Name Type Location Description
locale_entity_info_alter function modules/locale/locale.module Implements hook_entity_info_alter().
hook_backdrop_goto_alter function modules/system/system.api.php Change the page the user is sent to by backdrop_goto().
hook_views_plugins_alter function modules/views/views.api.php Alter existing plugins data, defined by modules.
hook_field_display_alter function modules/field/field.api.php Alters the display settings of a field before it gets displayed.
contact_views_data_alter function modules/contact/views/contact.views.inc Implements hook_views_data_alter().
NodeQueryAlter::$profile property modules/node/tests/node.test The profile to install as a basis for testing.
color_url_outbound_alter function modules/color/color.module Implements hook_url_outbound_alter().
FormAlterTestCase::setUp function modules/simpletest/tests/form.test Sets up a Backdrop site for running functional and integration tests.
hook_menu_get_item_alter function modules/system/system.api.php Alter a menu router item right after it has been retrieved from the database or cache.
comment_views_data_alter function modules/comment/views/comment.views.inc Use views_data_alter to add items to the node table that are relevant to comments.
system_system_info_alter function modules/system/system.module Implements hook_system_info_alter().
ThemeUnitTest::testAlter function modules/simpletest/tests/theme.test Ensures theme hook_*_alter() implementations can run before anything is rendered.
menu_form_node_form_alter function modules/menu/menu.module Implements hook_form_BASE_FORM_ID_alter().
hook_theme_registry_alter function modules/system/system.api.php Alter the theme registry information returned from hook_theme().
hook_telemetry_data_alter function modules/telemetry/telemetry.api.php Alter the complete list of values collected by Telemetry before sending.
hook_telemetry_info_alter function modules/telemetry/telemetry.api.php Alter the list of data collected by Telemetry.
field_field_display_alter function modules/field/field.module Implements hook_field_display_alter().
taxonomy_test_query_alter function modules/simpletest/tests/taxonomy_test.module Implements hook_query_alter().
NodeEntityFieldQueryAlter class modules/node/tests/node.test Tests node_query_entity_field_access_alter().
path_form_node_form_alter function modules/path/path.module Implements hook_form_BASE_FORM_ID_alter() for node_form().
locale_library_info_alter function modules/locale/locale.module Implement hook_library_info_alter().
hook_field_language_alter function modules/field/field.api.php Perform alterations on field_language() values.
views_plugin_query::alter function modules/views/plugins/views_plugin_query.inc Let modules modify the query just prior to finalizing it.
locale_url_outbound_alter function modules/locale/locale.module Implements hook_url_outbound_alter().
taxonomy_views_data_alter function modules/taxonomy/views/taxonomy.views.inc Implements hook_views_data_alter().
database_test_query_alter function modules/simpletest/tests/database_test.module Implements hook_query_alter().
book_form_node_form_alter function modules/book/book.module Implements hook_form_BASE_FORM_ID_alter().
redirect_url_inbound_alter function modules/redirect/redirect.module Implements hook_url_inbound_alter().
EntityFieldQuery::$altered property modules/entity/entity.query.inc TRUE if the query has already been altered, FALSE if it hasn't.
hook_stream_wrappers_alter function modules/system/system.api.php Alters the list of PHP stream wrapper implementations.
hook_update_projects_alter function modules/update/update.api.php Alter the list of projects before fetching data and comparing versions.
file_stream_wrappers_alter function modules/file/file.module Implements hook_stream_wrappers_alter().
hook_views_ajax_data_alter function modules/views/views.api.php This hook allows to alter the commands which are used on a views ajax request.
hook_menu_breadcrumb_alter function modules/system/system.api.php Alter links in the active trail before it is rendered as the breadcrumb.
LocaleLibraryInfoAlterTest class modules/locale/tests/locale.test Tests localization of the JavaScript libraries.
hook_cron_queue_info_alter function modules/system/system.api.php Alter cron queue information before cron runs.
TaxonomyQueryAlterTestCase class modules/taxonomy/tests/taxonomy.test Tests that appropriate query tags are added.
SelectQuery::$alterMetaData property includes/database/select.inc A list of arbitrary metadata that may be attached to the query.
hook_user_format_name_alter function modules/user/user.api.php Alter the username that is displayed for a user.
bartik_backdrop_alter_alter function modules/simpletest/tests/common_test.module Implements hook_TYPE_alter() on behalf of Bartik theme.
user_menu_site_status_alter function modules/user/user.module Implements hook_menu_site_status_alter().
CommonBackdropAlterTestCase class modules/simpletest/tests/common.test Tests for URL generation functions.
menu_menu_local_tasks_alter function modules/menu/menu.module Implements hook_menu_local_tasks_alter().
hook_admin_bar_output_alter function modules/admin_bar/admin_bar.api.php Change the administration bar content before it is rendered.
hook_entity_view_mode_alter function modules/entity/entity.api.php Change the display mode of an entity that is being displayed.
hook_ckeditor_plugins_alter function modules/ckeditor/ckeditor.api.php Modify the list of available CKEditor plugins.
node_menu_local_tasks_alter function modules/node/node.module Implements hook_menu_local_tasks_alter().
date_field_views_data_alter function modules/date/date.module Implements hook_field_views_data_alter().
node_form_search_form_alter function modules/node/node.module Implements hook_form_FORM_ID_alter().
hook_menu_site_status_alter function modules/system/system.api.php Control site status before menu dispatching.

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