包括在Django Tastypie API子资源

我打算使用Django和Tastypie一个网站的REST API，和我有一个艰难的时间搞清楚了“正确”的方式包括在返回的资源子资源。

作为一个沙箱中，我做了一个小的应用程序了票务模型和TicketComment模型，其中的意见属于一票。我看着嵌套资源（http://django-
tastypie.readthedocs.org/en/latest/cookbook.html#nested-
resources）的Tastypie食谱配方，但我有一个很难理解为什么我应该做的。以下用途django.forms.models.model_to_Dict（）的代码，以获得注释到票，但我想必须有一个“疑难杂症”这里的某个地方。

是否有一个原因，@R_673_9190@我现在正在做什么？此外，有没有这种更清洁，感觉比模式什么的食谱上市？

型号如下：

# tickets/models.py

from django.db import models

class Ticket(models.Model):
    title = models.CharField(max_length=200)
    create_ts = models.datetiR_243_11845@eField(auto_now_add=TruE)
    submitter_email = models.EmailField()
    PRIORITY_CHOICES = (
        ('H','High'),('M','Medium'),('L','Low'),)
    priority = models.CharField(max_length=1,choices=PRIORITY_CHOICES)
    description = models.TextField()
    STATUS_CHOICES = (
        ('NEW','New & Unclaimed'),('WIP','Work In Progress'),('RES','Resolved'),('CLS','Closed'),)
    status = models.CharField(max_length=3,choices=STATUS_CHOICES)

    def __unicode__(self):
        return "<Ticket:%d:%s>" % (self.id,self.title,)

class TicketComment(models.Model):
    ticket = models.ForeignKey(Ticket)
    comment_ts = models.datetiR_243_11845@eField(auto_now_add=TruE)
    commenter_email = models.EmailField()
    comment = models.TextField()

    def __unicode__(self):
        return "<TicketComment:%d:%d>" % (self.ticket.id,self.id,)

资源如下：

# tickets/api.py

from tastypie import fields
from tastypie.resources import Modelresource
from tickets.models import Ticket,TicketComment
from django.forms.models import model_to_Dict

class Ticketresource(ModelresourcE):

    class Meta:
        queryset = Ticket.objects.all()
        resource_name = 'ticket'

    def dehydrate(self,bundlE):
        comments = TicketComment.objects.filter(ticket=bundle.data['id'])
        bundle.data['comments'] = [model_to_Dict(C) for c in comments]
        return bundle

class TicketCommentresource(ModelresourcE):
    ticket = fields.ForeignKey(Ticketresource,'ticket')

    class Meta:
        queryset = TicketComment.objects.all()
        resource_name = 'comment'

输出如下：

{
   comments: [
        {
            comment: "This is the first comment.",commenter_email: "me@example.com",id: 1,ticket: 1
        },{
            comment: "This is the second comment.",id: 2,ticket: 1
        }
    ],create_ts: "2011-10-17T15:55:11.372000",description: "This is the first ticket.",id: "1",priority: "M",resource_uri: "/api/v1/ticket/1/",status: "NEW",submitter_email: "me@example.com",title: "First Ticket"
}