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Speed up manage_authors by orders of magnitude. In the process, make database_changed notification sane, doing the operation once even if many emits were done.

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This commit is contained in:
Charles Haley 2010-12-03 13:09:20 +00:00
parent 741ff46083
commit eac8447e47
2 changed files with 12 additions and 5 deletions
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10
src/calibre/gui2/tag_view.py
View File

@ -106,10 +106,13 @@ class TagsView(QTreeView): # {{{
self.refresh_required.connect(self.recount, type=Qt.QueuedConnection)
self.sort_by.currentIndexChanged.connect(self.sort_changed)
self.made_connections = True
self.refresh_signal_processed = True
db.add_listener(self.database_changed)
def database_changed(self, event, ids):
self.refresh_required.emit()
if self.refresh_signal_processed:
self.refresh_signal_processed = False
self.refresh_required.emit()
@property
def match_all(self):
@ -295,6 +298,7 @@ class TagsView(QTreeView): # {{{
return self.isExpanded(idx)
def recount(self, *args):
self.refresh_signal_processed = True
ci = self.currentIndex()
if not ci.isValid():
ci = self.indexAt(QPoint(10, 10))
@ -937,7 +941,9 @@ class TagBrowserMixin(object): # {{{
if old_author != new_author:
# The id might change if the new author already exists
id = db.rename_author(id, new_author)
db.set_sort_field_for_author(id, unicode(new_sort))
db.set_sort_field_for_author(id, unicode(new_sort),
commit=False, notify=False)
db.commit()
self.library_view.model().refresh()
self.tags_view.recount()

7
src/calibre/library/database2.py
View File

@ -1639,15 +1639,16 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
return []
return result
def set_sort_field_for_author(self, old_id, new_sort):
def set_sort_field_for_author(self, old_id, new_sort, commit=True, notify=False):
self.conn.execute('UPDATE authors SET sort=? WHERE id=?', \
(new_sort.strip(), old_id))
self.conn.commit()
if commit:
self.conn.commit()
# Now change all the author_sort fields in books by this author
bks = self.conn.get('SELECT book from books_authors_link WHERE author=?', (old_id,))
for (book_id,) in bks:
ss = self.author_sort_from_book(book_id, index_is_id=True)
self.set_author_sort(book_id, ss)
self.set_author_sort(book_id, ss, notify=notify, commit=commit)
def rename_author(self, old_id, new_name):
# Make sure that any commas in new_name are changed to '|'!