user_account_trading removed

examples/examples.mysql.sql

@@ -1,29 +1,19 @@
-CREATE DATABASE if not exists dtm_busi /*!40100 DEFAULT CHARACTER SET utf8mb4 */;
-
+CREATE DATABASE if not exists dtm_busi
+/*!40100 DEFAULT CHARACTER SET utf8mb4 */
+;
 drop table if exists dtm_busi.user_account;
 create table if not exists dtm_busi.user_account(
   id int(11) PRIMARY KEY AUTO_INCREMENT,
-  user_id int(11) UNIQUE ,
+  user_id int(11) UNIQUE,
   balance DECIMAL(10, 2) not null default '0',
-  create_time datetime DEFAULT now(),
-  update_time datetime DEFAULT now(),
-  key(create_time),
-  key(update_time)
-);
-
-insert into dtm_busi.user_account (user_id, balance) values (1, 10000), (2, 10000) on DUPLICATE KEY UPDATE balance=values (balance);
-
-drop table if exists dtm_busi.user_account_trading;
-create table if not exists dtm_busi.user_account_trading( -- 表示交易中被冻结的金额
-  id int(11) PRIMARY KEY AUTO_INCREMENT,
-  user_id int(11) UNIQUE ,
   trading_balance DECIMAL(10, 2) not null default '0',
   create_time datetime DEFAULT now(),
   update_time datetime DEFAULT now(),
   key(create_time),
   key(update_time)
 );
-
-insert into dtm_busi.user_account_trading (user_id, trading_balance) values (1, 0), (2, 0) on DUPLICATE KEY UPDATE trading_balance=values (trading_balance);
-
-
+insert into dtm_busi.user_account (user_id, balance)
+values (1, 10000),
+  (2, 10000) on DUPLICATE KEY
+UPDATE balance =
+values (balance);

examples/examples.postgres.sql

@@ -1,14 +1,14 @@
-CREATE SCHEMA if not exists dtm_busi /* SQLINES DEMO *** RACTER SET utf8mb4 */;
-create SCHEMA  if not exists dtm_barrier /* SQLINES DEMO *** RACTER SET utf8mb4 */;
-
+CREATE SCHEMA if not exists dtm_busi
+/* SQLINES DEMO *** RACTER SET utf8mb4 */
+;
 drop table if exists dtm_busi.user_account;
 -- SQLINES LICENSE FOR EVALUATION USE ONLY
 create sequence if not exists dtm_busi.user_account_seq;
-
 create table if not exists dtm_busi.user_account(
   id int PRIMARY KEY DEFAULT NEXTVAL ('dtm_busi.user_account_seq'),
-  user_id int UNIQUE ,
+  user_id int UNIQUE,
   balance DECIMAL(10, 2) not null default '0',
+  trading_balance DECIMAL(10, 2) not null default '0',
   create_time timestamp(0) DEFAULT now(),
   update_time timestamp(0) DEFAULT now()
 );
@@ -16,47 +16,7 @@ create table if not exists dtm_busi.user_account(
 create index if not exists create_idx on dtm_busi.user_account(create_time);
 -- SQLINES LICENSE FOR EVALUATION USE ONLY
 create index if not exists update_idx on dtm_busi.user_account(update_time);
-
 TRUNCATE dtm_busi.user_account;
-insert into dtm_busi.user_account (user_id, balance) values (1, 10000), (2, 10000);
-
-drop table if exists dtm_busi.user_account_trading;
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create sequence if not exists dtm_busi.user_account_trading_seq;
-
-create table if not exists dtm_busi.user_account_trading( -- SQLINES DEMO *** �冻结的金额
-  id int PRIMARY KEY DEFAULT NEXTVAL ('dtm_busi.user_account_trading_seq'),
-  user_id int UNIQUE ,
-  trading_balance DECIMAL(10, 2) not null default '0',
-  create_time timestamp(0) DEFAULT now(),
-  update_time timestamp(0) DEFAULT now()
-);
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create index if not exists create_idx on dtm_busi.user_account_trading(create_time);
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create index if not exists update_idx on dtm_busi.user_account_trading(update_time);
-
-TRUNCATE dtm_busi.user_account_trading;
-insert into dtm_busi.user_account_trading (user_id, trading_balance) values (1, 0), (2, 0);
-
-
-drop table if exists dtm_barrier.barrier;
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create sequence if not exists dtm_barrier.barrier_seq;
-
-create table if not exists dtm_barrier.barrier(
-  id int PRIMARY KEY DEFAULT NEXTVAL ('dtm_barrier.barrier_seq'),
-  trans_type varchar(45) default '' ,
-  gid varchar(128) default'',
-  branch_id varchar(128) default '',
-  branch_type varchar(45) default '',
-  reason varchar(45) default '' ,
-  result varchar(2047) default null ,
-  create_time timestamp(0) DEFAULT now(),
-  update_time timestamp(0) DEFAULT now(),
-  UNIQUE (gid, branch_id, branch_type)
-);
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create index if not exists create_idx on dtm_barrier.barrier(create_time);
--- SQLINES LICENSE FOR EVALUATION USE ONLY
-create index if not exists update_idx on dtm_barrier.barrier(update_time);
+insert into dtm_busi.user_account (user_id, balance)
+values (1, 10000),
+  (2, 10000);

examples/http_tcc_barrier.go

@@ -37,7 +37,7 @@ const transInUID = 1
 const transOutUID = 2
 
 func adjustTrading(db dtmcli.DB, uid int, amount int) error {
-	affected, err := dtmcli.DBExec(db, "update dtm_busi.user_account_trading set trading_balance=trading_balance + ? where user_id=? and trading_balance + ? + (select balance from dtm_busi.user_account where user_id=?) >= 0", amount, uid, amount, uid)
+	affected, err := dtmcli.DBExec(db, "update dtm_busi.user_account set trading_balance=trading_balance + ? where user_id=? and trading_balance + ? + balance >= 0", amount, uid, amount)
 	if err == nil && affected == 0 {
 		return fmt.Errorf("update error, maybe balance not enough")
 	}
@@ -45,12 +45,9 @@ func adjustTrading(db dtmcli.DB, uid int, amount int) error {
 }
 
 func adjustBalance(db dtmcli.DB, uid int, amount int) error {
-	affected, err := dtmcli.DBExec(db, "update dtm_busi.user_account_trading set trading_balance = trading_balance + ? where user_id=?;", -amount, uid)
-	if err == nil && affected == 1 {
-		affected, err = dtmcli.DBExec(db, "update dtm_busi.user_account set balance=balance+? where user_id=?", amount, uid)
-	}
+	affected, err := dtmcli.DBExec(db, "update dtm_busi.user_account set trading_balance = trading_balance - ?, balance=balance+? where user_id=?;", amount, amount, uid)
 	if err == nil && affected == 0 {
-		return fmt.Errorf("update 0 rows")
+		return fmt.Errorf("update user_account 0 rows")
 	}
 	return err
 }