Database: Add credit table

sql/v01/11.timestamp-trigger.sql

@@ -283,4 +283,34 @@ CREATE TRIGGER t_payment_member_d_mtime_payment_variant
     AFTER DELETE ON payment_member FOR EACH ROW
 BEGIN
     UPDATE payment_variant SET mtime = UNIXEPOCH() WHERE (year, avnr) = (OLD.year, OLD.avnr);
-END;
+END;
+
+----------------------------------------------------------------
+
+CREATE TRIGGER t_credit_i_ctime
+    AFTER INSERT ON credit FOR EACH ROW
+    WHEN NEW.ctime != UNIXEPOCH()
+BEGIN
+    UPDATE credit SET ctime = UNIXEPOCH() WHERE (year, tgnr) = (NEW.year, NEW.tgnr);
+END;
+
+CREATE TRIGGER t_credit_u_ctime
+    BEFORE UPDATE ON credit FOR EACH ROW
+    WHEN OLD.ctime != NEW.ctime
+BEGIN
+    SELECT RAISE(ABORT, 'It is not allowed to change ctime');
+END;
+
+CREATE TRIGGER t_credit_i_mtime
+    AFTER INSERT ON credit FOR EACH ROW
+    WHEN NEW.mtime != UNIXEPOCH()
+BEGIN
+    UPDATE credit SET mtime = UNIXEPOCH() WHERE (year, tgnr) = (NEW.year, NEW.tgnr);
+END;
+
+CREATE TRIGGER t_credit_u_mtime
+    AFTER UPDATE ON credit FOR EACH ROW
+    WHEN NEW.mtime != UNIXEPOCH()
+BEGIN
+    UPDATE credit SET mtime = UNIXEPOCH() WHERE (year, tgnr) = (NEW.year, NEW.tgnr);
+END;