Question

I am creating a contact details application. I want to provide users with a form with fields of city and state. I want city field to have drop down options(similar to what one gets in SQLFORM for fields with IS_IN_SET(…) validators). The state field gets populated on selection of a city if for that named city, only one state exists(without form submission). If more than two states have the same city, then a drop down list should appear. Is there any shortcut method available for that in web2py like ajax or jquery?

Answer 1

These options should get you on the right track:

• Lazy options widget
• Cascading Drop Down Lists
• Cascading Select Based on Python Lists
• Cascading Drop Down Lists with Ajax