jQuery validation rules, conditional

[robincham]

My form contains a label with 2 checkbox inputs (id=name, name = memtype), one of which is 'guide'. I have memtype required in validation rules with an appropriate message for failing to check a box.

I also have another text input (id=sponout, name=sponout) that MUST be filled in IF memtype = 'guide'. How may I set a rule for this 'if condition' so that if a user checks memtype 'guide', but don't enter text in sponout, they receive an error message?

[VIPStephan]

Are you using a validation plugin?

[robincham]

Yes, the jquery validate plugin.

[AndrewGSW]

The docs provide the following example to create a dependency:

$(".selector").validate({
   rules: {
     contact: {
       required: true,
       email: {
         depends: function(element) {
           return $("#contactform_email:checked")
         }
       }
     }
   }
})

[robincham]

Andrew:

Thanx. Could have searched for days in jquery validation rules for that bit.

[robincham]

I track the example suggested, but it relies on a single checkbox (email). Since I have two checkboxes (outfitter, guide) $_POSTed to $memtype, I'm lost in the logic of implementing as per the example. I simply don't see how to handle the memtype checkbox choice 'guide' as 'checked' in

sponout: {
required:true,
memtype: {
depends: function(element) {
return $("#contactform_memtype:checked")
}
}
},

[robincham]

Answer is much simpler than I thought:

sponout: {
required:"#guide:checked"
}