Author/Title sort

[WS64]

I wrote a little plugin that reads the metadata of books using self.db.get_metadata, then changes the values of the author and/or the title and writes the data back using self.db.set_metadata.
Everything works.
What I don't get to work, how do I set author_sort and/or title_sort of my changed values? Is there a function that I can use to calculate and write them back?

One more question, I also use QProgressDialog, it works, but it always shows "libprs500" in the header of the progress window. How do i get rid of this?

[kovidgoyal]

dont use get/set metadata, they are very ineeficient if all you want to do is change a couple of fields. Use db.new_api.field_for('title', book_id) and db.new_api.field_for('authors') and to change,

db.new_api.set_field('title', {book_id:value})
db.new_api.set_field('authors', {book_id:value})

Then use 'title_sort' and 'author_sort' to work with those fields.

ANd to set the window title use

self.setWindowTitle('whatever')

[WS64]

Thanks, I changed to the new_api method.
Seems that using that one authors_sort and title_sort are automatically updated?
Much better than get/set metadata.

But self.setWindowTitle('whatever') does not work.
It is actually the window of the progressbar that shows the libprs500 text, no matter if I use self.setWindowTitle('whatever') or progressbarname.setWindowTitle('whatever')...