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use database for checking

This commit is contained in:
andreas 2010-07-12 15:18:07 +02:00
parent 488ead8162
commit 75f9f809a8
1 changed files with 98 additions and 65 deletions
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163
openlp/plugins/songs/forms/songmaintenanceform.py
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@ -24,6 +24,7 @@
###############################################################################
from PyQt4 import QtGui, QtCore
from sqlalchemy.sql import and_
from openlp.core.lib import translate
from openlp.plugins.songs.forms import AuthorsForm, TopicsForm, SongBookForm
@ -136,57 +137,74 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
def checkAuthor(self, new_author, edit=False):
"""
Returns True when the given Author is already in the list elsewise False.
Returns False when the given Author is already in the list elsewise
True.
"""
authors = self.songmanager.get_all_objects(Author)
author_exists = False
for author in authors:
if author.fist_name == new_author.first_name and \
author.last_name == new_author.last_name and \
author.display_name == new_author.display_name:
author_exists = True
#If we edit an existing Author, we need to make sure that we do
#not return True when nothing has changed (because this would
#cause an error message later on)
if edit:
if new_author.id == author.id:
author_exists = False
return author_exists
authors = self.songmanager.get_all_objects_filtered(Author,
and_(
Author.first_name == new_author.first_name,
Author.last_name == new_author.last_name,
Author.display_name == new_author.display_name
)
)
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 (because this would
# cause an error message later on).
if edit:
if authors[0].id == new_author.id:
return True
else:
return False
else:
return False
else:
return True
def checkTopic(self, new_topic, edit=False):
"""
Returns True when the given Topic is already in the list elsewise False.
Returns False when the given Topic is already in the list elsewise True.
"""
topics = self.songmanager.get_all_objects(Topic)
topic_exists = False
for topic in topics:
if topic.name == new_topic.name:
topic_exists = True
#If we edit an existing Topic, we need to make sure that we do
#not return True when nothing has changed (because this would
#cause an error message later on)
if edit:
if new_topic.id == topic.id:
topic_exists = False
return topic_exists
topics = self.songmanager.get_all_objects_filtered(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 (because this would
# cause an error message later on).
if edit:
if topics[0].id == new_topic.id:
return True
else:
return False
else:
return False
else:
return True
def checkBook(self, new_book, edit=False):
"""
Returns True when the given Book is already in the list elsewise False.
Returns False when the given Book is already in the list elsewise True.
"""
books = self.songmanager.get_all_objects(Book)
book_exists = False
for book in books:
if book.publisher == new_book.publisher and \
book.name == new_book.name:
book_exists = True
#If we edit an existing Book, we need to make sure that we do
#not return True when nothing has changed (because this would
#cause an error message later on)
books = self.songmanager.get_all_objects_filtered(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
# not return False when nothing has changed (because this would
# cause an error message later on).
if edit:
if new_book.id == book.id:
book_exists = False
return book_exists
if books[0].id == new_book.id:
return True
else:
return False
else:
return False
else:
return True
def onAuthorAddButtonClick(self):
self.authorform.setAutoDisplayName(True)
@ -195,9 +213,9 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
first_name=unicode(self.authorform.FirstNameEdit.text()),
last_name=unicode(self.authorform.LastNameEdit.text()),
display_name=unicode(self.authorform.DisplayEdit.text()))
if not self.checkAuthor(author) and \
self.songmanager.save_object(author):
self.resetAuthors()
if self.checkAuthor(author):
if self.songmanager.save_object(author):
self.resetAuthors()
else:
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
@ -207,9 +225,9 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
def onTopicAddButtonClick(self):
if self.topicform.exec_():
topic = Topic.populate(name=unicode(self.topicform.NameEdit.text()))
if not self.checkTopic(topic) and \
self.songmanager.save_object(topic):
self.resetTopics()
if self.checkTopic(topic):
if self.songmanager.save_object(topic):
self.resetTopics()
else:
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
@ -221,8 +239,9 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
book = Book.populate(
name=unicode(self.bookform.NameEdit.text()),
publisher=unicode(self.bookform.PublisherEdit.text()))
if not self.checkBook(book) and self.songmanager.save_object(book):
self.resetBooks()
if self.checkBook(book):
if self.songmanager.save_object(book):
self.resetBooks()
else:
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
@ -233,27 +252,30 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
author_id = self._getCurrentItemId(self.AuthorsListWidget)
if author_id != -1:
author = self.songmanager.get_object(Author, author_id)
# Just make sure none of the fields is None
if author.first_name is None:
author.first_name = u''
if author.last_name is None:
author.last_name = u''
if author.display_name is None:
author.display_name = u''
self.authorform.setAutoDisplayName(False)
self.authorform.FirstNameEdit.setText(author.first_name)
self.authorform.LastNameEdit.setText(author.last_name)
self.authorform.DisplayEdit.setText(author.display_name)
# Save the author's first and last name as well as the display name
# for the case that they have to be restored.
temp_first_name = author.first_name
temp_last_name = author.last_name
temp_display_name = author.display_name
if self.authorform.exec_(False):
author.first_name = unicode(
self.authorform.FirstNameEdit.text())
author.last_name = unicode(self.authorform.LastNameEdit.text())
author.display_name = unicode(
self.authorform.DisplayEdit.text())
if not self.checkAuthor(author, True) and \
self.songmanager.save_object(author):
self.resetAuthors()
if self.checkAuthor(author, True):
if self.songmanager.save_object(author):
self.resetAuthors()
else:
# We restore the author's old first and last name as well as
# his display name.
author.first_name = temp_first_name
author.last_name = temp_last_name
author.display_name = temp_display_name
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
translate('SongsPlugin.SongMaintenanceForm',
@ -264,12 +286,16 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
if topic_id != -1:
topic = self.songmanager.get_object(Topic, topic_id)
self.topicform.NameEdit.setText(topic.name)
# Save the topic's name for the case that he has to be restored.
temp_name = topic.name
if self.topicform.exec_(False):
topic.name = unicode(self.topicform.NameEdit.text())
if not self.checkTopic(topic, True) and \
self.songmanager.save_object(topic):
self.resetTopics()
if self.checkTopic(topic, True):
if self.songmanager.save_object(topic):
self.resetTopics()
else:
# We restore the topics's old name.
topic.name = temp_name
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
translate('SongsPlugin.SongMaintenanceForm',
@ -281,13 +307,20 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
book = self.songmanager.get_object(Book, book_id)
self.bookform.NameEdit.setText(book.name)
self.bookform.PublisherEdit.setText(book.publisher)
# Save the book's name and publisher for the case that they have to
# be restored.
temp_name = book.name
temp_publisher = book.publisher
if self.bookform.exec_(False):
book.name = unicode(self.bookform.NameEdit.text())
book.publisher = unicode(self.bookform.PublisherEdit.text())
if not self.checkBook(book, True) and \
self.songmanager.save_object(book):
self.resetBooks()
if self.checkBook(book, True):
if self.songmanager.save_object(book):
self.resetBooks()
else:
# We restore the book's old name and publisher.
book.name = temp_name
book.publisher = temp_publisher
QtGui.QMessageBox.critical(self,
translate('SongsPlugin.SongMaintenanceForm', 'Error'),
translate('SongsPlugin.SongMaintenanceForm',