Search for alter

Title	Object type	File name	Summary
FieldTestHooks::queryEfqTablePrefixingTestAlter	function	core/modules/field/tests/modules/field_test/src/Hook/FieldTestHooks.php	Implements hook_query_TAG_alter() for tag 'efq_table_prefixing_test'.
FieldThirdPartyTestHooks::fieldFormatterSettingsSummaryAlter	function	core/modules/field/tests/modules/field_third_party_test/src/Hook/FieldThirdPartyTestHooks.php	Implements hook_field_formatter_settings_summary_alter().
FieldThirdPartyTestHooks::fieldWidgetSettingsSummaryAlter	function	core/modules/field/tests/modules/field_third_party_test/src/Hook/FieldThirdPartyTestHooks.php	Implements hook_field_widget_settings_summary_alter().
FieldTypeCategoryManager::alterDefinitions	function	core/lib/Drupal/Core/Field/FieldTypeCategoryManager.php	Invokes the hook to alter the definitions if the alter hook is set.
FieldUiHooks::formAlter	function	core/modules/field_ui/src/Hook/FieldUiHooks.php	Implements hook_form_alter().
FieldUiHooks::formFieldUiFieldStorageAddFormAlter	function	core/modules/field_ui/src/Hook/FieldUiHooks.php	Implements hook_form_FORM_ID_alter() for 'field_ui_field_storage_add_form'.
FieldUiHooks::localTasksAlter	function	core/modules/field_ui/src/Hook/FieldUiHooks.php	Implements hook_local_tasks_alter().
FieldUiLocalTask::alterLocalTasks	function	core/modules/field_ui/src/Plugin/Derivative/FieldUiLocalTask.php	Alters the base_route definition for field_ui local tasks.
FieldUiTestDeprecatedHooks::formFieldStorageConfigEditFormAlter	function	core/modules/field_ui/tests/modules/field_ui_test_deprecated/src/Hook/FieldUiTestDeprecatedHooks.php	Implements hook_form_FORM_ID_alter() for field_storage_config_edit_form.
FieldUiTestHooks::formEntityViewDisplayEditFormAlter	function	core/modules/field_ui/tests/modules/field_ui_test/src/Hook/FieldUiTestHooks.php	Implements hook_form_FORM_BASE_ID_alter().
FieldWebTest::testAlterUrl	function	core/modules/views/tests/src/Functional/Handler/FieldWebTest.php	Tests rewriting the output to a link.
FileDeprecatedTestThemeHooks::fileMimetypeMappingAlter	function	core/modules/file/tests/file_deprecated_test/src/Hook/FileDeprecatedTestThemeHooks.php	Implements hook_file_mimetype_mapping_alter().
FileFormHooks::formSystemFileSystemSettingsAlter	function	core/modules/file/src/Hook/FileFormHooks.php	Implements hook_form_FORM_ID_alter().
FileHooks::fieldWidgetInfoAlter	function	core/modules/file/src/Hook/FileHooks.php	Implements hook_field_widget_info_alter().
FileServiceProvider::alter	function	core/modules/file/src/FileServiceProvider.php	Modifies existing service definitions.
FileTestHooks::entityTypeAlter	function	core/modules/file/tests/file_test/src/Hook/FileTestHooks.php	Implements hook_entity_type_alter().
FileTestHooks::fileUrlAlter	function	core/modules/file/tests/file_test/src/Hook/FileTestHooks.php	Implements hook_file_url_alter().
FileViewsHooks::fieldViewsDataViewsDataAlter	function	core/modules/file/src/Hook/FileViewsHooks.php	Implements hook_field_views_data_views_data_alter().
FilterHooks::filterSecureImageAlter	function	core/modules/filter/src/Hook/FilterHooks.php	Implements hook_filter_secure_image_alter().
FormOperations::formAlter	function	core/modules/workspaces/src/Hook/FormOperations.php	Implements hook_form_alter().
FormTestAlterForm	class	core/modules/system/tests/modules/form_test/src/Form/FormTestAlterForm.php	Form builder for testing hook_form_alter() and hook_form_FORM_ID_alter().
FormTestAlterForm.php	file	core/modules/system/tests/modules/form_test/src/Form/FormTestAlterForm.php
FormTestAlterForm::buildForm	function	core/modules/system/tests/modules/form_test/src/Form/FormTestAlterForm.php	Form constructor.
FormTestAlterForm::getFormId	function	core/modules/system/tests/modules/form_test/src/Form/FormTestAlterForm.php	Returns a unique string identifying the form.
FormTestAlterForm::submitForm	function	core/modules/system/tests/modules/form_test/src/Form/FormTestAlterForm.php	Form submission handler.
FormTestHooks::blockFormFormTestAlterFormAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_FORM_ID_alter().
FormTestHooks::formAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_alter().
FormTestHooks::formFormTestAlterFormAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_FORM_ID_alter().
FormTestHooks::formFormTestVerticalTabsAccessFormAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_FORM_ID_alter() for form_test_vertical_tabs_access_form().
FormTestHooks::formUserRegisterFormAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_FORM_ID_alter() for the registration form.
FormTestHooks::systemFormFormTestAlterFormAlter	function	core/modules/system/tests/modules/form_test/src/Hook/FormTestHooks.php	Implements hook_form_FORM_ID_alter().
FunctionalTestDebugHtmlOutputTest::getAlteredPhpunitXmlConfigurationFile	function	core/tests/Drupal/FunctionalTests/Test/FunctionalTestDebugHtmlOutputTest.php
GroupwiseMax::alterSubqueryCondition	function	core/modules/views/src/Plugin/views/relationship/GroupwiseMax.php	Recursive helper to add a namespace to conditions.
HelpHooks::blockViewHelpBlockAlter	function	core/modules/help/src/Hook/HelpHooks.php	Implements hook_block_view_BASE_BLOCK_ID_alter().
HelpTopicsTestHooks::helpTopicsInfoAlter	function	core/modules/help/tests/modules/help_topics_test/src/Hook/HelpTopicsTestHooks.php	Implements hook_help_topics_info_alter().
HistoryHooks::nodeViewAlter	function	core/modules/history/src/Hook/HistoryHooks.php	Implements hook_ENTITY_TYPE_view_alter() for node entities.
HistoryViewsHooks::viewsDataAlter	function	core/modules/history/src/Hook/HistoryViewsHooks.php	Implements hook_views_data_alter().
HookAlterOrderTest	class	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Tests Hook Alter Order.
HookAlterOrderTest.php	file	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php
HookAlterOrderTest::$modules	property	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Modules to install.
HookAlterOrderTest::alter	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Invokes ModuleHandler->alter() and returns the altered array.
HookAlterOrderTest::assertAlterCallOrder	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Asserts the call order from an alter call.
HookAlterOrderTest::testAlterOrder	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Test ordering alter calls.
HookAlterOrderTest::testProceduralModuleImplementsAlterOrder	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Tests procedural implementations of module implements alter ordering.
HookAlterOrderTest::testReorderAlterMissingTarget	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Tests #[ReorderHook] attributes with missing target.
HookAlterOrderTest::testReorderCrossHookAlter	function	core/tests/Drupal/KernelTests/Core/Hook/HookAlterOrderTest.php	Tests #[ReorderHook] targeting other hooks.
HookCollectorPass::$moduleImplementsAlters	property	core/lib/Drupal/Core/Hook/HookCollectorPass.php	A list of functions implementing hook_module_implements_alter().
HookCollectorPassTest::testLegacyModuleImplementsAlter	function	core/tests/Drupal/KernelTests/Core/Hook/HookCollectorPassTest.php	Test LegacyModuleImplementsAlter.
hook_ajax_render_alter	function	core/lib/Drupal/Core/Form/form.api.php	Alter the Ajax command data that is sent to the client.
hook_archiver_info_alter	function	core/lib/Drupal/Core/File/file.api.php	Alter archiver information declared by other modules.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.