history.module

Records which users have read which content.

@todo

• Generic helper for _forum_user_last_visit() + history_read().
• Generic helper for node_mark().

File

core/modules/history/history.module

Functions

Name	Description
history_attach_timestamp	#lazy_builder callback; attaches the last read timestamp for a node.
history_cron	Implements hook_cron().
history_help	Implements hook_help().
history_node_delete	Implements hook_ENTITY_TYPE_delete() for node entities.
history_node_view_alter	Implements hook_ENTITY_TYPE_view_alter() for node entities.
history_read	Retrieves the timestamp for the current user's last view of a specified node.
history_read_multiple	Retrieves the last viewed timestamp for each of the passed node IDs.
history_user_cancel	Implements hook_user_cancel().
history_user_delete	Implements hook_ENTITY_TYPE_delete() for user entities.
history_write	Updates 'last viewed' timestamp of the specified entity for the current user.

Constants

Name	Description
HISTORY_READ_LIMIT	Entities changed before this time are always shown as read.