django_form.py

from django import forms
from django.db import models

class Menu(models.Model):
    header = models.CharField(max_length=64)
    price = models.DecimalField(null=True, max_digits=6, decimal_places=2)
    parent = models.ForeignKey('Menu', null=True) 

class MenuForm(forms.ModelForm):
    class Meta:
        model = Menu
    

'''
INSERT INTO menus_menu(id, header) VALUES (1, 'dinner');
INSERT INTO menus_menu(id, header, parent_id) VALUES (2, 'appetizer', 1);
INSERT INTO menus_menu(id, header, price, parent_id) VALUES (3, 'soup', 5.00, 2);
INSERT INTO menus_menu(id, header, price, parent_id) VALUES (4, 'spring roll', 2.00, 2);
INSERT INTO menus_menu(id, header, parent_id) VALUES (5, 'entree', 1);
INSERT INTO menus_menu(id, header, price, parent_id) VALUES (6, 'steak', 10.00, 5);
INSERT INTO menus_menu(id, header, parent_id) VALUES (7, 'vegetarian', 5);
INSERT INTO menus_menu(id, header, price, parent_id) VALUES (8, 'veggie burger', 9.00, 7);


hierarchy of menu 1:

    dinner
        appetizer
            soup $5.00
            spring roll $2.00
        entree
            steak $10.00
            vegetarian
                veggie burger 9.00

    <input type="text" name="header[0]"                                     value="dinner">
    <input type="text" name="header[0].header[0]"                           value="appetizer">
    <input type="text" name="header[0].header[0].item[0]"                   value="soup">
    <input type="text" name="header[0].header[0].item[0].price"             value="$5.00">
    <input type="text" name="header[0].header[0].item[1]"                   value="spring roll">
    <input type="text" name="header[0].header[0].item[1].price"             value="$2.00">
    <input type="text" name="header[0].header[1]"                           value="entree">
    <input type="text" name="header[0].header[1].item[0]"                   value="steak">
    <input type="text" name="header[0].header[1].item[0].price"             value="$10.00">
    <input type="text" name="header[0].header[1].header[0]"                 value="vegetarian">
    <input type="text" name="header[0].header[1].header[0].item[0]"         value="veggie burger">
    <input type="text" name="header[0].header[1].header[0].item[0].price"   value="$9.00">


'''