33 lines
461 B
Go
Executable File
33 lines
461 B
Go
Executable File
package dao
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import (
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"fmt"
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)
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type Type int
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const (
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ErrTypeNotFound Type = iota
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ErrTypeDuplicate
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ErrTypeForeignKeyViolation
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)
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type DAOError struct {
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Cause error
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Type Type
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}
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func NewDAOError(t Type, cause error) error {
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return &DAOError{
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Type: t,
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Cause: cause,
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}
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}
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func (e *DAOError) Error() string {
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if e.Cause != nil {
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return fmt.Sprintf("Type %d: %s", e.Type, e.Cause.Error())
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}
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return fmt.Sprintf("Type %d: no cause given", e.Type)
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}
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