Name Type Location Description
field_attach_validate function modules/field/field.attach.inc Perform field validation against the field data in an entity.
field_widget_instance function modules/field/field.form.inc Retrieves the instance definition array for a widget's helper callbacks.
AJAXElementValidation class modules/simpletest/tests/ajax.test Miscellaneous Ajax tests using ajax_test module.
form_options_validate function modules/field/modules/options/options.module Validate the "options" form element type.
HTMLIdTestCase::setUp function modules/simpletest/tests/form.test Sets up a Backdrop site for running functional and integration tests.
date_timezone_is_valid function includes/date.inc Determines if a timezone string is valid.
date_timezone_validate function modules/date/date.elements.inc Validation for timezone input.
drupal_valid_http_host function includes/drupal.inc Validates that a hostname (for example $_SERVER['HTTP_HOST']) is safe.
STREAM_WRAPPERS_HIDDEN constant includes/stream_wrappers.inc Stream wrapper type flag -- not visible in the UI or accessible via web, but readable and writable. E.g. the temporary directory for uploads.
backdrop_validate_form function includes/form.inc Validates user-submitted form data in the $form_state array.
OptionsWidgetsTestCase class modules/field/modules/options/tests/options.test
backdrop_valid_test_ua function includes/bootstrap.inc Returns the test prefix if this is an internal request from SimpleTest.
FormValidationTestCase class modules/simpletest/tests/form.test Test form validation handlers.
user_register_validate function modules/user/user.module Validation function for the user registration form.
backdrop_validate_utf8 function includes/bootstrap.inc Checks whether a string is valid UTF-8.
views_plugin::validate function modules/views/includes/plugin.inc Validate that the plugin is correct and can be saved.
user_uid_optional_load function modules/user/user.module Load either a specified or the current user account.
text_field_widget_form function modules/field/modules/text/text.module Implements hook_field_widget_form().
IMAGE_STORAGE_OVERRIDE constant modules/image/image.module Image style constant for user presets that override module-defined presets.
text_field_widget_info function modules/field/modules/text/text.module Implements hook_field_widget_info().
file_add_form_validate function modules/file/file.pages.inc Validation handler for file_add_form().
DateValidationTestCase class modules/date/tests/date_validation.test
link_field_widget_info function modules/link/link.module Implements hook_field_widget_info().
views_invalidate_cache function modules/views/views.module Invalidate the views cache, forcing a rebuild on the next grab of table data.
token_element_validate function includes/token.inc Validate a form element that should have tokens in it.
UserValidationTestCase class modules/user/tests/user.test
file_field_widget_info function modules/file/file.field.inc Implements hook_field_widget_info().
view::generate_item_id function modules/views/includes/view.inc Generates a unique ID for an item.
date_field_widget_form function modules/date/date.field.inc Implementation of hook_field_widget_form().
_form_options_validate function modules/field/modules/options/options.element.inc Logic function for form_options_validate(). Do not call directly.
VIEWS_STORAGE_OVERRIDE constant modules/views/views.module Views constant for views that override module-defined presets.
hook_redirect_validate function modules/redirect/redirect.api.php Perform redirect validation before a redirect is created or updated.
hook_field_widget_form function modules/field/field.api.php Return the form for a single field widget.
filter_parse_file_fids function modules/filter/filter.module Parse an HTML snippet for any data-file-id attributes.
hook_field_widget_info function modules/field/field.api.php Expose Field API widget types.
link_field_widget_form function modules/link/link.module Implements hook_field_widget_form().
field_default_validate function modules/field/field.default.inc Generic field validation handler.
file_validate_is_image function includes/file.inc Checks that the file is recognized by image_get_info() as an image.
field_behaviors_widget function modules/field/field.info.inc Determines the behavior of a widget with respect to an operation.
date_field_widget_info function modules/date/date.field.inc Implements hook_field_widget_info().
html_datetime_validate function includes/form.inc Validate a combined date and time array.
file_field_widget_form function modules/file/file.field.inc Implements hook_field_widget_form().
drupal_render_cid_parts function includes/drupal.inc Returns cache ID parts for building a cache ID.
email_field_widget_form function modules/email/email.module Implements hook_field_widget_form().
ConfigValidateException class includes/config.inc Exception thrown when a config object has a validation error before saving.
file_field_widget_value function modules/file/file.field.inc Render API callback: Retrieves the value for the file_generic field element.
UuidInterface::generate function includes/uuid.inc Generates a Universally Unique IDentifier (UUID).
link_field_widget_error function modules/link/link.module Implements hook_field_widget_error().
email_field_widget_info function modules/email/email.module Implements hook_field_widget_info().
Query::uniqueIdentifier function includes/database/query.inc Returns a unique identifier for this object.

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