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Dedupe song object checking

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This commit is contained in:
Jon Tibble 2011-02-03 01:55:12 +00:00
parent f4d25560e9
commit e9ea8fd8cc
1 changed files with 15 additions and 38 deletions
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53
openlp/plugins/songs/forms/songmaintenanceform.py
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@ -159,66 +159,43 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
def checkAuthor(self, new_author, edit=False):
"""
Returns *False* if the given Author already exists, otherwise *True*.
``edit``
If we edit an item, this should be *True*.
"""
authors = self.manager.get_all_objects(Author,
and_(Author.first_name == new_author.first_name,
Author.last_name == new_author.last_name,
Author.display_name == new_author.display_name))
# Check if this author already exists.
if len(authors) > 0:
# If we edit an existing Author, we need to make sure that we do
# not return False when nothing has changed.
if edit:
for author in authors:
if author.id != new_author.id:
return False
return True
else:
return False
else:
return True
return self.__checkObject(authors, new_author, edit)
def checkTopic(self, new_topic, edit=False):
"""
Returns *False* if the given Topic already exists, otherwise *True*.
``edit``
If we edit an item, this should be *True*.
"""
topics = self.manager.get_all_objects(Topic,
Topic.name == new_topic.name)
if len(topics) > 0:
# If we edit an existing Topic, we need to make sure that we do
# not return False when nothing has changed.
if edit:
for topic in topics:
if topic.id != new_topic.id:
return False
return True
else:
return False
else:
return True
return self.__checkObject(topics, new_topic, edit)
def checkBook(self, new_book, edit=False):
"""
Returns *False* if the given Topic already exists, otherwise *True*.
``edit``
If we edit an item, this should be *True*.
"""
books = self.manager.get_all_objects(Book,
and_(Book.name == new_book.name,
Book.publisher == new_book.publisher))
if len(books) > 0:
# If we edit an existing Book, we need to make sure that we do
return self.__checkObject(books, new_book, edit)
def __checkObject(self, objects, new_object, edit):
"""
Utility method to check for an existing object.
``edit``
If we edit an item, this should be *True*.
"""
if len(objects) > 0:
# If we edit an existing object, we need to make sure that we do
# not return False when nothing has changed.
if edit:
for book in books:
if book.id != new_book.id:
for object in objects:
if object.id != new_object.id:
return False
return True
else: