function date_views_filter_handler::extra_options_validate

Validate the options form.

Overrides date_views_filter_handler_simple::extra_options_validate

File

core/modules/date/views/date_views_filter_handler.inc, line 112

A flexible, configurable date filter. This filter combines multiple date filters into a single filter where all fields are controlled by the same date and can be combined with either AND or OR.

Class

date_views_filter_handler

@file A flexible, configurable date filter. This filter combines multiple date filters into a single filter where all fields are controlled by the same date and can be combined with either AND or OR.

Code

function extra_options_validate($form, &$form_state) {
  $check_fields = array_filter($form_state['values']['options']['date_fields']);
  if (empty($check_fields)) {
    form_error($form['date_fields'], t('You must select at least one date field for this filter.'));
  }
}