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+--- Thread: Form validation rule based on 3 fields (/showthread.php?tid=22153)
Form validation rule based on 3 fields - El Forum - 08-31-2009
[eluser]Jonas G[/eluser]
Hi all
I have a form with 3 fields: chance_1, chance_0 and chance_2. The sum of chose 3 needs to be exactly 100. What is the best way to do this?
Is it possible to have a callback function that takes 3 parameters? Is it even possible to put the VALUE of a field as the parameter of another fields' callback?
Is it possible to check this via the controller and then specifically calling the form_validation library to generate an error?
I hope to find a solid solution to the problem.
Regards
Jonas