chore: Update settings.py for django-admin commands

settings.py

@@ -1,13 +1,20 @@
 """
-To run `PYTHONPATH=$PYTHONPATH:$PWD django-admin.py migrate --settings settings --noinput`.
+To run: env PYTHONPATH=$PWD DJANGO_SETTINGS_MODULE=settings django-admin migrate --noinput
 """
+import os
+
+ci = os.getenv('CI', False)
 
 SECRET_KEY = 'x'
 
 DATABASES = {
     'default': {
         'ENGINE': 'django.contrib.gis.db.backends.postgis',
-        'NAME': 'travis_ci_test',
+        'HOST': 'localhost',
+        'NAME': 'postgres' if ci else 'represent',
+        'USER': 'postgres' if ci else '',
+        'PASSWORD': 'postgres' if ci else '',
+        'PORT': os.getenv('PORT', 5432),
     }
 }
 
@@ -16,6 +23,37 @@
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.gis',
+    'django.contrib.messages',
     'boundaries',
     'postcodes',
+    'representatives',
 )
+
+MIDDLEWARE = [
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+]
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
+if 'GDAL_LIBRARY_PATH' in os.environ:
+    GDAL_LIBRARY_PATH = os.getenv('GDAL_LIBRARY_PATH')
+if 'GEOS_LIBRARY_PATH' in os.environ:
+    GEOS_LIBRARY_PATH = os.getenv('GEOS_LIBRARY_PATH')