Same name and namespace in other branches
- 4.6.x includes/module.inc \hooks
- 4.7.x includes/module.inc \hooks
- 5.x includes/module.inc \hooks
- 6.x includes/module.inc \hooks
- 7.x includes/module.inc \hooks
- 8.9.x core/core.api.php \hooks
- 9 core/core.api.php \hooks
Define functions that alter the behavior of Drupal core.
One way for modules to alter the core behavior of Drupal (or another module) is to use hooks. Hooks are specially-named functions that a module defines (this is known as "implementing the hook"), which are discovered and called at specific times to alter or add to the base behavior or data (this is known as "invoking the hook"). Each hook has a name (example: hook_batch_alter()), a defined set of parameters, and a defined return value. Your modules can implement hooks that are defined by Drupal core or other modules that they interact with. Your modules can also define their own hooks, in order to let other modules interact with them.
To implement a hook:
- Locate the documentation for the hook. Hooks are documented in *.api.php files, by defining functions whose name starts with "hook_" (these files and their functions are never loaded by Drupal -- they exist solely for documentation). The function should have a documentation header, as well as a sample function body. For example, in the core file form.api.php, you can find hooks such as hook_batch_alter(). Also, if you are viewing this documentation on an API reference site, the Core hooks will be listed in this topic.
- Copy the function to your module's .module file.
- Change the name of the function, substituting your module's short name (name of the module's directory, and .info.yml file without the extension) for the "hook" part of the sample function name. For instance, to implement hook_batch_alter(), you would rename it to my_module_batch_alter().
- Edit the documentation for the function (normally, your implementation should just have one line saying "Implements hook_batch_alter().").
- Edit the body of the function, substituting in what you need your module to do.
To define a hook:
- Choose a unique name for your hook. It should start with "hook_", followed by your module's short name.
- Provide documentation in a *.api.php file in your module's main directory. See the "implementing" section above for details of what this should contain (parameters, return value, and sample function body).
- Invoke the hook in your module's code.
To invoke a hook, use methods on \Drupal\Core\Extension\ModuleHandlerInterface such as alter(), invoke(), and invokeAll(). You can obtain a module handler by calling \Drupal::moduleHandler(), or getting the 'module_handler' service on an injected container.
See also
\Drupal\Core\Extension\ModuleHandlerInterface
File
- core/
core.api.php, line 1593 - Documentation landing page and topics, plus core library hooks.
Functions
Name | Location | Description |
---|---|---|
hook_views_ui_display_top_links_alter |
core/ |
Alter the links displayed at the top of the view edit form. |
hook_views_ui_display_top_alter |
core/ |
Alter the top of the display for the Views UI. |
hook_views_ui_display_tab_alter |
core/ |
Alter the renderable array representing the edit page for one display. |
hook_views_query_substitutions |
core/ |
Replace special strings in the query before it is executed. |
hook_views_query_alter |
core/ |
Alter the query before it is executed. |
hook_views_pre_view |
core/ |
Alter a view at the very beginning of Views processing. |
hook_views_pre_render |
core/ |
Act on the view immediately before rendering it. |
hook_views_pre_execute |
core/ |
Act on the view after the query is built and just before it is executed. |
hook_views_pre_build |
core/ |
Act on the view before the query is built, but after displays are attached. |
hook_views_preview_info_alter |
core/ |
Alter the view preview information. |
hook_views_post_render |
core/ |
Post-process any render data. |
hook_views_post_execute |
core/ |
Act on the view immediately after the query has been executed. |
hook_views_post_build |
core/ |
Act on the view immediately after the query is built. |
hook_views_plugins_wizard_alter |
core/ |
Modify the list of available views wizard plugins. |
hook_views_plugins_style_alter |
core/ |
Modify the list of available views style plugins. |
hook_views_plugins_sort_alter |
core/ |
Modify the list of available views sort handler plugins. |
hook_views_plugins_row_alter |
core/ |
Modify the list of available views row plugins. |
hook_views_plugins_relationship_alter |
core/ |
Modify the list of available views relationship handler plugins. |
hook_views_plugins_query_alter |
core/ |
Modify the list of available views query plugins. |
hook_views_plugins_pager_alter |
core/ |
Modify the list of available views pager plugins. |
hook_views_plugins_join_alter |
core/ |
Modify the list of available views join plugins. |
hook_views_plugins_filter_alter |
core/ |
Modify the list of available views filter handler plugins. |
hook_views_plugins_field_alter |
core/ |
Modify the list of available views field handler plugins. |
hook_views_plugins_exposed_form_alter |
core/ |
Modify the list of available views exposed form plugins. |
hook_views_plugins_display_extenders_alter |
core/ |
Modify the list of available views display extender plugins. |
hook_views_plugins_display_alter |
core/ |
Modify the list of available views display plugins. |
hook_views_plugins_cache_alter |
core/ |
Modify the list of available views cache plugins. |
hook_views_plugins_argument_validator_alter |
core/ |
Modify the list of available views argument validation plugins. |
hook_views_plugins_argument_default_alter |
core/ |
Modify the list of available views default argument plugins. |
hook_views_plugins_argument_alter |
core/ |
Modify the list of available views argument handler plugins. |
hook_views_plugins_area_alter |
core/ |
Modify the list of available views area handler plugins. |
hook_views_plugins_access_alter |
core/ |
Modify the list of available views access plugins. |
hook_views_invalidate_cache |
core/ |
Allow modules to respond to the invalidation of the Views cache. |
hook_views_form_substitutions |
core/ |
Replace special strings when processing a view with form elements. |
hook_views_data_alter |
core/ |
Alter the table and field information from hook_views_data(). |
hook_views_data |
core/ |
Describe data tables and fields (or the equivalent) to Views. |
hook_views_analyze |
core/ |
Analyze a view to provide warnings about its configuration. |
hook_verify_update_archive |
core/ |
Verify an archive after it has been downloaded and extracted. |
hook_validation_constraint_alter |
core/ |
Alter validation constraint plugin definitions. |
hook_user_logout |
core/ |
The user just logged out. |
hook_user_login |
core/ |
The user just logged in. |
hook_user_format_name_alter |
core/ |
Alter the username that is displayed for a user. |
hook_user_cancel_methods_alter |
core/ |
Modify account cancellation methods. |
hook_user_cancel |
core/ |
Act on user account cancellations. |
hook_update_status_alter |
core/ |
Alter the information about available updates for projects. |
hook_update_projects_alter |
core/ |
Alter the list of projects before fetching data and comparing versions. |
hook_update_N |
core/ |
Perform a single update between minor versions. |
hook_update_last_removed |
core/ |
Return a number which is no longer available as hook_update_N(). |
hook_update_dependencies |
core/ |
Return an array of information about module update dependencies. |
hook_updater_info_alter |
core/ |
Alter the Updater information array. |
hook_updater_info |
core/ |
Provide information on Updaters (classes that can update Drupal). |
hook_uninstall |
core/ |
Remove any information that the module sets. |
hook_transliteration_overrides_alter |
core/ |
Provide language-specific overrides for transliteration. |
hook_tour_tips_info_alter |
core/ |
Allow modules to alter tip plugin definitions. |
hook_tour_tips_alter |
core/ |
Allow modules to alter tour items before render. |
hook_toolbar_alter |
core/ |
Alter the toolbar menu after hook_toolbar() is invoked. |
hook_toolbar |
core/ |
Add items to the toolbar menu. |
hook_token_info_alter |
core/ |
Alter the metadata about available placeholder tokens and token types. |
hook_token_info |
core/ |
Provide information about available placeholder tokens and token types. |
hook_tokens_alter |
core/ |
Alter replacement values for placeholder tokens. |
hook_tokens |
core/ |
Provide replacement values for placeholder tokens. |
hook_theme_suggestions_HOOK_alter |
core/ |
Alters named suggestions for a specific theme hook. |
hook_theme_suggestions_HOOK |
core/ |
Provides alternate named suggestions for a specific theme hook. |
hook_theme_suggestions_alter |
core/ |
Alters named suggestions for all theme hooks. |
hook_theme_registry_alter |
core/ |
Alter the theme registry information returned from hook_theme(). |
hook_themes_uninstalled |
core/ |
Respond to themes being uninstalled. |
hook_themes_installed |
core/ |
Respond to themes being installed. |
hook_theme |
core/ |
Register a module or theme's theme implementations. |
hook_template_preprocess_default_variables_alter |
core/ |
Alter the default, hook-independent variables for all templates. |
hook_system_themes_page_alter |
core/ |
Alters theme operation links. |
hook_system_info_alter |
core/ |
Alter the information parsed from module and theme .info.yml files. |
hook_system_breadcrumb_alter |
core/ |
Perform alterations to the breadcrumb built by the BreadcrumbManager. |
hook_shortcut_default_set |
core/ |
Return the name of a default shortcut set for the provided user account. |
hook_search_preprocess |
core/ |
Preprocess text for search. |
hook_search_plugin_alter |
core/ |
Alter search plugin definitions. |
hook_schema |
core/ |
Define the current version of the database schema. |
hook_rest_resource_alter |
core/ |
Alter the resource plugin definitions. |
hook_requirements_alter |
core/ |
Alters requirements data. |
hook_requirements |
core/ |
Check installation requirements and do status reporting. |
hook_render_template |
core/ |
Render a template using the theme engine. |
hook_removed_post_updates |
core/ |
Return an array of removed hook_post_update_NAME() function names. |
hook_rebuild |
core/ |
Rebuild data based upon refreshed caches. |
hook_ranking |
core/ |
Provide additional methods of scoring for core search results for nodes. |
hook_queue_info_alter |
core/ |
Alter cron queue information before cron runs. |
hook_query_TAG_alter |
core/ |
Perform alterations to a structured query for a given tag. |
hook_query_alter |
core/ |
Perform alterations to a structured query. |
hook_preprocess_HOOK |
core/ |
Preprocess theme variables for a specific theme hook. |
hook_preprocess |
core/ |
Preprocess theme variables for templates. |
hook_post_update_NAME |
core/ |
Executes an update which is intended to update data, like entities. |
hook_plugin_filter_TYPE__CONSUMER_alter |
core/ |
Alter the filtering of plugin definitions for a specific type and consumer. |
hook_plugin_filter_TYPE_alter |
core/ |
Alter the filtering of plugin definitions for a specific plugin type. |
hook_page_top |
core/ |
Add a renderable array to the top of the page. |
hook_page_bottom |
core/ |
Add a renderable array to the bottom of the page. |
hook_page_attachments_alter |
core/ |
Alter attachments (typically assets) to a page before it is rendered. |
hook_page_attachments |
core/ |
Add attachments (typically assets) to a page before it is rendered. |
hook_options_list_alter |
core/ |
Alters the list of options to be displayed for a field. |
hook_oembed_resource_url_alter |
core/ |
Alters an oEmbed resource URL before it is fetched. |
hook_node_update_index |
core/ |
Act on a node being indexed for searching. |
hook_node_search_result |
core/ |
Act on a node being displayed as a search result. |
hook_node_links_alter |
core/ |
Alter the links of a node. |
hook_node_grants_alter |
core/ |
Alter user access rules when trying to view, edit or delete a node. |
hook_node_grants |
core/ |
Inform the node access system what permissions the user has. |
hook_node_access_records_alter |
core/ |
Alter permissions for a node before it is written to the database. |
hook_node_access_records |
core/ |
Set permissions for a node to be written to the database. |
hook_module_preuninstall |
core/ |
Perform necessary actions before a module is uninstalled. |
hook_module_preinstall |
core/ |
Perform necessary actions before a module is installed. |
hook_module_implements_alter |
core/ |
Alter the registry of modules implementing a hook. |
hook_modules_uninstalled |
core/ |
Perform necessary actions after modules are uninstalled. |
hook_modules_installed |
core/ |
Perform necessary actions after modules are installed. |
hook_migration_plugins_alter |
core/ |
Allows altering the list of discovered migration plugins. |
hook_migrate_prepare_row |
core/ |
Allows adding data to a row before processing it. |
hook_migrate_MIGRATION_ID_prepare_row |
core/ |
Allows adding data to a row for a migration with the specified ID. |
hook_menu_local_tasks_alter |
core/ |
Alter local tasks displayed on the page before they are rendered. |
hook_menu_local_actions_alter |
core/ |
Alter local actions plugins. |
hook_menu_links_discovered_alter |
core/ |
Alters all the menu links discovered by the menu link plugin manager. |
hook_media_source_info_alter |
core/ |
Alters the information provided in \Drupal\media\Annotation\MediaSource. |
hook_mail_backend_info_alter |
core/ |
Alter the list of mail backend plugin definitions. |
hook_mail_alter |
core/ |
Alter an email message created with MailManagerInterface->mail(). |
hook_mail |
core/ |
Prepares a message based on parameters. |
hook_local_tasks_alter |
core/ |
Alter local tasks plugins. |
hook_locale_translation_projects_alter |
core/ |
Alter the list of projects to be updated by locale's interface translation. |
hook_link_alter |
core/ |
Alter the parameters for links. |
hook_library_info_build |
core/ |
Add dynamic library definitions. |
hook_library_info_alter |
core/ |
Alter libraries provided by an extension. |
hook_layout_alter |
core/ |
Allow modules to alter layout plugin definitions. |
hook_language_types_info_alter |
core/ |
Perform alterations on language types. |
hook_language_types_info |
core/ |
Define language types. |
hook_language_switch_links_alter |
core/ |
Perform alterations on language switcher links. |
hook_language_negotiation_info_alter |
core/ |
Perform alterations on language negotiation methods. |
hook_language_fallback_candidates_OPERATION_alter |
core/ |
Allow modules to alter the fallback candidates for specific operations. |
hook_language_fallback_candidates_alter |
core/ |
Allow modules to alter the language fallback candidates. |
hook_js_settings_build |
core/ |
Modify the JavaScript settings (drupalSettings). |
hook_js_settings_alter |
core/ |
Perform necessary alterations to the JavaScript settings (drupalSettings). |
hook_js_alter |
core/ |
Alters JavaScript before it is presented on the page. |
hook_jsonapi_ENTITY_TYPE_filter_access |
core/ |
Controls access to filtering by entity data via JSON:API. |
hook_jsonapi_entity_filter_access |
core/ |
Controls access when filtering by entity data via JSON:API. |
hook_jsonapi_entity_field_filter_access |
core/ |
Restricts filtering access to the given field. |
hook_install_tasks_alter |
core/ |
Alter the full list of installation tasks. |
hook_install_tasks |
core/ |
Return an array of tasks to be performed by an installation profile. |
hook_install |
core/ |
Perform setup tasks when the module is installed. |
hook_image_style_flush |
core/ |
Respond to image style flushing. |
hook_image_effect_info_alter |
core/ |
Alter the information provided in \Drupal\image\Annotation\ImageEffect. |
hook_hook_info |
core/ |
Defines one or more hooks that are exposed by a module. |
hook_help_topics_info_alter |
core/ |
Perform alterations on help topic definitions. |
hook_help_section_info_alter |
core/ |
Perform alterations on help page section plugin definitions. |
hook_help |
core/ |
Provide online user help. |
hook_form_system_theme_settings_alter |
core/ |
Allow themes to alter the theme-specific settings form. |
hook_form_FORM_ID_alter |
core/ |
Provide a form-specific alteration instead of the global hook_form_alter(). |
hook_form_BASE_FORM_ID_alter |
core/ |
Provide a form-specific alteration for shared ('base') forms. |
hook_form_alter |
core/ |
Perform alterations before a form is rendered. |
hook_filter_secure_image_alter |
core/ |
Alters images with an invalid source. |
hook_filter_info_alter |
core/ |
Perform alterations on filter definitions. |
hook_filter_format_disable |
core/ |
Perform actions when a text format has been disabled. |
hook_file_validate Deprecated |
core/ |
Check that files meet a given criteria. |
hook_file_url_alter |
core/ |
Alter the URL to a file. |
hook_file_move |
core/ |
Respond to a file that has been moved. |
hook_file_mimetype_mapping_alter |
core/ |
Alter MIME type mappings used to determine MIME type from a file extension. |
hook_file_download |
core/ |
Control access to private file downloads and specify HTTP headers. |
hook_file_copy |
core/ |
Respond to a file that has been copied. |
hook_filetransfer_info_alter |
core/ |
Alter the FileTransfer class registry. |
hook_filetransfer_info |
core/ |
Register information about FileTransfer classes provided by a module. |
hook_field_widget_single_element_WIDGET_TYPE_form_alter |
core/ |
Alter widget forms for a specific widget provided by another module. |
hook_field_widget_single_element_form_alter |
core/ |
Alter forms for field widgets provided by other modules. |
hook_field_widget_info_alter |
core/ |
Perform alterations on Field API widget types. |
hook_field_widget_complete_WIDGET_TYPE_form_alter |
core/ |
Alter the complete form for a specific widget provided by other modules. |
hook_field_widget_complete_form_alter |
core/ |
Alter the complete form for field widgets provided by other modules. |
hook_field_views_data_views_data_alter |
core/ |
Alter the Views data on a per field basis. |
hook_field_views_data_alter |
core/ |
Alter the Views data for a single Field API field. |
hook_field_views_data |
core/ |
Override the default Views data for a Field API field. |
hook_field_ui_preconfigured_options_alter |
core/ |
Perform alterations on preconfigured field options. |
hook_field_type_category_info_alter |
core/ |
Allows modules to alter the field type category information. |
hook_field_storage_config_update_forbid |
core/ |
Forbid a field storage update from occurring. |
hook_field_purge_field_storage |
core/ |
Acts when a field storage definition is being purged. |
hook_field_purge_field |
core/ |
Acts when a field is being purged. |
hook_field_info_max_weight |
core/ |
Returns the maximum weight for the entity components handled by the module. |
hook_field_info_entity_type_ui_definitions_alter |
core/ |
Alters the UI field definitions. |
hook_field_info_alter |
core/ |
Perform alterations on Field API field types. |
hook_field_formatter_info_alter |
core/ |
Perform alterations on Field API formatter types. |
hook_extension |
core/ |
Declare a template file extension to be used with a theme engine. |
hook_entity_view_mode_info_alter |
core/ |
Alter the view modes for entity types. |
hook_entity_view_mode_alter |
core/ |
Change the view mode of an entity that is being displayed. |
hook_entity_view_display_alter |
core/ |
Alter the settings used for displaying an entity. |
hook_entity_view_alter |
core/ |
Alter the results of the entity build array. |
hook_entity_view |
core/ |
Act on entities being assembled before rendering. |
hook_entity_update |
core/ |
Respond to updates to an entity. |
hook_ENTITY_TYPE_view_mode_alter |
core/ |
Change the view mode of a specific entity type currently being displayed. |
hook_ENTITY_TYPE_view_alter |
core/ |
Alter the results of the entity build array for a particular entity type. |
hook_ENTITY_TYPE_view |
core/ |
Act on entities of a particular type being assembled before rendering. |
hook_ENTITY_TYPE_update |
core/ |
Respond to updates to an entity of a particular type. |
hook_ENTITY_TYPE_translation_insert |
core/ |
Respond to creation of a new entity translation of a particular type. |
hook_ENTITY_TYPE_translation_delete |
core/ |
Respond to entity translation deletion of a particular type. |
hook_ENTITY_TYPE_translation_create |
core/ |
Acts when creating a new entity translation of a specific type. |
hook_ENTITY_TYPE_storage_load |
core/ |
Act on content entities of a given type when loaded from the storage. |
hook_ENTITY_TYPE_revision_delete |
core/ |
Respond to entity revision deletion of a particular type. |
hook_ENTITY_TYPE_revision_create |
core/ |
Respond to entity revision creation. |
hook_ENTITY_TYPE_presave |
core/ |
Act on a specific type of entity before it is created or updated. |
hook_ENTITY_TYPE_prepare_form |
core/ |
Acts on a particular type of entity object about to be in an entity form. |
hook_ENTITY_TYPE_predelete |
core/ |
Act before entity deletion of a particular entity type. |
hook_ENTITY_TYPE_load |
core/ |
Act on entities of a specific type when loaded. |
hook_ENTITY_TYPE_insert |
core/ |
Respond to creation of a new entity of a particular type. |
hook_ENTITY_TYPE_form_mode_alter |
core/ |
Change the form mode of a specific entity type currently being displayed. |
hook_ENTITY_TYPE_field_values_init |
core/ |
Acts when initializing a fieldable entity object. |
hook_ENTITY_TYPE_delete |
core/ |
Respond to entity deletion of a particular type. |
hook_ENTITY_TYPE_create_access |
core/ |
Control entity create access for a specific entity type. |
hook_ENTITY_TYPE_create |
core/ |
Acts when creating a new entity of a specific type. |
hook_ENTITY_TYPE_build_defaults_alter |
core/ |
Alter entity renderable values before cache checking during rendering. |
hook_entity_type_build |
core/ |
Add to entity type definitions. |
hook_entity_type_alter |
core/ |
Alter the entity type definitions. |
hook_ENTITY_TYPE_access |
core/ |
Control entity operation access for a specific entity type. |
hook_entity_translation_insert |
core/ |
Respond to creation of a new entity translation. |
hook_entity_translation_delete |
core/ |
Respond to entity translation deletion. |
hook_entity_translation_create |
core/ |
Acts when creating a new entity translation. |
hook_entity_storage_load |
core/ |
Act on content entities when loaded from the storage. |
hook_entity_revision_delete |
core/ |
Respond to entity revision deletion. |
hook_entity_revision_create |
core/ |
Respond to entity revision creation. |
hook_entity_query_tag__TAG_alter |
core/ |
Alter an entity query that has a specific tag. |
hook_entity_query_tag__ENTITY_TYPE__TAG_alter |
core/ |
Alter an entity query for a specific entity type that has a specific tag. |
hook_entity_query_ENTITY_TYPE_alter |
core/ |
Alter an entity query for a specific entity type. |
hook_entity_query_alter |
core/ |
Alter an entity query. |
hook_entity_presave |
core/ |
Act on an entity before it is created or updated. |
hook_entity_prepare_view |
core/ |
Act on entities as they are being prepared for view. |
hook_entity_prepare_form |
core/ |
Acts on an entity object about to be shown on an entity form. |
hook_entity_preload |
core/ |
Act on an array of entity IDs before they are loaded. |
hook_entity_predelete |
core/ |
Act before entity deletion. |
hook_entity_operation_alter |
core/ |
Alter entity operations. |
hook_entity_operation |
core/ |
Declares entity operations. |
hook_entity_load |
core/ |
Act on entities when loaded. |
hook_entity_insert |
core/ |
Respond to creation of a new entity. |
hook_entity_form_mode_alter |
core/ |
Change the form mode used to build an entity form. |
hook_entity_form_display_alter |
core/ |
Alter the settings used for displaying an entity form. |
hook_entity_field_values_init |
core/ |
Acts when initializing a fieldable entity object. |
hook_entity_field_storage_info_alter |
core/ |
Alter field storage definitions for a content entity type. |
hook_entity_field_storage_info |
core/ |
Provides field storage definitions for a content entity type. |
hook_entity_field_access_alter |
core/ |
Alter the default access behavior for a given field. |
hook_entity_field_access |
core/ |
Control access to fields. |
hook_entity_extra_field_info_alter |
core/ |
Alter "pseudo-field" components on content entities. |
hook_entity_extra_field_info |
core/ |
Exposes "pseudo-field" components on content entities. |
hook_entity_display_build_alter |
core/ |
Alter the render array generated by an EntityDisplay for an entity. |
hook_entity_delete |
core/ |
Respond to entity deletion. |
hook_entity_create_access |
core/ |
Control entity create access. |
hook_entity_create |
core/ |
Acts when creating a new entity. |
hook_entity_bundle_info_alter |
core/ |
Alter the bundles for entity types. |
hook_entity_bundle_info |
core/ |
Describe the bundles for entity types. |
hook_entity_bundle_field_info_alter |
core/ |
Alter bundle field definitions. |
hook_entity_bundle_field_info |
core/ |
Provides field definitions for a specific bundle within an entity type. |
hook_entity_bundle_delete |
core/ |
Act on entity_bundle_delete(). |
hook_entity_bundle_create |
core/ |
Act on entity_bundle_create(). |
hook_entity_build_defaults_alter |
core/ |
Alter entity renderable values before cache checking during rendering. |
hook_entity_base_field_info_alter |
core/ |
Alter base field definitions for a content entity type. |
hook_entity_base_field_info |
core/ |
Provides custom base field definitions for a content entity type. |
hook_entity_access |
core/ |
Control entity operation access. |
hook_element_plugin_alter |
core/ |
Alter Element plugin definitions. |
hook_element_info_alter |
core/ |
Alter the element type information returned from modules. |
hook_editor_xss_filter_alter |
core/ |
Modifies the text editor XSS filter that will used for the given text format. |
hook_editor_js_settings_alter |
core/ |
Modifies JavaScript settings that are added for text editors. |
hook_editor_info_alter |
core/ |
Performs alterations on text editor definitions. |
hook_display_variant_plugin_alter |
core/ |
Alter display variant plugin definitions. |
hook_data_type_info_alter |
core/ |
Alter available data types for typed data wrappers. |
hook_css_alter |
core/ |
Alter CSS files before they are output on the page. |
hook_cron |
core/ |
Perform periodic actions. |
hook_countries_alter |
core/ |
Alter the default country list. |
hook_contextual_links_view_alter |
core/ |
Alter a contextual links element before it is rendered. |
hook_contextual_links_plugins_alter |
core/ |
Alter the plugin definition of contextual links. |
hook_contextual_links_alter |
core/ |
Alter contextual links before they are rendered. |
hook_config_translation_info_alter |
core/ |
Alter existing translation tabs for translation of configuration. |
hook_config_translation_info |
core/ |
Introduce dynamic translation tabs for translation of configuration. |
hook_config_schema_info_alter |
core/ |
Alter config typed data definitions. |
hook_config_import_steps_alter |
core/ |
Alter the configuration synchronization steps. |
hook_condition_info_alter |
core/ |
Alter the information provided in \Drupal\Core\Condition\ConditionManager::getDefinitions(). |
hook_comment_links_alter |
core/ |
Alter the links of a comment. |
hook_ckeditor5_plugin_info_alter |
core/ |
Modify the list of available CKEditor 5 plugins. |
hook_ckeditor4to5upgrade_plugin_info_alter |
core/ |
Modify the list of available CKEditor 4 to 5 Upgrade plugins. |
hook_cache_flush |
core/ |
Flush all persistent and static caches. |
hook_block_view_BASE_BLOCK_ID_alter |
core/ |
Provide a block plugin specific block_view alteration. |
hook_block_view_alter |
core/ |
Alter the result of \Drupal\Core\Block\BlockBase::build(). |
hook_block_build_BASE_BLOCK_ID_alter |
core/ |
Provide a block plugin specific block_build alteration. |
hook_block_build_alter |
core/ |
Alter the result of \Drupal\Core\Block\BlockBase::build(). |
hook_block_alter |
core/ |
Allow modules to alter the block plugin definitions. |
hook_block_access |
core/ |
Control access to a block instance. |
hook_batch_alter |
core/ |
Alter batch information before a batch is processed. |
hook_archiver_info_alter |
core/ |
Alter archiver information declared by other modules. |
hook_ajax_render_alter |
core/ |
Alter the Ajax command data that is sent to the client. |
Sub-Topics
Name | Location | Description |
---|---|---|
Field Widget API |
core/ |
Define Field API widget types. |
Field Types API |
core/ |
Defines field, widget, display formatter, and storage types. |
Field Formatter API |
core/ |
Define Field API formatter types. |