django-piston：正确格式化客户端应用的POST数据

Question

我有一个Django应用，这次第一次使用django-piston。

我为一个模型配置了一个处理器，它可以处理GET和POST请求。

GET请求运行得很好，没问题。

但是POST请求就不太行了。当我向它发送数据时，出现了这个错误

Responded: Piston/0.2.3rc1 (Django 1.2.4) crash report:

Method signature does not match.

Resource does not expect any parameters.

Exception was: cannot concatenate 'str' and 'dict' objects

我对Python不是很专业，但简单搜索一下发现，这似乎是一个比较常见的Python类型错误（TypeError）。

下面是一些代码。

urls.py（相关部分）

auth = DjangoAuthentication()
ad = { 'authentication': auth }

word_handler = Resource(handler = WordHandler, **ad)

urlpatterns = patterns(
    url(r'^word/(?P<word_id>[^/]+)/', word_handler),
    url(r'^words/', word_handler),
)

handlers.py（相关部分）

class WordHandler(BaseHandler):
    allowed_methods = ('GET','POST',)
    model = Word

    fields = ('string', 'id', 'sort_order', ('owner', ('id',)),)

    def read(self, request, word_id = None):
        """
        Read code goes here
        """

    def create(self, request):

        if request.content_type:
            data = request.data

            print("Words Data: " + data)

            existing_words = Word.objects.filter(owner = request.user)

            for word in data['words']:

                word_already_exists = False

                for existing_word in existing_words:

                    if word["string"] == existing_word.string:
                        word_already_exists = True
                        break


                if not word_already_exists:
                    Word(string = word["string"], owner = request.user).save()

            return rc.CREATED

基本上，它根本没有进入create()这个函数，或者至少看起来是这样的。它就直接报错了，所以我甚至无法看到它是如何接收数据的。

顺便说一下，这是我尝试POST的数据

{"words":[{"owner":{"id":1,"tags":null,"password":null,"words":null,"email":null,"firstname":null,"lastname":null,"username":null},"id":1,"sort_order":0,"tags":null,"string":"Another Test"},{"owner":{"id":1,"tags":null,"password":null,"words":null,"email":null,"firstname":null,"lastname":null,"username":null},"id":2,"sort_order":0,"tags":null,"string":"Here's a test"},{"owner":null,"id":0,"sort_order":0,"tags":null,"string":"Tampa"}]}

任何信息都会非常有帮助。

django 类型错误 web开发 GET请求数据格式化 POST请求处理器 django-piston

django-piston：正确格式化客户端应用的POST数据

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