Name Type Location Description
menu_block_view_alter function modules/menu/menu.module Implements hook_block_view_alter().
hook_simpletest_alter function modules/simpletest/simpletest.api.php Alter the list of tests.
date_views_data_alter function modules/date/views/date.views.inc Implements hook_views_data_alter().
NodeQueryAlter::setUp function modules/node/tests/node.test Sets up a Backdrop site for running functional and integration tests.
hook_path_alias_alter function modules/path/path.api.php Alter generated aliases before saving.
hook_block_info_alter function modules/layout/layout.api.php Modify block definitions after loading form code.
url_alter_test.module file modules/simpletest/tests/url_alter_test.module Module to help test hook_url_inbound_alter() and hook_url_outbound_alter().
DatabaseAlterTestCase class modules/simpletest/tests/database_test.test Select alter tests.
hook_views_data_alter function modules/views/views.api.php Alter table structure.
hook_token_info_alter function modules/system/system.api.php Alter the metadata about available placeholder tokens and token types.
field_views_data_alter function modules/field/views/field.views.inc Implements hook_views_data_alter().
hook_url_inbound_alter function modules/system/system.api.php Alters inbound URL requests.
hook_filter_info_alter function modules/filter/filter.api.php Perform alterations on filter definitions.
hook_editor_info_alter function modules/filter/filter.api.php Perform alterations on editor definitions.
image_token_info_alter function modules/image/image.tokens.inc Implements hook_token_info_alter().
hook_entity_view_alter function modules/entity/entity.api.php Alter the results of ENTITY_view().
hook_ajax_render_alter function modules/system/system.api.php Alter the commands that are sent to the user through the Ajax framework.
hook_node_grants_alter function modules/node/node.api.php Alter user access rules when trying to view, edit or delete a node.
hook_admin_paths_alter function modules/system/system.api.php Redefine administrative paths defined by other modules.
hook_system_info_alter function modules/system/system.api.php Alter the information parsed from module and theme .info files
hook_action_info_alter function modules/system/system.api.php Alters the actions declared by another module.
hook_entity_info_alter function modules/entity/entity.api.php Alter the entity info.
hook_views_query_alter function modules/views/views.api.php Alter the query before executing the query.
UrlAlterFunctionalTest class modules/simpletest/tests/path.test Tests hook_url_alter functions.
book_entity_info_alter function modules/book/book.module Implements hook_entity_info_alter().
field_token_info_alter function modules/field/field.tokens.inc Implements hook_token_info_alter().
field_system_info_alter function modules/field/field.module Implements hook_system_info_alter().
hook_image_styles_alter function modules/image/image.api.php Modify any image styles provided by other modules or the user.
hook_url_outbound_alter function modules/system/system.api.php Alters outbound URLs.
hook_comment_view_alter function modules/comment/comment.api.php Alter the results of comment_view().
hook_entity_query_alter function modules/entity/entity.api.php Alter or execute an EntityFieldQuery.
QueryAlterableInterface interface includes/database/query.inc Interface for a query that can be manipulated via an alter hook.
hook_element_info_alter function modules/system/system.api.php Alter the element type information returned from modules.
hook_path_pattern_alter function modules/path/path.api.php Alter the pattern to be used before an alias is generated.
locale_views_data_alter function modules/locale/views/locale.views.inc Implements hook_views_data_alter().
SystemInfoAlterTestCase class modules/system/tests/system.test Tests the effectiveness of hook_system_info_alter().
hook_updater_info_alter function modules/system/system.api.php Alter the Updater information array.
views_query_views_alter function modules/views/views.module Implements hook_query_TAG_alter().
SelectQuery::$alterTags property includes/database/select.inc A list of tags by which this query may be altered.
entity_token_info_alter function modules/entity/entity.tokens.inc Implements hook_token_info_alter().
hook_ckeditor_css_alter function modules/ckeditor/ckeditor.api.php Modify the list of CSS files that will be added to a CKEditor instance.
hook_library_info_alter function modules/system/system.api.php Alters the JavaScript/CSS library registry.
hook_form_FORM_ID_alter function modules/system/system.api.php Provide a form-specific alteration instead of the global hook_form_alter().
hook_install_tasks_alter function modules/system/system.api.php Alter the full list of installation tasks.
FormAlterTestCase::setUp function modules/simpletest/tests/form.test Sets up a Backdrop site for running functional and integration tests.
hook_update_status_alter function modules/update/update.api.php Alter the information about available updates for projects.
hook_field_display_alter function modules/field/field.api.php Alters the display settings of a field before it gets displayed.
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.
hook_autoload_info_alter function modules/system/system.api.php Perform alterations to the list of classes included in the registry.
hook_archiver_info_alter function modules/system/system.api.php Alter archiver information declared by other modules.

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