I want to write a CRUD page looked like the attached picture.
My purpose is showing order information with item list in one page (in other words, two tables in one page),
after edit when I press update button it will update both order information and product list information.
I tried to search related topics,
set_model() may be the closest solution but there will be a problem if I am using it.
If I update one of the items, it will copy the same information to other items.
If it is impossible to include two tables without using set_model() function,
should I use an iframe to separate two tables? (Put Item Information in the iframe)
Or any other method to solve this problem?
Thanks for answering my question and sorry for my bad English.