edb-pgsql: Add an updatable view for the lastlog table

This allows the eurephia-auth user to only update the columns
in the lastlog which it is supposed to update.

Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>

1 files changed, 15 insertions, 0 deletions

diff --git a/database/postgresql/sql-schema.sql b/database/postgresql/sql-schema.sql
index dc75a82..6634344 100644
--- a/database/postgresql/sql-schema.sql
+++ b/database/postgresql/sql-schema.sql
@@ -95,6 +95,21 @@ CREATE TABLE lastlog (
 );
 CREATE UNIQUE INDEX lastlog_sessionkey ON lastlog(sessionkey);
 
+-- View lastlog_update: A view with columns which is allowed to be updated
+CREATE VIEW lastlog_update AS
+       SELECT sessionkey, sessionstatus, macaddr, logout, session_deleted, session_duration,
+              bytes_sent, bytes_received
+         FROM lastlog;
+CREATE RULE lastlog_allow_update
+       AS ON UPDATE TO lastlog_update
+       DO INSTEAD UPDATE lastlog
+                         SET sessionstatus = NEW.sessionstatus, macaddr = NEW.macaddr,
+                             logout = NEW.logout, session_deleted = NEW.session_deleted,
+                             session_duration = NEW.session_duration,
+                             bytes_sent = NEW.bytes_sent, bytes_received = NEW.bytes_received
+                   WHERE sessionkey = OLD.sessionkey
+                         AND sessionstatus = OLD.sessionstatus;
+
 -- Table macaddr_history: This keeps an overview over which MAC addresses a session
 --                        have used, in case the client changes the MAC address.
 CREATE TABLE macaddr_history (