field_validation.module in Field Validation 7.2

Add validation rules to field instance.

File

field_validation.module

<?php

/**
 * @file
 * Add validation rules to field instance.
 */

/**
 * Implements hook_field_attach_validate().
 */
function field_validation_field_attach_validate($entity_type, $entity, &$errors) {
  list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);

  // Using ctools to get validation rules of this bundle.
  ctools_include('export');
  $rules = ctools_export_load_object('field_validation_rule', 'conditions', array(
    'entity_type' => $entity_type,
    'bundle' => $bundle,
  ));
  if ($rules) {
    foreach ($rules as $rule) {

      // Disabled by Ctools.
      if (!empty($rule->disabled)) {
        continue;
      }
      ctools_include('plugins');
      $plugin = ctools_get_plugins('field_validation', 'validator', $rule->validator);
      $class = ctools_plugin_get_class($plugin, 'handler');
      if (empty($class)) {
        continue;
      }
      if (!is_subclass_of($rule->validator, 'field_validation_validator')) {
        drupal_set_message(t("Plugin '@validator' should extends 'field_validation_validator'.", array(
          '@validator' => $rule->validator,
        )));
        continue;
      }
      $field_name = $rule->field_name;
      $field = field_info_field($field_name);
      $instance = field_info_instance($entity_type, $field_name, $bundle);
      $languages = field_available_languages($entity_type, $field);
      foreach ($languages as $langcode) {
        $items = isset($entity->{$field_name}[$langcode]) ? $entity->{$field_name}[$langcode] : array();
        foreach ($items as $delta => $item) {
          $value = isset($item[$rule->col]) ? $item[$rule->col] : '';
          $validator = new $class($entity_type, $entity, $field, $instance, $langcode, $items, $delta, $item, $value, $rule, $errors);
          if ($validator
            ->bypass_validation()) {
            break;
          }
          if ($validator
            ->pass_condition() == FALSE) {
            break;
          }
          $break = $validator
            ->validate();
          if (!empty($break)) {
            break;
          }
        }
      }
    }
  }
}

/**
 * Implements hook_ctools_plugin_type().
 */
function field_validation_ctools_plugin_type() {
  return array(
    'validator' => array(
      'use hooks' => FALSE,
      'cache' => TRUE,
    ),
  );
}

/**
 * Implementation of hook_ctools_plugin_directory().
 */
function field_validation_ctools_plugin_directory($module, $plugin) {
  if ($module == 'field_validation' && $plugin == 'validator') {
    return 'plugins/' . $plugin;
  }
}

/**
 * Implementation of hook_ctools_plugin_api().
 *
 * Tell Ctools that we support the default_field_validation_rules API.
 */
function field_validation_ctools_plugin_api($owner, $api) {
  if ($owner == 'field_validation' && $api == 'default_field_validation_rules') {
    return array(
      'version' => 2,
    );
  }
}

Functions

Name	Description
field_validation_ctools_plugin_api	Implementation of hook_ctools_plugin_api().
field_validation_ctools_plugin_directory	Implementation of hook_ctools_plugin_directory().
field_validation_ctools_plugin_type	Implements hook_ctools_plugin_type().
field_validation_field_attach_validate	Implements hook_field_attach_validate().