Django Model ForeignKey

Question

If I want to add a Foreignkey to a model from another class in the same model e.g.

class1 (models.Model):
    variable1 = models.IntegerField()
class2 (models.Model):
    variable2 = models.CharField()
    foreignkey = models.Foreignkey(class1.variable1)

Is that possible? Does that make sense as a programming move?

This ForeignKey would be an ID Number (like a primary key) that I would like to import to other classes as well.

@ Manoj Govindan:

e.g.

class author(models.Model):
    authorlabel= models.IntegerField() # With choices
    ...

class books(models.Model):
    books=models.CharField()
    foreignkey= models.Foreignkey(author.authorlabel)

So that I have that data available in that table(?)/model as well.

Thanks!

Answer 1

Perhaps this is what you are looking for:

models.ForeignKey(class1, to_field = 'variable1')

Relevant documentation is here.

This ForeignKey would be an ID Number (like a primary key) that I would like to import to other classes as well.

Not sure what you mean by this. Can you rephrase it and add an example?

Answer 2

Addition to Manoj Govindan's answer...

This ForeignKey would be an ID Number (like a primary key) that I would like to import to other classes as well.

No it do not have to be a number, it can be a string, a datetime value or something else... But it have to be unique.