我自己的喜欢按钮：Django + Ajax-如何？

我举一个例子。您只需从中学习并进行相应的更改。

myapp.models.py （简化的公司模型）：

from django.db import modelsfrom django.contrib.auth.models import Userfrom django.template.defaultfilters import slugifyclass Company(models.Model):    name = models.CharField(max_length=255)    slug = models.SlugField()    likes = models.ManyToManyField(User, related_name='likes')    @property    def total_likes(self):        """        Likes for the company        :return: Integer: Likes for the company        """        return self.likes.count()    def save(self, *args, **kwargs):        self.slug = slugify(self.name)        super(Company, self).save(*args, **kwargs)

myapp.urls.py （视图的URL）：

url(r'^like/$', 'myapp.views.like', name='like'),

myapp.views.py （查看）：

from django.http import HttpResponsetry:    from django.utils import simplejson as jsonexcept importError:    import jsonfrom django.shortcuts import get_object_or_404from django.contrib.auth.decorators import login_requiredfrom django.views.decorators.http import require_POSTfrom myapp.models import Company@login_required@require_POSTdef like(request):    if request.method == 'POST':        user = request.user        slug = request.POST.get('slug', None)        company = get_object_or_404(Company, slug=slug)        if company.likes.filter(id=user.id).exists(): # user has already liked this company # remove like/user company.likes.remove(user) message = 'You disliked this'        else: # add a new like for a company company.likes.add(user) message = 'You liked this'    ctx = {'likes_count': company.total_likes, 'message': message}    # use mimetype instead of content_type if django < 5    return HttpResponse(json.dumps(ctx), content_type='application/json')

模板：

<input type="button" id="like" name="{{ company_slug }}" value="Like" /><script>$('#like').click(function(){      $.ajax({    type: "POST",    url: "{% url 'like' %}",    data: {'slug': $(this).attr('name'), 'csrfmiddlewaretoken': '{{ csrf_token }}'},    dataType: "json",    success: function(response) {alert(response.message);alert('Company likes count is now ' + response.likes_count);     },     error: function(rs, e) { alert(rs.responseText);     }          });     })</script>

在模板中使用url标签的一些说明：

• 如果在这样的URL名称周围

  Django < 1.3

  使用

  url

  不带引号的标签

  {% url like %}

• 如果是

  Django > 1.3 and < 1.5

  这样，您应该添加

  {% load url from future %} at top level of your template and enclosed your URL name with quotes as I have done in my answer

• 如果是，

  Django >= 1.5

  则只需删除

  {% load url from future %}

  并用引号括起来的URL名称

  {% load url from future %}

  标记为已弃用，并将在以下位置删除

  Django 1.9