Can I make a price set required?

Question

I am trying to create a Price Set with multiple fields, each with multiple options, and require one option from any of the fields. Is it possible to make the Price Set itself required, or can you only make individual fields required?

We have multiple pricing options for Adults, Youth, and Children so each category is its own field. I don't want to make the fields required since a single person isn't an Adult and Youth and Child. However, if I include 'none' options then it is possible for someone to have no selection at all. It appears this question has been asked before but there was no solution back then. I'm hoping there is one now.

Answer 1

As long as there’s a fee for all options then try this method –

When editing or creating a price set, enter a value in the ‘Minimum Amount’ field. In this example, I’ve entered 5, as that’s the smallest fee available for this event.

None of the price fields have ben set to required -

If a participant attempts to select ‘none’ for all of the options, they will be presented with the below message and will not be able to proceed -

Answer 2

Can you just put all the options into one field? Are you separating them into multiple fields purely for visual reasons? If so, then maybe you can use some custom css to do that, e.g. div.price-set-row.fieldname-row3 { margin-top: 1em; }

Answer 3

If you need something more custom, and you are not afraid to do a bit of code, you can always add a validation using hook_civicrm_validateForm (and optionally using javascript).

For hook_civicrm_validateForm, you need to create an extension with the function that looks like :

function myextension_civicrm_validateForm($formName, &$fields, &$files, &$form, &$errors) {

  if ($formName == 'CRM_Event_Form_Registration_Register') {

    $formId = $form->getVar('_id');
    // event id in this case
    if ($formId == 1) {

      // add whatever logic you want
      $price1 = CRM_Utils_Array::value('price_1', $fields);
      $price2 = CRM_Utils_Array::value('price_2', $fields);
      $price3 = CRM_Utils_Array::value('price_3', $fields);

      if (empty($price1) && empty($price2) && empty($price3)) {
        $errors["price_1"] = ts('You must choose one price item');
      }

    }

  }
}