在Django模板中显示外键值

Question

这是我的问题.我是python/django的新手(约2个月).我有2个表,项目和状态.我有一个从状态指向项目的外键,我希望尝试在项目模板上显示外键(status)的值,​​而不是外键的地址.

这是我的models.py

from django.db import models
from clients.models import Clients
from django.contrib.auth.models import User
from settings import STATUS_CHOICES

from django.db import models
from clients.models import Clients
from django.contrib.auth.models import User
from settings import STATUS_CHOICES

class Project(models.Model):
   client = models.ForeignKey(Clients, related_name='projects')
   created_by = models.ForeignKey(User, related_name='created_by')


#general information
   proj_name = models.CharField(max_length=255, verbose_name='Project Name')
   pre_quote = models.CharField(max_length=3,default='10-')
   quote = models.IntegerField(max_length=10, verbose_name='Quote #', unique=True)
   desc = models.TextField(verbose_name='Description')
   starts_on = models.DateField(verbose_name='Start Date')
   completed_on = models.DateField(verbose_name='Finished On')

   def __unicode__(self):
      return u'%s' % (self.proj_name)   


class Status(models.Model):
  project = models.ForeignKey(Project, related_name='status')
  value = models.CharField(max_length=20, choices=STATUS_CHOICES,                     verbose_name='Status')
  date_created= models.DateTimeField(auto_now=True) 

  def __unicode__(self):
     return self.value

  class Meta:
      verbose_name = ('Status')
      verbose_name_plural = ("Status")

我的views.py

@login_required
 def addProject(request):
 if request.method == 'POST':
      form = AddSingleProjectForm(request.POST)
      if form.is_valid():
        project = form.save(commit=False)
        project.created_by = request.user  
        project.save()
        project.status.create(
                value = form.cleaned_data.get('status', None)
        )            
        return HttpResponseRedirect('/project/')
 else:
    form = AddSingleProjectForm()

 return render_to_response('project/addProject.html', {
 'form': form, 'user':request.user}, context_instance=RequestContext(request))

最后我的模板:

{% if project_list %}
<table id="plist">
    <tr id="plist">
        <th>Quote #</th>
        <th>Customer</th>
        <th>Date</th>
        <th>Project Name</th>
        <th>Status</th>
        <th>Contact</th>
    </tr id="plist">
    {% for p in project_list %}
    <tr id="plist">
        <td><a href="/project/{{ p.id }}/view">{{ p.pre_quote }}{{ p.quote }}</a></td>
        <td>{{ p.client }}</td>
        <td>{{ p.starts_on }}</td>
        <td>{{ p.proj_name }}</td>
        <td>{{ p.status_set.select_related }}</td>
    <td>{{ p.created_by }}</td>
    </tr>
     {% endfor %}
    </table>

{% else %}
    <p>No projects available.</p>
{% endif %}

任何帮助将非常感激.谢谢!

Answer 1

我猜你的意思是:

<td>{{ p.status_set.select_related }}</td>

这没有任何作用.select_related是一种优化功能,它与实际获取或显示相关内容无关.如果你想这样做,你将不得不迭代结果p.status_set.all.