objects.create()
     Item.objects.create(text=request.POST['item_text'], list=nulist)
-    return redirect('/apps/dashboard/the-only-list-in-the-world/')
+    return redirect(f'/apps/dashboard/{nulist.id}/')
+
+def add_item(request, list_id):
+    our_list = List.objects.get(id=list_id)
+    Item.objects.create(text=request.POST['item_text'], list=our_list)
+    return redirect(f'/apps/dashboard/{our_list.id}/')
+    

core/urls.py

@@ -6,5 +6,6 @@ urlpatterns = [
     path('admin/', admin.site.urls),
     path('', views.home_page, name='home'),
     path('apps/dashboard/newlist', views.new_list, name='new_list'),
-    path('apps/dashboard/the-only-list-in-the-world/', views.view_list, name='view_list'),
+    path('apps/dashboard/<int:list_id>/', views.view_list, name='view_list'),
+    path('apps/dashboard/<int:list_id>/add-item', views.add_item, name='add_item'),
 ]

templates/apps/dashboard/list.html

@@ -4,7 +4,7 @@
     </head>
     <body>
         <h1>Your To-Do List</h1>
-        <form method="POST" action="/apps/dashboard/newlist">
+        <form method="POST" action="/apps/dashboard/{{ list.id }}/add-item">
             <input name="item_text" id="id-new-item" placeholder="Enter a to-do item">
             {% csrf_token %}
         </form>