Ajax POST調用具有多個數據的Django視圖[響應500]

Question

將django-secretballot與我的名為“ flavor”的應用集成后，這500個狀態錯誤不是CSRFtoken問題。 FireBug的“網絡”選項卡顯示

POST：

content_type    flavor.Flavor
object_id   5
vote    1
Source
content_type=flavor.Flavor&object_id=5&vote=1

響應：

TypeError at /flavor/vote/
vote() missing 3 required positional arguments: 'content_type', 'object_id', and 'vote'

您能在下面的我的flavor_vote.js中發現任何錯誤嗎？ 為什么不能將這3個必需的位置參數傳遞給vote（）函數？

$(document).ready(function() {

  var csrftoken = getCookie('csrftoken');

  $.ajaxSetup({
      beforeSend: function(xhr, settings) {
          if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
              xhr.setRequestHeader("X-CSRFToken", csrftoken);
          }
      },
      error: function(xhr, textStatus, error) {
          console.log(error);
      }
  });

  $(".vote").click(function () {
    var div = $(this);
    var obj_id = $(this).closest('.flavor').attr('flavor-id');
    var vote = 1;
    if ($(this).hasClass('voted')) {
        var vote = 0;
    }

   console.log(div);
    $.ajax({
        url: '/flavor/vote/',
        method: 'post',
        data: {
            'content_type': 'flavor.flavor',
            'object_id': obj_id,
            'vote': vote
        },
        success: function (data) {
            alert('Successfully called');
            $(div).toggleClass('btn-success voted');
            console.log(data);
        },
        error: function(data) {
            console.log(data);
        }
    });
  });
});

function getCookie(name) {
    var cookieValue = null;
    if (document.cookie && document.cookie != '') {
        var cookies = document.cookie.split(';');
        for (var i = 0; i < cookies.length; i++) {
            var cookie = jQuery.trim(cookies[i]);
            // Does this cookie string begin with the name we want?
            if (cookie.substring(0, name.length + 1) == (name + '=')) {
                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                break;
            }
        }
    }
    return cookieValue;
}

function csrfSafeMethod(method) {
    // these HTTP methods do not require CSRF protection
    return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
}

========其他相關信息================

我的models.py具有Flavor類，可以對其進行投票

secretballot.enable_voting_on(Story) 

我的Ajax調用需要在https://github.com/jamesturk/django-secretballot/blob/master/secretballot/views.py的 views.py中將參數傳遞給vote()函數。

def vote(request, content_type, object_id, vote, can_vote_test=None,
         redirect_url=None, template_name=None, template_loader=loader,
         extra_context=None, context_processors=None, mimetype=None):

urls.py有

url(r'^flavor/vote/$', 'secretballot.views.vote', name='flavor_vote'),

django模板flavor_detail.html

<div class="caption flavor" flavor-id="{{ flavor.id }}">
    <div class="btn btn-default vote">
       <span class="glyphicon glyphicon-thumbs-up"></span>
       Vote
    </div>
</div>

Answer 1

您的vote功能應僅接受一個參數，即request ：

def vote(request):

通過AJAX傳遞給視圖的變量將出現在request.POST字典中。 它們不會作為args或kwargs傳遞給view函數。

def vote(request):
    content_type = request.POST['content_type']
    vote = request.POST['vote']
    object_id = request.POST['object_id']
    ...

Answer 2

有兩件事需要改變...

第一

在urls.py中添加對位置參數的支持

url(r'^flavor/vote/(?P<content_type>)/(?P<object_id>)/(?P<vote>)', 'secretballot.views.vote', name='flavor_vote'),

第二

像這樣更改您的ajax請求。

type = "some type"; // fetch it somehow.
$.ajax({
        url: '/flavor/vote/'+type+'/'+obj_id+'/'+ vote,
        method: 'post',
        data: { //not needed now as the url contains it.
            'content_type': 'flavor.flavor',
            'object_id': obj_id,
            'vote': vote
        },
        success: function (data) {
            alert('Successfully called');
            $(div).toggleClass('btn-success voted');
            console.log(data);
        },
        error: function(data) {
            console.log(data);
        }
    });