Django snippets

# models.py

from django.db import models

class Menu(models.Model):
    name = models.CharField(max_length = 100)
    
    def __unicode__(self):
        return self.name

class Item(models.Model):
    menu = models.ForeignKey(Menu)
    name = models.CharField(max_length = 100)
    url = models.CharField(max_length = 100)
    order = models.IntegerField(blank = True, null = True)
    
    def __unicode__(self):
        return self.name
    
    class Meta:
        ordering = ('order',)

# admin.py

from django.contrib import admin
from django import forms

from models import Menu, Item

class MenuForm(forms.ModelForm):
    model = Menu
    class Media:
        js = (
            '/static/js/jquery-latest.js',
            '/static/js/ui.base.js',
            '/static/js/ui.sortable.js',
            '/static/js/menu-sort.js',
        )

class ItemInline(admin.StackedInline):
    model = Item

admin.site.register(Menu,
    inlines = [ItemInline],
    form = MenuForm,
)

"""
/* menu-sort.js */

jQuery(function($) {
    $('div.inline-group').sortable({
        /*containment: 'parent',
        zindex: 10, */
        items: 'div.inline-related',
        handle: 'h3:first',
        update: function() {
            $(this).find('div.inline-related').each(function(i) {
                if ($(this).find('input[id$=name]').val()) {
                    $(this).find('input[id$=order]').val(i+1);
                }
            });
        }
    });
    $('div.inline-related h3').css('cursor', 'move');
    $('div.inline-related').find('input[id$=order]').parent('div').hide();
});
"""