Cookiecutter option to create domain app

The option allows the user to utilize Domain-Driven Design (DDD): If confirmed, a `domain` package will be created in apps dir, and referenced in `./config/settings/base.py`.

cookiecutter.json

@@ -9,6 +9,7 @@
     "timezone": "UTC",
     "use_whitenoise": "y",
     "use_celery": "n",
+    "use_domain_driven_design": "n",
     "use_mailhog": "n",
     "use_sentry_for_error_reporting": "y",
     "use_opbeat": "n",

hooks/post_gen_project.py

@@ -202,6 +202,15 @@ def remove_elasticbeanstalk():
             PROJECT_DIRECTORY, filename
         ))
 
+def remove_domain_app(project_directory):
+    """Removes the domain app if Domain-Driven Design (DDD) isn't going to be used."""
+    # Determine the local_setting_file_location
+    domain_app_location = os.path.join(
+        PROJECT_DIRECTORY,
+        '{{ cookiecutter.project_slug }}/domain'
+    )
+    shutil.rmtree(domain_app_location)
+
 # IN PROGRESS
 # def copy_doc_files(project_directory):
 #     cookiecutters_dir = DEFAULT_CONFIG['cookiecutters_dir']
@@ -284,3 +293,7 @@ if '{{ cookiecutter.open_source_license}}' != 'GPLv3':
 # 12. Remove Elastic Beanstalk files
 if '{{ cookiecutter.use_elasticbeanstalk_experimental }}'.lower() != 'y':
     remove_elasticbeanstalk()
+
+# 13. Removes the domain app if Domain-Driven Design (DDD) isn't going to be used.
+if '{{ cookiecutter.use_domain_driven_design }}'.lower() == 'n':
+    remove_domain_app(PROJECT_DIRECTORY)

{{cookiecutter.project_slug}}/config/settings/base.py

@@ -57,7 +57,8 @@ THIRD_PARTY_APPS = [
 # Apps specific for this project go here.
 LOCAL_APPS = [
     # custom users app
-    '{{ cookiecutter.project_slug }}.users.apps.UsersConfig',
+    '{{ cookiecutter.project_slug }}.users.apps.UsersConfig',{% if cookiecutter.use_domain_driven_design == 'y' %}
+    '{{ cookiecutter.project_slug }}.domain.apps.DomainConfig',{% endif %}
     # Your stuff: custom apps go here
 ]
 

{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/domain/apps.py

@@ -0,0 +1,13 @@
+from django.apps import AppConfig
+
+
+class DomainConfig(AppConfig):
+    name = '{{cookiecutter.project_slug}}.domain'
+    verbose_name = "Domain"
+
+    def ready(self):
+        """Override this to put in:
+            Users system checks
+            Users signal registration
+        """
+        pass