django-haystack

import os from django.conf import settings # Minimal Django settings configuration required for Haystack's imports # and internal mechanisms to initialize. if not settings.configured: settings.configure( INSTALLED_APPS=[ 'haystack', # 'your_app_with_models_and_search_indexes', # Add your app here in a real project ], BASE_DIR=os.path.dirname(os.path.abspath(__file__)), HAYSTACK_CONNECTIONS={ 'default': { 'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine', 'PATH': os.path.join(os.path.dirname(os.path.abspath(__file__)), 'whoosh_index'), } }, SECRET_KEY=os.environ.get('DJANGO_SECRET_KEY', 'a-very-secret-key-for-demo'), DEBUG=True, TIME_ZONE='UTC', USE_TZ=True, DATABASES={'default': {'ENGINE': 'django.db.backends.sqlite3', 'NAME': ':memory:'}} ) # Haystack requires Django apps to be ready to correctly discover indexes import django django.setup() # Now we can import SearchQuerySet from haystack.query import SearchQuerySet # IMPORTANT: In a real Django project, before this code yields results, you would need: # 1. A Django model (e.g., `myapp/models.py`) # 2. A Haystack SearchIndex for your model (e.g., `myapp/search_indexes.py`) # 3. Your app added to INSTALLED_APPS in settings.py # 4. You would have run `./manage.py rebuild_index` to populate the search index. print("Attempting to perform a search query (requires a populated index to show results)...\n") try: # Example 1: Filtering search results # Assumes your SearchIndex has 'content' and 'pub_date' fields. results = SearchQuerySet().filter(content='example').order_by('-pub_date') if results: print(f"Found {len(results)} results for 'example':") for result in results: # result.object would give you the actual Django model instance in a real project print(f" Title: {getattr(result, 'title', 'N/A')}, Content: {getattr(result, 'content', 'N/A')}, Model: {result.model_name}") else: print("No results found for 'example'. (Requires a populated search index.)") # Example 2: Auto-query (searches across the default 'text' field) more_results = SearchQuerySet().auto_query('another note').models('Note').load_all() print(f"\nFound {len(more_results)} results for 'another note' in 'Note' model (auto_query):") for result in more_results: print(f" Title: {getattr(result, 'title', 'N/A')}") except Exception as e: print(f"An error occurred during search: {e}") print("\nTroubleshooting: ") print("1. Ensure you have installed a specific search backend, e.g., `pip install 'django-haystack[whoosh]'`") print("2. Ensure you have run `./manage.py rebuild_index` in your Django project to populate the index.")