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Reviewed-on: #8
111 lines
1.8 KiB
Go
111 lines
1.8 KiB
Go
package domain
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import (
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"errors"
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"fmt"
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)
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var (
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ErrRequired = errors.New("cannot be blank")
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ErrBase64 = errors.New("must be encoded in Base64")
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)
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type ErrorCode uint8
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const (
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ErrorCodeUnknown ErrorCode = iota
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ErrorCodeEntityNotFound
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ErrorCodeValidationError
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ErrorCodeAlreadyExists
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)
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func (e ErrorCode) String() string {
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switch e {
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case ErrorCodeEntityNotFound:
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return "entity-not-found"
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case ErrorCodeValidationError:
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return "validation-error"
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case ErrorCodeAlreadyExists:
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return "already-exists"
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case ErrorCodeUnknown:
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fallthrough
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default:
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return "internal-server-error"
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}
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}
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type Error interface {
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error
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UserError() string
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Code() ErrorCode
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}
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type ValidationError struct {
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Field string
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Err error
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}
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func (e ValidationError) Error() string {
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return fmt.Sprintf("%s: %s", e.Field, e.Err)
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}
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func (e ValidationError) UserError() string {
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return e.Error()
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}
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func (e ValidationError) Code() ErrorCode {
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return ErrorCodeValidationError
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}
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func (e ValidationError) Unwrap() error {
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return e.Err
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}
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type MinLengthError struct {
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Min int
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}
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func (e MinLengthError) Error() string {
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return fmt.Sprintf("the length must be no less than %d", e.Min)
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}
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func (e MinLengthError) UserError() string {
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return e.Error()
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}
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func (e MinLengthError) Code() ErrorCode {
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return ErrorCodeValidationError
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}
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type MaxLengthError struct {
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Max int
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}
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func (e MaxLengthError) Error() string {
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return fmt.Sprintf("the length must be no more than %d", e.Max)
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}
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func (e MaxLengthError) UserError() string {
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return e.Error()
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}
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func (e MaxLengthError) Code() ErrorCode {
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return ErrorCodeValidationError
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}
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type MinError struct {
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Min int
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}
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func (e MinError) Error() string {
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return fmt.Sprintf("must be no less than %d", e.Min)
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}
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func (e MinError) UserError() string {
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return e.Error()
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}
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func (e MinError) Code() ErrorCode {
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return ErrorCodeValidationError
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}
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