Django框架多表查询实例分析-创新互联

本文实例讲述了Django框架多表查询。分享给大家供大家参考，具体如下：

多表查询是模型层的重要功能之一, Django提供了一套基于关联字段独特的解决方案.

来自Django官方文档的模型示例:

from django.db import models
class Blog(models.Model):
  name = models.CharField(max_length=100)
  tagline = models.TextField()
class Author(models.Model):
  name = models.CharField(max_length=50)
  email = models.EmailField()
class Entry(models.Model):
  blog = models.ForeignKey(Blog)
  authors = models.ManyToManyField(Author)
  headline = models.CharField(max_length=255)
  body_text = models.TextField()
  pub_date = models.DateField()
  mod_date = models.DateField()
  n_comments = models.IntegerField()
  n_pingbacks = models.IntegerField()
  rating = models.IntegerField()