Function IsUniqueConstraintError

dialect/sql/sqlgraph/errors.go:23–37

IsUniqueConstraintError reports if the error resulted from a DB uniqueness constraint violation. e.g. duplicate value in unique index.

(err error)

// IsUniqueConstraintError reports if the error resulted from a DB uniqueness constraint violation.
// e.g. duplicate value in unique index.
func IsUniqueConstraintError(err error) bool {
	if err == nil {
		return false
	}
	for _, s := range []string{
		"Error 1062",                 // MySQL
		"violates unique constraint", // Postgres
		"UNIQUE constraint failed",   // SQLite
	} {
		if strings.Contains(err.Error(), s) {
			return true
		}
	}
	return false
}

// IsForeignKeyConstraintError reports if the error resulted from a database foreign-key constraint violation.
// e.g. parent row does not exist.