Django页面＆amp;显示为对象的类别名称

Question

此代码将页面和类别名称显示为对象，而不是各自的标题。它应该显示名称及其显示页面对象和类别对象，而不是所有标题

import os
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')

import django
django.setup()

from rango.models import Category, Page


def populate():
    python_cat = add_cat('Python')

    add_page(cat=python_cat,
        title="Official Python Tutorial",
        url="http://docs.python.org/2/tutorial/")

    add_page(cat=python_cat,
        title="How to Think like a Computer Scientist",
        url="http://www.greenteapress.com/thinkpython/")

    add_page(cat=python_cat,
        title="Learn Python in 10 Minutes",
        url="http://www.korokithakis.net/tutorials/python/")

    django_cat = add_cat("Django")

    add_page(cat=django_cat,
        title="Official Django Tutorial",
        url="https://docs.djangoproject.com/en/1.5/intro/tutorial01/")

    add_page(cat=django_cat,
        title="Django Rocks",
        url="http://www.djangorocks.com/")

    add_page(cat=django_cat,
        title="How to Tango with Django",
        url="http://www.tangowithdjango.com/")

    frame_cat = add_cat("Other Frameworks")

    add_page(cat=frame_cat,
        title="Bottle",
        url="http://bottlepy.org/docs/dev/")

    add_page(cat=frame_cat,
        title="Flask",
        url="http://flask.pocoo.org")

    # Print out what we have added to the user.
    for c in Category.objects.all():
        for p in Page.objects.filter(category=c):
            print ("- {0} - {1}".format(str(c), str(p)))

def add_page(cat, title, url, views=0):
    p = Page.objects.get_or_create(category=cat, title=title, url=url, views=views)[0]
    return p

def add_cat(name):
    c = Category.objects.get_or_create(name=name)[0]
    return c

# Start execution here!
if __name__ == '__main__':
    print ("Starting Rango population script...")
    populate()

代码有什么问题，或者错误是另一个文件？使用python 3.4和django 1.7。我错过了一个档案吗？我应该分享另一个文件吗？

Answer 1

通过探戈与django一起学习时遇到了同样的问题。我错过了Page。

中rango / modules.py中的方法

def str （self）：＃对于Python 2，也使用 unicode     return self.title

Answer 2

__unicode__(self)似乎正在为Python-3创建问题。将其替换为__str(self)__，它应该有效。

from django.db import models

class Category(models.Model):
    name = models.CharField(max_length=128, unique=True)
    def __str__(self):
        return self.name

class Page(models.Model):
    category =  models.ForeignKey(Category)
    title = models.CharField(max_length = 128)
    url = models.URLField()
    views = models.IntegerField(default=0)
    def __str__(self):
        return self.title