Object Not Iterable

Question

我有一个奇怪的问题......此代码工作正常，直到我工作了一些其他视图，现在，它不工作。

这是我的观点：

def showTickets(request, project_slug): 
    project = Project.objects.get(slug=project_slug) 
    tickets = Ticket.objects.get(project=project) 
    payload = { 'project':project, 'tickets':tickets} 
    return render(request, 'project/tickets.html', payload) 

模板：

{% extends 'project/base.html' %} 

{% block title %}Tickets: {{project.name}}{% endblock %} 

{% block main %} 

<div id="project-nav"> 
    <span><a href="/project/{{project.slug}}/">Tickets</a></span> 
    <span><a href="/book/{{book.slug}}{{book.name}}">Docs</a></span> 
    <span><a href="/project/{{project.slug}}/browse">Browser</a></span> 
</div> 
<div id="action-nav"> 
    {% block actions %} 
    <span><a href="/project/{{project.slug}}/tickets/create">Create Ticket</a></span> 
    <span><a href="/project/{{ project.slug }}/tickets/recent/">Recent Activity</a></span> 
    <span><a href="/project/{{ project.slug }}/tickets/my/">My Tickets</a></span> 
    {% endblock %} 
</div> 
{% for ticket in tickets %} 


<div class="ticket"> 
    <div class="ticket-header"> 
     <div class="ticket-title"> 
      <a href="/project/ticket/{{ticket.pk}}">{{ticket.subject}}</a> 
     </div> 
     <div id="ticket-number"> 
      #{{ticket.pk}} 
     </div> 
     <div id="ticket-state"> 
      {{ticket.get_state_display}} 
     </div> 
     <div id="ticket-info"> 
      Reported by {{ticket.created_by}} | created: {{ticket.created_on }} | modified: {{ticket.modified_on}} 
     </div> 
    </div> 
</div> 
{% endfor %} 
</div> 

{% endblock %} 

错误：

Template error: 
In template c:........\project\tickets.html, error at line 19 
    Caught TypeError while rendering: 'Ticket' object is not iterable 

这是工作的罚款，直到我曾在其他一些意见...不知道为什么现在不工作？如果有人能帮助我会很感激！

Answer 1

project = Project.objects.get(slug=project_slug) 
tickets = Ticket.objects.get(project=project) 

这两行是你的烦恼的原因。他们没有返回一个可迭代的，比如一个列表，而是一个根本不可迭代的对象。取而代之的是使用一个过滤器，它将返回一个列表。

Answer 2

get()方法返回单个对象。也许你打算使用filter()方法呢？