some modifications in sql code

1 files changed, 97 insertions, 0 deletions

diff --git a/src/exchangedb/exchange_do_batch_reserves_in_insert.sql b/src/exchangedb/exchange_do_batch_reserves_in_insert.sql
new file mode 100644
index 00000000..ef4c84aa
--- /dev/null
+++ b/src/exchangedb/exchange_do_batch_reserves_in_insert.sql
@@ -0,0 +1,97 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2014--2022 Taler Systems SA
+--
+-- TALER is free software; you can redistribute it and/or modify it under the
+-- terms of the GNU General Public License as published by the Free Software
+-- Foundation; either version 3, or (at your option) any later version.
+--
+-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+-- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with
+-- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+--
+
+CREATE OR REPLACE FUNCTION exchange_do_batch_reserves_in_insert(
+  IN in_reserve_pub BYTEA,
+  IN in_expiration_date INT8,
+  IN in_gc_date INT8,
+  IN in_wire_ref INT8,
+  IN in_credit_val INT8,
+  IN in_credit_frac INT4,
+  IN in_exchange_account_name VARCHAR,
+  IN in_exectution_date INT8,
+  IN in_wire_source_h_payto BYTEA,    ---h_payto
+  IN in_payto_uri VARCHAR,
+  IN in_reserve_expiration INT8,
+  IN in_notify text,
+  OUT out_reserve_found BOOLEAN,
+  OUT transaction_duplicate BOOLEAN,
+  OUT ruuid INT8)
+LANGUAGE plpgsql
+AS $$
+
+BEGIN
+  --SIMPLE INSERT ON CONFLICT DO NOTHING
+  INSERT INTO wire_targets
+    (wire_target_h_payto
+    ,payto_uri)
+    VALUES
+    (in_wire_source_h_payto
+    ,in_payto_uri)
+  ON CONFLICT DO NOTHING;
+
+  INSERT INTO reserves
+    (reserve_pub
+    ,current_balance_val
+    ,current_balance_frac
+    ,expiration_date
+    ,gc_date)
+    VALUES
+    (in_reserve_pub
+    ,in_credit_val
+    ,in_credit_frac
+    ,in_expiration_date
+    ,in_gc_date)
+   ON CONFLICT DO NOTHING
+   RETURNING reserve_uuid INTO ruuid;
+   PERFORM pg_notify(in_notify, NULL);
+
+  IF FOUND
+  THEN
+    -- We made a change, so the reserve did not previously exist.
+    out_reserve_found = FALSE;
+  ELSE
+    -- We made no change, which means the reserve existed.
+    out_reserve_found = TRUE; /*RESERVE EXISTED BUT WE DO NOT KNOW ANY INFORMATIONS ABOUT TRANSACTION, RETURN*/
+    RETURN;
+  END IF;
+
+  INSERT INTO reserves_in
+    (reserve_pub
+    ,wire_reference
+    ,credit_val
+    ,credit_frac
+    ,exchange_account_section
+    ,wire_source_h_payto
+    ,execution_date)
+    VALUES
+    (in_reserve_pub
+    ,in_wire_ref
+    ,in_credit_val
+    ,in_credit_frac
+    ,in_exchange_account_name
+    ,in_wire_source_h_payto
+    ,in_expiration_date)
+    ON CONFLICT DO NOTHING;
+  IF FOUND
+  THEN
+    transaction_duplicate = FALSE;  /*HAPPY PATH THERE IS NO DUPLICATE TRANS AND NEW RESERVE*/
+    RETURN;
+  ELSE
+    transaction_duplicate = TRUE; /*HAPPY PATH IF THERE IS A DUPLICATE TRANS WE JUST NEED TO ROLLBACK COMPLAIN*/
+    RETURN;
+  END IF;
+END $$;