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Fix bug #1557514 by auto-detecting the columns of the tables in the songs database

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Fixes: https://launchpad.net/bugs/1557514
This commit is contained in:
Raoul Snyman 2016-04-27 20:58:35 +02:00
parent b43349e3ea
commit 7262345912
3 changed files with 63 additions and 28 deletions
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1
.bzrignore
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@ -45,3 +45,4 @@ cover
*.kdev4
coverage
tags
output

2
openlp/plugins/songs/lib/db.py
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@ -383,7 +383,7 @@ def init_schema(url):
# Use lazy='joined' to always load authors when the song is fetched from the database (bug 1366198)
'authors': relation(Author, secondary=authors_songs_table, viewonly=True, lazy='joined'),
'media_files': relation(MediaFile, backref='songs', order_by=media_files_table.c.weight),
'songbook_entries': relation(SongBookEntry, backref='song', cascade="all, delete-orphan"),
'songbook_entries': relation(SongBookEntry, backref='song', cascade='all, delete-orphan'),
'topics': relation(Topic, backref='songs', secondary=songs_topics_table)
})
mapper(Topic, topics_table)

88
openlp/plugins/songs/lib/importers/openlp.py
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@ -51,7 +51,7 @@ class OpenLPSongImport(SongImport):
:param manager: The song manager for the running OpenLP installation.
:param kwargs: The database providing the data to import.
"""
SongImport.__init__(self, manager, **kwargs)
super(OpenLPSongImport, self).__init__(manager, **kwargs)
self.source_session = None
def do_import(self, progress_dialog=None):
@ -63,49 +63,61 @@ class OpenLPSongImport(SongImport):
class OldAuthor(BaseModel):
"""
Author model
Maps to the authors table
"""
pass
class OldBook(BaseModel):
"""
Book model
Maps to the songbooks table
"""
pass
class OldMediaFile(BaseModel):
"""
MediaFile model
Maps to the media_files table
"""
pass
class OldSong(BaseModel):
"""
Song model
Maps to the songs table
"""
pass
class OldTopic(BaseModel):
"""
Topic model
Maps to the topics table
"""
pass
class OldSongBookEntry(BaseModel):
"""
Maps to the songs_songbooks table
"""
pass
# Check the file type
if not self.import_source.endswith('.sqlite'):
if not isinstance(self.import_source, str) or not self.import_source.endswith('.sqlite'):
self.log_error(self.import_source, translate('SongsPlugin.OpenLPSongImport',
'Not a valid OpenLP 2 song database.'))
return
self.import_source = 'sqlite:///%s' % self.import_source
# Load the db file
# Load the db file and reflect it
engine = create_engine(self.import_source)
source_meta = MetaData()
source_meta.reflect(engine)
self.source_session = scoped_session(sessionmaker(bind=engine))
# Run some checks to see which version of the database we have
if 'media_files' in list(source_meta.tables.keys()):
has_media_files = True
else:
has_media_files = False
if 'songs_songbooks' in list(source_meta.tables.keys()):
has_songs_books = True
else:
has_songs_books = False
# Load up the tabls and map them out
source_authors_table = source_meta.tables['authors']
source_song_books_table = source_meta.tables['song_books']
source_songs_table = source_meta.tables['songs']
@ -113,6 +125,7 @@ class OpenLPSongImport(SongImport):
source_authors_songs_table = source_meta.tables['authors_songs']
source_songs_topics_table = source_meta.tables['songs_topics']
source_media_files_songs_table = None
# Set up media_files relations
if has_media_files:
source_media_files_table = source_meta.tables['media_files']
source_media_files_songs_table = source_meta.tables.get('media_files_songs')
@ -120,9 +133,15 @@ class OpenLPSongImport(SongImport):
class_mapper(OldMediaFile)
except UnmappedClassError:
mapper(OldMediaFile, source_media_files_table)
if has_songs_books:
source_songs_songbooks_table = source_meta.tables['songs_songbooks']
try:
class_mapper(OldSongBookEntry)
except UnmappedClassError:
mapper(OldSongBookEntry, source_songs_songbooks_table, properties={'songbook': relation(OldBook)})
# Set up the songs relationships
song_props = {
'authors': relation(OldAuthor, backref='songs', secondary=source_authors_songs_table),
'book': relation(OldBook, backref='songs'),
'topics': relation(OldTopic, backref='songs', secondary=source_songs_topics_table)
}
if has_media_files:
@ -134,6 +153,11 @@ class OpenLPSongImport(SongImport):
relation(OldMediaFile, backref='songs',
foreign_keys=[source_media_files_table.c.song_id],
primaryjoin=source_songs_table.c.id == source_media_files_table.c.song_id)
if has_songs_books:
song_props['songbook_entries'] = relation(OldSongBookEntry, backref='song', cascade='all, delete-orphan')
else:
song_props['book'] = relation(OldBook, backref='songs')
# Map the rest of the tables
try:
class_mapper(OldAuthor)
except UnmappedClassError:
@ -163,44 +187,54 @@ class OpenLPSongImport(SongImport):
old_titles = song.search_title.split('@')
if len(old_titles) > 1:
new_song.alternate_title = old_titles[1]
# Values will be set when cleaning the song.
# Transfer the values to the new song object
new_song.search_title = ''
new_song.search_lyrics = ''
new_song.song_number = song.song_number
new_song.lyrics = song.lyrics
new_song.verse_order = song.verse_order
new_song.copyright = song.copyright
new_song.comments = song.comments
new_song.theme_name = song.theme_name
new_song.ccli_number = song.ccli_number
if hasattr(song, 'song_number') and song.song_number:
new_song.song_number = song.song_number
# Find or create all the authors and add them to the new song object
for author in song.authors:
existing_author = self.manager.get_object_filtered(Author, Author.display_name == author.display_name)
if existing_author is None:
if not existing_author:
existing_author = Author.populate(
first_name=author.first_name,
last_name=author.last_name,
display_name=author.display_name)
new_song.add_author(existing_author)
if song.book:
existing_song_book = self.manager.get_object_filtered(Book, Book.name == song.book.name)
if existing_song_book is None:
existing_song_book = Book.populate(name=song.book.name, publisher=song.book.publisher)
new_song.book = existing_song_book
# Find or create all the topics and add them to the new song object
if song.topics:
for topic in song.topics:
existing_topic = self.manager.get_object_filtered(Topic, Topic.name == topic.name)
if existing_topic is None:
if not existing_topic:
existing_topic = Topic.populate(name=topic.name)
new_song.topics.append(existing_topic)
if has_media_files:
if song.media_files:
for media_file in song.media_files:
existing_media_file = self.manager.get_object_filtered(
MediaFile, MediaFile.file_name == media_file.file_name)
if existing_media_file:
new_song.media_files.append(existing_media_file)
else:
new_song.media_files.append(MediaFile.populate(file_name=media_file.file_name))
# Find or create all the songbooks and add them to the new song object
if has_songs_books and song.songbook_entries:
for entry in song.songbook_entries:
existing_book = self.manager.get_object_filtered(Book, Book.name == entry.songbook.name)
if not existing_book:
existing_book = Book.populate(name=entry.songbook.name, publisher=entry.songbook.publisher)
new_song.add_songbook_entry(existing_book, entry.entry)
elif song.book:
existing_book = self.manager.get_object_filtered(Book, Book.name == song.book.name)
if not existing_book:
existing_book = Book.populate(name=song.book.name, publisher=song.book.publisher)
new_song.add_songbook_entry(existing_book, '')
# Find or create all the media files and add them to the new song object
if has_media_files and song.media_files:
for media_file in song.media_files:
existing_media_file = self.manager.get_object_filtered(
MediaFile, MediaFile.file_name == media_file.file_name)
if existing_media_file:
new_song.media_files.append(existing_media_file)
else:
new_song.media_files.append(MediaFile.populate(file_name=media_file.file_name))
clean_song(self.manager, new_song)
self.manager.save_object(new_song)
if progress_dialog: