diff --git a/db/postgresql/add_rate_sync_logs_15_01_18.sql b/db/postgresql/add_rate_sync_logs_15_01_18.sql
index 5b4024477ed1791cb7d7bab9051ee207d7154ccb..d5587acaeb5d71ab3dd7ab29cdc410d3b82b3a2a 100644
--- a/db/postgresql/add_rate_sync_logs_15_01_18.sql
+++ b/db/postgresql/add_rate_sync_logs_15_01_18.sql
@@ -10,6 +10,7 @@ CREATE SEQUENCE seq_logs_form_export
 CREATE TABLE logs_form_export (
   id integer DEFAULT nextval('seq_logs_form_export'::regclass) NOT NULL,
   discipline_id integer NOT NULL,
+  group_id integer NOT NULL,
   account_id integer NOT NULL,
   date timestamp(0) without time zone DEFAULT now() NOT NULL
 );
@@ -19,19 +20,29 @@ CREATE INDEX key_logs_form_export ON logs_form_export USING btree (discipline_id
 ALTER TABLE ONLY logs_form_export
   ADD CONSTRAINT logs_form_export_pkey PRIMARY KEY (id);
 
-CREATE OR REPLACE FUNCTION public.log_form_export(paccountid integer, pdisciplineid integer)
+ALTER TABLE ONLY logs_form_export
+  ADD CONSTRAINT logs_form_export_ibfk_1 FOREIGN KEY (discipline_id) REFERENCES disciplines(id);
+
+ALTER TABLE ONLY logs_form_export
+  ADD CONSTRAINT logs_form_export_ibfk_2 FOREIGN KEY (group_id) REFERENCES study_groups(id);
+
+ALTER TABLE ONLY logs_form_export
+  ADD CONSTRAINT logs_form_export_ibfk_3 FOREIGN KEY (account_id) REFERENCES accounts(id);
+
+DROP FUNCTION IF EXISTS public.log_form_export(paccountid integer, pdisciplineid integer, pgroupid integer);
+CREATE OR REPLACE FUNCTION public.log_form_export(paccountid integer, pdisciplineid integer, pgroupid integer)
   RETURNS integer
 LANGUAGE plpgsql
 AS $function$
 begin
-  INSERT INTO logs_form_export (discipline_id, account_id) VALUES (pdisciplineid, paccountid);
+  INSERT INTO logs_form_export (discipline_id, group_id, account_id) VALUES (pdisciplineid, pgroupid, paccountid);
   RETURN 0;
 END
 $function$;
 
-drop function if exists public.get_form_export_date(pdisciplineid integer);
-CREATE OR REPLACE FUNCTION public.get_form_export_date(pdisciplineid integer)
-  RETURNS integer
+drop function if exists public.get_form_export_date(pdisciplineid integer, pgroupid integer);
+CREATE OR REPLACE FUNCTION public.get_form_export_date(pdisciplineid integer, pgroupid integer)
+  RETURNS DATE
 LANGUAGE plpgsql
 AS $function$
 DECLARE vLastDate DATE DEFAULT NULL;
@@ -39,8 +50,41 @@ begin
   SELECT logs_form_export.date INTO vLastDate 
   FROM logs_form_export 
       WHERE logs_form_export.discipline_id = pdisciplineid
+         AND logs_form_export.group_id = pgroupid
       ORDER BY logs_form_export.date DESC
       LIMIT 1;
    return vLastDate;
 END
+$function$;
+
+drop function if exists public.is_form_outdated(pdisciplineid integer, pgroupid integer, psemesterid integer);
+CREATE OR REPLACE FUNCTION public.is_form_outdated(pdisciplineid integer, pgroupid integer, psemesterid integer)
+  RETURNS integer
+LANGUAGE plpgsql
+AS $function$
+DECLARE vLastDate DATE DEFAULT NULL;
+        vCountNewGrades integer DEFAULT 0;
+begin
+  SELECT logs_form_export.date INTO vLastDate
+  FROM logs_form_export
+  WHERE logs_form_export.discipline_id = pdisciplineid
+        AND logs_form_export.group_id = pgroupid
+  ORDER BY logs_form_export.date DESC
+  LIMIT 1;
+
+  SELECT count(logs_rating.date) INTO vCountNewGrades FROM
+    logs_rating JOIN students_groups
+      ON logs_rating.recordbookid = students_groups.recordbookid
+    JOIN submodules ON logs_rating.submoduleid = submodules.id
+    JOIN modules ON submodules.moduleid = modules.id
+    JOIN disciplines ON modules.disciplineid = disciplines.id
+  WHERE students_groups.semesterid = psemesterid
+        AND students_groups.groupid = pgroupid
+        AND disciplines.id = pdisciplineid
+        AND logs_rating.date > vLastDate
+  group by logs_rating.date
+  ORDER BY logs_rating.date DESC;
+
+  return vCountNewGrades;
+END
 $function$;
\ No newline at end of file