显示模型及其关系 [英] Display model and its relations
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问题描述
我的models.py如下:
My models.py is as follows:
from django.db import models
class Book(models.Model):
book_id=models.AutoField(primary_key=True,unique=True)
book_name=models.CharField(max_length=30)
author_name=models.CharField(max_length=30)
publisher_name=models.CharField(max_length=40)
def __unicode__(self):
return "%d %s %s %s" % (self.book_id,self.book_name, self.author_name,self.publisher_name)
class Author(models.Model):
author_id=models.AutoField(primary_key=True)
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=40)
email = models.EmailField()
age=models.IntegerField()
book=models.ForeignKey(Book)
def __unicode__(self):
return u'%d %s %s' % (self.author_id,self.first_name, self.last_name)
和我的views.py是这样的:
and my views.py is this:
def index(request):
books = Book.objects.all()
context={'books':books}
return render(request,'index.html', context)
以上views.py在Book类中显示内容,但我无法在作者表中显示内容。我的要求是显示合并在单个页面中的两个内容。请帮我做到这一点。
The above views.py displays contents in the Book class, but I am not able to display the contents in the author table. My requirement is to display both contents merged in a single page. Please help me do this.
推荐答案
models.py
class Book(models.Model):
book_name=models.CharField(max_length=30)
author_name=models.CharField(max_length=30)
publisher_name=models.CharField(max_length=40)
author=models.ForeignKey(Author)
def __unicode__(self):
..........
class Author(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=40)
email = models.EmailField()
age=models.IntegerField()
def __unicode__(self):
........
def books(self):
return Book.objects.filter(author=self)
views.py
def index(request):
authors = Author.objects.all()
context={'authors':authors}
return render(request,'index.html', context)
模板
{% for author in authors %}
Author: {{author.first_name}} {{author.last_name}}<br/>
Email: {{author.email}}
Age: {{author.age}}
Books:
{% for book in author.books %}
.......
{% endfor %}
{% endfor %}
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