How to make multiple values ​​for one field in Django?

Question

Django

Good afternoon!
I am a beginner, so do not be surprised if you see obvious blunders in what is written.
I make a product model in an online store. A product has characteristics, such as color or size, where there can be multiple values. I have 2 thoughts on how to do this:
1. Add to the product model and fill in as needed:
color1 = models.CharField(max_length=100, choices=ALL_COLORS, blank=True)
color2 = models.CharField(max_length=100, choices =ALL_COLORS, blank=True)
2. Make
colors = models.ManyToManyField(Color, verbose_name='colors')
And make the "Color" model in addition to make it work.
But the above is just rookie speculation. The question is how to do it right?

Answer 1

Both methods
smell 1. Naming smells - well, you can normally name color_bottom, color_top
2. It smells like overengineering If
the products are homogeneous and they really only have color1 and color2, then it’s better

Answer 2

If PostgreSQL is used, then using JSONField is a good fit . If another DBMS, then you will have to use EAV .