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Reduce database calls when loading covers

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This commit is contained in:
BasioMeusPuga
2018-03-04 09:31:00 +05:30
parent ff8aecb11c
commit 0ec888e0d2
2 changed files with 40 additions and 26 deletions
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42
__main__.py
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@@ -296,7 +296,6 @@ class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
def cull_covers(self, event=None):
blank_pixmap = QtGui.QPixmap()
blank_pixmap.load(':/images/blank.png')
all_indexes = set()
for i in range(self.lib_ref.item_proxy_model.rowCount()):
@@ -321,25 +320,30 @@ class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
this_item.setIcon(QtGui.QIcon(blank_pixmap))
this_item.setData(False, QtCore.Qt.UserRole + 8)
hash_index_dict = {}
hash_list = []
for i in visible_indexes:
model_index = self.lib_ref.item_proxy_model.mapToSource(i)
this_item = self.lib_ref.view_model.item(model_index.row())
if this_item:
is_cover_already_displayed = this_item.data(QtCore.Qt.UserRole + 8)
if is_cover_already_displayed:
continue
book_hash = self.lib_ref.view_model.data(
model_index, QtCore.Qt.UserRole + 6)
cover_displayed = self.lib_ref.view_model.data(
model_index, QtCore.Qt.UserRole + 8)
book_hash = this_item.data(QtCore.Qt.UserRole + 6)
cover = database.DatabaseFunctions(
self.database_path).fetch_data(
('CoverImage',),
'books',
{'Hash': book_hash},
'EQUALS',
True)
if book_hash and not cover_displayed:
hash_list.append(book_hash)
hash_index_dict[book_hash] = model_index
self.cover_loader(this_item, cover)
all_covers = database.DatabaseFunctions(
self.database_path).fetch_covers_only(hash_list)
for i in all_covers:
book_hash = i[0]
cover = i[1]
model_index = hash_index_dict[book_hash]
book_item = self.lib_ref.view_model.item(model_index.row())
self.cover_loader(book_item, cover)
def start_culling_timer(self):
if self.settings['perform_culling']:
@@ -1104,12 +1108,16 @@ class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
Settings(self).save_settings()
self.thread = BackGroundTabUpdate(self.database_path, all_metadata)
self.thread.finished.connect(QtWidgets.qApp.exit)
self.thread.finished.connect(self.database_care)
self.thread.start()
else:
Settings(self).save_settings()
QtWidgets.qApp.exit()
self.database_care()
def database_care(self):
database.DatabaseFunctions(self.database_path).vacuum_database()
QtWidgets.qApp.exit()
def main():