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1. drupal
   1. drupal6
   2. drupal7

Process filter delete form submission.

Code

modules/filter/filter.admin.inc, line 267

<?php
function filter_admin_delete_submit($form, &$form_state) {
  db_query("DELETE FROM {filter_formats} WHERE format = %d", $form_state['values']['format']);
  db_query("DELETE FROM {filters} WHERE format = %d", $form_state['values']['format']);

  $default = variable_get('filter_default_format', 1);
  // Replace existing instances of the deleted format with the default format.
  db_query("UPDATE {node_revisions} SET format = %d WHERE format = %d", $default, $form_state['values']['format']);
  db_query("UPDATE {comments} SET format = %d WHERE format = %d", $default, $form_state['values']['format']);
  db_query("UPDATE {boxes} SET format = %d WHERE format = %d", $default, $form_state['values']['format']);

  cache_clear_all($form_state['values']['format'] . ':', 'cache_filter', TRUE);
  drupal_set_message(t('Deleted input format %format.', array('%format' => $form_state['values']['name'])));

  $form_state['redirect'] = 'admin/settings/filters';
  return;
}
?>