New module for threaded functions

widgets.py

@@ -707,37 +707,3 @@ class MyAbsModel(QtGui.QStandardItemModel, QtCore.QAbstractItemModel):
     def __init__(self, parent=None):
         # We're using this to be able to access the match() method
         super(MyAbsModel, self).__init__(parent)
-
-
-class BackGroundTabUpdate(QtCore.QThread):
-    def __init__(self, database_path, all_metadata, parent=None):
-        super(BackGroundTabUpdate, self).__init__(parent)
-        self.database_path = database_path
-        self.all_metadata = all_metadata
-
-    def run(self):
-        hash_position_pairs = []
-        for i in self.all_metadata:
-            file_hash = i['hash']
-            position = i['position']
-            hash_position_pairs.append([file_hash, position])
-
-        database.DatabaseFunctions(
-            self.database_path).modify_position(hash_position_pairs)
-
-
-class BackGroundBookAddition(QtCore.QThread):
-    def __init__(self, parent_window, file_list, database_path, parent=None):
-        super(BackGroundBookAddition, self).__init__(parent)
-        self.parent_window = parent_window
-        self.file_list = file_list
-        self.database_path = database_path
-
-    def run(self):
-        books = sorter.BookSorter(
-            self.file_list,
-            'addition',
-            self.database_path)
-        parsed_books = books.initiate_threads()
-        database.DatabaseFunctions(self.database_path).add_to_database(parsed_books)
-        self.parent_window.lib_ref.generate_model('addition', parsed_books)