带有Django视图和外国基础的基本逻辑

Question

我是django的新手，正在努力解决基本问题，但找不到在线解决方案。

我有这些模型：

class Suggestion(models.Model):
    author = models.ForeignKey('auth.User')
    title = models.CharField(max_length=200)
    description = models.TextField()
    created_date = models.DateTimeField(default=timezone.now)
    def __str__(self):
        return self.title

class Vote(models.Model):
    suggestion = models.ForeignKey(Suggestion)
    voter = models.ForeignKey('auth.User')
    vote_count = models.IntegerField(default=1)

我正在尝试创建一个将Vote添加到给定Suggestion的视图，从而捕获投票的用户。我已经看到有些人似乎是通过表格或常规功能来完成的，所以不确定这里的最佳做法是什么？

编辑

这是我的尝试（不起作用）。任何帮助/建议都赞赏。

#forms.py
class VoteForm(forms.ModelForm):
    class Meta:
        model = Vote
        fields = ()
#models.py
class Vote(models.Model):
    suggestion = models.ForeignKey(Suggestion)
    voter = models.ForeignKey('auth.User')
    vote_count = models.BooleanField()
#views.py
def add_vote(request, pk):
    if request.method == 'POST':
        form = VoteForm(request.POST)
        suggestion = get_object_or_404(Suggestion, pk=pk)
        if form.is_valid():
            vote = form.save(commit=False)
            vote.voter = request.user
            vote.vote_count = True
            vote.save()
            return render(request, 'suggestion/suggestion_detail.html', {'suggestion': suggestion})
#vote_form.html
<form method="post">
    {% csrf_token %}
    {{ form }}
    <button type="submit">Vote</button>
</form>

Answer 1

您应该为投票创建表单，并将其包含在建议视图中。表格可以具有自己的html -vote_form.html。然后将其包含在

的建议HTML页面上

{% include '[name of directory]/vote_form.html' %}

至于投票数，除非您希望用户投票多票，否则它不应是整数字段。如果您只希望某人能够每个建议投票一次，则应该使投票_COUNT为布尔字段（是还是错误）。然后，您可以将真实的投票分配给非投票。

Answer 2

我设法以这种方式做了我想要的事情：

    #vote_form.html
    <form action="{% url 'add_vote' suggestion.id %}" method="post">
        {% csrf_token %}
        <input type="submit" value="I want to vote">
    </form>
    #urls.py
    urlpatterns = [
        url(r'^suggestion/(?P<pk>d+)/$', views.SuggestionDetail.as_view(), name="suggestion_detail"),
        url(r'^suggestion/(?P<pk>d+)/vote/$', views.add_vote, name='add_vote'),
    ]  
    #models.py
    class Vote(models.Model):
        suggestion = models.ForeignKey(Suggestion)
        voter = models.ForeignKey('auth.User')
        vote_count = models.BooleanField()
    #views.py
    def add_vote(request, pk):
        suggestion = get_object_or_404(Suggestion, pk=pk)
        vote = Vote(
            suggestion = suggestion,
            voter = request.user,
            vote_count = True)
        has_user_voted = Vote.objects.filter(voter=request.user, suggestion=suggestion).count()
        if has_user_voted < 1:
            vote.save()
        else:
            messages.error(request, 'It seems you have already voted, only one vote is allowed')
        return HttpResponseRedirect(reverse('suggestion_detail', args=(suggestion.id,)))