Function ConnectToDatabase

app.go:583–617

ConnectToDatabase validates and connects to the configured database, then tests the connection.

(app *App)

// ConnectToDatabase validates and connects to the configured database, then
// tests the connection.
func ConnectToDatabase(app *App) error {
	// Check database configuration
	if app.cfg.Database.Type == driverMySQL && app.cfg.Database.User == "" {
		return fmt.Errorf("Database user not set.")
	}
	if app.cfg.Database.Host == "" {
		app.cfg.Database.Host = "localhost"
	}
	if app.cfg.Database.Database == "" {
		app.cfg.Database.Database = "writefreely"
	}

	// TODO: check err
	connectToDatabase(app)

	// Test database connection
	err := app.db.Ping()
	if err != nil {
		return fmt.Errorf("Database ping failed: %s", err)
	}
	log.Info("Connected to database.")

	ver, err := app.db.version()
	if err != nil {
		log.Error("Unable to get DB version: %v", err)
	} else {
		log.Info("Database version: %v", ver)
		if app.cfg.Database.Type == driverMySQL && strings.HasPrefix(ver, "5.") {
			log.Info("Enabling compatibility for MySQL v5.x")
			app.db.useSpencerRegex = true
		}
	}

	return nil
}

// FormatVersion constructs the version string for the application
func FormatVersion() string {