diff --git a/cps/gdriveutils.py b/cps/gdriveutils.py
index 66afed71..2d2f1ddb 100644
--- a/cps/gdriveutils.py
+++ b/cps/gdriveutils.py
@@ -21,7 +21,7 @@ Base = declarative_base()
 # Open session for database connection
 Session = sessionmaker()
 Session.configure(bind=engine)
-session = Session()
+session = scoped_session(Session)
 
 class GdriveId(Base):
     __tablename__='gdrive_ids'
@@ -29,16 +29,33 @@ class GdriveId(Base):
     id = Column(Integer, primary_key=True)
     gdrive_id = Column(Integer, unique=True)
     path = Column(String)
+    __table_args__ = (UniqueConstraint('gdrive_id', 'path', name='_gdrive_path_uc'),)
 
     def __repr__(self):
         return str(self.path)
 
+def migrate():
+    for sql in session.execute("select sql from sqlite_master where type='table'"):
+        if 'CREATE TABLE gdrive_ids' in sql[0]:
+            currUniqueConstraint='UNIQUE (gdrive_id)'
+            if currUniqueConstraint in sql[0]:
+                sql=sql[0].replace(currUniqueConstraint, 'UNIQUE (gdrive_id, path)')
+                sql=sql.replace(GdriveId.__tablename__, GdriveId.__tablename__+ '2')
+                session.execute(sql)
+                session.execute('INSERT INTO gdrive_ids2 (id, gdrive_id, path) SELECT id, gdrive_id, path FROM gdrive_ids;')
+                session.commit()
+                session.execute('DROP TABLE %s' % 'gdrive_ids')
+                session.execute('ALTER TABLE gdrive_ids2 RENAME to gdrive_ids')
+            break
+
 if not os.path.exists(dbpath):
     try:
         Base.metadata.create_all(engine)
     except Exception:
         raise
 
+migrate()
+
 def getDrive(gauth=None):
     if not gauth:
         gauth=GoogleAuth(settings_file='settings.yaml')
diff --git a/cps/helper.py b/cps/helper.py
index 54fa1946..2e365c2f 100755
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -28,6 +28,8 @@ import shutil
 import requests
 import zipfile
 from tornado.ioloop import IOLoop
+import gdriveutils as gd
+import web
 
 try:
     import unidecode
@@ -280,6 +282,30 @@ def update_dir_stucture(book_id, calibrepath):
         book.path = new_authordir + '/' + book.path.split('/')[1]
     db.session.commit()
 
+def update_dir_structure_gdrive(book_id):
+    db.session.connection().connection.connection.create_function("title_sort", 1, db.title_sort)
+    book = db.session.query(db.Books).filter(db.Books.id == book_id).first()
+    
+    authordir = book.path.split('/')[0]
+    new_authordir = get_valid_filename(book.authors[0].name)
+    titledir = book.path.split('/')[1]
+    new_titledir = get_valid_filename(book.title) + " (" + str(book_id) + ")"
+    
+    if titledir != new_titledir:
+        print (titledir)
+        gFile=gd.getFileFromEbooksFolder(web.Gdrive.Instance().drive,os.path.dirname(book.path),titledir)
+        gFile['title']= new_titledir
+        gFile.Upload()
+        book.path = book.path.split('/')[0] + '/' + new_titledir
+    
+    if authordir != new_authordir:
+        gFile=gd.getFileFromEbooksFolder(web.Gdrive.Instance().drive,None,authordir)
+        gFile['title']= new_authordir
+        gFile.Upload()
+        book.path = new_authordir + '/' + book.path.split('/')[1]
+
+    db.session.commit()
+
 class Updater(threading.Thread):
 
     def __init__(self):
diff --git a/cps/web.py b/cps/web.py
index 6b7a329d..ba0a7940 100755
--- a/cps/web.py
+++ b/cps/web.py
@@ -2443,7 +2443,10 @@ def edit_book(book_id):
             for author in book.authors:
                 author_names.append(author.name)
             for b in edited_books_id:
-                helper.update_dir_stucture(b, config.config_calibre_dir)
+                if config.config_use_google_drive:
+                    helper.update_dir_structure_gdrive(b)
+                else:
+                    helper.update_dir_stucture(b, config.config_calibre_dir)
             if config.config_use_google_drive:
                 updateGdriveCalibreFromLocal()
             if "detail_view" in to_save:
@@ -2538,8 +2541,7 @@ def upload():
         for author in db_book.authors:
             author_names.append(author.name)
         if config.config_use_google_drive:
-            if not current_user.role_edit() and not current_user.role_admin():
-                updateGdriveCalibreFromLocal()
+            updateGdriveCalibreFromLocal()
     cc = db.session.query(db.Custom_Columns).filter(db.Custom_Columns.datatype.notin_(db.cc_exceptions)).all()
     if current_user.role_edit() or current_user.role_admin():
         return render_title_template('book_edit.html', book=db_book, authors=author_names, cc=cc,
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..10f231bc
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+google-api-python-client==1.6.1
+httplib2==0.9.2
+lxml==3.7.2
+oauth2client==4.0.0
+pyasn1==0.1.9
+pyasn1-modules==0.0.8
+PyDrive==1.3.1
+PyYAML==3.12
+rsa==3.4.2
+six==1.10.0
+uritemplate==3.0.0