add STATIC_URL and MEDIA_URL to common settings

oser_backend/oser_backend/settings/common.py

@@ -187,6 +187,9 @@ USE_TZ = True
 
 # Static files (CSS, JavaScript, Images) and media files (user-uploaded)
 
+STATIC_URL = '/static/'
+MEDIA_URL = '/media/'
+
 # Celery settings
 
 CELERY_BROKER_URL = os.environ.get('REDIS_URL', 'redis://localhost:6379')

oser_backend/oser_backend/settings/dev.py

@@ -15,7 +15,6 @@ ALLOWED_HOSTS = ['localhost']
 
 # Static files config
 STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.StaticFilesStorage'
-STATIC_URL = '/static/'
 STATICFILES_DIRS = [
     os.path.join(BASE_DIR, 'staticfiles'),
 ]
@@ -23,5 +22,4 @@ STATIC_ROOT = os.path.join(BASE_DIR, 'static')
 
 # Media files config
 DEFAULT_FILE_STORAGE = 'django.core.files.storage.FileSystemStorage'
-MEDIA_URL = '/media/'
 MEDIA_ROOT = os.path.join(BASE_DIR, 'media')