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Title Object type File name Summary
hook_field_storage_pre_update function modules/field/field.api.php Act before the storage backends update field data.
hook_field_storage_purge function modules/field/field.api.php Remove field storage information when field data is purged.
hook_field_storage_purge_field function modules/field/field.api.php Remove field storage information when a field record is purged.
hook_field_storage_purge_field_instance function modules/field/field.api.php Remove field storage information when a field instance is purged.
hook_field_storage_query function modules/field/field.api.php Execute an EntityFieldQuery.
hook_field_storage_update_field function modules/field/field.api.php Update the storage information for a field.
hook_field_storage_write function modules/field/field.api.php Write field data for an entity.
hook_field_update function modules/field/field.api.php Define custom update behavior for this module's field data.
hook_field_update_field function modules/field/field.api.php Act on a field being updated.
hook_field_update_forbid function modules/field/field.api.php Forbid a field update from occurring.
hook_field_update_instance function modules/field/field.api.php Act on a field instance being updated.
hook_field_validate function modules/field/field.api.php Validate this module's field data.
hook_field_widget_error function modules/field/field.api.php Flag a field-level validation error.
hook_field_widget_form function modules/field/field.api.php Return the form for a single field widget.
hook_field_widget_form_alter function modules/field/field.api.php Alter forms for field widgets provided by other modules.
hook_field_widget_info function modules/field/field.api.php Expose Field API widget types.
hook_field_widget_info_alter function modules/field/field.api.php Perform alterations on Field API widget types.
hook_field_widget_properties_alter function modules/field/field.api.php Alters the widget properties of a field instance before it gets displayed.
hook_field_widget_properties_ENTITY_TYPE_alter function modules/field/field.api.php Alters the widget properties of a field instance on a given entity type
before it gets displayed.
hook_field_widget_settings_form function modules/field_ui/field_ui.api.php Add settings to a widget settings form.
hook_field_widget_WIDGET_TYPE_form_alter function modules/field/field.api.php Alter widget forms for a specific widget provided by another module.
hook_filetransfer_info function modules/system/system.api.php Register information about FileTransfer classes provided by a module.
hook_filetransfer_info_alter function modules/system/system.api.php Alter the FileTransfer class registry.
hook_file_copy function modules/system/system.api.php Respond to a file that has been copied.
hook_file_delete function modules/system/system.api.php Respond to a file being deleted.
hook_file_download function modules/system/system.api.php Control access to private file downloads and specify HTTP headers.
hook_file_download_access function modules/file/file.api.php Control download access to files.
hook_file_download_access_alter function modules/file/file.api.php Alter the access rules applied to a file download.
hook_file_insert function modules/system/system.api.php Respond to a file being added.
hook_file_load function modules/system/system.api.php Load additional information into file objects.
hook_file_mimetype_mapping_alter function modules/system/system.api.php Alter MIME type mappings used to determine MIME type from a file extension.
hook_file_move function modules/system/system.api.php Respond to a file that has been moved.
hook_file_presave function modules/system/system.api.php Act on a file being inserted or updated.
hook_file_update function modules/system/system.api.php Respond to a file being updated.
hook_file_url_alter function modules/system/system.api.php Alter the URL to a file.
hook_file_validate function modules/system/system.api.php Check that files meet a given criteria.
hook_filter_format_disable function modules/filter/filter.api.php Perform actions when a text format has been disabled.
hook_filter_format_insert function modules/filter/filter.api.php Perform actions when a new text format has been created.
hook_filter_format_update function modules/filter/filter.api.php Perform actions when a text format has been updated.
hook_filter_info function modules/filter/filter.api.php Define content filters.
hook_filter_info_alter function modules/filter/filter.api.php Perform alterations on filter definitions.
hook_flush_caches function modules/system/system.api.php Add a list of cache tables to be cleared.
hook_form function modules/node/node.api.php Display a node editing form.
hook_forms function modules/system/system.api.php Map form_ids to form builder functions.
hook_form_alter function modules/system/system.api.php Perform alterations before a form is rendered.
hook_form_BASE_FORM_ID_alter function modules/system/system.api.php Provide a form-specific alteration for shared ('base') forms.
hook_form_FORM_ID_alter function modules/system/system.api.php Provide a form-specific alteration instead of the global hook_form_alter().
hook_form_system_theme_settings_alter function modules/system/theme.api.php Allow themes to alter the theme-specific settings form.
hook_help function modules/system/system.api.php Provide online user help.
hook_hook_info function modules/system/system.api.php Defines one or more hooks that are exposed by a module.

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