jegelstaff/formulize — pull request #12 by eikonos (2013-12-09 07:45:20+00:00)
Title: Add a procedure which can modify values before each form entry is saved.

This is similar to the derived value formulas, except that it is run just before a form entry is saved. It can be used to validate, for example, that a date entry is a valid date. It could be used for complex validation where multiple fields are considered.