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package database
import "fmt"
// database init error
type InitError struct {
path string
err error
}
func (e *InitError) Error() string {
return fmt.Sprintf("Failed to open database : %s", e.path)
}
func (e *InitError) Unwrap() error { return e.err }
func newInitError(path string, err error) error {
return &InitError{
path: path,
err: err,
}
}
// database migration error
type MigrationError struct {
version int
err error
}
func (e *MigrationError) Error() string {
return fmt.Sprintf("Failed to migrate database to version %d : %s", e.version, e.err)
}
func (e *MigrationError) Unwrap() error { return e.err }
func newMigrationError(version int, err error) error {
return &MigrationError{
version: version,
err: err,
}
}
// database transaction error
type TransactionError struct {
msg string
err error
}
func (e *TransactionError) Error() string {
return fmt.Sprintf("Failed to perform transaction : %s", e.msg)
}
func (e *TransactionError) Unwrap() error { return e.err }
func newTransactionError(msg string, err error) error {
return &TransactionError{
msg: msg,
err: err,
}
}
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