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When deleting all formats except ..., do not delete if it leaves a book with no formats

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This commit is contained in:
Kovid Goyal 2011-05-30 22:49:13 -06:00
parent 5f1b681549
commit 32bcac2147
1 changed files with 6 additions and 3 deletions
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9
src/calibre/gui2/actions/delete.py
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@ -161,9 +161,12 @@ class DeleteAction(InterfaceAction):
continue
bfmts = set([x.lower() for x in bfmts.split(',')])
rfmts = bfmts - set(fmts)
for fmt in rfmts:
self.gui.library_view.model().db.remove_format(id, fmt,
index_is_id=True, notify=False)
if bfmts - rfmts:
# Do not delete if it will leave the book with no
# formats
for fmt in rfmts:
self.gui.library_view.model().db.remove_format(id, fmt,
index_is_id=True, notify=False)
self.gui.library_view.model().refresh_ids(ids)
self.gui.library_view.model().current_changed(self.gui.library_view.currentIndex(),
self.gui.library_view.currentIndex())