Name Type Location Description
link_field_widget_form function core/modules/link/link.module Implements hook_field_widget_form().
field_behaviors_widget function core/modules/field/field.info.inc Determines the behavior of a widget with respect to an operation.
token_element_validate function core/includes/token.inc Validate a form element that should have tokens in it.
drupal_valid_http_host function core/includes/drupal.inc Validates that a hostname (for example $_SERVER['HTTP_HOST']) is safe.
file_field_widget_value function core/modules/file/file.field.inc Render API callback: Retrieves the value for the file_generic field element.
BlockHero::formValidate function core/modules/layout/includes/block.hero.inc Validates the form settings.
ConfigValidateException class core/includes/config.inc Exception thrown when a config object has a validation error before saving.
field_validate_instance function core/modules/field/field.crud.inc Validates a field instance.
LinkValidateTest::setUp function core/modules/link/tests/link.validate.test Sets up a Backdrop site for running functional and integration tests.
taxonomy_field_validate function core/modules/taxonomy/taxonomy.module Implements hook_field_validate().
element_validate_number function core/includes/drupal.inc This function has been removed with the inclusion of support for HTML5 number elements. See https://docs.backdropcms.org/node/43955
file_test_file_validate function core/modules/simpletest/tests/file_test.module Implements hook_file_validate().
UuidInterface::generate function core/includes/uuid.inc Generates a Universally Unique IDentifier (UUID).
theme_filter_guidelines function core/modules/filter/filter.theme.inc Returns HTML for guidelines for a text format.
text_field_widget_error function core/modules/field/modules/text/text.module Implements hook_field_widget_error().
drupal_render_cid_parts function core/includes/drupal.inc Returns cache ID parts for building a cache ID.
hook_field_widget_error function core/modules/field/field.api.php Flag a field-level validation error.
node_build_tempstore_id function core/modules/node/node.module Build tempstore ID.
date_field_widget_error function core/modules/date/date.module Implements hook_field_widget_error().
LAYOUT_STORAGE_OVERRIDE constant core/modules/layout/layout.module Layout constant for layouts that override module-defined presets.
ContactSitewideTestCase class core/modules/contact/tests/contact.test Tests the site-wide contact form.
file_type_form_validate function core/modules/file/file.admin.inc Form validation handler for file_file_type_form().
hook_form_FORM_ID_alter function core/modules/system/system.api.php Provide a form-specific alteration instead of the global hook_form_alter().
views_plugin_style_grid class core/modules/views/plugins/views_plugin_style_grid.inc Style plugin to render each item in a grid cell.
BlockText::formValidate function core/modules/layout/includes/block.text.inc Validates the form settings.
image_field_widget_info function core/modules/image/image.field.inc Implements hook_field_widget_info().
image_field_widget_form function core/modules/image/image.field.inc Implements hook_field_widget_form().
node_type_form_validate function core/modules/node/node.types.inc Form validation handler for node_type_form().
email_field_widget_info function core/modules/email/email.module Implements hook_field_widget_info().
email_field_widget_form function core/modules/email/email.module Implements hook_field_widget_form().
IMAGE_SVG_DEFAULT_WIDTH constant core/includes/image.inc Default width for SVG images.
menu_edit_item_validate function core/modules/menu/menu.admin.inc Validate form values for a menu link being added or edited.
FileFieldWidgetTestCase class core/modules/file/tests/file.test Tests file field widget.
form_test_validate_form function core/modules/simpletest/tests/form_test.module Form builder for testing backdrop_validate_form().
Query::uniqueIdentifier function core/includes/database/query.inc Returns a unique identifier for this object.
UuidUnitTestCase::$uuid property core/modules/system/tests/system.test The UUID object to be used for generating UUIDs.
UuidUnitTestCase::setUp function core/modules/system/tests/system.test Sets up unit test environment.
views_handler::validate function core/modules/views/includes/handlers.inc Validates the handler against the complete View.
views-view-grid.tpl.php file core/modules/views/templates/views-view-grid.tpl.php Default view template to display a rows in a grid.
link_field_widget_error function core/modules/link/link.module Implements hook_field_widget_error().
field_info_widget_types function core/modules/field/field.info.inc Returns information about field widgets from hook_field_widget_info().
NodeBlock::formValidate function core/modules/node/node.block.inc Validates the form settings.
FieldValidationException class core/modules/field/field.exceptions.inc Exception thrown by field_attach_validate() on field validation errors.
file_field_widget_submit function core/modules/file/file.field.inc Form submission handler for upload/remove button of file_field_widget_form().
number_field_widget_info function core/modules/field/modules/number/number.module Implements hook_field_widget_info().
batch_example_lowest_nid function modules/examples/batch_example/batch_example.module Utility function - simply queries and loads the lowest nid.
number_field_widget_form function core/modules/field/modules/number/number.module Implements hook_field_widget_form().
HTMLIdTestCase::$profile property core/modules/simpletest/tests/form.test The profile to install as a basis for testing.
user_uid_optional_to_arg function core/modules/user/user.module Returns $arg or the user ID of the current user if $arg is '%' or empty.
file_validate_extensions function core/includes/file.inc Checks that the filename ends with an allowed extension.

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