Combine checkbox fields into a checkbox group

I have multiple database fields shown as checkboxes in a form. I'd like to collect them into a checkbox group in order to validate that at least one of them is being seleced.

I can't find a way to accomplish this. I tried to define the checkbox fields as checkbox group but this comes out as multiple checkbox groups instead of one group with multiple checkboxes...

Thanks for any help.

a checkbox group is a collection of checkboxes, all with the same name. For a checkbox group to work correctly, the name needs to end with []. for example:

<label>
      <input type="checkbox" name="checkGroupA[]" value="1" id="checkGroupA_0" />
      One</label>
    <br />
    <label>
      <input type="checkbox" name="checkGroupA[]" value="2" id="checkGroupA_1" />
      Two</label>
    <br />
    <label>
      <input type="checkbox" name="checkGroupA[]" value="3" id="checkGroupA_2" />
      Three</label>

Thx. But why is there a checkboxgroup configuration in DataAssist Pages when it can't be used to enter data into the database? Or do I miss here something? That's confusing.

I try to build the basic form with DataAssist, the CheckboxGroup with Fombuilder and try to finish a running form buy moving the FB code to the DA Form. But Validation is not working correctly so far ...

Is a checkbox group the right way to go for this problem at all?

  Thx. But why is there a checkboxgroup configuration in DataAssist Pages when it can't be used to enter data into the database? Or do I miss here something? That's confusing.  

Well, a checkbox group can be used to enter data to the database. A checkbox group is basically the same idea as a multiple select list. It allows the user to choose multiple options and store the values into a column of your database table

  Is a checkbox group the right way to go for this problem at all?  

i don't know. What exactly is it you are trying to accomplish?

I've got 5 database fields (tinyint). In the users form there will be 5 checkboxes for these database fields. What I try to accomplish is a validation on these 5 checkboxes that at least one of them has to be selected by the user.

This would require custom code to accomplish.

you could validate the checkboxes using the following code:

<?php

if($_SERVER['REQUEST_METHOD'] == "POST") {

if((!isset($_POST['field1']) || $_POST['field1'] == "") && (!isset($_POST['field2']) || $_POST['field2'] == "") && (!isset($_POST['field3']) || $_POST['field3'] == "") && (!isset($_POST['field4']) || $_POST['field4'] == "") && (!isset($_POST['field5']) || $_POST['field5'] == "")) {

        @session_start();

        $_SESSION['failed'] = "true";

        header("Location: ". $_SERVER['PHP_SELF']);

        exit;

    }

}

?>

this assumes the checkboxes are named "field1", "field2", "field3", "field4", and "field5"


then use this code to show an error message;

<?php @session_start(); if(isset($_SESSION['failed']) && $_SESSION['failed'] == "true") { ?>At least one box must be checked<?php unset($_SESSION['failed']); } ?>

Thx Jason I'll try this out

The code works but all the other data entered (into the other fields) by the customer will be lost.

How can I keep the field data alive and/or how can I validate the checkboxes before the form is been submitted?

Thanks for any help.

are you using server validations to validate other fields on the fields on the form?

or are the checkboxes the only fields you want to validate?