Actually add tracks chosen from query

app/classes.py

@@ -5,7 +5,7 @@ from dataclasses import dataclass
 from enum import auto, Enum
 import functools
 import threading
-from typing import NamedTuple, Optional
+from typing import NamedTuple
 
 # Third party imports
 
@@ -97,10 +97,7 @@ class MusicMusterSignals(QObject):
     """
     Class for all MusicMuster signals. See:
      - https://zetcode.com/gui/pyqt5/eventssignals/
-     - https://stackoverflow.com/questions/62654525/
+     - https://stackoverflow.com/questions/62654525/emit-a-signal-from-another-class-to-main-class
-        emit-a-signal-from-another-class-to-main-class
-    and Singleton class at
-    https://refactoring.guru/design-patterns/singleton/python/example#example-0
     """
 
     begin_reset_model_signal = pyqtSignal(int)

app/musicmuster.py

@@ -72,7 +72,7 @@ from classes import (
 from config import Config
 from dialogs import TrackSelectDialog
 from file_importer import FileImporter
-from helpers import file_is_unreadable, get_name
+from helpers import ask_yes_no, file_is_unreadable, get_name
 from log import log
 from models import db, Playdates, PlaylistRows, Playlists, Queries, Settings, Tracks
 from music_manager import RowAndTrack, track_sequence
@@ -1431,7 +1431,27 @@ class Window(QMainWindow):
 
         # Keep a reference else it will be gc'd
         self.query_dialog = QueryDialog(session, query_id)
-        self.query_dialog.exec()
+        if self.query_dialog.exec():
+            new_row_number = self.current_row_or_end()
+            base_model = self.current.base_model
+            for track_id in self.query_dialog.selected_tracks:
+                # Check whether track is already in playlist
+                move_existing = False
+                existing_prd = base_model.is_track_in_playlist(track_id)
+                if existing_prd is not None:
+                    if ask_yes_no(
+                        "Duplicate row",
+                        "Track already in playlist. " "Move to new location?",
+                        default_yes=True,
+                    ):
+                        move_existing = True
+
+                if move_existing and existing_prd:
+                    base_model.move_track_add_note(new_row_number, existing_prd, note="")
+                else:
+                    base_model.insert_row(new_row_number, track_id)
+
+            new_row_number += 1
 
     # # # # # # # # # # Playlist management functions # # # # # # # # # #