Don’t hide the rename form on delete

It’s weird that this page changes when you click delete – it looks like
you’re going to a different page.

It should feel like you’re on the same page, just with the confirmation
message.

The problem we had before is that the rename form would `POST` to
`…/delete`, which would then delete the template instead of updating
its name.

We can fix this by explicitly setting the `action` attribute on the
rename form to always post to `…/manage`, even if the user is currently
looking at the `…/delete` page.

app/main/views/templates.py

@@ -406,7 +406,9 @@ def manage_template_folder(service_id, template_folder_id):
 def delete_template_folder(service_id, template_folder_id):
     if not current_service.has_permission('edit_folders'):
         abort(403)
-    form = TemplateFolderForm()
+    form = TemplateFolderForm(
+        name=current_service.get_template_folder(template_folder_id)['name']
+    )
     template_folder_path = current_service.get_template_folder_path(template_folder_id)
     template_folder_name = template_folder_path[-1]["name"]
 
@@ -450,7 +452,6 @@ def delete_template_folder(service_id, template_folder_id):
         current_service_id=current_service.id,
         template_folder_id=template_folder_id,
         template_type="all",
-        delete_folder=True
     )
 
 

app/templates/views/templates/manage-template-folder.html

@@ -21,20 +21,16 @@
     </div>
   </div>
 
-  {% if not delete_folder %}
-    {% call form_wrapper() %}
-      {{ textbox(form.name) }}
-      {{ page_footer(
-        'Save',
-        delete_link=url_for(
-          '.delete_template_folder',
-          service_id=current_service_id,
-          template_folder_id=template_folder_id
-        ),
-        delete_link_text="Delete this folder") }}
-    {% endcall %}
-  {% else %}
-    <a href="{{url_for('.manage_template_folder', service_id=current_service.id, template_folder_id=template_folder_id)}}">Back to manage folder page</a>
-  {% endif %}
+  {% call form_wrapper(action=url_for('main.manage_template_folder', service_id=current_service.id, template_folder_id=template_folder_id)) %}
+    {{ textbox(form.name) }}
+    {{ page_footer(
+      'Save',
+      delete_link=url_for(
+        '.delete_template_folder',
+        service_id=current_service_id,
+        template_folder_id=template_folder_id
+      ),
+      delete_link_text="Delete this folder") }}
+  {% endcall %}
 
 {% endblock %}

tests/app/main/views/test_template_folders.py

@@ -367,7 +367,7 @@ def test_get_manage_folder_page(
     assert normalize_spaces(page.select_one('title').text) == (
         'folder_two – Templates – service one – GOV.UK Notify'
     )
-    assert page.select_one('input[name=name]') is not None
+    assert page.select_one('input[name=name]')['value'] == 'folder_two'
     delete_link = page.find('a', string="Delete this folder")
     expected_delete_url = "/services/{}/templates/folders/{}/delete".format(service_one['id'], folder_id)
 
@@ -443,9 +443,20 @@ def test_delete_template_folder_should_request_confirmation(
         'Yes, delete'
     )
 
-    assert len(page.select('label')) == 0
-    assert len(page.select('button')) == 1
-    assert "Back to manage folder page" in page.text
+    assert page.select_one('input[name=name]')['value'] == 'sacrifice'
+
+    assert len(page.select('form')) == 2
+    assert len(page.select('button')) == 2
+
+    assert 'action' not in page.select('form')[0]
+    assert page.select('form button')[0].text == 'Yes, delete'
+
+    assert page.select('form')[1]['action'] == url_for(
+        'main.manage_template_folder',
+        service_id=service_one['id'],
+        template_folder_id=folder_id,
+    )
+    assert page.select('form button')[1].text == 'Save'
 
 
 def test_delete_template_folder_should_detect_non_empty_folder_on_get(