how to Save costume Field in checkout process?

[gaur_ayush1421]

How To add A new Field in checkout process. and how to fetch save value in order .

I am  create a module but not save value in order field . please give me a solution..

and see what i add field 

  

 

[NemoPS]

Since you are not using the one page checkout it's gonna be complicated, I guess you can store it in a cookie, then retrieve it (and clear it) in an override of PaymentModule and store it as a new order field. Of course you need to extend the order class to account for the new field, and add the corresponding column in the database too.

[gaur_ayush1421]

Thanks For suggestion .but all think already done  and not save to database in order table.

Save data only cart table

Edited April 22, 2019 by gaur_ayush1421 (see edit history)