Merge branch 'hotfix/v2.3.9' into develop

db/postgresql/hotfix2.3.9.sql

+DROP FUNCTION IF EXISTS public.deletemodulebonus(pteacherid integer, pdisciplineid integer);
+CREATE OR REPLACE FUNCTION public.deletemodulebonus(pteacherid integer, pdisciplineid integer)
+  RETURNS integer
+LANGUAGE plpgsql
+AS $function$
+DECLARE vBonusModuleID INT DEFAULT -1;
+begin
+  --	select public.deletemodulebonus(
+  --	:pteacherid,	-- put the pteacherid parameter value instead of 'pteacherid' (int4)
+  --	:pdisciplineid 	-- put the pdisciplineid parameter value instead of 'pdisciplineid' (int4)
+  --);
+
+  select * from GetBonusModule(pDisciplineID) into vBonusModuleID;
+  CASE WHEN  NOT InternalIsTeacherAuthor(pTeacherID, pDisciplineID) OR
+             InternalIsMapLocked(pDisciplineID)
+    THEN
+      RETURN -1;
+  else null;
+  END CASE;
+
+  CASE WHEN vBonusModuleID <= 0 THEN
+    RETURN -1;
+  else null;
+  END CASE;
+
+  DELETE FROM submodules
+  WHERE vBonusModuleID = submodules.ModuleID;
+
+  DELETE FROM modules
+  WHERE vBonusModuleID = modules.ID;
+  --LIMIT 1;
+
+  RETURN 0;
+END
+$function$;