Hilfe mit Rekursion und Structs

gistfile1.go

package main

import (
	"fmt"
	"strconv"
)

type Entry struct {
	id    int
	title string

	parent   *Entry
	children EntryList
}

type EntryList []Entry

func (entryList *EntryList) addEntry(id, parent_id int, title string) (newEntry *Entry, err error) {
	if parent_id == 0 {
		fmt.Println("add entry in level 0", entryList, id, parent_id, title)
		newEntry = &Entry{id, title + "-" + strconv.Itoa(id), nil, EntryList{}}
		*entryList = append(*entryList, *newEntry)
		fmt.Println(entryList)
	} else {
		for _, entry := range *entryList {
			if entry.id == parent_id {
				fmt.Println(entry, id, parent_id)
				newEntry, err = entry.children.addEntry(id, 0, title)
				fmt.Println(newEntry)
				newEntry.parent = &entry
			}
		}
	}
	return
}

func main() {
	var list EntryList

	// create list of entries
	for i := 1; i <= 10; i++ {
		list.addEntry(i, 0, "entry")
	}

	// create some children
	for i := 1; i <= 10; i++ {
		list.addEntry(i, 1, "child")
	}

	for _, entry := range list {
		fmt.Println(entry)
	}
}