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1. drupal
   1. drupal7

Perform field validation against form-submitted field values.

There are two levels of validation for fields in forms: widget validation, and field validation.

• Widget validation steps are specific to a given widget's own form

structure and UI metaphors. They are executed through FAPI's #element_validate property during normal form validation.

• Field validation steps are common to a given field type, independently of

the specific widget being used in a given form. They are defined in the field type's implementation of hook_field_validate().

This function performs field validation in the context of a form submission. It converts field validation errors into form errors on the correct form elements. Fieldable object types should call this function during their own form validation function.

Übergabeparameter

$obj_type The type of $object; e.g. 'node' or 'user'.

$object The object being submitted. The 'bundle key', 'id key' and (if applicable) 'revision key' should be present. The actual field values will be read from $form_state['values'].

$form The form structure.

$form_state An associative array containing the current state of the form.

This function is an autoloader for _field_attach_form_validate() in modules/field/field.attach.inc.

Verwandte Themen

Field Attach API

Operate on Field API data attached to Drupal objects.

Code

modules/field/field.autoload.inc, line 141

<?php
function field_attach_form_validate($obj_type, &$object, $form, &$form_state) {
  require_once DRUPAL_ROOT . '/modules/field/field.attach.inc';
  return _field_attach_form_validate($obj_type, $object, $form, $form_state);
}
?>