diff --git a/cli.py b/cli.py
index 93eebc0..d9f8078 100755
--- a/cli.py
+++ b/cli.py
@@ -22,7 +22,7 @@
 import sys, cmd, argparse, getpass, time
 import config
 
-from db import get_store, Folder
+from db import get_store, Folder, User
 from managers.folder import FolderManager
 from managers.user import UserManager
 from scanner import Scanner
@@ -178,7 +178,7 @@ class CLI(cmd.Cmd):
 
 	def user_list(self):
 		print 'Name\t\tAdmin\tEmail\n----\t\t-----\t-----'
-		print '\n'.join('{0: <16}{1}\t{2}'.format(u.name, '*' if u.admin else '', u.mail) for u in db.User.query.all())
+		print '\n'.join('{0: <16}{1}\t{2}'.format(u.name, '*' if u.admin else '', u.mail) for u in self.__store.find(User))
 
 	def user_add(self, name, admin, password, email):
 		if not password:
@@ -187,26 +187,26 @@ class CLI(cmd.Cmd):
 			if password != confirm:
 				print >>sys.stderr, "Passwords don't match"
 				return
-		status = UserManager.add(name, password, email, admin)
+		status = UserManager.add(self.__store, name, password, email, admin)
 		if status != UserManager.SUCCESS:
 			print >>sys.stderr, UserManager.error_str(status)
 
 	def user_delete(self, name):
-		user = db.User.query.filter(db.User.name == name).first()
+		user = self.__store.find(User, User.name == name).one()
 		if not user:
 			print >>sys.stderr, 'No such user'
 		else:
-			db.session.delete(user)
-			db.session.commit()
+			self.__store.remove(user)
+			self.__store.commit()
 			print "User '{}' deleted".format(name)
 
 	def user_setadmin(self, name, off):
-		user = db.User.query.filter(db.User.name == name).first()
+		user = self.__store.find(User, User.name == name).one()
 		if not user:
 			print >>sys.stderr, 'No such user'
 		else:
 			user.admin = not off
-			db.session.commit()
+			self.__store.commit()
 			print "{0} '{1}' admin rights".format('Revoked' if off else 'Granted', name)
 
 	def user_changepass(self, name, password):
@@ -216,7 +216,7 @@ class CLI(cmd.Cmd):
 			if password != confirm:
 				print >>sys.stderr, "Passwords don't match"
 				return
-		status = UserManager.change_password2(name, password)
+		status = UserManager.change_password2(self.__store, name, password)
 		if status != UserManager.SUCCESS:
 			print >>sys.stderr, UserManager.error_str(status)
 		else:
diff --git a/managers/user.py b/managers/user.py
index b748a29..610035b 100644
--- a/managers/user.py
+++ b/managers/user.py
@@ -31,7 +31,7 @@ class UserManager:
 	WRONG_PASS = 4
 
 	@staticmethod
-	def get(uid):
+	def get(stotre, uid):
 		if type(uid) in (str, unicode):
 			try:
 				uid = uuid.UUID(uid)
@@ -42,40 +42,47 @@ class UserManager:
 		else:
 			return UserManager.INVALID_ID, None
 
-		user = User.query.get(uid)
+		user = store.get(User, uid)
 		if user is None:
 			return UserManager.NO_SUCH_USER, None
 
 		return UserManager.SUCCESS, user
 
 	@staticmethod
-	def add(name, password, mail, admin):
-		if User.query.filter(User.name == name).first():
+	def add(store, name, password, mail, admin):
+		if store.find(User, User.name == name).one():
 			return UserManager.NAME_EXISTS
 
 		password = UserManager.__decode_password(password)
 		crypt, salt = UserManager.__encrypt_password(password)
-		user = User(name = name, mail = mail, password = crypt, salt = salt, admin = admin)
-		session.add(user)
-		session.commit()
+
+		user = User()
+		user.name = name
+		user.mail = mail
+		user.password = crypt
+		user.salt = salt
+		user.admin = admin
+
+		store.add(user)
+		store.commit()
 
 		return UserManager.SUCCESS
 
 	@staticmethod
-	def delete(uid):
-		status, user = UserManager.get(uid)
+	def delete(store, uid):
+		status, user = UserManager.get(store, uid)
 		if status != UserManager.SUCCESS:
 			return status
 
-		session.delete(user)
-		session.commit()
+		store.remove(user)
+		store.commit()
 
 		return UserManager.SUCCESS
 
 	@staticmethod
-	def try_auth(name, password):
+	def try_auth(store, name, password):
 		password = UserManager.__decode_password(password)
-		user = User.query.filter(User.name == name).first()
+		user = store.find(User, User.name == name).one()
 		if not user:
 			return UserManager.NO_SUCH_USER, None
 		elif UserManager.__encrypt_password(password, user.salt)[0] != user.password:
@@ -84,8 +91,8 @@ class UserManager:
 			return UserManager.SUCCESS, user
 
 	@staticmethod
-	def change_password(uid, old_pass, new_pass):
-		status, user = UserManager.get(uid)
+	def change_password(store, uid, old_pass, new_pass):
+		status, user = UserManager.get(store, uid)
 		if status != UserManager.SUCCESS:
 			return status
 
@@ -96,18 +103,18 @@ class UserManager:
 			return UserManager.WRONG_PASS
 
 		user.password = UserManager.__encrypt_password(new_pass, user.salt)[0]
-		session.commit()
+		store.commit()
 		return UserManager.SUCCESS
 
 	@staticmethod
-	def change_password2(name, new_pass):
-		user = User.query.filter(User.name == name).first()
+	def change_password2(store, name, new_pass):
+		user = store.find(User, User.name == name).one()
 		if not user:
 			return UserManager.NO_SUCH_USER
 
 		new_pass = UserManager.__decode_password(new_pass)
 		user.password = UserManager.__encrypt_password(new_pass, user.salt)[0]
-		session.commit()
+		store.commit()
 		return UserManager.SUCCESS
 
 	@staticmethod