on_model_change/on_model_delete does not work

[BohdanSizomin]

class SensorAdmin(ModelView, model=Sensor):
    """Class for setting up the Admin panel for the Sensor model"""

    async def on_model_change(self, data, model, is_created):
        # Perform some other action
        print(model)
        ...

    async def on_model_delete(self, model):
        # Perform some other action
        print(model)
        ...

    # Permission
    can_create = True
    can_edit = True
    can_view_details = True

    # Metadata
    name = "Sensor"
    name_plural = "Sensor"
    icon = "fa-solid fa-sensor"
    column_list: list = [Sensor.uuid, Sensor.name, Sensor.is_virtual, Sensor.created_at]
    column_searchable_list: list = [Sensor.name]
    column_sortable_list: list = [Sensor.name, Sensor.is_virtual, Sensor.created_at]
    form_columns: list = [
        Sensor.serial_number,
        Sensor.is_virtual,
        Sensor.name,
    ]
    # Details
    column_details_list: list = [
        Sensor.uuid,
        Sensor.name,
        Sensor.is_virtual,
        Sensor.created_at,
    ]

    # Pagination
    page_size = 50
    page_size_options = [50, 100, 200]

Hello,
My code is above

All I want is to calculate the field based on another field

But unfortunately whenever I'm creating/deleting a model those methods are not being called
Maybe I`m doing something wrong ?
I really appreciate any help you can provide

[sehraramiz]

can you provide the Sensor model? i tested a example UserAdmin with the example User model (with configs like your's) and callback methods work, i think the problem might be in your Sensor model.

class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True)
    name = Column(String)

class UserAdmin(ModelView, model=User):
    async def on_model_change(self, data, model, is_created):
        # Perform some other action
        print(model, " changed")

    async def on_model_delete(self, model):
        # Perform some other action
        print(model, " deleted")

    can_create = True
    can_edit = True
    can_view_details = True

    column_list = [User.id, User.name]
    column_sortable_list = [User.name, User.id]
    name = "User"
    name_plural = "User"
    icon = "fa-solid fa-sensor"
    column_searchable_list: list = [User.name]
    form_columns: list = [User.name]
    column_details_list: list = [User.id, User.name]

    page_size = 50
    page_size_options = [50, 100, 200]