Megafeed

A library for serializing complex django querysets

Example

To enable megafeed system wide in your Django application, edit your settings.py file and add to your MIDDLEWARE_CLASSES:

'utils.middleware.MegaMiddleware',

add megafeed to your installed apps, and add an entry to your urls.py:

(r'^feed', 'megafeed.views.mega_feed'),

Using the following model:

from django.db import models
from django.contrib.auth.models import User

class Blog(models.Model):
    DRAFT, PUBLISHED = range(2)
    BLOG_STATUS = ( 
        (DRAFT, 'Draft'),
        (PUBLISHED, 'Published')
        )   
    title   = models.CharField(max_length=64)
    slug    = models.SlugField()
    content = models.TextField()
    created = models.DateTimeField(auto_now=True)
    status  = models.IntegerField(choices=BLOG_STATUS)
    enable_comments = models.BooleanField(default=True)
    author = models.ForeignKey(User)

    def __unicode__(self): return self.title

    @models.permalink
    def get_absolute_url(self): 
        return ('view_blog_post', (), {
            'year': self.created.year,
            'month': self.created.month,
            'day': self.created.day,
            'slug': self.slug})

import megafeed
megafeed.register(Blog)

example megafeed url:

/feeds.json?blog={"title":"test","order":"-created"}@

json response:

{"response": {"blog": {"object_list": [{"blog":
{"status": 0, "author": {"id": 1}, "created": "2010-06-16 14:49:34", "title": "test", "id": 1, "content": "test", "enable_comments": true, "slug": "test"}}],
"type": "blog", "page_data": {"per_page": 10, "current_page": 1, "page_count": 1, "object_count": 1}, "filter_list": {"enable_comments": 1, "order": "-created", "title": "test"}}}}

Megafeed can also be accessed as megafeed.megafeed(Model) or Model.megafeed()

• For ease of inclusion in views, request.GET can be passed directly to as params to a megafeed and it will be appropriately modified with defaults.
• Model.megafeed also includes request_params which will only apply filters if they match the prefix value, e.g. blog_page=2

MegaFeed Tag

Continuing on from the [[MegaFeed Example]]

The example megafeed url:

/feeds.json?blog={"title":"test","order":"-created"}

becomes

{% load megafeed_tags %}
{% megafeed blog title "test" order "-created" as blogs %}

which can be used as

{% for blog in blogs.object_list %}
<a href="{{blog.get_absolute_url}}">{{blog.title}}</a>
{% endfor %}

Note that the blogs variable contains object_list, page_data, and filter_list as in the [[MegaFeed Example]] JSON.