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add_data_migrations.go

000_add_data_migrations.go - Overview​

  1. Overview This file defines a SQL migration to create a data_migrations table if it doesn't already exist. It also registers the up and down migration functions.

  2. Detailed Documentation

type: addDataMigrations​

  • Purpose: Represents a migration to add the data_migrations table.

func: NewAddDataMigrationsFactory() factory.ProviderFactory[SQLMigration, Config]​

  • Purpose: Creates a new factory for addDataMigrations.
  • Returns: A factory.ProviderFactory that can create addDataMigrations instances.

func: newAddDataMigrations(_ context.Context, _ factory.ProviderSettings, _ Config) (SQLMigration, error)​

  • Purpose: Creates a new instance of addDataMigrations.
  • Parameters:
    • _: A context.Context (unused).
    • _: A factory.ProviderSettings (unused).
    • _: A Config (unused).
  • Returns: A new SQLMigration instance (specifically, *addDataMigrations) and an error (which is always nil in this implementation).

func (migration *addDataMigrations) Register(migrations *migrate.Migrations) error​

  • Purpose: Registers the up and down migration functions with the provided migrate.Migrations instance.
  • Parameters:
    • migrations: A pointer to a migrate.Migrations instance.
  • Returns: An error if registration fails, nil otherwise.

func (migration *addDataMigrations) Up(ctx context.Context, db *bun.DB) error​

  • Purpose: Executes the "up" migration, which creates the data_migrations table if it doesn't exist.
  • Parameters:
    • ctx: A context.Context.
    • db: A pointer to a bun.DB instance.
  • Returns: An error if table creation fails, nil otherwise.

func (migration *addDataMigrations) Down(ctx context.Context, db *bun.DB) error​

  • Purpose: Executes the "down" migration. Currently a no-op.
  • Parameters:
    • ctx: A context.Context.
    • db: A pointer to a bun.DB instance.
  • Returns: Always nil.

  1. Code Examples N/A

  2. Clarity and Accuracy The documentation reflects the code accurately.

  3. Markdown & MDX Perfection The markdown is properly formatted.

  4. Edge Cases To Avoid Breaking MDX No MDX errors should occur.

  5. Getting Started Relevance Include in Getting Started: NO