Django系列：TemplateView，ListView，DetailView

类视图

View
- 核心
- dispatch
TemplateView
- 多继承的子类
- View
  - 分发
  - 函数 dispatch
- ContextMixin
  - 接收上下文
  - 从视图函数传递到模板的内容
  - 函数 get_context_data
- TemplateResponseMixin
  - 将内容渲染到模板中
  - template_name
  - template_engine
  - response_class
  - content_type
  - 函数 render_to_response
ListView
- MultipleObjectTemplateResponseMixin
  - TemplateResponseMixin
  - 获取模板名字
    - 首先根据template_name
    - 如果没找到
      - 自己根据应用的名字，关联模型的名字， _list.html 去查找
      - App/book_list.html
- BaseListView
  - MultipleObjectMixin
    - ContextMixin
    - get_queryset
    - model
  - View
  - 默认实现了get，渲染成了response
DetailView
- SingleObjectTemplateResponseMixin
  - TemplateResponseMixin
  - 重写了获取模板名字的方法
- BaseDetailView
  - View
  - SingleObjectMixin

1、urls.py

from django.conf.urls import url

from App import views

urlpatterns = [
    url(r'^hello/', views.HelloView.as_view(), name='hello'),
    # url(r'^template/', views.HelloTemplateView.as_view(template_name='hello.html'), name='template'),
    url(r'^template/', views.HelloTemplateView.as_view(), name='template'),
    url(r'^listview/', views.HelloListView.as_view(), name='listview'),
    url(r'^single/(?P<pk>d+)/', views.HeDetailView.as_view(), name='single'),
]

2、models.py

from django.db import models
class Book(models.Model):

    b_name = models.CharField(max_length=32)

3、views.py

from django.shortcuts import render
from django.views import View
from django.views.generic import TemplateView, ListView, DetailView

from App.models import Book


class HelloView(View):

    def get(self, request):

        return render(request, 'hello.html')


class HelloTemplateView(TemplateView):
    template_name = 'hello.html'


class HelloListView(ListView):

    template_name = 'BookList.html'

    model = Book


class HeDetailView(DetailView):

    # template_name = 'Book.html'

    # model = Book

    queryset = Book.objects.all()

4、templates-》Book.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Book</title>
</head>
<body>

<h2>{{ book.b_name }}</h2>

</body>
</html>

5、templates-》BookList.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>BookList</title>
</head>
<body>
    <ul>
        {% for book in object_list %}
            <li><a href="{% url 'cbv:single' pk=book.id %}">{{ book.b_name }}</a></li>
        {% endfor %}

    </ul>
</body>
</html>

6、templates-》App-》book_detail.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>BookDetail</title>
</head>
<body>

    <h2 style="color: green">{{ book.b_name }}</h2>

</body>
</html>