WIP: Unify function to move rows within/between playlists

app/file_importer.py

@@ -104,14 +104,16 @@ class FileImporter:
     # variable or an instance variable are effectively the same thing.
     workers: dict[str, DoTrackImport] = {}
 
-    def __init__(self, base_model: PlaylistModel, row_number: int) -> None:
+    def __init__(
+        self, base_model: PlaylistModel, row_number: Optional[int] = None
+    ) -> None:
         """
         Initialise the FileImporter singleton instance.
         """
 
-        log.debug(f"FileImporter.__init__({base_model=}, {row_number=})")
-
         # Create ModelData
+        if not row_number:
+            row_number = base_model.rowCount()
         self.model_data = ThreadData(base_model=base_model, row_number=row_number)
 
         # Data structure to track files to import

app/log.py

@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 # Standard library imports
 from collections import defaultdict
-from functools import wraps
 import logging
 import logging.config
 import logging.handlers
@@ -121,30 +120,4 @@ def handle_exception(exc_type, exc_value, exc_traceback):
         QMessageBox.critical(None, "Application Error", msg)
 
 
-def truncate_large(obj, limit=5):
-    """Helper to truncate large lists or other iterables."""
-    if isinstance(obj, (list, tuple, set)):
-        if len(obj) > limit:
-            return f"{type(obj).__name__}(len={len(obj)}, items={list(obj)[:limit]}...)"
-
-    return repr(obj)
-
-
-def log_call(func):
-    @wraps(func)
-    def wrapper(*args, **kwargs):
-        args_repr = [truncate_large(a) for a in args]
-        kwargs_repr = [f"{k}={truncate_large(v)}" for k, v in kwargs.items()]
-        params_repr = ", ".join(args_repr + kwargs_repr)
-        log.debug(f"call {func.__name__}({params_repr})", stacklevel=2)
-        try:
-            result = func(*args, **kwargs)
-            log.debug(f"return {func.__name__}: {truncate_large(result)}", stacklevel=2)
-            return result
-        except Exception as e:
-            log.debug(f"exception in {func.__name__}: {e}", stacklevel=2)
-            raise
-    return wrapper
-
-
 sys.excepthook = handle_exception

app/musicmuster.py

@@ -73,7 +73,7 @@ from config import Config
 from dialogs import TrackInsertDialog
 from file_importer import FileImporter
 from helpers import ask_yes_no, file_is_unreadable, get_name
-from log import log, log_call
+from log import log
 from models import db, Playdates, PlaylistRows, Playlists, Queries, Settings, Tracks
 from playlistrow import PlaylistRow, TrackSequence
 from playlistmodel import PlaylistModel, PlaylistProxyModel
@@ -478,7 +478,6 @@ class ManageQueries(ItemlistManager):
 
         self.populate_table(query_list)
 
-    @log_call
     def delete_item(self, query_id: int) -> None:
         """delete query"""
 
@@ -491,6 +490,7 @@ class ManageQueries(ItemlistManager):
             "Delete query",
             f"Delete query '{query.name}': " "Are you sure?",
         ):
+            log.debug(f"manage_queries: delete {query=}")
             self.session.delete(query)
             self.session.commit()
 
@@ -583,7 +583,6 @@ class ManageTemplates(ItemlistManager):
 
         self.populate_table(template_list)
 
-    @log_call
     def delete_item(self, template_id: int) -> None:
         """delete template"""
 
@@ -607,6 +606,7 @@ class ManageTemplates(ItemlistManager):
                 else:
                     self.musicmuster.playlist_section.tabPlaylist.removeTab(open_idx)
 
+            log.debug(f"manage_templates: delete {template=}")
             self.session.delete(template)
             self.session.commit()
 
@@ -1235,6 +1235,7 @@ class Window(QMainWindow):
                 for playlist_id, idx in open_playlist_ids.items():
                     playlist = session.get(Playlists, playlist_id)
                     if playlist:
+                        log.debug(f"Set {playlist=} tab to {idx=}")
                         playlist.tab = idx
 
                 # Save window attributes
@@ -1452,7 +1453,6 @@ class Window(QMainWindow):
 
     # # # # # # # # # # Playlist management functions # # # # # # # # # #
 
-    @log_call
     def _create_playlist(
         self, session: Session, name: str, template_id: int
     ) -> Playlists:
@@ -1461,9 +1461,10 @@ class Window(QMainWindow):
         if template_id > 0, and return the Playlists object.
         """
 
+        log.debug(f" _create_playlist({name=}, {template_id=})")
+
         return Playlists(session, name, template_id)
 
-    @log_call
     def _open_playlist(self, playlist: Playlists, is_template: bool = False) -> int:
         """
         With passed playlist:
@@ -1474,6 +1475,8 @@ class Window(QMainWindow):
          return: tab index
         """
 
+        log.debug(f" _open_playlist({playlist=}, {is_template=})")
+
         # Create base model and proxy model
         base_model = PlaylistModel(playlist.id, is_template)
         proxy_model = PlaylistProxyModel()
@@ -1492,7 +1495,6 @@ class Window(QMainWindow):
 
         return idx
 
-    @log_call
     def create_playlist_from_template(self, session: Session, template_id: int) -> None:
         """
         Prompt for new playlist name and create from passed template_id
@@ -1514,8 +1516,7 @@ class Window(QMainWindow):
         self._open_playlist(playlist)
         session.commit()
 
-    @log_call
-    def delete_playlist(self, checked: bool = False) -> None:
+    def delete_playlist(self) -> None:
         """
         Delete current playlist
         """
@@ -1534,7 +1535,7 @@ class Window(QMainWindow):
             else:
                 log.error("Failed to retrieve playlist")
 
-    def open_existing_playlist(self, checked: bool = False) -> None:
+    def open_existing_playlist(self) -> None:
         """Open existing playlist"""
 
         with db.Session() as session:
@@ -1546,7 +1547,7 @@ class Window(QMainWindow):
                 self._open_playlist(playlist)
                 session.commit()
 
-    def save_as_template(self, checked: bool = False) -> None:
+    def save_as_template(self) -> None:
         """Save current playlist as template"""
 
         with db.Session() as session:
@@ -1622,7 +1623,7 @@ class Window(QMainWindow):
 
     # # # # # # # # # # Manage templates and queries # # # # # # # # # #
 
-    def manage_queries_wrapper(self, checked: bool = False) -> None:
+    def manage_queries_wrapper(self):
         """
         Simply instantiate the manage_queries class
         """
@@ -1630,7 +1631,7 @@ class Window(QMainWindow):
         with db.Session() as session:
             _ = ManageQueries(session, self)
 
-    def manage_templates_wrapper(self, checked: bool = False) -> None:
+    def manage_templates_wrapper(self):
         """
         Simply instantiate the manage_queries class
         """
@@ -1640,12 +1641,12 @@ class Window(QMainWindow):
 
     # # # # # # # # # # Miscellaneous functions # # # # # # # # # #
 
-    def select_duplicate_rows(self, checked: bool = False) -> None:
+    def select_duplicate_rows(self) -> None:
         """Call playlist to select duplicate rows"""
 
         self.active_tab().select_duplicate_rows()
 
-    def about(self, checked: bool = False) -> None:
+    def about(self) -> None:
         """Get git tag and database name"""
 
         try:
@@ -1674,7 +1675,7 @@ class Window(QMainWindow):
         self.track_sequence.set_next(None)
         self.update_headers()
 
-    def clear_selection(self, checked: bool = False) -> None:
+    def clear_selection(self) -> None:
         """Clear row selection"""
 
         # Unselect any selected rows
@@ -1684,7 +1685,7 @@ class Window(QMainWindow):
         # Clear the search bar
         self.search_playlist_clear()
 
-    def close_playlist_tab(self, checked: bool = False) -> bool:
+    def close_playlist_tab(self) -> bool:
         """
         Close active playlist tab, called by menu item
         """
@@ -1770,7 +1771,6 @@ class Window(QMainWindow):
         self.signals.search_songfacts_signal.connect(self.open_songfacts_browser)
         self.signals.search_wikipedia_signal.connect(self.open_wikipedia_browser)
 
-    @log_call
     def current_row_or_end(self) -> int:
         """
         If a row or rows are selected, return the row number of the first
@@ -1782,14 +1782,14 @@ class Window(QMainWindow):
             return self.current.selected_row_numbers[0]
         return self.current.base_model.rowCount()
 
-    def debug(self, checked: bool = False) -> None:
+    def debug(self):
         """Invoke debugger"""
 
         import ipdb  # type: ignore
 
         ipdb.set_trace()
 
-    def download_played_tracks(self, checked: bool = False) -> None:
+    def download_played_tracks(self) -> None:
         """Download a CSV of played tracks"""
 
         dlg = DownloadCSV(self)
@@ -1820,7 +1820,6 @@ class Window(QMainWindow):
         if self.track_sequence.current:
             self.track_sequence.current.drop3db(self.footer_section.btnDrop3db.isChecked())
 
-    @log_call
     def enable_escape(self, enabled: bool) -> None:
         """
         Manage signal to enable/disable handling ESC character.
@@ -1829,10 +1828,11 @@ class Window(QMainWindow):
         so we need to disable it here while editing.
         """
 
+        log.debug(f"enable_escape({enabled=})")
+
         if "clear_selection" in self.menu_actions:
             self.menu_actions["clear_selection"].setEnabled(enabled)
 
-    @log_call
     def end_of_track_actions(self) -> None:
         """
 
@@ -1867,7 +1867,7 @@ class Window(QMainWindow):
         # if not self.stop_autoplay:
         #     self.play_next()
 
-    def export_playlist_tab(self, checked: bool = False) -> None:
+    def export_playlist_tab(self) -> None:
         """Export the current playlist to an m3u file"""
 
         playlist_id = self.current.playlist_id
@@ -1908,7 +1908,7 @@ class Window(QMainWindow):
                         "\n"
                     )
 
-    def fade(self, checked: bool = False) -> None:
+    def fade(self) -> None:
         """Fade currently playing track"""
 
         if self.track_sequence.current:
@@ -1944,7 +1944,7 @@ class Window(QMainWindow):
         # Reset row heights
         self.active_tab().resize_rows()
 
-    def import_files_wrapper(self, checked: bool = False) -> None:
+    def import_files_wrapper(self) -> None:
         """
         Pass import files call to file_importer module
         """
@@ -1954,7 +1954,7 @@ class Window(QMainWindow):
         self.importer = FileImporter(self.current.base_model, self.current_row_or_end())
         self.importer.start()
 
-    def insert_header(self, checked: bool = False) -> None:
+    def insert_header(self) -> None:
         """Show dialog box to enter header text and add to playlist"""
 
         # Get header text
@@ -1969,7 +1969,7 @@ class Window(QMainWindow):
                 note=dlg.textValue(),
             )
 
-    def insert_track(self, checked: bool = False) -> None:
+    def insert_track(self) -> None:
         """Show dialog box to select and add track from database"""
 
         dlg = TrackInsertDialog(
@@ -1978,7 +1978,6 @@ class Window(QMainWindow):
         )
         dlg.exec()
 
-    @log_call
     def load_last_playlists(self) -> None:
         """Load the playlists that were open when the last session closed"""
 
@@ -1986,6 +1985,7 @@ class Window(QMainWindow):
         with db.Session() as session:
             for playlist in Playlists.get_open(session):
                 if playlist:
+                    log.debug(f"load_last_playlists() loaded {playlist=}")
                     # Create tab
                     playlist_ids.append(self._open_playlist(playlist))
 
@@ -2001,7 +2001,7 @@ class Window(QMainWindow):
             Playlists.clear_tabs(session, playlist_ids)
             session.commit()
 
-    def lookup_row_in_songfacts(self, checked: bool = False) -> None:
+    def lookup_row_in_songfacts(self) -> None:
         """
         Display songfacts page for title in highlighted row
         """
@@ -2012,7 +2012,7 @@ class Window(QMainWindow):
 
         self.signals.search_songfacts_signal.emit(track_info.title)
 
-    def lookup_row_in_wikipedia(self, checked: bool = False) -> None:
+    def lookup_row_in_wikipedia(self) -> None:
         """
         Display Wikipedia page for title in highlighted row or next track
         """
@@ -2023,7 +2023,7 @@ class Window(QMainWindow):
 
         self.signals.search_wikipedia_signal.emit(track_info.title)
 
-    def mark_rows_for_moving(self, checked: bool = False) -> None:
+    def mark_rows_for_moving(self) -> None:
         """
         Cut rows ready for pasting.
         """
@@ -2037,7 +2037,6 @@ class Window(QMainWindow):
             f"mark_rows_for_moving(): {self.move_source_rows=} {self.move_source_model=}"
         )
 
-    @log_call
     def move_playlist_rows(self, row_numbers: list[int]) -> None:
         """
         Move passed playlist rows to another playlist
@@ -2075,7 +2074,7 @@ class Window(QMainWindow):
         # Reset track_sequences
         self.track_sequence.update()
 
-    def move_selected(self, checked: bool = False) -> None:
+    def move_selected(self) -> None:
         """
         Move selected rows to another playlist
         """
@@ -2086,7 +2085,7 @@ class Window(QMainWindow):
 
         self.move_playlist_rows(selected_rows)
 
-    def move_unplayed(self, checked: bool = False) -> None:
+    def move_unplayed(self) -> None:
         """
         Move unplayed rows to another playlist
         """
@@ -2118,8 +2117,7 @@ class Window(QMainWindow):
 
         webbrowser.get("browser").open_new_tab(url)
 
-    @log_call
-    def paste_rows(self, checked: bool = False) -> None:
+    def paste_rows(self, dummy_for_profiling: int | None = None) -> None:
         """
         Paste earlier cut rows.
         """
@@ -2152,8 +2150,7 @@ class Window(QMainWindow):
         if set_next_row:
             to_playlist_model.set_next_row(set_next_row)
 
-    @log_call
-    def play_next(self, position: Optional[float] = None, checked: bool = False) -> None:
+    def play_next(self, position: Optional[float] = None) -> None:
         """
         Play next track, optionally from passed position.
 
@@ -2348,7 +2345,7 @@ class Window(QMainWindow):
         if ok:
             log.debug("quicklog: " + dlg.textValue())
 
-    def rename_playlist(self, checked: bool = False) -> None:
+    def rename_playlist(self) -> None:
         """
         Rename current playlist
         """
@@ -2404,7 +2401,7 @@ class Window(QMainWindow):
 
         return False
 
-    def resume(self, checked: bool = False) -> None:
+    def resume(self) -> None:
         """
         Resume playing last track. We may be playing the next track
         or none; take care of both eventualities.
@@ -2445,7 +2442,7 @@ class Window(QMainWindow):
             )
             self.track_sequence.current.start_time -= dt.timedelta(milliseconds=elapsed_ms)
 
-    def search_playlist(self, checked: bool = False) -> None:
+    def search_playlist(self) -> None:
         """Show text box to search playlist"""
 
         # Disable play controls so that 'return' in search box doesn't
@@ -2503,8 +2500,7 @@ class Window(QMainWindow):
             height = Settings.get_setting(session, "mainwindow_height").f_int or 100
             self.setGeometry(x, y, width, height)
 
-    @log_call
-    def set_selected_track_next(self, checked: bool = False) -> None:
+    def set_selected_track_next(self) -> None:
         """
         Set currently-selected row on visible playlist tab as next track
         """
@@ -2517,7 +2513,6 @@ class Window(QMainWindow):
         # else:
         #     log.error("No active tab")
 
-    @log_call
     def set_tab_colour(self, widget: PlaylistTab, colour: QColor) -> None:
         """
         Find the tab containing the widget and set the text colour
@@ -2579,8 +2574,7 @@ class Window(QMainWindow):
 
         self.active_tab().scroll_to_top(playlist_track.row_number)
 
-    @log_call
-    def stop(self, checked: bool = False) -> None:
+    def stop(self) -> None:
         """Stop playing immediately"""
 
         self.stop_autoplay = True
@@ -2714,7 +2708,6 @@ class Window(QMainWindow):
                 self.catch_return_key = False
                 self.show_status_message("Play controls: Enabled", 0)
                 # Re-enable 10ms timer (see above)
-                log.debug(f"issue287: {self.timer10.isActive()=}")
                 if not self.timer10.isActive():
                     self.timer10.start(10)
                     log.debug("issue223: update_clocks: 10ms timer enabled")

app/playlistmodel.py

@@ -46,7 +46,7 @@ from helpers import (
     remove_substring_case_insensitive,
     set_track_metadata,
 )
-from log import log, log_call
+from log import log
 from models import db, NoteColours, Playdates, PlaylistRows, Tracks
 from playlistrow import PlaylistRow, TrackSequence
 import repository
@@ -79,6 +79,8 @@ class PlaylistModel(QAbstractTableModel):
     ) -> None:
         super().__init__()
 
+        log.debug("PlaylistModel.__init__()")
+
         self.playlist_id = playlist_id
         self.is_template = is_template
         self.track_sequence = TrackSequence()
@@ -143,7 +145,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return header_row
 
-    @log_call
     def add_track_to_header(
         self, playlist_id: int, track_id: int, note: str = ""
     ) -> None:
@@ -241,7 +242,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return QBrush()
 
-    @log_call
     def begin_reset_model(self, playlist_id: int) -> None:
         """
         Reset model if playlist_id is ours
@@ -256,7 +256,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return len(Col)
 
-    @log_call
     def current_track_started(self) -> None:
         """
         Notification from musicmuster that the current track has just
@@ -272,6 +271,8 @@ class PlaylistModel(QAbstractTableModel):
         - update track times
         """
 
+        log.debug(f"{self}: current_track_started()")
+
         if not self.track_sequence.current:
             return
 
@@ -379,7 +380,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return QVariant()
 
-    @log_call
     def delete_rows(self, row_numbers: list[int]) -> None:
         """
         Delete passed rows from model
@@ -462,13 +462,15 @@ class PlaylistModel(QAbstractTableModel):
 
         return ""
 
-    @log_call
     def end_reset_model(self, playlist_id: int) -> None:
         """
         End model reset if this is our playlist
         """
 
+        log.debug(f"{self}: end_reset_model({playlist_id=})")
+
         if playlist_id != self.playlist_id:
+            log.debug(f"{self}: end_reset_model: not us ({self.playlist_id=})")
             return
         with db.Session() as session:
             self.refresh_data(session)
@@ -548,13 +550,14 @@ class PlaylistModel(QAbstractTableModel):
 
         return boldfont
 
-    @log_call
     def get_duplicate_rows(self) -> list[int]:
         """
         Return a list of duplicate rows. If track appears in rows 2, 3 and 4, return [3, 4]
         (ie, ignore the first, not-yet-duplicate, track).
         """
 
+        log.debug(f"{self}: get_duplicate_rows() called")
+
         found = []
         result = []
 
@@ -567,9 +570,9 @@ class PlaylistModel(QAbstractTableModel):
             else:
                 found.append(track_id)
 
+        log.debug(f"{self}: get_duplicate_rows() returned: {result=}")
         return result
 
-    @log_call
     def _get_new_row_number(self, proposed_row_number: Optional[int]) -> int:
         """
         Sanitises proposed new row number.
@@ -578,6 +581,8 @@ class PlaylistModel(QAbstractTableModel):
         If not given, return row number to add to end of model.
         """
 
+        log.debug(f"{self}: _get_new_row_number({proposed_row_number=})")
+
         if proposed_row_number is None or proposed_row_number > len(self.playlist_rows):
             # We are adding to the end of the list
             new_row_number = len(self.playlist_rows)
@@ -587,6 +592,7 @@ class PlaylistModel(QAbstractTableModel):
         else:
             new_row_number = proposed_row_number
 
+        log.debug(f"{self}: get_new_row_number() return: {new_row_number=}")
         return new_row_number
 
     def get_row_info(self, row_number: int) -> PlaylistRow:
@@ -596,7 +602,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return self.playlist_rows[row_number]
 
-    @log_call
     def get_row_track_id(self, row_number: int) -> Optional[int]:
         """
         Return id of track associated with row or None if no track associated
@@ -713,7 +718,6 @@ class PlaylistModel(QAbstractTableModel):
                 ]
                 self.invalidate_row(row_number, roles)
 
-    @log_call
     def insert_row(
         self,
         proposed_row_number: Optional[int],
@@ -724,6 +728,8 @@ class PlaylistModel(QAbstractTableModel):
         Insert a row.
         """
 
+        log.debug(f"{self}: insert_row({proposed_row_number=}, {track_id=}, {note=})")
+
         new_row_number = self._get_new_row_number(proposed_row_number)
 
         super().beginInsertRows(QModelIndex(), new_row_number, new_row_number)
@@ -756,12 +762,13 @@ class PlaylistModel(QAbstractTableModel):
             list(range(new_row_number, len(self.playlist_rows))), roles_to_invalidate
         )
 
-    @log_call
     def invalidate_row(self, modified_row: int, roles: list[Qt.ItemDataRole]) -> None:
         """
         Signal to view to refresh invalidated row
         """
 
+        log.debug(f"issue285: {self}: invalidate_row({modified_row=})")
+
         self.dataChanged.emit(
             self.index(modified_row, 0),
             self.index(modified_row, self.columnCount() - 1),
@@ -775,6 +782,8 @@ class PlaylistModel(QAbstractTableModel):
         Signal to view to refresh invlidated rows
         """
 
+        log.debug(f"issue285: {self}: invalidate_rows({modified_rows=})")
+
         for modified_row in modified_rows:
             # only invalidate required roles
             self.invalidate_row(modified_row, roles)
@@ -788,7 +797,6 @@ class PlaylistModel(QAbstractTableModel):
             return self.playlist_rows[row_number].path == ""
         return False
 
-    @log_call
     def is_played_row(self, row_number: int) -> bool:
         """
         Return True if row is an unplayed track row, else False
@@ -824,7 +832,6 @@ class PlaylistModel(QAbstractTableModel):
         ]
         self.invalidate_rows(row_numbers, roles)
 
-    @log_call
     def move_rows(self, from_rows: list[int], to_row_number: int) -> bool:
         """
         Move the playlist rows in from_rows to to_row. Return True if successful
@@ -846,46 +853,11 @@ class PlaylistModel(QAbstractTableModel):
                 )
                 from_rows.remove(self.track_sequence.current.row_number)
 
-        from_rows = sorted(set(from_rows))
-        if (min(from_rows) < 0 or max(from_rows) >= self.rowCount()
-                or to_row_number < 0 or to_row_number > self.rowCount()):
-            log.debug("move_rows: invalid indexes")
-            return False
+        # Row moves must be wrapped in beginMoveRows .. endMoveRows and
+        # the row range must be contiguous. Process the highest rows
+        # first so the lower row numbers are unchanged
 
-        if to_row_number in from_rows:
-            return False  # Destination within rows to be moved
-
-        # # Remove rows from bottom to top to avoid index shifting
-        # for row in sorted(from_rows, reverse=True):
-        #     self.beginRemoveRows(QModelIndex(), row, row)
-        #     del self.playlist_rows[row]
-        #     # At this point self.playlist_rows has been updated but the
-        #     # underlying database has not (that's done below after
-        #     # inserting the rows)
-        #     self.endRemoveRows()
-
-        # # Adjust insertion point after removal
-        # if to_row_number > max(from_rows):
-        #     rows_below_dest = len([r for r in from_rows if r < to_row_number])
-        #     insertion_point = to_row_number - rows_below_dest
-        # else:
-        #     insertion_point = to_row_number
-
-        # # Insert rows at the destination
-        # plrid_to_new_row_number: list[dict[int, int]] = []
-        # for offset, row_data in enumerate(rows_to_move):
-        #     row_number = insertion_point + offset
-        #     self.beginInsertRows(QModelIndex(), row_number, row_number)
-        #     self.playlist_rows[row_number] = row_data
-        #     plrid_to_new_row_number.append({row_data.playlistrow_id: row_number})
-        #     self.endInsertRows()
-
-        # Notify model going to change
-        self.beginResetModel()
-        # Update database
-        repository.move_rows(from_rows, self.playlist_id, to_row_number)
-        # Notify model changed
-        self.endResetModel()
+        row_groups = self._reversed_contiguous_row_groups([a.row_number for a in from_rows])
 
         # Handle the moves in row_group chunks
         for row_group in row_groups:
@@ -937,7 +909,6 @@ class PlaylistModel(QAbstractTableModel):
 
         super().endInsertRows()
 
-    @log_call
     def move_rows_between_playlists(
         self,
         from_rows: list[PlaylistRow],
@@ -948,6 +919,11 @@ class PlaylistModel(QAbstractTableModel):
         Move the playlist rows given to to_row and below of to_playlist.
         """
 
+        log.debug(
+            f"{self}: move_rows_between_playlists({from_rows=}, "
+            f"{to_row_number=}, {to_playlist_id=}"
+        )
+
         # Don't move current row
         if self.track_sequence.current:
             current_row = self.track_sequence.current.row_number
@@ -986,7 +962,6 @@ class PlaylistModel(QAbstractTableModel):
         self.track_sequence.update()
         self.update_track_times()
 
-    @log_call
     def move_track_add_note(
         self, new_row_number: int, existing_plr: PlaylistRow, note: str
     ) -> None:
@@ -994,6 +969,10 @@ class PlaylistModel(QAbstractTableModel):
         Move existing_rat track to new_row_number and append note to any existing note
         """
 
+        log.debug(
+            f"{self}: move_track_add_note({new_row_number=}, {existing_plr=}, {note=}"
+        )
+
         if note:
             playlist_row = self.playlist_rows[existing_plr.row_number]
             if playlist_row.note:
@@ -1007,30 +986,14 @@ class PlaylistModel(QAbstractTableModel):
         self.move_rows([existing_plr.row_number], new_row_number)
         self.signals.resize_rows_signal.emit(self.playlist_id)
 
-    @log_call
-    def move_track_to_header(
-        self,
-        header_row_number: int,
-        existing_rat: RowAndTrack,
-        note: Optional[str],
-    ) -> None:
-        """
-        Add the existing_rat track details to the existing header at header_row_number
-        """
-
-        if existing_rat.track_id:
-            if note and existing_rat.note:
-                note += "\n" + existing_rat.note
-            self.add_track_to_header(header_row_number, existing_rat.track_id, note)
-            self.delete_rows([existing_rat.row_number])
-
-    @log_call
     def obs_scene_change(self, row_number: int) -> None:
         """
         Check this row and any preceding headers for OBS scene change command
         and execute any found
         """
 
+        log.debug(f"{self}: obs_scene_change({row_number=})")
+
         # Check any headers before this row
         idx = row_number - 1
         while self.is_header_row(idx):
@@ -1059,7 +1022,6 @@ class PlaylistModel(QAbstractTableModel):
                         log.warning(f"{self}: OBS connection refused")
                         return
 
-    @log_call
     def previous_track_ended(self) -> None:
         """
         Notification from musicmuster that the previous track has ended.
@@ -1069,6 +1031,8 @@ class PlaylistModel(QAbstractTableModel):
         - update display
         """
 
+        log.debug(f"{self}: previous_track_ended()")
+
         # Sanity check
         if not self.track_sequence.previous:
             log.error(
@@ -1124,12 +1088,13 @@ class PlaylistModel(QAbstractTableModel):
 
         self.playlist_rows[row_number] = PlaylistRow(refreshed_row)
 
-    @log_call
     def remove_track(self, row_number: int) -> None:
         """
         Remove track from row, retaining row as a header row
         """
 
+        log.debug(f"{self}: remove_track({row_number=})")
+
         self.playlist_rows[row_number].track_id = None
 
         # only invalidate required roles
@@ -1159,31 +1124,6 @@ class PlaylistModel(QAbstractTableModel):
                 self.signals.resize_rows_signal.emit(self.playlist_id)
                 session.commit()
 
-    @log_call
-    def reset_track_sequence_row_numbers(self) -> None:
-        """
-        Signal handler for when row ordering has changed.
-
-        Example: row 4 is marked as next. Row 2 is deleted. The PlaylistRows table will
-        be correctly updated with change of row number, but track_sequence.next will still
-        contain row_number==4. This function fixes up the track_sequence row numbers by
-        looking up the playlistrow_id and retrieving the row number from the database.
-        """
-
-        # Check the track_sequence.next, current and previous plrs and
-        # update the row number
-        with db.Session() as session:
-            for ts in [
-                track_sequence.next,
-                track_sequence.current,
-                track_sequence.previous,
-            ]:
-                if ts:
-                    ts.update_playlist_and_row(session)
-            session.commit()
-
-        self.update_track_times()
-
     def remove_comments(self, row_numbers: list[int]) -> None:
         """
         Remove comments from passed rows
@@ -1222,10 +1162,7 @@ class PlaylistModel(QAbstractTableModel):
         ]
         self.invalidate_rows(row_numbers, roles)
 
-    @log_call
-    def _reversed_contiguous_row_groups(
-        self, row_numbers: list[int]
-    ) -> list[list[int]]:
+    def _reversed_contiguous_row_groups(self, row_numbers: list[int]) -> list[list[int]]:
         """
         Take the list of row numbers and split into groups of contiguous rows. Return as a list
         of lists with the highest row numbers first.
@@ -1235,6 +1172,8 @@ class PlaylistModel(QAbstractTableModel):
             return: [[20, 21], [17], [13], [9, 10], [7], [2, 3, 4, 5]]
         """
 
+        log.debug(f"{self}: _reversed_contiguous_row_groups({row_numbers=} called")
+
         result: list[list[int]] = []
         temp: list[int] = []
         last_value = row_numbers[0] - 1
@@ -1250,11 +1189,12 @@ class PlaylistModel(QAbstractTableModel):
             result.append(temp)
         result.reverse()
 
+        log.debug(f"{self}: _reversed_contiguous_row_groups() returned: {result=}")
         return result
 
     def remove_section_timer_markers(self, header_text: str) -> str:
         """
-        Remove characters used to mark section timings from
+        Remove characters used to mark section timeings from
         passed header text.
 
         Remove text using to signal header colours if colour entry
@@ -1387,7 +1327,6 @@ class PlaylistModel(QAbstractTableModel):
 
         return True
 
-    @log_call
     def set_selected_rows(self, playlist_id: int, selected_row_numbers: list[int]) -> None:
         """
         Handle signal_playlist_selected_rows to keep track of which rows
@@ -1607,7 +1546,6 @@ class PlaylistModel(QAbstractTableModel):
                 ]
             )
 
-    @log_call
     def update_or_insert(self, track_id: int, row_number: int) -> None:
         """
         If the passed track_id exists in this playlist, update the
@@ -1631,12 +1569,13 @@ class PlaylistModel(QAbstractTableModel):
         else:
             self.insert_row(proposed_row_number=row_number, track_id=track_id)
 
-    @log_call
     def update_track_times(self) -> None:
         """
         Update track start/end times in self.playlist_rows
         """
 
+        log.debug(f"issue285: {self}: update_track_times()")
+
         next_start_time: Optional[dt.datetime] = None
         update_rows: list[int] = []
         row_count = len(self.playlist_rows)

app/playlists.py

@@ -44,7 +44,7 @@ from helpers import (
     show_OK,
     show_warning,
 )
-from log import log, log_call
+from log import log
 from models import db, Settings
 from playlistrow import TrackSequence
 from playlistmodel import PlaylistModel, PlaylistProxyModel
@@ -359,8 +359,7 @@ class PlaylistTab(QTableView):
         # Deselect edited line
         self.clear_selection()
 
-    @log_call
-    def dropEvent(self, event: Optional[QDropEvent]) -> None:
+    def dropEvent(self, event: Optional[QDropEvent], dummy: int | None = None) -> None:
         """
         Move dropped rows
         """
@@ -396,6 +395,9 @@ class PlaylistTab(QTableView):
             destination_index = to_index
 
         to_model_row = self.model().mapToSource(destination_index).row()
+        log.debug(
+            f"PlaylistTab.dropEvent(): {from_rows=}, {destination_index=}, {to_model_row=}"
+        )
 
         # Sanity check
         base_model_row_count = self.get_base_model().rowCount()
@@ -678,6 +680,8 @@ class PlaylistTab(QTableView):
         Called when column width changes. Save new width to database.
         """
 
+        log.debug(f"_column_resize({column_number=}, {_old=}, {_new=}")
+
         header = self.horizontalHeader()
         if not header:
             return
@@ -722,7 +726,6 @@ class PlaylistTab(QTableView):
             cb.clear(mode=cb.Mode.Clipboard)
             cb.setText(track_path, mode=cb.Mode.Clipboard)
 
-    @log_call
     def current_track_started(self) -> None:
         """
         Called when track starts playing
@@ -810,7 +813,6 @@ class PlaylistTab(QTableView):
             else:
                 return TrackInfo(track_id, selected_row)
 
-    @log_call
     def get_selected_row(self) -> Optional[int]:
         """
         Return selected row number. If no rows or multiple rows selected, return None
@@ -822,7 +824,6 @@ class PlaylistTab(QTableView):
         else:
             return None
 
-    @log_call
     def get_selected_rows(self) -> list[int]:
         """Return a list of model-selected row numbers sorted by row"""
 
@@ -835,7 +836,6 @@ class PlaylistTab(QTableView):
 
         return sorted(list(set([self.model().mapToSource(a).row() for a in selected_indexes])))
 
-    @log_call
     def get_top_visible_row(self) -> int:
         """
         Get the viewport of the table view
@@ -958,6 +958,8 @@ class PlaylistTab(QTableView):
         If playlist_id is us, resize rows
         """
 
+        log.debug(f"resize_rows({playlist_id=}) {self.playlist_id=}")
+
         if playlist_id and playlist_id != self.playlist_id:
             return
 
@@ -1004,7 +1006,6 @@ class PlaylistTab(QTableView):
         # Reset selection mode
         self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
 
-    @log_call
     def source_model_selected_row_number(self) -> Optional[int]:
         """
         Return the model row number corresponding to the selected row or None
@@ -1015,7 +1016,6 @@ class PlaylistTab(QTableView):
             return None
         return self.model().mapToSource(selected_index).row()
 
-    @log_call
     def selected_model_row_numbers(self) -> list[int]:
         """
         Return a list of model row numbers corresponding to the selected rows or
@@ -1058,6 +1058,8 @@ class PlaylistTab(QTableView):
     def _set_column_widths(self) -> None:
         """Column widths from settings"""
 
+        log.debug("_set_column_widths()")
+
         header = self.horizontalHeader()
         if not header:
             return