Manual de usuario de calibre, Publicación 2.73.0
most_recent_id = book_id
if most_recent_id is not None:
# Get a reference to the View plugin
view_plugin = self.gui.iactions['View']
# Ask the view plugin to launch the viewer for row_number
view_plugin._view_calibre_books([most_recent_id])
def update_metadata(self):
'''
Set the metadata in the files in the selected book's record to
match the current metadata in the database.
'''
from calibre.ebooks.metadata.meta import set_metadata
from calibre.gui2 import error_dialog, info_dialog
# Get currently selected books
rows = self.gui.library_view.selectionModel().selectedRows()
if not rows or len(rows) == 0:
return error_dialog(self.gui, 'Cannot update metadata',
'No books selected', show=True)
# Map the rows to book ids
ids = list(map(self.gui.library_view.model().id, rows))
db = self.db.new_api
for book_id in ids:
# Get the current metadata for this book from the db
mi = db.get_metadata(book_id, get_cover=True, cover_as_data=True)
fmts = db.formats(book_id)
if not fmts:
continue
for fmt in fmts:
fmt = fmt.lower()
# Get a python file object for the format. This will be either
# an in memory file or a temporary on disk file
ffile = db.format(book_id, fmt, as_file=True)
ffile.seek(0)
# Set metadata in the format
set_metadata(ffile, mi, fmt)
ffile.seek(0)
# Now replace the file in the calibre library with the updated
# file. We dont use add_format_with_hooks as the hooks were
# already run when the file was first added to calibre.
db.add_format(book_id, fmt, ffile, run_hooks=False)
info_dialog(self, 'Updated files',
'Updated the metadata in the files of %d book(s)'%len(ids),
show=True)
def config(self):
self.do_user_config(parent=self)
# Apply the changes
self.label.setText(prefs['hello_world_msg'])
1.9. Cursillos
193