[Answer]-Having one simple model for generic information and other that plug more fields in it

Have you looked into model inheritance?

If not, its probably time you give it a read. https://docs.djangoproject.com/en/dev/topics/db/models/#model-inheritance

They way it works at the implementation level is, you define a “base” class which contains all the base details.

A very simplified example might be something like this

class Item(models.Model):
    name = models.CharField()
    price = models.CharField()
    location = models.CharField()
    catgegory = models.CharField()

    class Meta:
        abstract = True

class Computer(Item):
    CPU = models.CharField()
    RAM = models.CharField()
    HDD = models.CharField()

The abstract = True line indicates that Django shouldn’t make a database table for it. Its a generic base class for other classes to extend.

Because the Computer class inherits from the Item class, it has access to all its attributes . You can even extend the computer class into two Desktop and Laptop classes.

If you don’t already know about inheritance, I strongly suggest reading more about it. Wikipedia is always a good place to start 🙂

http://en.wikipedia.org/wiki/Inheritance_(object-oriented_programming)