feat: initial commit

main.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"context"
+	"embed"
+	"fmt"
+	"time"
+
+	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/golang-migrate/migrate/v4/database/sqlite3"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+//go:embed migrations/*.sql
+var migrations embed.FS
+
+func main() {
+	ctx := context.Background()
+
+	// Execute migrations
+	migrationsFS, err := iofs.New(migrations, "migrations")
+	if err != nil {
+		panic(err)
+	}
+	migrator, err := migrate.NewWithSourceInstance("iofs", migrationsFS, "sqlite3://test.db")
+	if err != nil {
+		panic(err)
+	}
+	if err := migrator.Up(); err != nil && err != migrate.ErrNoChange {
+		panic(err)
+	}
+
+	// Connect to database
+	db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
+	if err != nil {
+		panic("failed to connect database")
+	}
+
+	// Insert
+	err = gorm.G[EntryEntity](db).Create(ctx, &EntryEntity{
+		Message:   "Hello World",
+		Timestamp: time.Now().Format(time.RFC3339),
+	})
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println("successfully added an entry")
+
+	// Read
+	entries, err := gorm.G[EntryEntity](db).Find(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println("successfully read all entries")
+	for _, entry := range entries {
+		fmt.Printf("- [%04d][%s]: %s\n", entry.ID, entry.Timestamp, entry.Message)
+	}
+}