[FEA] Added Conroller for sanity

app/controller/__init__.py

@@ -18,10 +18,14 @@ class LibraryController:
         else:
             self._engine = engine
         self._Session = sessionmaker(bind=self.engine)
+        self._session = self._Session()
         self._library = None
         if library_id is not None:
             self.read(library_id)
 
+    def __del__(self):
+        self.session.close()
+
     @property
     def data(self):
         return self._library
@@ -36,25 +40,20 @@ class LibraryController:
     
     @property
     def session(self):
-        return self.Session()
+        return self._session
     
     def create(self, library:Library):
-        with self.session as session:
-            self._library = create(session, library)
+        self._library = create(self.session, library)
         return self
     
     def read(self, _id):
-        with self.session as session:
-            self._library = read(session, _id, Library)
+        self._library = read(self.session, _id, Library)
         return self
         
     def update(self):
-        with self.session as session:
-            session.commit()
+        self.session.commit()
 
     def delete(self):
-        with self.session as session:
-            delete(session, self)
-            del(self)
+        delete(self.session, self)
+        del(self)
 
-