'Form validation', 'page callback' => 'webform_validation_manage', 'page arguments' => array(1), 'access callback' => 'node_access', 'access arguments' => array('update', 1), 'file' => 'webform_validation.admin.inc', 'weight' => 3, 'type' => MENU_LOCAL_TASK, ); $items['node/%webform_menu/webform/validation/add/%'] = array( 'title' => 'Add validation', 'page callback' => 'drupal_get_form', 'page arguments' => array('webform_validation_manage_rule', 1, 'add', 5), 'access callback' => 'node_access', 'access arguments' => array('update', 1), 'file' => 'webform_validation.admin.inc', 'type' => MENU_CALLBACK, ); $items['node/%webform_menu/webform/validation/edit/%/%webform_validation_rule'] = array( 'title' => 'Edit rule', 'page callback' => 'drupal_get_form', 'page arguments' => array('webform_validation_manage_rule', 1, 'edit', 5, 6), 'access callback' => 'node_access', 'access arguments' => array('update', 1), 'file' => 'webform_validation.admin.inc', 'type' => MENU_CALLBACK, ); $items['node/%webform_menu/webform/validation/delete/%webform_validation_rule'] = array( 'title' => 'Delete rule', 'page callback' => 'drupal_get_form', 'page arguments' => array('webform_validation_delete_rule', 5), 'access callback' => 'node_access', 'access arguments' => array('update', 1), 'file' => 'webform_validation.admin.inc', 'type' => MENU_CALLBACK, ); return $items; } /** * Loads validation rule from menu parameter */ function webform_validation_rule_load($ruleid) { return webform_validation_get_rule($ruleid); } /** * Implements hook_theme(). */ function webform_validation_theme() { return array( 'webform_validation_manage_add_rule' => array( 'variables' => array( 'nid' => NULL, ), ), 'webform_validation_manage_overview' => array( 'variables' => array( 'rules' => NULL, 'node' => NULL, ), ), ); } /** * Implements hook_form_alter(). */ function webform_validation_form_alter(&$form, &$form_state, $form_id) { if (strpos($form_id, 'webform_client_form_') !== FALSE) { $form['#validate'][] = 'webform_validation_validate'; } } /** * Webform validation handler to validate against the given rules */ function webform_validation_validate($form, &$form_state) { $page_count = 1; $nid = $form_state['values']['details']['nid']; $node = node_load($nid); $values = isset($form_state['values']['submitted']) ? $form_state['values']['submitted'] : NULL; $flat_values = _webform_client_form_submit_flatten($node, $values); $rules = webform_validation_get_node_rules($nid); // Get number of pages for this webform if (isset($form_state['webform']['page_count'])) { $page_count = $form_state['webform']['page_count']; } else if (isset($form_state['storage']['page_count'])) { $page_count = $form_state['storage']['page_count']; } // Filter out rules that don't apply to this step in the multistep form if ($values && $page_count && $page_count > 1) { $current_page_components = webform_validation_get_field_keys($form_state['values']['submitted'], $node); if ($rules) { // filter out rules that don't belong in the current step foreach ($rules as $ruleid => $rule) { // get all the component formkeys for this specific validation rule $rule_formkeys = webform_validation_rule_get_formkeys($rule); $rule_applies_to_current_page = FALSE; if (!empty($rule_formkeys)) { foreach ($rule_formkeys as $formkey) { if (in_array($formkey, $current_page_components)) { // this rule applies to the current page, // because one of the rule components is on the page $rule_applies_to_current_page = TRUE; } } } if (!$rule_applies_to_current_page) { unset($rules[$ruleid]); } } } } if ($rules) { foreach ($rules as $rule) { // create a list of components that need validation against this rule (component id => user submitted value) $items = array(); foreach ($rule['components'] as $cid => $component) { if (isset($flat_values[$cid])) { $items[$cid] = $flat_values[$cid]; } } // prefix array keys to avoid reindexing by the module_invoke_all function call $items = webform_validation_prefix_keys($items); $component_definitions = webform_validation_prefix_keys($node->webform['components']); // have the submitted values validated $errors = module_invoke_all("webform_validation_validate", $rule['validator'], $items, $component_definitions, $rule); if ($errors) { $errors = webform_validation_unprefix_keys($errors); $components = webform_validation_unprefix_keys($component_definitions); foreach ($errors as $item_key => $error) { // build the proper form element error key, taking into account hierarchy $error_key = 'submitted][' . webform_validation_parent_tree($item_key, $components) . $components[$item_key]['form_key']; form_set_error($error_key, $error); } } } } } /** * Recursive helper function to get all field keys (including fields in fieldsets) */ function webform_validation_get_field_keys($submitted, $node) { static $fields = array(); foreach (element_children($submitted) as $child) { if (is_array($submitted[$child]) && element_children($submitted[$child])) { // only keep searching recursively if it's a fieldset $group_components = _webform_validation_get_group_types(); if (in_array(_webform_validation_get_component_type($node, $child), $group_components)) { webform_validation_get_field_keys($submitted[$child], $node); } else { $fields[$child] = $child; } } else { $fields[$child] = $child; } } return $fields; } /** * Recursively add the parents for the element, to be used as first argument to form_set_error */ function webform_validation_parent_tree($cid, $components) { $output = ''; if ($pid = $components[$cid]['pid']) { $output .= webform_validation_parent_tree($pid, $components); $output .= $components[$pid]['form_key'] . ']['; } return $output; } /** * Get an array of formkeys for all components that have been assigned to a rule */ function webform_validation_rule_get_formkeys($rule) { $formkeys = array(); if (isset($rule['components'])) { foreach ($rule['components'] as $cid => $component) { $formkeys[] = $component['form_key']; } } return $formkeys; } /** * Prefix numeric array keys to avoid them being reindexed by module_invoke_all */ function webform_validation_prefix_keys($arr) { $ret = array(); foreach ($arr as $k => $v) { $ret['item_' . $k] = $v; } return $ret; } /** * Undo prefixing numeric array keys to avoid them being reindexed by module_invoke_all */ function webform_validation_unprefix_keys($arr) { $ret = array(); foreach ($arr as $k => $v) { $new_key = str_replace('item_', '', $k); $ret[$new_key] = $v; } return $ret; } /** * Theme the 'add rule' list */ function theme_webform_validation_manage_add_rule($variables) { $nid = $variables['nid']; $output = ''; $validators = webform_validation_get_validators(); if ($validators) { $output = '