Django - 如何显示下拉值而不是对象？

Question

看来我不能得到下拉值而不是对象。

form.html

{% extends "base.html" %} 
{% load i18n %} 

{% block content %} 
<form method="post">{% csrf_token %} 
    {{ form.as_p }} 
    <input type="submit" value="Submit" /> 
</form> 
{% endblock %} 

models.py

class FacebookAccount(models.Model): 
    user = models.ForeignKey(User) 
    account_description = models.CharField(max_length=50) 
    facebook_application_id = models.CharField(max_length=50) 
    facebook_application_secret = models.CharField(max_length=50) 
    ouath_token = models.CharField(max_length=50) 

class FacebookFanPage(models.Model): 
    facebook_account = models.ForeignKey(FacebookAccount) 
    fan_page_description = models.CharField(max_length=50) 
    fan_page_id = models.CharField(max_length=30) 

class PredefinedMessage(models.Model): 
    user = models.ForeignKey(User) 
    list_name = models.CharField(max_length=50) 
    list_description = models.CharField(max_length=50) 

class Campaign(models.Model): 
    user = models.ForeignKey(User) 
    campaign_name = models.CharField(max_length=50) 
    autoresponder_type = (
     ('Send replies to inbox messages','Send replies to inbox messages'), 
     ('Post replies to users comments','Post replies to users comments'), 
    ) 
    facebook_account_to_use = models.ForeignKey(FacebookAccount) 
    set_auto_reply_for_fan_page = models.ForeignKey(FacebookFanPage) 
    message_list_to_use = models.ForeignKey(PredefinedMessage) 
    reply_only_for_this_keyword = models.CharField(max_length=50) 

views.py

class AutoresponderForm(ModelForm): 
    class Meta: 
     model = Campaign 
     fields = ['campaign_name','facebook_account_to_use','set_auto_reply_for_fan_page','message_list_to_use','reply_only_for_this_keyword'] 
     exclude = ('user',) 

def autoresponder_create(request, template_name='form.html'): 
    form = AutoresponderForm(request.POST or None) 
    if form.is_valid(): 
     form = form.save(commit=False) 
     form.user = request.user 
     form.save() 
     return redirect('autoresponder_list') 
    return render(request, template_name, {'form':form}) 

请指点。谢谢。

Answer 1

您应该在对象的模型中实现__str__（或者如果Python 2为__unicode__）。

从Django的docs：

Django使用在许多地方STR（OBJ）。最值得注意的是，在Django管理站点中显示对象，并在显示对象时将其作为插入到模板中的值。因此，你应该总是从str（）方法中返回一个漂亮的，人类可读的模型表示。

Answer 2

更新您的models.py这样的：

class Campaign(models.Model): 
    user = models.ForeignKey(User) 
    campaign_name = models.CharField(max_length=50) 
    autoresponder_type = (
     ('Send replies to inbox messages','Send replies to inbox 
     messages'), 
     ('Post replies to users comments','Post replies to users comments'), 
    ) 
    facebook_account_to_use = models.ForeignKey(FacebookAccount) 
    set_auto_reply_for_fan_page = models.ForeignKey(FacebookFanPage) 
    message_list_to_use = models.ForeignKey(PredefinedMessage) 
    reply_only_for_this_keyword = models.CharField(max_length=50) 

    def __unicode__(self): 
    return self.campaign_name # or you can use any string value instead of campaign_name