您好我创建了我的第一个项目,如stackoverflow(问答)。我使用Tango和Django http://www.tangowithdjango.com/book17/chapters/ajax.html的这个guid来添加带有ajax的按钮。没有什么可恶的。在控制台中看不到任何请求。我是Django中的菜鸟,这是我第一次遇到jquery。
apps/questions/models:
class Answer(models.Model):
text = models.TextField()
date = models.DateTimeField(default=datetime.datetime.now)
likes = models.IntegerField(default=0)
resolve = models.IntegerField(default=0)
author = models.ForeignKey(CustomUser)
question = models.ForeignKey(Question)
apps/questions/views:
@login_required
def add_like(request):
ans_id = None
if request.method == 'GET':
ans_id = request.GET['answer_pk']
likes = 0
if ans_id:
ans = Answer.objects.get(id=(int(ans_id)))
if ans:
likes = ans.likes + 1
ans.likes = likes
ans.save()
return HttpResponse(likes)
apps/questions/ulrs:
url:
url(r'add_like/$', views.add_like, name='add_like'),
question.html:
{% for answer in answers %}
<div class="container-fluid no-padding">
{{ answer.text }}
</div>
<div class="container-fluid author-question">
<p>posted: {{ answer.date.day|stringformat:"02d" }}.{{ answer.date.month|stringformat:"02d"}}.{{ answer.date.year}}</p>
<p>by: {{ answer.author.username }}</p>
</div>
{% if user.is_authenticated %}
<button class="btn btn-default" type="button" id="likes" data-ansid="{{ answer.id }}">
like | <strong id="like_count">{{ answer.likes }}</strong>
</button>
{% endif %}
js/ajax.js:
$('#likes').click(function(){
var ansid;
ansid = $(this).attr("data-ansid");
$.get('/questions/add_like/', {answer_id: ansid}, function(data){
$('#like_count').html(data);
$('#likes').hide();
});
});
答案 0 :(得分:1)
由于您在for循环中创建按钮,并以相同的方式命名它们,因此页面上有多个具有相同ID的元素。因此,您会得到不可预测的结果。您应该为每个按钮指定自己的ID,或者更改jQuery选择器以根据相应的类选择按钮。
例如,您可以:
{% for answer in answers %}
<div class="container-fluid no-padding">
{{ answer.text }}
</div>
<div class="container-fluid author-question">
<p>posted: {{ answer.date.day|stringformat:"02d" }}.{{ answer.date.month|stringformat:"02d"}}.{{ answer.date.year}}</p>
<p>by: {{ answer.author.username }}</p>
</div>
{% if user.is_authenticated %}
<button class="btn btn-default likes-button" type="button" data-ansid="{{ answer.id }}">
like | <strong id="like_count">{{ answer.likes }}</strong>
</button>
{% endif %}
{% endfor %}
然后是javascript
$('.likes-button').click(function(){
var ansid;
ansid = $(this).attr("data-ansid");
$.get('/questions/add_like/', {answer_id: ansid}, function(data){
$('#like_count').html(data);
$('#likes').hide();
});
});