Added plan of tests

go-code-samples/database-sql-package-goproject/transaction/transaction.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/go-sql-driver/mysql"
+)
+
+var db *sql.DB
+
+type Album struct {
+	ID       int64
+	Title    string
+	Artist   string
+	Price    float32
+	Quantity int64
+}
+
+type Album_trx struct {
+	TRX_ID    int64
+	TRX_CHECK int64
+}
+
+func main() {
+	// Capture connection properties.
+	cfg := mysql.Config{
+		User:   os.Getenv("DBUSER"),
+		Passwd: os.Getenv("DBPASS"),
+		Net:    "tcp",
+		Addr:   "127.0.0.1:3306",
+		DBName: "recordings",
+	}
+	// Get a database handle.
+	var err error
+	db, err = sql.Open("mysql", cfg.FormatDSN())
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	pingErr := db.Ping()
+	if pingErr != nil {
+		log.Fatal(pingErr)
+	}
+	fmt.Println("Connected!")
+
+	// Start the transaction
+	ctx := context.Background()
+	tx, err := db.BeginTx(ctx, nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+	// First query
+	_, err = tx.ExecContext(ctx, "INSERT INTO album (title, artist, price, quantity) VALUES ('Master of Puppets', 'Metallica', '49', '1')")
+	if err != nil {
+		tx.Rollback()
+		return
+	}
+
+	// Second query
+	_, err = tx.ExecContext(ctx, "INSERT INTO album_trx (trx_check) VALUES (1)")
+	if err != nil {
+		tx.Rollback()
+		fmt.Println("Transaction declined")
+		return
+	}
+
+	// If no errors, commit the transaction
+	err = tx.Commit()
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println("Transaction accepted!")
+}