You sure you want an explicit third option 'no information on the
subject'? Wouldn't it be better to just have a radio group with 2
buttons (Yes/No or True/False) with a default value of NULL for that
field in your database? Or if you really want to have a third option
to force a user to enter something, mapping to a value other than
empty string or 'null' might be wise, as depending on how your db
field is defined, these may not be distinguishable from 'no data
entered'. The 'right' solution really depends on the particular logic
of your application - what data your users should enter and how that
data will be used and analysed once it's in the database.
On Jul 30, 12:40 am, "rich...@home" <richardath...@gmail.com> wrote:
> I'd use a drop down select instead of an option group.
>
> This should do the trick:
>
> <?php echo $form->input("Model.field", array("options"=>array(""=>"No
> information on subject", true=>"True", false=>"False))); ?>
>
> On Jul 29, 12:29 pm, Kanten <anders.ho...@gmail.com> wrote:
>
>
>
> > Is there really noone, that can help me with this one?
>
> > Thanks
> > Anders
>
> > On Jul 10, 1:49 pm, Kanten <anders.ho...@gmail.com> wrote:
>
> > > Hi,
>
> > > I am making a database for research and for this project I have a lot
> > > of dichotomous (binary) variables where I need to be able to
> > > discrimate between true, false and "no information on
> > > subject" (=null). I would like to store it as a bool field in MySQL.
> > > User interface wise I was thinking of using radio buttons with the
> > > option of choosing between the three posibilities.
>
> > > Is there some easy way of doing this using the builtin form helper, or
> > > do I need to to modify it somehow?
>
> > > Thanks
> > > Anders
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