Coldfusion array from form checkbox

Question

I am trying to figure out the best way to handle this. I have a series of form fields with checkboxes for people to select options. When that gets submitted it turns form.optiongroups into an array. I then check to see if the id of the optiongroup is in the array and set the checked value to true in case there were form errors I want them to retain their checked value. This all works fine.

If I only select one option though it doesn't come through as an array, but just a regular form field. Is there a way I can handle this to make sure it is always an array?

See `sameformfieldsasarray` https://helpx.adobe.com/coldfusion/cfml-reference/application-cfc-reference/application-variables.html — SOS, Nov 29 '20 at 02:28

score 3 · Accepted Answer · edited Nov 25 '20 at 23:18

3

Actually, checkboxes get submitted as a list. You must have something else going on that creates the array.

However, to answer your question as asked, you can use ListToArray(). It would be something like this:

if (structkeyexists(form, 'optiongroups') { // if no boxes are checked the variable will be undefined.
    
    if (isArray(form.optiongroups) == false )
        form.optiongroups = ListToArray(form.optiongroups) 
    } else {  
        code for no boxes checked
    }

edited Nov 25 '20 at 23:18

rrk

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answered Nov 25 '20 at 15:53

Dan Bracuk

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thanks. I was able to piece it together from this! – spacerobot Dec 08 '20 at 16:18

score 0 · Answer 2 · answered Nov 27 '20 at 16:05

0

It could also be done via...

param form.optiongroups = "";

form.optiongroups = ListToArray(form.optiongroups);

answered Nov 27 '20 at 16:05

James A Mohler

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If you want to use a param, why not use one command instead of two? `param form.optiongroups = []` – Dan Bracuk Nov 27 '20 at 19:07
1

Because it would throw an error when I run the `ListToArray` function – James A Mohler Nov 27 '20 at 23:10

Coldfusion array from form checkbox

2 Answers2