GORM Explained: Setup, Models, CRUD and Key Patterns for Go Developers

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GORM is the most widely used object-relational mapper in the Go ecosystem, designed to simplify database interactions that Go's low-level database/sql package leaves to developers manually. It supports PostgreSQL, MySQL, SQLite, and SQL Server through swappable drivers, and offers struct-based models, auto migrations, a chainable query builder, associations, hooks, and built-in transaction support. Models are defined as plain Go structs with tags that map to table columns, constraints, and indexes, while fields like CreatedAt, UpdatedAt, and DeletedAt are handled automatically. GORM's AutoMigrate feature creates tables and adds missing columns safely but avoids destructive changes, making it suitable for local development rather than full production schema management. For production environments, many teams pair GORM with dedicated migration tools such as golang-migrate or Atlas to handle complex schema changes reliably.

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ProgrammingDEV Community ·

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