Convert all tuples to choice classes

[sainak]

currently the choices are defined as list of tuples and in some places we have to reverse them as well which does not properly indicate what the value of the particular choice is, so instead we should use django textchoices and integerchoices

[DraKen0009]

I would like to work on this issue.

[itxsoumya]

Could you plz assign this issue to me .

[DraKen0009]

@itxsoumya I've already started working on this and partly done as well. Can you please find any other open issue to work on? It'll prevent duplication of efforts.Thanks

[itxsoumya]

@sainak can I take on this issue

[ghost]

Hey @sainak If no one is working, can I try this issue ?