Function Format

dsl/validation.go:149–163

Format adds a "format" validation to the attribute. See http://json-schema.org/latest/json-schema-validation.html#anchor104. The formats supported by goa are: FormatDate: RFC3339 date FormatDateTime: RFC3339 date time FormatUUID: RFC4122 uuid FormatEmail: RFC5322 email address FormatHostname: R

(f expr.ValidationFormat)

//	    Format(FormatDateTime)
//	})
func Format(f expr.ValidationFormat) {
	if a, ok := eval.Current().(*expr.AttributeExpr); ok {
		if !a.IsSupportedValidationFormat(f) {
			eval.ReportError("invalid validation format %q", f)
		}
		if a.Type != nil && a.Type.Kind() != expr.StringKind {
			incompatibleAttributeType("format", a.Type.Name(), "a string")
		} else {
			if a.Validation == nil {
				a.Validation = &expr.ValidationExpr{}
			}
			a.Validation.Format = f
		}
	}
}

// Pattern adds a "pattern" validation to the attribute.
// See http://json-schema.org/latest/json-schema-validation.html#anchor33.