Acces field of other product.template

Question

Hello everybody!
I have created 2 classes which are really similar:
class A(models.Model):
_name = 'product.template'
_inherit = 'product.template'
file = fields.Binary(_('File'), required=False)
class B(models.Model):
_name = "product.template"
_inherit = 'product.template'
....
...
my_file = self.env['product.template'].file
I
want to access the file field of class A from class B but I always get
value none/False eventhough i have a file uploaded. I tried with other
custom fields also but what

Alex Lazich · Accepted Answer

Because both of your models are inheriting the same base model, your initial field, file, will already exist and can be accessed through the file field in model B.
If you want to duplicate the file onto another field you may want to try assigning a default:
my_file = fields.Binary(....... default=self.file)

thompsonn · Answer

I don't think you really need self.env['product.template'] here, it should probably just look like my_file = self.file

Balazs · Answer

Thank you for your answer.
That was the first what i have tried, but i still get the none/False eventhough i have a file uploaded. I tried also to inherit class B from class A, still no effect.
I may have to read it directly from database?!

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