Re: Is it possible to extend the model in another application without explicitly changing firs-one?

It is indeed possible, but I am not sure whether it should be done this way. 

On Thu, Feb 27, 2020 at 11:04 PM Ol P <olp@global-mediator.com> wrote:

I try to figure out if it possible to implement the next scenario:

garage (app-A)
 models
   class Vehicle(models.Model)
     vin=models.CharField(max_length=50)
     ...

     def import_data(self):
        ...
        # import vehicals


external integration (app-B)
 models
   class ExtendedVehicle(Vehicle)
     external_field=models.CharField(max_length=50)

     def import_data(self):
        super(ExtendedVehicle, self).import_data()

        self.import_external_field()

     def import_external_field(self):
        ...
        # import external_field

Something like this.

On Thursday, February 27, 2020 at 7:11:20 PM UTC+2, Jin wrote:

One-time class definition is always good choice, I won't do it like that.
But can you share the detailed scenario you are gonna implement?

On Fri, Feb 28, 2020 at 1:03 AM Ol P <o...@global-mediator.com> wrote:

I want to extend model-A from app-B without modification of app-A
For example, add a field or new methods or override existing.

On Thursday, February 27, 2020 at 6:54:37 PM UTC+2, Jin wrote:

Not sure if I understand the question correctly, but are you trying to use model-A in app-B?

On Fri, Feb 28, 2020 at 12:33 AM Ol P <o...@global-mediator.com> wrote:

Imagen we have app-A and app-B with model-A and model-B accordingly.

And we want to extend model-A in app-B.

What should be written in model-B to implement it?

In other words, is it possible to implement the same-table extension?

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