Solr 9

DEVELOPERS.md

@@ -144,7 +144,7 @@ If a new search engine backend class is to be implemented, it must closely follo
 utils.search.SearchEngineBase docstrings. There is a Django management command that can be used in order to test
 the implementation of a search backend. You can run it like:
 
-    docker-compose run --rm web python manage.py test_search_engine_backend -fsw --backend utils.search.backends.solr451custom.Solr451CustomSearchEngine
+    docker-compose run --rm web python manage.py test_search_engine_backend -fsw --backend utils.search.backends.solr9pysolr.Solr9PySolrSearchEngine
 
 Please read carefully the documentation of the management command to better understand how it works and how is it
 doing the testing.

docker-compose.yml

@@ -4,6 +4,7 @@ volumes:
     pgdata:
     m2home:
     solr5data:
+    solr9data:
     fswebhome:
 
 services:
@@ -52,11 +53,22 @@ services:
         image: solr:5.5.5
         volumes:
             - solr5data:/opt/solr/server/solr/mycores
-            - ./utils/search/solr5.5.5/cores:/cores
+            - ./utils/search/solr5.5.5/cores:/opt/solr/server/solr/configsets/
             - ./utils/search/solr5.5.5/docker-entrypoint:/docker-entrypoint-initdb.d
         ports:
             - "${FS_BIND_HOST:-127.0.0.1}:${LOCAL_PORT_PREFIX}8983:8983"
 
+    solr9:
+        build:
+            context: ./
+            dockerfile: ./docker/Dockerfile.solr
+        volumes:
+            - ./utils/search/solr9/cores:/var/solr/data/configsets
+            - solr9data:/var/solr
+            - ./utils/search/solr9/docker-entrypoint:/docker-entrypoint-initdb.d
+        ports:
+            - "${FS_BIND_HOST:-127.0.0.1}:${LOCAL_PORT_PREFIX}8984:8983"
+
     # Redis (caches)
     redis:
         image: redis:alpine

docker/Dockerfile.solr

@@ -0,0 +1,21 @@
+# Freesound development solr image
+
+# This file is needed to fix file permission issues when running solr in docker.
+# 
+# In our test_search_engine_backend command, we use the solr API to create a core from a configSet
+# In order to use this API, configSets must be available at $SOLR_HOME/configsets
+# however, the official solr Dockerfile defines $SOLR_HOME as /var/solr/data, but only creates /var/solr 
+# in the Dockerfile.
+# When mounting ./utils/search/solr9/cores:/var/solr/data/configsets as a volume in docker-compose.yml,
+# docker will create any non-existent directories with an owner of root.
+# In this case, /var/solr/data/ doesn't yet exist so it gets created as owned by root when mounting
+# configSets as /var/solr/data/configsets in the container.
+# This means that the precreate-core script (running as the solr user, uid 8983) is unable to write a new core to
+# the data directory, as it's owned by root.
+# 
+# By creating /var/solr/data ahead of time owned by the solr user, docker won't set the owner to root, allowing
+# the setup scripts to work and configSets to be used.
+
+FROM solr:9.2.1
+
+RUN mkdir /var/solr/data

forum/models.py

@@ -87,6 +87,14 @@ def forum_pre_save_set_slug(sender, instance, **kwargs):
         instance.name_slug = slugify(instance.name)
 
 
+@receiver(pre_save, sender=Forum)
+def forum_pre_save_set_slug(sender, instance, **kwargs):
+    """If a forum has a name set but not a slug, automatically generate the slug
+    """
+    if not instance.id and not instance.name_slug:
+        instance.name_slug = slugify(instance.name)
+
+
 class Thread(models.Model):
     forum = models.ForeignKey(Forum, on_delete=models.CASCADE)
     author = models.ForeignKey(User, on_delete=models.CASCADE)

freesound/settings.py

@@ -618,9 +618,8 @@
 SEARCH_FORUM_SORT_DEFAULT = SEARCH_FORUM_SORT_OPTION_THREAD_DATE_FIRST
 
 SEARCH_ENGINE_BACKEND_CLASS = 'utils.search.backends.solr555pysolr.Solr555PySolrSearchEngine'
-SOLR5_SOUNDS_URL = "http://search:8983/solr/freesound/"
-SOLR5_FORUM_URL = "http://search:8983/solr/forum/"
-
+SOLR5_BASE_URL = "http://search:8983/solr"
+SOLR9_BASE_URL = "http://solr9:8983/solr"
 
 # -------------------------------------------------------------------------------
 # Similarity client settings

search/management/commands/reindex_search_engine_forum.py

@@ -71,6 +71,6 @@ def handle(self, *args, **options):
         # passed, this bit of code should remove no posts.
         indexed_post_ids = get_all_post_ids_from_search_engine()
         post_ids_to_delete = list(set(indexed_post_ids).difference(all_posts.values_list('id', flat=True)))
-        console_logger.info("Deleting %d non-existing posts form the search engine", len(post_ids_to_delete))
+        console_logger.info("Deleting %d non-existing posts from the search engine", len(post_ids_to_delete))
         if post_ids_to_delete:
             delete_posts_from_search_engine(post_ids_to_delete)

search/management/commands/reindex_search_engine_sounds.py

@@ -54,7 +54,6 @@ def add_arguments(self, parser):
     def handle(self, *args, **options):
         # Get all indexed sound IDs and remove them
         clear_index = options['clear_index']
-        indexed_sound_ids = None
         if clear_index:
             delete_all_sounds_from_search_engine()
 
@@ -68,9 +67,8 @@ def handle(self, *args, **options):
         # Delete all sounds in the search engine which are not found in the DB. This part of code is to make sure that
         # no "leftover" sounds remain in the search engine, but should normally do nothing, specially if the
         # "clear_index" option is passed
-        if indexed_sound_ids is None:
-            indexed_sound_ids = get_all_sound_ids_from_search_engine()
+        indexed_sound_ids = get_all_sound_ids_from_search_engine()
         sound_ids_to_delete = list(set(indexed_sound_ids).difference(sounds_to_index_ids))
-        console_logger.info("Deleting %d non-existing sounds form the search engine", len(sound_ids_to_delete))
+        console_logger.info("Deleting %d non-existing sounds from the search engine", len(sound_ids_to_delete))
         if sound_ids_to_delete:
             delete_sounds_from_search_engine(sound_ids_to_delete)

search/management/commands/test_search_engine_backend.py

@@ -22,6 +22,7 @@
 
 from django.conf import settings
 from django.core.management.base import BaseCommand
+import requests
 
 from utils.search import get_search_engine
 from utils.search.backends.test_search_engine_backend import TestSearchEngineBackend
@@ -34,10 +35,30 @@
 global_output_file = None
 
 
+def core_exists(solr_base_url, core_name):
+    r = requests.get(f'{solr_base_url}/admin/cores?action=STATUS&core={core_name}')
+    r.raise_for_status()
+    try:
+        status = r.json()
+        return status['status'][core_name] != {}
+    except ValueError:
+        # Solr 5 returns xml. "Empty list" means that the core does not exist
+        return f"""<lst name="{core_name}"/></lst>""" not in r.text
+
+
+def create_core(solr_base_url, core_name, configSet, delete_core=False):
+    if core_exists(solr_base_url, core_name):
+        if delete_core:
+            requests.get(f'{solr_base_url}/admin/cores?action=UNLOAD&core={core_name}&deleteInstanceDir=true')
+        else:
+            raise Exception(f"Core {core_name} already exists, use --force to delete it.")
+    requests.get(f'{solr_base_url}/admin/cores?action=CREATE&name={core_name}&configSet={configSet}')
+
+
 class Command(BaseCommand):
-    help = 'Test a search engine backend and output test results. To run these tests, a search engine backend is' \
-           'expected to be running with some sounds/forum posts indexed in accordance to Sound and Post objects' \
-           'from the database. The Freesound development data will work nicely with these tests. After running the' \
+    help = 'Test a search engine backend and output test results. To run these tests, a search engine backend is ' \
+           'expected to be running. A new core is created for these tests and is populated with some with some ' \
+           'sounds/forum posts. The Freesound development data will work nicely with these tests. After running the' \
            'tests, DB contents will not be changed, but it could happen that the search engine index is not left' \
            'in the exact same state. Therefore, this command SHOULD NOT be run in a production database.' \
            '' \
@@ -53,7 +74,14 @@ def add_arguments(self, parser):
             action='store',
             dest='backend_class',
             default=settings.SEARCH_ENGINE_BACKEND_CLASS,
-            help='Path to the backend class to test, eg: utils.search.backends.solr451custom.Solr451CustomSearchEngine')
+            help='Path to the backend class to test, eg: utils.search.backends.solr9pysolr.Solr9PySolrSearchEngine')
+
+        parser.add_argument(
+            '--force',
+            action='store_true',
+            dest='force_create_core',
+            default=False,
+            help='Test sound-related methods of the SearchEngine')
 
         parser.add_argument(
             '-s', '--sound_methods',
@@ -79,29 +107,38 @@ def add_arguments(self, parser):
     def handle(self, *args, **options):
 
         if not settings.DEBUG:
-            raise Exception('Running search engine tests in a production deployment. This should not be done as'
-                            'running these tests will modify the contents of the production search engine index'
+            raise Exception('Running search engine tests in a production deployment. This should not be done as '
+                            'running these tests will modify the contents of the production search engine index '
                             'and leave it in a "wrong" state.')
 
         # Instantiate search engine
         try:
-            search_engine = get_search_engine(backend_class=options['backend_class'])
+            search_engine = get_search_engine(
+                backend_class=options['backend_class']
+            )
         except ValueError:
             raise Exception('Wrong backend name format. Should be a path like '
-                            'utils.search.backends.solr451custom.Solr451CustomSearchEngine')
+                            'utils.search.backends.solr9pysolr.Solr9PySolrSearchEngine')
         except ImportError as e:
             raise Exception(f'Backend class to test could not be imported: {e}')
 
         console_logger.info(f"Testing search engine backend: {options['backend_class']}")
         backend_name = options['backend_class']
         write_output = options['write_output']
 
+        # Create the engine above to get the base url for that engine and check that the given class exists.
+        # Then create temporary cores using this base url and re-create the engine with these core urls.
+        create_core(search_engine.solr_base_url, "engine_test_freesound", "freesound", delete_core=options['force_create_core'])
+        create_core(search_engine.solr_base_url, "engine_test_forum", "forum", delete_core=options['force_create_core'])
+        sounds_index_url = f'{search_engine.solr_base_url}/engine_test_freesound'
+        forum_index_url = f'{search_engine.solr_base_url}/engine_test_forum'
+
         if not options['sound_methods'] and not options['forum_methods']:
             console_logger.info('None of sound methods or forum methods were selected, so nothing will be tested. '
                                 'Use the -s, -f or both options to test sound and/or forum methods.')
 
 
-        backend_test = TestSearchEngineBackend(backend_name, write_output)
+        backend_test = TestSearchEngineBackend(backend_name, write_output, sounds_index_url=sounds_index_url, forum_index_url=forum_index_url)
         if options['sound_methods']:
             backend_test.test_search_enginge_backend_sounds()
 

utils/search/__init__.py

@@ -23,18 +23,20 @@
 from django.conf import settings
 
 
-def get_search_engine(backend_class=settings.SEARCH_ENGINE_BACKEND_CLASS):
+def get_search_engine(backend_class=settings.SEARCH_ENGINE_BACKEND_CLASS, sounds_index_url=None, forum_index_url=None):
     """Return SearchEngine class instance to carry out search engine actions
 
     Args:
         backend_class: path to the search engine backend class (defaults to settings.SEARCH_ENGINE_BACKEND_CLASS)
+        sounds_index_url: url of the sounds index in solr. If not set, use the default URL for the backend
+        forum_index_url: url of the forum index in solr. If not set, use the default URL for the backend
 
     Returns:
         utils.search.SearchEngineBase: search engine backend class instance
     """
     module_name, class_name = backend_class.rsplit('.', 1)
     module = importlib.import_module(module_name)
-    return getattr(module, class_name)()
+    return getattr(module, class_name)(sounds_index_url, forum_index_url)
 
 
 class SearchResults: