'submit', '#value' => t('Save configuration'));
if ($automatic_defaults) {
$form = _system_settings_form_automatic_defaults($form);
}
if (!empty($_POST) && form_get_errors()) {
drupal_set_message(t('The settings have not been saved because of the errors.'), 'error');
}
// Adding our custom submission handler.
$form['#submit'][] = 'superfish_admin_settings_submit';
$form['#submit'][] = 'system_settings_form_submit';
// By default, render the form using theme_system_settings_form().
if (!isset($form['#theme'])) {
$form['#theme'] = 'system_settings_form';
}
return $form;
}
/**
* Module settings form.
*/
function superfish_admin_settings() {
$form['superfish_number'] = array(
'#type' => 'select',
'#title' => t('Number of blocks'),
'#multiple' => FALSE,
'#options' => drupal_map_assoc(range(1, 50)),
'#description' => t('The number of Superfish menu blocks.') . ' (' . t('Default') . ': 4' . ')' . '
' . t('Please note decreasing this number leads to permanent deletion of blocks.'),
'#default_value' => variable_get('superfish_number', 4),
);
$form['superfish_slp'] = array(
'#type' => 'textarea',
'#title' => t('Path to Superfish library'),
'#description' => t('Edit only if you are sure of what you are doing.'),
'#default_value' => variable_get('superfish_slp', superfish_library_path()),
'#rows' => 7,
);
return superfish_system_settings_form($form, FALSE);
}
/**
* Implements hook_validate().
*/
function superfish_admin_settings_validate($form, &$form_state) {
$error = array();
// Removing blank lines and white spaces.
$sf_library = preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", trim($form_state['values']['superfish_slp']));
if (empty($sf_library)) {
form_set_error('superfish_slp', t('Path to Superfish library field cannot be empty. Please try the below list:') . '
' . superfish_library_path() . '
');
}
else {
// Trimming blank lines and such.
$sf_library = explode("\n", $sf_library);
// Crystal clear.
foreach ($sf_library as $s) {
if (!file_exists($s)) {
$error[] = $s;
}
}
if (!empty($error)) {
$error_message = '';
if (count($error) > 1) {
foreach ($error as $e) {
$error_message .= '' . check_plain($e) . '';
}
$error_message = t('Files not found') . ': ';
}
else {
$error_message = t('File not found') . ': ' . check_plain($error[0]);
}
form_set_error('superfish_slp', $error_message);
}
}
}
/**
* Custom submission handler for the settings form.
*/
function superfish_admin_settings_submit($form, &$form_state) {
$values = &$form_state['values'];
$before = variable_get('superfish_number', 4);
$after = $values['superfish_number'];
// If the number of blocks has been decreased.
if ($before > $after) {
// How many blocks should be removed?
$reduce = $before - $after;
// Remove each block with all its variables.
$delta = $after;
for ($i = 0; $i < $reduce; $i++) {
$delta++;
db_delete('variable')->condition('name', 'superfish_%%_' . $delta, 'LIKE')->execute();
db_delete('block')->condition('module', 'superfish')->condition('delta', $delta)->execute();
db_delete('block_role')->condition('module', 'superfish')->condition('delta', $delta)->execute();
}
drupal_set_message(t('Successfully removed @number Superfish block(s).', array('@number' => $reduce)));
}
}