- Change update service name to check that the name/email_from is unique across all services.

- This is done using a new endpoint in the api.
- Removed the AddServiceForm in favor or using the ServiceNameForm
- Removed ServiceApiClient.find_all_service_email_from

app/main/views/add_service.py

@@ -14,7 +14,7 @@ from notifications_python_client.errors import HTTPError
 from werkzeug.exceptions import abort
 
 from app.main import main
-from app.main.forms import AddServiceForm
+from app.main.forms import ServiceNameForm
 from app.notify_client.models import InvitedUser
 
 from app import (
@@ -78,7 +78,7 @@ def add_service():
     if not is_gov_user(current_user.email_address):
         abort(403)
 
-    form = AddServiceForm()
+    form = ServiceNameForm()
     heading = 'Which service do you want to set up notifications for?'
 
     if form.validate_on_submit():

app/main/views/service_settings.py

@@ -81,12 +81,16 @@ def service_settings(service_id):
 @login_required
 @user_has_permissions('manage_settings', admin_override=True)
 def service_name_change(service_id):
-    form = ServiceNameForm(service_api_client.find_all_service_email_from)
+    form = ServiceNameForm()
 
     if request.method == 'GET':
         form.name.data = current_service.get('name')
 
     if form.validate_on_submit():
+        unique_name = service_api_client.is_service_name_unique(form.name.data, email_safe(form.name.data))
+        if not unique_name:
+            form.name.errors.append("This service name is already in use")
+            return render_template('views/service-settings/name.html', form=form)
         session['service_name_change'] = form.name.data
         return redirect(url_for('.service_name_change_confirm', service_id=service_id))