Functions - main - drupal
| Title | Deprecated | File name | Summary | Direct uses | Strings |
|---|---|---|---|---|---|
| hook_form_BASE_FORM_ID_alter | core/ |
Provide a form-specific alteration for shared ('base') forms. | |||
| hook_form_FORM_ID_alter | core/ |
Provide a form-specific alteration instead of the global hook_form_alter(). | |||
| hook_form_system_theme_settings_alter | core/ |
Allow themes to alter the theme-specific settings form. | |||
| hook_help | core/ |
Provide online user help. | |||
| hook_help_section_info_alter | core/ |
Perform alterations on help page section plugin definitions. | |||
| hook_help_topics_info_alter | core/ |
Perform alterations on help topic definitions. | |||
| hook_icon_pack_alter | core/ |
Alter icon pack definitions. | |||
| hook_image_effect_info_alter | core/ |
Alter the information provided in \Drupal\image\Annotation\ImageEffect. | |||
| hook_image_style_flush | core/ |
Respond to image style flushing. | |||
| hook_install | core/ |
Perform setup tasks when the module is installed. | |||
| hook_install_tasks | core/ |
Return an array of tasks to be performed by an installation profile. | |||
| hook_install_tasks_alter | core/ |
Alter the full list of installation tasks. | |||
| hook_jsonapi_entity_field_filter_access | core/ |
Restricts filtering access to the given field. | |||
| hook_jsonapi_entity_filter_access | core/ |
Controls access when filtering by entity data via JSON:API. | |||
| hook_jsonapi_ENTITY_TYPE_filter_access | core/ |
Controls access to filtering by entity data via JSON:API. | |||
| hook_js_alter | core/ |
Alters JavaScript before it is presented on the page. | |||
| hook_js_settings_alter | core/ |
Perform necessary alterations to the JavaScript settings (drupalSettings). | |||
| hook_js_settings_build | core/ |
Modify the JavaScript settings (drupalSettings). | |||
| hook_language_fallback_candidates_alter | core/ |
Allow modules to alter the language fallback candidates. | |||
| hook_language_fallback_candidates_OPERATION_alter | core/ |
Allow modules to alter the fallback candidates for specific operations. | |||
| hook_language_negotiation_info_alter | core/ |
Perform alterations on language negotiation methods. | |||
| hook_language_switch_links_alter | core/ |
Perform alterations on language switcher links. | |||
| hook_language_types_info | core/ |
Define language types. | |||
| hook_language_types_info_alter | core/ |
Perform alterations on language types. | |||
| hook_layout_alter | core/ |
Allow modules to alter layout plugin definitions. | |||
| hook_library_info_alter | core/ |
Alter libraries provided by an extension. | |||
| hook_library_info_build | core/ |
Add dynamic library definitions. | |||
| hook_link_alter | core/ |
Alter the parameters for links. | |||
| hook_locale_translation_projects_alter | core/ |
Alter the list of projects to be updated by locale's interface translation. | |||
| hook_local_tasks_alter | core/ |
Alter local tasks plugins. | |||
| hook_mail | core/ |
Prepares a message based on parameters. | |||
| hook_mail_alter | core/ |
Alter an email message created with MailManagerInterface->mail(). | |||
| hook_mail_backend_info_alter | core/ |
Alter the list of mail backend plugin definitions. | |||
| hook_media_source_info_alter | core/ |
Alters the information provided in \Drupal\media\Annotation\MediaSource. | |||
| hook_menu_links_discovered_alter | core/ |
Alters all the menu links discovered by the menu link plugin manager. | |||
| hook_menu_local_actions_alter | core/ |
Alter local actions plugins. | |||
| hook_menu_local_tasks_alter | core/ |
Alter local tasks displayed on the page before they are rendered. | |||
| hook_migrate_MIGRATION_ID_prepare_row | core/ |
Allows adding data to a row for a migration with the specified ID. | |||
| hook_migrate_prepare_row | core/ |
Allows adding data to a row before processing it. | |||
| hook_migration_plugins_alter | core/ |
Allows altering the list of discovered migration plugins. | |||
| hook_modules_installed | core/ |
Perform necessary actions after modules are installed. | 1 | ||
| hook_modules_uninstalled | core/ |
Perform necessary actions after modules are uninstalled. | 1 | ||
| hook_module_preinstall | core/ |
Perform necessary actions before a module is installed. | 1 | ||
| hook_module_preuninstall | core/ |
Perform necessary actions before a module is uninstalled. | 1 | ||
| hook_navigation_content_top | core/ |
Provide content for Navigation content_top section. | |||
| hook_navigation_content_top_alter | core/ |
Alter replacement values for placeholder tokens. | |||
| hook_navigation_defaults | core/ |
Provides default content for the Navigation bar. | |||
| hook_navigation_menu_link_tree_alter | core/ |
Alter the content of a given Navigation menu link tree. | |||
| hook_node_access_records | core/ |
Set permissions for a node to be written to the database. | |||
| hook_node_access_records_alter | core/ |
Alter permissions for a node before it is written to the database. |
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.