Import from other channels search optimized

Makefile

@@ -31,7 +31,7 @@ learningactivities:
 
 set-tsvectors:
 	python contentcuration/manage.py set_channel_tsvectors
-	python contentcuration/manage.py set_contentnode_tsvectors
+	python contentcuration/manage.py set_contentnode_tsvectors --published
 
 ###############################################################
 # END PRODUCTION COMMANDS #####################################

contentcuration/contentcuration/debug_panel_settings.py

@@ -1,8 +1,13 @@
 from .dev_settings import *  # noqa
 
-# These endpoints will throw an error on the django debug panel
+# These endpoints will throw an error on the django debug panel.
 EXCLUDED_DEBUG_URLS = [
     "/content/storage",
+
+    # Disabling sync API because as soon as the sync API gets polled
+    # the current request data gets overwritten.
+    # Can be removed after websockets deployment.
+    "/api/sync",
 ]
 
 DEBUG_PANEL_ACTIVE = True
@@ -14,10 +19,10 @@ def custom_show_toolbar(request):
     )  # noqa F405
 
 
-# if debug_panel exists, add it to our INSTALLED_APPS
+# if debug_panel exists, add it to our INSTALLED_APPS.
 INSTALLED_APPS += ("debug_panel", "debug_toolbar", "pympler")  # noqa F405
 MIDDLEWARE += (  # noqa F405
-    "contentcuration.debug.middleware.CustomDebugPanelMiddleware",
+    "debug_toolbar.middleware.DebugToolbarMiddleware",
 )
 DEBUG_TOOLBAR_CONFIG = {
     "SHOW_TOOLBAR_CALLBACK": custom_show_toolbar,

contentcuration/contentcuration/frontend/channelEdit/views/ImportFromChannels/BrowsingCard.vue

@@ -149,7 +149,7 @@
         if (this.isTopic) {
           return `${baseUrl}#/${this.node.id}`;
         }
-        return `${baseUrl}#/${this.node.parent}/${this.node.id}`;
+        return `${baseUrl}#/${this.node.parent_id}/${this.node.id}`;
       },
       resourcesMsg() {
         let count;
@@ -160,13 +160,8 @@
         }
         return this.$tr('resourcesCount', { count });
       },
-      numLocations() {
-        return this.node.location_ids.length;
-      },
       goToLocationLabel() {
-        return this.numLocations > 1
-          ? this.$tr('goToPluralLocationsAction', { count: this.numLocations })
-          : this.$tr('goToSingleLocationAction');
+        return this.$tr('goToSingleLocationAction');
       },
       isTopic() {
         return this.node.kind === ContentKindsNames.TOPIC;
@@ -189,8 +184,6 @@
     $trs: {
       tagsList: 'Tags: {tags}',
       goToSingleLocationAction: 'Go to location',
-      goToPluralLocationsAction:
-        'In {count, number} {count, plural, one {location} other {locations}}',
       addToClipboardAction: 'Copy to clipboard',
       resourcesCount: '{count, number} {count, plural, one {resource} other {resources}}',
       coach: 'Resource for coaches',

contentcuration/contentcuration/frontend/channelEdit/views/ImportFromChannels/ChannelList.vue

@@ -112,6 +112,7 @@
           [this.channelFilter]: true,
           page: this.$route.query.page || 1,
           exclude: this.currentChannelId,
+          published: true,
         }).then(page => {
           this.pageCount = page.total_pages;
           this.channels = page.results;

contentcuration/contentcuration/tests/helpers.py

@@ -2,7 +2,9 @@
 from importlib import import_module
 
 import mock
+from search.models import ContentNodeFullTextSearch
 
+from contentcuration.models import ContentNode
 from contentcuration.models import TaskResult
 
 
@@ -39,6 +41,12 @@ def mock_class_instance(target):
     else:
         target_cls = target
 
+    # ContentNode's node_fts field can be handled by Django when tests
+    # access the database but we mock it so that we don't need to query
+    # the database. By doing so we get faster test execution.
+    if type(target_cls) is ContentNode:
+        target_cls.node_fts = ContentNodeFullTextSearch()
+
     class MockClass(target_cls):
         def __new__(cls, *args, **kwargs):
             return mock.Mock(spec_set=cls)

contentcuration/contentcuration/tests/utils/test_cache.py

@@ -1,15 +1,14 @@
 import mock
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from ..helpers import mock_class_instance
-from contentcuration.models import ContentNode
 from contentcuration.utils.cache import ResourceSizeCache
 
 
-class ResourceSizeCacheTestCase(TestCase):
+class ResourceSizeCacheTestCase(SimpleTestCase):
     def setUp(self):
         super(ResourceSizeCacheTestCase, self).setUp()
-        self.node = mock.Mock(spec_set=ContentNode())
+        self.node = mock_class_instance("contentcuration.models.ContentNode")
         self.node.pk = "abcdefghijklmnopqrstuvwxyz"
         self.redis_client = mock_class_instance("redis.client.StrictRedis")
         self.cache_client = mock_class_instance("django_redis.client.DefaultClient")

contentcuration/contentcuration/tests/utils/test_nodes.py

@@ -6,10 +6,10 @@
 from dateutil.parser import isoparse
 from django.db.models import F
 from django.db.models import Max
-from django.test import TestCase
+from django.test import SimpleTestCase
 
 from ..base import StudioTestCase
-from contentcuration.models import ContentNode
+from contentcuration.tests.helpers import mock_class_instance
 from contentcuration.utils.nodes import calculate_resource_size
 from contentcuration.utils.nodes import ResourceSizeHelper
 from contentcuration.utils.nodes import SlowCalculationError
@@ -42,10 +42,10 @@ def test_modified_since(self):
 
 @mock.patch("contentcuration.utils.nodes.ResourceSizeHelper")
 @mock.patch("contentcuration.utils.nodes.ResourceSizeCache")
-class CalculateResourceSizeTestCase(TestCase):
+class CalculateResourceSizeTestCase(SimpleTestCase):
     def setUp(self):
         super(CalculateResourceSizeTestCase, self).setUp()
-        self.node = mock.Mock(spec_set=ContentNode())
+        self.node = mock_class_instance("contentcuration.models.ContentNode")
 
     def assertCalculation(self, cache, helper, force=False):
         helper().get_size.return_value = 456

contentcuration/contentcuration/utils/publish.py

@@ -18,8 +18,11 @@
 from django.core.files.storage import default_storage as storage
 from django.core.management import call_command
 from django.db.models import Count
+from django.db.models import Exists
 from django.db.models import Max
+from django.db.models import OuterRef
 from django.db.models import Q
+from django.db.models import Subquery
 from django.db.models import Sum
 from django.db.utils import IntegrityError
 from django.template.loader import render_to_string
@@ -37,6 +40,10 @@
 from le_utils.constants import roles
 from past.builtins import basestring
 from past.utils import old_div
+from search.models import ChannelFullTextSearch
+from search.models import ContentNodeFullTextSearch
+from search.utils import get_fts_annotated_channel_qs
+from search.utils import get_fts_annotated_contentnode_qs
 
 from contentcuration import models as ccmodels
 from contentcuration.decorators import delay_user_storage_calculation
@@ -808,6 +815,50 @@ def fill_published_fields(channel, version_notes):
     channel.save()
 
 
+def sync_contentnode_and_channel_tsvectors(channel_id):
+    """
+    Creates, deletes and updates tsvectors of the channel and all its content nodes
+    to reflect the current state of channel's main tree.
+    """
+    # Update or create channel tsvector entry.
+    logging.info("Setting tsvector for channel with id {}.".format(channel_id))
+
+    channel = (get_fts_annotated_channel_qs()
+               .values("keywords_tsvector", "main_tree__tree_id")
+               .get(pk=channel_id))
+
+    obj, is_created = ChannelFullTextSearch.objects.update_or_create(channel_id=channel_id, defaults={"keywords_tsvector": channel["keywords_tsvector"]})
+    del obj
+
+    if is_created:
+        logging.info("Created 1 channel tsvector.")
+    else:
+        logging.info("Updated 1 channel tsvector.")
+
+    # Update or create contentnodes tsvector entry for channel_id.
+    logging.info("Setting tsvectors for all main tree contentnodes in channel {}.".format(channel_id))
+
+    if ContentNodeFullTextSearch.objects.filter(channel_id=channel_id).exists():
+        # First, delete nodes that are no longer in main_tree.
+        nodes_no_longer_in_main_tree = ~Exists(ccmodels.ContentNode.objects.filter(id=OuterRef("contentnode_id"), tree_id=channel["main_tree__tree_id"]))
+        ContentNodeFullTextSearch.objects.filter(nodes_no_longer_in_main_tree, channel_id=channel_id).delete()
+
+        # Now, all remaining nodes are in main_tree, so let's update them.
+        # Update only changed nodes.
+        node_tsv_subquery = get_fts_annotated_contentnode_qs(channel_id).filter(id=OuterRef("contentnode_id")).order_by()
+        ContentNodeFullTextSearch.objects.filter(channel_id=channel_id, contentnode__complete=True, contentnode__changed=True).update(
+            keywords_tsvector=Subquery(node_tsv_subquery.values("keywords_tsvector")[:1]),
+            author_tsvector=Subquery(node_tsv_subquery.values("author_tsvector")[:1])
+        )
+
+    # Insert newly created nodes.
+    # "set_contentnode_tsvectors" command is defined in "search/management/commands" directory.
+    call_command("set_contentnode_tsvectors",
+                 "--channel-id={}".format(channel_id),
+                 "--tree-id={}".format(channel["main_tree__tree_id"]),
+                 "--complete")
+
+
 @delay_user_storage_calculation
 def publish_channel(
     user_id,
@@ -829,8 +880,9 @@ def publish_channel(
         set_channel_icon_encoding(channel)
         kolibri_temp_db = create_content_database(channel, force, user_id, force_exercises, progress_tracker=progress_tracker)
         increment_channel_version(channel)
-        mark_all_nodes_as_published(channel)
         add_tokens_to_channel(channel)
+        sync_contentnode_and_channel_tsvectors(channel_id=channel.id)
+        mark_all_nodes_as_published(channel)
         fill_published_fields(channel, version_notes)
 
         # Attributes not getting set for some reason, so just save it here

contentcuration/contentcuration/viewsets/channel.py

@@ -24,6 +24,9 @@
 from rest_framework.serializers import CharField
 from rest_framework.serializers import FloatField
 from rest_framework.serializers import IntegerField
+from search.models import ChannelFullTextSearch
+from search.models import ContentNodeFullTextSearch
+from search.utils import get_fts_search_query
 
 from contentcuration.decorators import cache_no_user_data
 from contentcuration.models import Change
@@ -119,23 +122,15 @@ def filter_deleted(self, queryset, name, value):
         return queryset.filter(deleted=value)
 
     def filter_keywords(self, queryset, name, value):
-        # TODO: Wait until we show more metadata on cards to add this back in
-        # keywords_query = self.main_tree_query.filter(
-        #     Q(tags__tag_name__icontains=value)
-        #     | Q(author__icontains=value)
-        #     | Q(aggregator__icontains=value)
-        #     | Q(provider__icontains=value)
-        # )
-        return queryset.annotate(
-            # keyword_match_count=SQCount(keywords_query, field="content_id"),
-            primary_token=primary_token_subquery,
-        ).filter(
-            Q(name__icontains=value)
-            | Q(description__icontains=value)
-            | Q(pk__istartswith=value)
-            | Q(primary_token=value.replace("-", ""))
-            # | Q(keyword_match_count__gt=0)
-        )
+        search_query = get_fts_search_query(value)
+        dash_replaced_search_query = get_fts_search_query(value.replace("-", ""))
+
+        channel_keywords_query = (Exists(ChannelFullTextSearch.objects.filter(
+            Q(keywords_tsvector=search_query) | Q(keywords_tsvector=dash_replaced_search_query), channel_id=OuterRef("id"))))
+        contentnode_search_query = (Exists(ContentNodeFullTextSearch.objects.filter(
+            Q(keywords_tsvector=search_query) | Q(author_tsvector=search_query), channel_id=OuterRef("id"))))
+
+        return queryset.filter(Q(channel_keywords_query) | Q(contentnode_search_query))
 
     def filter_languages(self, queryset, name, value):
         languages = value.split(",")

contentcuration/search/management/commands/set_channel_tsvectors.py

@@ -7,11 +7,8 @@
 from django.core.management.base import BaseCommand
 from django.db.models import Exists
 from django.db.models import OuterRef
-from search.constants import CHANNEL_KEYWORDS_TSVECTOR
 from search.models import ChannelFullTextSearch
-
-from contentcuration.models import Channel
-from contentcuration.viewsets.channel import primary_token_subquery
+from search.utils import get_fts_annotated_channel_qs
 
 
 logmodule.basicConfig(level=logmodule.INFO)
@@ -27,10 +24,8 @@ def handle(self, *args, **options):
 
         channel_not_already_inserted_query = ~Exists(ChannelFullTextSearch.objects.filter(channel_id=OuterRef("id")))
 
-        channel_query = (Channel.objects.filter(channel_not_already_inserted_query,
-                                                deleted=False, main_tree__published=True)
-                         .annotate(primary_channel_token=primary_token_subquery,
-                                   keywords_tsvector=CHANNEL_KEYWORDS_TSVECTOR)
+        channel_query = (get_fts_annotated_channel_qs().filter(channel_not_already_inserted_query,
+                                                               deleted=False, main_tree__published=True)
                          .values("id", "keywords_tsvector"))
 
         insertable_channels = list(channel_query[:CHUNKSIZE])