Diego Rodrigo Neufert writes:

When using :required with a file field I got this error: Error Type: AttributeError Error Value: 'string' object has no attribute 'read'

How to make a file field required in dtml?

and anyone know how to make something like :int:required works? I need a int field to be required.... Both will not work.

":required" is implemented as a converter (which is a bug, in my view). It means "convert to a string and check, it is not whitespace only". ":int" is a converter, too. And you can only have a single converter per form variable. However, ":int" implies "required", as an empty string is not a valid integer. This means you will get a ValueError, if the form field is submitted empty, unless you used he ":ingore_empty" suffix. To check that a file was supplied, you can check *in DTML* that "<file>.filename" is non_empty: <dtml-unless "your_file_field.filename"> <!-- raise an error --> </dtml-in> Dieter