Extract method to delete a song.

openlp/plugins/songs/forms/duplicatesongremovalform.py

@@ -38,6 +38,7 @@ from PyQt4 import QtCore, QtGui
 from openlp.core.lib import Registry, translate
 from openlp.core.ui.wizard import OpenLPWizard, WizardStrings
 from openlp.core.utils import AppLocation
+from openlp.plugins.songs.lib import delete_song
 from openlp.plugins.songs.lib.db import Song, MediaFile
 from openlp.plugins.songs.forms.songreviewwidget import SongReviewWidget
 from openlp.plugins.songs.lib.songcompare import songs_probably_equal
@@ -273,23 +274,7 @@ class DuplicateSongRemovalForm(OpenLPWizard):
         # Remove song from duplicate song list.
         self.duplicate_song_list[-1].remove(song_review_widget.song)
         # Remove song from the database.
-        item_id = song_review_widget.song.id
-        media_files = self.plugin.manager.get_all_objects(MediaFile,
-            MediaFile.song_id == item_id)
-        for media_file in media_files:
-            try:
-                os.remove(media_file.file_name)
-            except:
-                log.exception(u'Could not remove file: %s',
-                    media_file.file_name)
-        try:
-            save_path = os.path.join(AppLocation.get_section_data_path(
-                self.plugin.name), u'audio', str(item_id))
-            if os.path.exists(save_path):
-                os.rmdir(save_path)
-        except OSError:
-            log.exception(u'Could not remove directory: %s', save_path)
-        self.plugin.manager.delete_object(Song, item_id)
+        delete_song(song_review_widget.song.id, self.plugin)
         # Remove GUI elements for the song.
         self.review_scroll_area_layout.removeWidget(song_review_widget)
         song_review_widget.setParent(None)

openlp/plugins/songs/lib/__init__.py

@@ -29,15 +29,21 @@
 """
 The :mod:`~openlp.plugins.songs.lib` module contains a number of library functions and classes used in the Songs plugin.
 """
+
+import logging
+import os
 import re
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import translate
-from openlp.core.utils import CONTROL_CHARS
+from openlp.core.utils import AppLocation, CONTROL_CHARS
+from openlp.plugins.songs.lib.db import MediaFile, Song
 from db import Author
 from ui import SongStrings
 
+log = logging.getLogger(__name__)
+
 WHITESPACE = re.compile(r'[\W_]+', re.UNICODE)
 APOSTROPHE = re.compile(u'[\'`’ʻ′]', re.UNICODE)
 PATTERN = re.compile(r"\\([a-z]{1,32})(-?\d{1,10})?[ ]?|\\'([0-9a-f]{2})|\\([^a-z])|([{}])|[\r\n]+|(.)", re.I)
@@ -593,3 +599,29 @@ def strip_rtf(text, default_encoding=None):
     text = u''.join(out)
     return text, default_encoding
 
+
+def delete_song(song_id, song_plugin):
+    """
+    Deletes a song from the database. Media files associated to the song
+    are removed prior to the deletion of the song.
+
+    ``song_id``
+        The ID of the song to delete.
+
+    ``song_plugin``
+        The song plugin instance.
+    """
+    media_files = song_plugin.manager.get_all_objects(MediaFile, MediaFile.song_id == song_id)
+    for media_file in media_files:
+        try:
+            os.remove(media_file.file_name)
+        except:
+            log.exception('Could not remove file: %s', media_file.file_name)
+    try:
+        save_path = os.path.join(AppLocation.get_section_data_path(song_plugin.name), 'audio', str(song_id))
+        if os.path.exists(save_path):
+            os.rmdir(save_path)
+    except OSError:
+        log.exception(u'Could not remove directory: %s', save_path)
+    song_plugin.manager.delete_object(Song, song_id)
+

openlp/plugins/songs/lib/mediaitem.py

@@ -43,7 +43,7 @@ from openlp.plugins.songs.forms.editsongform import EditSongForm
 from openlp.plugins.songs.forms.songmaintenanceform import SongMaintenanceForm
 from openlp.plugins.songs.forms.songimportform import SongImportForm
 from openlp.plugins.songs.forms.songexportform import SongExportForm
-from openlp.plugins.songs.lib import VerseType, clean_string
+from openlp.plugins.songs.lib import VerseType, clean_string, delete_song
 from openlp.plugins.songs.lib.db import Author, Song, Book, MediaFile
 from openlp.plugins.songs.lib.ui import SongStrings
 from openlp.plugins.songs.lib.xml import OpenLyrics, SongXML
@@ -368,19 +368,7 @@ class SongMediaItem(MediaManagerItem):
             self.main_window.display_progress_bar(len(items))
             for item in items:
                 item_id = item.data(QtCore.Qt.UserRole)
-                media_files = self.plugin.manager.get_all_objects(MediaFile, MediaFile.song_id == item_id)
-                for media_file in media_files:
-                    try:
-                        os.remove(media_file.file_name)
-                    except:
-                        log.exception('Could not remove file: %s', media_file.file_name)
-                try:
-                    save_path = os.path.join(AppLocation.get_section_data_path(self.plugin.name), 'audio', str(item_id))
-                    if os.path.exists(save_path):
-                        os.rmdir(save_path)
-                except OSError:
-                    log.exception(u'Could not remove directory: %s', save_path)
-                self.plugin.manager.delete_object(Song, item_id)
+                delete_song(item_id, self.plugin)
                 self.main_window.increment_progress_bar()
             self.main_window.finished_progress_bar()
             self.application.set_normal_cursor()