sql_app: Implemented access list counter:

A counter is associated with every
	Iot Device. The counter is always increment
	when a user is allowed or disallowed to use
	the device, hence, ensuring coherency.
	It is also now exposed in the
	IotDoorPollingRequest schema, enabling the
	Iot Device to fetch the new access list.

Signed-off-by: HeshamTB <hishaminv@gmail.com>

sql_app/crud.py

@@ -142,3 +142,10 @@ def record_room_sensor_data(db: Session, entry: schemas.IotMonitorRoomInfo):
     db.add(db_item)
     db.commit()
     db.refresh(db_item)
+
+def increment_door_access_list_counter(db: Session, iot_entity: models.IotEntity):
+    #setattr(iot_entity, "acces_list_counter", iot_entity.acces_list_counter + 1)
+    iot_entity.acces_list_counter = iot_entity.acces_list_counter + 1
+    db.add(iot_entity)
+    db.commit()
+    db.refresh(iot_entity)

sql_app/main.py

@@ -113,6 +113,7 @@ def allow_user_for_iot_entity_by_id(request: schemas.UserAllowForIotEntityReques
     if not res:
         raise HTTPException(status_code=500, detail="Could not complete operation")
 
+    crud.increment_door_access_list_counter(db, iot_entity)
     return
 
 @app.post("/admin/users/disallowdevice/id", tags=['Admin'])
@@ -129,6 +130,7 @@ def disallow_user_for_iot_entity_by_id(request: schemas.UserAllowForIotEntityReq
     if not res:
         raise HTTPException(status_code=500, detail="Could not complete operation")
     
+    crud.increment_door_access_list_counter(db, iot_entity)
     return
 
 @app.post("/admin/users/allowdevice/name", tags=['Admin'])

sql_app/models.py

@@ -16,7 +16,6 @@ class User(Base):
     last_token = Column(String, nullable=True)
 
     authorized_devices = relationship("IotEntity", secondary="user_iot_link", back_populates="authorized_users")
-    #authorized_devices = relationship("IotEntity", secondary= 'user_iot_link')
 
 
 class IotEntity(Base):
@@ -27,8 +26,8 @@ class IotEntity(Base):
     description = Column(String(512))
     open_request = Column(Boolean, default=False)
     time_seconds = Column(Integer, default=10)
+    acces_list_counter = Column(Integer, default=0)
     authorized_users = relationship("User", secondary="user_iot_link", back_populates="authorized_devices")
-    #authorized_users = relationship("User", secondary= 'user_iot_link')
 
 class UserAuthToIoTDev(Base):
     __tablename__ = "user_iot_link"

sql_app/schemas.py

@@ -26,6 +26,7 @@ class IotEntity(IotEntityBase):
     #authorized_users: List[User] = []
     open_request: bool # Flag to open
     time_seconds: int
+    acces_list_counter: int
     class Config:
         orm_mode = True