Django从另一个模型获取模型 [英] Django getting a model from another model

问题描述

我有两个模型，一个作者和一个文章.每篇文章都需要引用其作者，以便我可以在模板中访问其值.最有效的方法是什么?

I have two models, a Author and a Article. Each Article is needs to refer back to its Author so I can access its values in my template. What is the most efficient way of doing this?

class Author(models.Model):
    name = models.CharField(max_length=256)
    picture = models.CharField(max_length=256)

class Article(models.Model):
    title = models.CharField(max_length=256)
    author = #The Author model that wrote this article
    date = models.DateTimeField(default=datetime.now)
    body = models.TextField()

推荐答案

您需要使用Foreign Key概念.以下是其实现:

You need to use the Foreign Key concept for it. The following is its implementation:

class Author(models.Model):
    name = models.CharField(max_length=256)
    picture = models.CharField(max_length=256)

class Article(models.Model):
    title = models.CharField(max_length=256)
    author = models.ForeignKey(Author)
    date = models.DateTimeField(default=datetime.now)
    body = models.TextField()

保存时，您需要在views.py中执行以下操作:

While saving it, you need to do the following in your views.py:

if form.is_valid():
    author = Author.objects.get(name="author name")
    form.save(author=author)

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