66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
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package validation
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import "strings"
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// FieldError represents a single field validation error
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type FieldError struct {
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Field string `json:"field"` // Field name
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Tag string `json:"tag"` // Validation tag that failed
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Param string `json:"param,omitempty"` // Optional parameter (e.g., "100" for "max=100")
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Message string `json:"message"` // Human-readable error message
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}
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// Error implements the error interface
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func (e FieldError) Error() string {
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if e.Param != "" {
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return e.Field + ": " + e.Message + " (" + e.Tag + "=" + e.Param + ")"
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}
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return e.Field + ": " + e.Message
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}
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// ValidationErrors represents multiple field validation errors
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type ValidationErrors []FieldError
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// Error implements the error interface
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func (ve ValidationErrors) Error() string {
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if len(ve) == 0 {
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return ""
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}
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var sb strings.Builder
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sb.WriteString("validation failed: ")
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for i, err := range ve {
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if i > 0 {
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sb.WriteString(", ")
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}
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sb.WriteString(err.Error())
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}
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return sb.String()
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}
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// HasErrors returns true if there are any validation errors
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func (ve ValidationErrors) HasErrors() bool {
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return len(ve) > 0
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}
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// GetFieldError returns the first error for a specific field, or nil if none
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func (ve ValidationErrors) GetFieldError(field string) *FieldError {
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for _, err := range ve {
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if err.Field == field {
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return &err
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}
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}
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return nil
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}
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// GetFieldErrors returns all errors for a specific field
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func (ve ValidationErrors) GetFieldErrors(field string) []FieldError {
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var errors []FieldError
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for _, err := range ve {
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if err.Field == field {
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errors = append(errors, err)
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}
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}
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return errors
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}
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