added music search, major improvements on file search

akarpov/files/documents.py

@@ -1,4 +1,4 @@
-from django_elasticsearch_dsl import Document
+from django_elasticsearch_dsl import Document, fields
 from django_elasticsearch_dsl.registries import registry
 
 from akarpov.files.models import File
@@ -6,26 +6,41 @@
 
 @registry.register_document
 class FileDocument(Document):
-    class Index:
-        name = "files"
-        settings = {"number_of_shards": 1, "number_of_replicas": 0}
+    name = fields.TextField(
+        attr="name",
+        fields={
+            "raw": fields.KeywordField(normalizer="lowercase"),
+        },
+    )
+
+    description = fields.TextField(
+        attr="description",
+        fields={
+            "raw": fields.KeywordField(normalizer="lowercase"),
+        },
+    )
+
+    content = fields.TextField(
+        attr="content",
+        fields={
+            "raw": fields.KeywordField(normalizer="lowercase"),
+        },
+    )
 
     class Django:
         model = File
-        fields = [
-            "name",
-            "description",
-            "content",
-        ]
 
     def prepare_description(self, instance):
-        # This method is called for every instance before indexing
         return instance.description or ""
 
     def prepare_content(self, instance):
-        # This method is called for every instance before indexing
+        # check instance.content is not None
         return (
             instance.content.decode("utf-8")
-            if isinstance(instance.content, bytes)
-            else instance.content
+            if instance.content and isinstance(instance.content, bytes)
+            else ""
         )
+
+    class Index:
+        name = "files"
+        settings = {"number_of_shards": 1, "number_of_replicas": 0}

akarpov/files/services/search.py

@@ -40,13 +40,16 @@ def search(self, query: str):
                 ES_Q(
                     "multi_match",
                     query=query,
-                    fields=["name", "description", "content"],
+                    fields=["name^3", "description^2", "content"],
                     type="best_fields",
+                    fuzziness="AUTO",
                 ),
-                ES_Q("match_phrase_prefix", name=query),
-                ES_Q("wildcard", name=f"*{query}*"),
-                ES_Q("wildcard", description=f"*{query}*"),
-                ES_Q("wildcard", content=f"*{query}*"),
+                ES_Q("wildcard", name__raw=f"*{query.lower()}*"),
+                ES_Q("wildcard", description__raw=f"*{query.lower()}*"),
+                ES_Q("wildcard", content__raw=f"*{query.lower()}*"),
+                ES_Q("wildcard", file_type__raw=f"*{query.lower()}*"),
+                ES_Q("wildcard", file_obj__raw=f"*{query.lower()}*"),
+                ES_Q("wildcard", preview__raw=f"*{query.lower()}*"),
             ],
             minimum_should_match=1,
         )

akarpov/music/api/views.py

@@ -25,6 +25,7 @@
     SongUserRating,
     UserListenHistory,
 )
+from akarpov.music.services.search import search_song
 from akarpov.music.tasks import listen_to_song
 
 
@@ -83,7 +84,11 @@ class ListCreateSongAPIView(LikedSongsContextMixin, generics.ListCreateAPIView):
     pagination_class = StandardResultsSetPagination
 
     def get_queryset(self):
-        qs = Song.objects.cache()
+        search = self.request.query_params.get("search", None)
+        if search:
+            qs = search_song(search)
+        else:
+            qs = Song.objects.cache()
 
         if "sort" in self.request.query_params:
             sorts = self.request.query_params["sort"].split(",")
@@ -111,6 +116,12 @@ def get_queryset(self):
 
     @extend_schema(
         parameters=[
+            OpenApiParameter(
+                name="search",
+                description="Search query",
+                required=False,
+                type=str,
+            ),
             OpenApiParameter(
                 name="sort",
                 description="Sorting algorithm",

akarpov/music/documents.py

@@ -0,0 +1,67 @@
+from django_elasticsearch_dsl import Document, fields
+from django_elasticsearch_dsl.registries import registry
+
+from akarpov.music.models import Song
+
+
+@registry.register_document
+class SongDocument(Document):
+    authors = fields.NestedField(
+        attr="authors",
+        properties={
+            "name": fields.TextField(
+                fields={
+                    "raw": fields.KeywordField(normalizer="lowercase"),
+                },
+            ),
+            "link": fields.TextField(),
+            "meta": fields.ObjectField(dynamic=True),
+        },
+    )
+
+    album = fields.NestedField(
+        attr="album",
+        properties={
+            "name": fields.TextField(
+                fields={
+                    "raw": fields.KeywordField(normalizer="lowercase"),
+                },
+            ),
+            "link": fields.TextField(),
+            "meta": fields.ObjectField(dynamic=True),
+        },
+    )
+
+    name = fields.TextField(
+        attr="name",
+        fields={
+            "raw": fields.KeywordField(normalizer="lowercase"),
+        },
+    )
+
+    meta = fields.ObjectField(dynamic=True)  # Added meta field here as dynamic object
+
+    class Index:
+        name = "songs"
+        settings = {"number_of_shards": 1, "number_of_replicas": 0}
+        # settings = {
+        #     "number_of_shards": 1,
+        #     "number_of_replicas": 0,
+        #     "analysis": {
+        #         "analyzer": {
+        #             "russian_icu": {
+        #                 "type": "custom",
+        #                 "tokenizer": "icu_tokenizer",
+        #                 "filter": ["icu_folding","icu_normalizer"]
+        #             }
+        #         }
+        #     }
+        # } TODO
+
+    class Django:
+        model = Song
+
+    def get_instances_from_related(self, related_instance):
+        if isinstance(related_instance, Song):
+            return related_instance.album
+        return related_instance.songs.all()

akarpov/music/services/search.py

@@ -0,0 +1,47 @@
+from django.db.models import Case, When
+from elasticsearch_dsl import Q as ES_Q
+
+from akarpov.music.documents import SongDocument
+from akarpov.music.models import Song
+
+
+def search_song(query):
+    search = SongDocument.search()
+    search_query = ES_Q(
+        "bool",
+        should=[
+            ES_Q(
+                "multi_match",
+                query=query,
+                fields=["name^3", "authors.name^2", "album.name"],
+                fuzziness="AUTO",
+            ),  # Change here
+            ES_Q("wildcard", name__raw=f"*{query.lower()}*"),
+            ES_Q(
+                "nested",
+                path="authors",
+                query=ES_Q("wildcard", authors__name__raw=f"*{query.lower()}*"),
+            ),
+            ES_Q(
+                "nested",
+                path="album",
+                query=ES_Q("wildcard", album__name__raw=f"*{query.lower()}*"),
+            ),
+        ],
+        minimum_should_match=1,
+    )
+
+    search = search.query(search_query)
+
+    response = search.execute()
+
+    # Check for hits and get song instances
+    if response.hits:
+        hit_ids = [hit.meta.id for hit in response.hits]
+        songs = Song.objects.filter(id__in=hit_ids).order_by(
+            Case(*[When(pk=pk, then=pos) for pos, pk in enumerate(hit_ids)])
+        )
+
+        return songs
+
+    return Song.objects.none()