feat(app): refactor board record to include image & asset counts and cover image

This _substantially_ reduces the number of queries required to list all boards. A single query now gets one, all, or a page of boards, including counts and cover image name.

- Add helpers to build the queries, which share a common base with some joins.
- Update `BoardRecord` to include the counts.
- Update `BoardDTO`, which is now identical to `BoardRecord`. I opted to not remove `BoardDTO` because it is used in many places.
- Update boards high-level service and board records services accordingly.

invokeai/app/services/board_records/board_records_common.py

@@ -1,11 +1,103 @@
 from datetime import datetime
-from typing import Optional, Union
+from typing import Any, Optional, Union
 
+from attr import dataclass
 from pydantic import BaseModel, Field
 
 from invokeai.app.util.misc import get_iso_timestamp
 from invokeai.app.util.model_exclude_null import BaseModelExcludeNull
 
+# This query is missing a GROUP BY clause, which is required for the query to be valid.
+BASE_UNTERMINATED_AND_MISSING_GROUP_BY_BOARD_RECORDS_QUERY = """
+    SELECT b.board_id,
+        b.board_name,
+        b.created_at,
+        b.updated_at,
+        b.archived,
+        COUNT(
+            CASE
+                WHEN i.image_category in ('general')
+                AND i.is_intermediate = 0 THEN 1
+            END
+        ) AS image_count,
+        COUNT(
+            CASE
+                WHEN i.image_category in ('control', 'mask', 'user', 'other')
+                AND i.is_intermediate = 0 THEN 1
+            END
+        ) AS asset_count,
+        (
+            SELECT bi.image_name
+            FROM board_images bi
+                JOIN images i ON bi.image_name = i.image_name
+            WHERE bi.board_id = b.board_id
+                AND i.is_intermediate = 0
+            ORDER BY i.created_at DESC
+            LIMIT 1
+        ) AS cover_image_name
+    FROM boards b
+        LEFT JOIN board_images bi ON b.board_id = bi.board_id
+        LEFT JOIN images i ON bi.image_name = i.image_name
+    """
+
+
+@dataclass
+class PaginatedBoardRecordsQueries:
+    main_query: str
+    total_count_query: str
+
+
+def get_paginated_list_board_records_query(include_archived: bool) -> PaginatedBoardRecordsQueries:
+    """Gets a query to retrieve a paginated list of board records."""
+
+    archived_condition = "WHERE b.archived = 0" if not include_archived else ""
+
+    # The GROUP BY must be added _after_ the WHERE clause!
+    main_query = f"""
+        {BASE_UNTERMINATED_AND_MISSING_GROUP_BY_BOARD_RECORDS_QUERY}
+        {archived_condition}
+        GROUP BY b.board_id,
+            b.board_name,
+            b.created_at,
+            b.updated_at
+        ORDER BY b.created_at DESC
+        LIMIT ? OFFSET ?;
+        """
+
+    total_count_query = f"""
+        SELECT COUNT(*)
+        FROM boards b
+        {archived_condition};
+        """
+
+    return PaginatedBoardRecordsQueries(main_query=main_query, total_count_query=total_count_query)
+
+
+def get_list_all_board_records_query(include_archived: bool) -> str:
+    """Gets a query to retrieve all board records."""
+
+    archived_condition = "WHERE b.archived = 0" if not include_archived else ""
+
+    # The GROUP BY must be added _after_ the WHERE clause!
+    return f"""
+        {BASE_UNTERMINATED_AND_MISSING_GROUP_BY_BOARD_RECORDS_QUERY}
+        {archived_condition}
+        GROUP BY b.board_id,
+            b.board_name,
+            b.created_at,
+            b.updated_at
+        ORDER BY b.created_at DESC;
+        """
+
+
+def get_board_record_query() -> str:
+    """Gets a query to retrieve a board record."""
+
+    return f"""
+        {BASE_UNTERMINATED_AND_MISSING_GROUP_BY_BOARD_RECORDS_QUERY}
+        WHERE b.board_id = ?;
+        """
+
 
 class BoardRecord(BaseModelExcludeNull):
     """Deserialized board record."""
@@ -26,21 +118,25 @@ class BoardRecord(BaseModelExcludeNull):
     """Whether or not the board is archived."""
     is_private: Optional[bool] = Field(default=None, description="Whether the board is private.")
     """Whether the board is private."""
+    image_count: int = Field(description="The number of images in the board.")
+    asset_count: int = Field(description="The number of assets in the board.")
 
 
-def deserialize_board_record(board_dict: dict) -> BoardRecord:
+def deserialize_board_record(board_dict: dict[str, Any]) -> BoardRecord:
     """Deserializes a board record."""
 
     # Retrieve all the values, setting "reasonable" defaults if they are not present.
 
     board_id = board_dict.get("board_id", "unknown")
     board_name = board_dict.get("board_name", "unknown")
-    cover_image_name = board_dict.get("cover_image_name", "unknown")
+    cover_image_name = board_dict.get("cover_image_name", None)
     created_at = board_dict.get("created_at", get_iso_timestamp())
     updated_at = board_dict.get("updated_at", get_iso_timestamp())
     deleted_at = board_dict.get("deleted_at", get_iso_timestamp())
     archived = board_dict.get("archived", False)
     is_private = board_dict.get("is_private", False)
+    image_count = board_dict.get("image_count", 0)
+    asset_count = board_dict.get("asset_count", 0)
 
     return BoardRecord(
         board_id=board_id,
@@ -51,6 +147,8 @@ def deserialize_board_record(board_dict: dict) -> BoardRecord:
         deleted_at=deleted_at,
         archived=archived,
         is_private=is_private,
+        image_count=image_count,
+        asset_count=asset_count,
     )
 
 
@@ -63,21 +161,21 @@ class BoardChanges(BaseModel, extra="forbid"):
 class BoardRecordNotFoundException(Exception):
     """Raised when an board record is not found."""
 
-    def __init__(self, message="Board record not found"):
+    def __init__(self, message: str = "Board record not found"):
         super().__init__(message)
 
 
 class BoardRecordSaveException(Exception):
     """Raised when an board record cannot be saved."""
 
-    def __init__(self, message="Board record not saved"):
+    def __init__(self, message: str = "Board record not saved"):
         super().__init__(message)
 
 
 class BoardRecordDeleteException(Exception):
     """Raised when an board record cannot be deleted."""
 
-    def __init__(self, message="Board record not deleted"):
+    def __init__(self, message: str = "Board record not deleted"):
         super().__init__(message)
 
 

invokeai/app/services/board_records/board_records_sqlite.py

@@ -11,6 +11,9 @@ from invokeai.app.services.board_records.board_records_common import (
     BoardRecordSaveException,
     UncategorizedImageCounts,
     deserialize_board_record,
+    get_board_record_query,
+    get_list_all_board_records_query,
+    get_paginated_list_board_records_query,
 )
 from invokeai.app.services.shared.pagination import OffsetPaginatedResults
 from invokeai.app.services.shared.sqlite.sqlite_database import SqliteDatabase
@@ -77,11 +80,7 @@ class SqliteBoardRecordStorage(BoardRecordStorageBase):
         try:
             self._lock.acquire()
             self._cursor.execute(
-                """--sql
+                get_board_record_query(),
-                SELECT *
-                FROM boards
-                WHERE board_id = ?;
-                """,
                 (board_id,),
             )
 
@@ -93,7 +92,7 @@ class SqliteBoardRecordStorage(BoardRecordStorageBase):
             self._lock.release()
         if result is None:
             raise BoardRecordNotFoundException
-        return BoardRecord(**dict(result))
+        return deserialize_board_record(dict(result))
 
     def update(
         self,
@@ -150,45 +149,17 @@ class SqliteBoardRecordStorage(BoardRecordStorageBase):
         try:
             self._lock.acquire()
 
-            # Build base query
+            queries = get_paginated_list_board_records_query(include_archived=include_archived)
-            base_query = """
-                SELECT *
-                FROM boards
-                {archived_filter}
-                ORDER BY created_at DESC
-                LIMIT ? OFFSET ?;
-            """
 
-            # Determine archived filter condition
+            self._cursor.execute(
-            if include_archived:
+                queries.main_query,
-                archived_filter = ""
+                (limit, offset),
-            else:
+            )
-                archived_filter = "WHERE archived = 0"
-
-            final_query = base_query.format(archived_filter=archived_filter)
-
-            # Execute query to fetch boards
-            self._cursor.execute(final_query, (limit, offset))
 
             result = cast(list[sqlite3.Row], self._cursor.fetchall())
             boards = [deserialize_board_record(dict(r)) for r in result]
 
-            # Determine count query
+            self._cursor.execute(queries.total_count_query)
-            if include_archived:
-                count_query = """
-                    SELECT COUNT(*)
-                    FROM boards;
-                """
-            else:
-                count_query = """
-                    SELECT COUNT(*)
-                    FROM boards
-                    WHERE archived = 0;
-                """
-
-            # Execute count query
-            self._cursor.execute(count_query)
-
             count = cast(int, self._cursor.fetchone()[0])
 
             return OffsetPaginatedResults[BoardRecord](items=boards, offset=offset, limit=limit, total=count)
@@ -202,26 +173,9 @@ class SqliteBoardRecordStorage(BoardRecordStorageBase):
     def get_all(self, include_archived: bool = False) -> list[BoardRecord]:
         try:
             self._lock.acquire()
-
+            self._cursor.execute(get_list_all_board_records_query(include_archived=include_archived))
-            base_query = """
-                SELECT *
-                FROM boards
-                {archived_filter}
-                ORDER BY created_at DESC
-            """
-
-            if include_archived:
-                archived_filter = ""
-            else:
-                archived_filter = "WHERE archived = 0"
-
-            final_query = base_query.format(archived_filter=archived_filter)
-
-            self._cursor.execute(final_query)
-
             result = cast(list[sqlite3.Row], self._cursor.fetchall())
             boards = [deserialize_board_record(dict(r)) for r in result]
-
             return boards
 
         except sqlite3.Error as e:

invokeai/app/services/boards/boards_common.py

@@ -1,23 +1,8 @@
-from typing import Optional
-
-from pydantic import Field
-
 from invokeai.app.services.board_records.board_records_common import BoardRecord
 
 
+# TODO(psyche): BoardDTO is now identical to BoardRecord. We should consider removing it.
 class BoardDTO(BoardRecord):
-    """Deserialized board record with cover image URL and image count."""
+    """Deserialized board record."""
 
-    cover_image_name: Optional[str] = Field(description="The name of the board's cover image.")
+    pass
-    """The URL of the thumbnail of the most recent image in the board."""
-    image_count: int = Field(description="The number of images in the board.")
-    """The number of images in the board."""
-
-
-def board_record_to_dto(board_record: BoardRecord, cover_image_name: Optional[str], image_count: int) -> BoardDTO:
-    """Converts a board record to a board DTO."""
-    return BoardDTO(
-        **board_record.model_dump(exclude={"cover_image_name"}),
-        cover_image_name=cover_image_name,
-        image_count=image_count,
-    )

invokeai/app/services/boards/boards_default.py

@@ -1,6 +1,6 @@
 from invokeai.app.services.board_records.board_records_common import BoardChanges
 from invokeai.app.services.boards.boards_base import BoardServiceABC
-from invokeai.app.services.boards.boards_common import BoardDTO, board_record_to_dto
+from invokeai.app.services.boards.boards_common import BoardDTO
 from invokeai.app.services.invoker import Invoker
 from invokeai.app.services.shared.pagination import OffsetPaginatedResults
 
@@ -16,17 +16,11 @@ class BoardService(BoardServiceABC):
         board_name: str,
     ) -> BoardDTO:
         board_record = self.__invoker.services.board_records.save(board_name)
-        return board_record_to_dto(board_record, None, 0)
+        return BoardDTO.model_validate(board_record.model_dump())
 
     def get_dto(self, board_id: str) -> BoardDTO:
         board_record = self.__invoker.services.board_records.get(board_id)
-        cover_image = self.__invoker.services.image_records.get_most_recent_image_for_board(board_record.board_id)
+        return BoardDTO.model_validate(board_record.model_dump())
-        if cover_image:
-            cover_image_name = cover_image.image_name
-        else:
-            cover_image_name = None
-        image_count = self.__invoker.services.board_image_records.get_image_count_for_board(board_id)
-        return board_record_to_dto(board_record, cover_image_name, image_count)
 
     def update(
         self,
@@ -34,14 +28,7 @@ class BoardService(BoardServiceABC):
         changes: BoardChanges,
     ) -> BoardDTO:
         board_record = self.__invoker.services.board_records.update(board_id, changes)
-        cover_image = self.__invoker.services.image_records.get_most_recent_image_for_board(board_record.board_id)
+        return BoardDTO.model_validate(board_record.model_dump())
-        if cover_image:
-            cover_image_name = cover_image.image_name
-        else:
-            cover_image_name = None
-
-        image_count = self.__invoker.services.board_image_records.get_image_count_for_board(board_id)
-        return board_record_to_dto(board_record, cover_image_name, image_count)
 
     def delete(self, board_id: str) -> None:
         self.__invoker.services.board_records.delete(board_id)
@@ -50,30 +37,10 @@ class BoardService(BoardServiceABC):
         self, offset: int = 0, limit: int = 10, include_archived: bool = False
     ) -> OffsetPaginatedResults[BoardDTO]:
         board_records = self.__invoker.services.board_records.get_many(offset, limit, include_archived)
-        board_dtos = []
+        board_dtos = [BoardDTO.model_validate(r.model_dump()) for r in board_records.items]
-        for r in board_records.items:
-            cover_image = self.__invoker.services.image_records.get_most_recent_image_for_board(r.board_id)
-            if cover_image:
-                cover_image_name = cover_image.image_name
-            else:
-                cover_image_name = None
-
-            image_count = self.__invoker.services.board_image_records.get_image_count_for_board(r.board_id)
-            board_dtos.append(board_record_to_dto(r, cover_image_name, image_count))
-
         return OffsetPaginatedResults[BoardDTO](items=board_dtos, offset=offset, limit=limit, total=len(board_dtos))
 
     def get_all(self, include_archived: bool = False) -> list[BoardDTO]:
         board_records = self.__invoker.services.board_records.get_all(include_archived)
-        board_dtos = []
+        board_dtos = [BoardDTO.model_validate(r.model_dump()) for r in board_records]
-        for r in board_records:
-            cover_image = self.__invoker.services.image_records.get_most_recent_image_for_board(r.board_id)
-            if cover_image:
-                cover_image_name = cover_image.image_name
-            else:
-                cover_image_name = None
-
-            image_count = self.__invoker.services.board_image_records.get_image_count_for_board(r.board_id)
-            board_dtos.append(board_record_to_dto(r, cover_image_name, image_count))
-
         return board_dtos