Name Type Location Description
hook_image_supported_extensions_alter function core/modules/image/image.api.php Modify the array of supported image extensions.
hook_form_system_theme_settings_alter function core/modules/system/theme.api.php Allow themes to alter the theme-specific settings form.
contact_form_user_admin_settings_alter function core/modules/contact/contact.module Implements hook_form_FORM_ID_alter().
NodeEntityFieldQueryAlter::$accessUser property core/modules/node/tests/node.test User with permission to view content.
DatabaseAlterTestCase::testSimpleAlter function core/modules/simpletest/tests/database_test.test Test that we can do basic alters.
views_plugin_pager::exposed_form_alter function core/modules/views/plugins/views_plugin_pager.inc
field_test_field_storage_details_alter function core/modules/field/tests/field_test/field_test.storage.inc Implements hook_field_storage_details_alter().
color_form_system_theme_settings_alter function core/modules/color/color.module Implements hook_form_FORM_ID_alter().
system_form_form_test_alter_form_alter function core/modules/simpletest/tests/form_test.module Implements hook_form_FORM_ID_alter() on behalf of system.module.
file_field_views_data_views_data_alter function core/modules/file/views/file.views.inc Implements hook_field_views_data_views_data_alter().
SystemInfoAlterTestCase::getSystemInfo function core/modules/system/tests/system.test Returns the info array as it is stored in {system}.
hook_language_fallback_candidates_alter function core/modules/system/language.api.php Perform alterations on the language fallback candidates.
translation_language_switch_links_alter function core/modules/translation/translation.module Implements hook_language_switch_links_alter().
form_test_form_user_register_form_alter function core/modules/simpletest/tests/form_test.module Implements hook_form_FORM_ID_alter() for the registration form.
image_field_views_data_views_data_alter function core/modules/image/views/image.views.inc Implements hook_field_views_data_views_data_alter().
entityreference_field_widget_info_alter function core/modules/entityreference/entityreference.module Implements hook_field_widget_info_alter().
BackdropWebTestCaseCache::alterToMyISAM function core/modules/simpletest/backdrop_web_test_case_cache.php Alter tables to MyISAM engine to speed up tests.
admin_bar_form_alter_flush_cache_submit function core/modules/admin_bar/admin_bar.module Form submission handler to flush Administration bar caches.
bartik_form_system_theme_settings_alter function core/modules/color/color.legacy.inc Alters the theme settings form for Bartik legacy colors.
hook_date_combo_validate_date_end_alter function core/modules/date/date.api.php Alter the local end date objects created by the date_combo validation.
NodeQueryAlter::testNodeQueryAlterWithUI function core/modules/node/tests/node.test Tests that node access permissions are followed.
node_form_system_themes_admin_form_alter function core/modules/node/node.module Implements hook_form_FORM_ID_alter().
NodeEntityFieldQueryAlter::$noAccessUser property core/modules/node/tests/node.test User without permission to view content.
hook_field_formatter_settings_form_alter function core/modules/field/field.api.php Alter the form elements for a formatter's settings.
list_form_field_ui_field_edit_form_alter function core/modules/field/modules/list/list.module Implements hook_form_FORM_ID_alter().
user_form_field_ui_field_edit_form_alter function core/modules/user/user.module Implements hook_form_FORM_ID_alter().
hook_field_widget_WIDGET_TYPE_form_alter function core/modules/field/field.api.php Alter widget forms for a specific widget provided by another module.
DatabaseAlterTestCase::testAlterWithJoin function core/modules/simpletest/tests/database_test.test Test that we can alter the joins on a query.
date_form_field_ui_field_edit_form_alter function core/modules/date/date.module Implements hook_form_FORM_ID_alter() for field_ui_field_edit_form().
field_test_field_widget_properties_alter function core/modules/field/tests/field_test/field_test.module Implements hook_field_widget_properties_alter().
path_form_taxonomy_form_vocabulary_alter function core/modules/path/path.module Implements hook_form_FORM_ID_alter() for taxonomy_form_vocabulary().
dblog_form_system_logging_settings_alter function core/modules/dblog/dblog.module Implements hook_form_FORM_ID_alter() for system_logging_settings().
syslog_form_system_logging_settings_alter function core/modules/syslog/syslog.module Implements hook_form_FORM_ID_alter().
image_module_test_image_effect_info_alter function core/modules/image/tests/image_module_test/image_module_test.module Implements hook_image_effect_info_alter().
minimal_form_install_configure_form_alter function core/profiles/minimal/minimal.profile Implements hook_form_FORM_ID_alter() for install_configure_form().
locale_form_language_admin_add_form_alter function core/modules/locale/locale.module Implements hook_form_FORM_ID_alter() for language_admin_add_form(().
form_test_form_form_test_alter_form_alter function core/modules/simpletest/tests/form_test.module Implements hook_form_FORM_ID_alter().
hook_date_combo_validate_date_start_alter function core/modules/date/date.api.php Alter the local start date objects created by the date_combo validation.
NodeQueryAlter::testNodeQueryAlterOverride function core/modules/node/tests/node.test Tests 'node_access' query alter override.
view_mode_test_entity_view_mode_info_alter function core/modules/field_ui/tests/view_mode_test/view_mode_test.module Implements hook_entity_view_mode_info_alter().
standard_form_install_configure_form_alter function core/profiles/standard/standard.profile Implements hook_form_FORM_ID_alter() for install_configure_form().
locale_form_language_admin_edit_form_alter function core/modules/locale/locale.module Implements hook_form_FORM_ID_alter() for language_admin_edit_form().
DatabaseAlterTestCase::testAlterExpression function core/modules/simpletest/tests/database_test.test Test that we can alter expressions in the query.
field_test_schema_alter_field_schema_alter function core/modules/field/tests/field_test_schema_alter/field_test_schema_alter.install Implements hook_field_schema_alter().
field_test_field_available_languages_alter function core/modules/field/tests/field_test/field_test.module Implements hook_field_available_languages_alter().
CommonJavaScriptTestCase::testLibraryAlter function core/modules/simpletest/tests/common.test Adds a JavaScript library to the page and alters it.
taxonomy_field_views_data_views_data_alter function core/modules/taxonomy/views/taxonomy.views.inc Implements hook_field_views_data_views_data_alter().
hook_date_field_widget_settings_form_alter function core/modules/date/date.api.php Alter a date field widget settings form.
hook_field_formatter_settings_summary_alter function core/modules/field/field.api.php Alter the short summary for the current formatter settings of an instance.
views_plugin_pager_full::exposed_form_alter function core/modules/views/plugins/views_plugin_pager_full.inc

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