func ExampleGetFieldKind() {
s := MyStruct{
FirstField: "first value",
SecondField: 2,
ThirdField: "third value",
}
var firstFieldKind reflect.Kind
var secondFieldKind reflect.Kind
var err error
// GetFieldKind will return reflect.String
firstFieldKind, err = reflections.GetFieldKind(s, "FirstField")
if err != nil {
log.Fatal(err)
}
fmt.Println(firstFieldKind)
// GetFieldKind will return reflect.Int
secondFieldKind, err = reflections.GetFieldKind(s, "SecondField")
if err != nil {
log.Fatal(err)
}
fmt.Println(secondFieldKind)
}
// this function is for parsing single variables
func printField(container interface{}, field string) error {
logger.Debugf("Inspecting field =>\t\t%s\n", field)
var line string
// We allow fields to be passed using dot syntax, but
// we have to make sure all fields are Camelized
lineSplit := strings.Split(field, ".")
for n, f := range lineSplit {
lineSplit[n] = camelize(f)
}
FieldCamel := strings.Join(lineSplit, ".")
f, _ := reflections.GetFieldKind(container, FieldCamel)
switch f.String() {
case "ptr":
// we don't recurse into to gain a bit more control... this function will be rarely used and doesn't have to be perfectly parseable.
case "map":
line = fmt.Sprintf("{{ range $key, $val := .%v }}{{ $key }}->{{ $val }}\n{{ end }}\n", FieldCamel)
case "slice":
line = fmt.Sprintf("{{ range .%v }}{{ . }}\n{{ end }}\n", FieldCamel)
default:
line = fmt.Sprintf("{{.%v}}\n", FieldCamel)
}
return writeTemplate(container, line)
}
// this function is more verbose and used when inspect is
// set to all
func printReport(container interface{}, field string) error {
var line string
FieldCamel := camelize(field)
f, _ := reflections.GetFieldKind(container, FieldCamel)
switch f.String() {
case "ptr":
// we don't recurse into to gain a bit more control... this function will be rarely used and doesn't have to be perfectly parseable.
case "map":
line = fmt.Sprintf("%-20s\n{{ range $key, $val := .%v }}%20v{{ $key }}->{{ $val }}\n{{ end }}", FieldCamel+":", FieldCamel, "")
case "slice":
line = fmt.Sprintf("%-20s\n{{ range .%v }}%20v{{ . }}\n{{ end }}", FieldCamel+":", FieldCamel, "")
default:
line = fmt.Sprintf("%-20s{{.%v}}\n", FieldCamel+":", FieldCamel)
}
return writeTemplate(container, line)
}