function ds_build_mode_form_validate in Display Suite 6

Same name and namespace in other branches

1. 6.3 includes/ds.buildmodes.inc \ds_build_mode_form_validate()
2. 6.2 includes/ds.buildmodes.inc \ds_build_mode_form_validate()

Validate new custom build mode submission.

File

includes/ds.buildmodes.inc, line 123

Manage build modes.

Code

function ds_build_mode_form_validate($form, &$form_state) {
  if ($form['#form_type'] == 'insert') {
    $existing = array_keys(ds_get_build_modes($form['#module']));
    if (in_array($form_state['values']['key'], $existing)) {
      form_set_error('key', t('This build mode already exists.'));
    }
    if (!preg_match('!^[a-z_0-9]+$!', $form_state['values']['key'])) {
      form_set_error('key', t('The machine-readable name must contain only lowercase letters, numbers and underscores.'));
    }
  }
}