python - Django Entry_Set 定义

Question

我不明白《实用 Django 项目》第 87 页上的以下代码:

从 django.views.generic.list_detail 导入 o​​bject_list

def category_detail(request, slug):
    category = get_object_or_404(Category, slug=slug)
    return object_list(request, queryset=category.entry_set.all(),
                       extra_context={ 'category': category }))

entry_set 从哪里来？它在哪里定义的？谢谢。

Answer 1

这是created by the Entry model .

If a model has a ForeignKey, instances of the foreign-key model will have access to a Manager that returns all instances of the first model. By default, this Manager is named FOO_set, where FOO is the source model name, lowercased.