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| Goal |
Set up a book list page, display book name lists, and achieve click on the title to jump to the book details page, display the book details.
{% url ‘some-url-name‘ value1 value2 %}url(r‘^bookinfo/(\d+)/$‘, polls_views.bookinfo, name=‘book‘){% url ‘book‘ 3 %} ;| Existing databases and information |
+----+--------------+-----------+
| ID | name | person_id |
+----+--------------+-----------+
| 1 | Siege | 1 |
| 2 | Butterfly Dream | 2 |
| 3 | Robinson Crusoe | 3 |
| 4 | The Little Prince | 4 |
+----+--------------+-----------+
+----+------+-----+
| ID | name | Age |
+----+------+-----+
| 1 | Joe | 12 |
| 2 | Walt | 18 |
| 3 | Walt | 17 |
| 4 | Jany | 20 |
| 5 | John | 29 |
+----+------+-----+
| Ideas |
| Realize |
# 导入路由，支持正则表达式fromimport url# 在路由匹配模式中添加图书列表页面的路由= [ url(r‘^booklist/$‘# 定义拼接地址，获取书籍信息 url(r‘^bookinfo/(\d+)/$‘, polls_views.bookinfo, name=‘bookinfo‘)]
# 图书列表页面控制器def booklist(request): # 导入图书类 fromimport Book # 实例化一个图书对象 = Book.objects.all() # 建立空字典存储booklist = {} dict_book[‘booklist‘= books # 向bookList.html页面传入数据dict_book return‘bookList.html‘, dict_book)
{# 在bookList.html文件的body下添加如下代码 #}<body> 图书架 <ul> {% for book in booklist %} {# 使用每本书的book.id作为获取详情的查询条件，生成链接 #} <li><a href="{% url ‘bookinfo‘ book.id %}">{{ book.name }}</a></li> {% endfor %} </ul></body>
# 获取书籍信息def bookinfo(request, id): # 导入图书类 from polls.models import Book # 实例化一个图书对象，使用book.id查询该书籍数据 book = Book.objects.get(id=id) # 建立空字典存储booklist dict_book = {} # 存储book书名 dict_book[‘book‘] = book.name # 存储book作者 dict_book[‘author‘] = book.person.name # 存储book作者年龄 dict_book[‘author_age‘] = book.person.age # 向bookInfo.html页面传入数据dict_book return render(request, ‘bookInfo.html‘, dict_book)
{# 在bookInfo.html文件的body下添加如下代码 #}<body> {{ book }} <ul> <li>{{ author }}</li> <li>年龄：{{ author_age }}</li> </ul></body>
| Achieve results |
As can be seen, the address bar in the 127.0.0.1:8000/BOOKINFO/3 "3" is based on the book "Robinson Crusoe" ID obtained, "Robinson Crusoe" in the database table polls_book the corresponding ID is 3.
Table Polls_book
+----+--------------+-----------+
| ID | name | person_id |
+----+--------------+-----------+
| 1 | Siege | 1 |
| 2 | Butterfly Dream | 2 |
| 3 | Robinson Crusoe | 3 |
| 4 | The Little Prince | 4 |
+----+--------------+-----------+
| Summarize |
Using the URL method in Django to realize the automatic generation of hyperlink address for address dynamic stitching
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