python - Django - 如何显示下拉值而不是对象？

Question

似乎我无法获得下拉值而不是对象。

表单.html

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

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

模型.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)

View .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})

Answer 1

您应该在对象的模型中实现 __str__(如果是 Python 2，则为 __unicode__)。

来自 Django 的 docs :

Django uses str(obj) in a number of places. Most notably, to display an object in the Django admin site and as the value inserted into a template when it displays an object. Thus, you should always return a nice, human-readable representation of the model from the str() method.