New module for threaded functions

threaded.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+import sorter
+import database
+
+from PyQt5 import QtCore
+
+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)