block_form_system_performance_settings_alter

Implements hook_form_FORM_ID_alter().

File

modules/block/block.module, line 1015

Controls the visual building blocks a page is constructed with.

Code

function block_form_system_performance_settings_alter(&$form, &$form_state) {
  $disabled = count(module_implements('node_grants'));
  $form['caching']['block_cache'] = array(
    '#type' => 'checkbox', 
    '#title' => t('Cache blocks'), 
    '#default_value' => variable_get('block_cache', FALSE), 
    '#disabled' => $disabled, 
    '#description' => $disabled ? t('Block caching is inactive because you have enabled modules defining content access restrictions.') : NULL, 
    '#weight' => -1,
  );
}