Sometimes, a web application may require a URL structure that is
having more than one level. TurboGears can traverse object hierarchy to
find appropriate method that can handle your request.
A project ‘quickstarted’ with gearbox has a BaseController class in project’s lib folder. It is available as ‘Hello/hello/lib/base.py’.
It serves as base class for all sub controllers. In order to add a sub level of URL in application, design a sub class called BlogController derived from BaseController.
This BlogController has two controller functions, index() and post(). Both are designed to expose a template each, blog.html and post.html.
Note − These templates are put inside a sub folder − templates/blog
When a URL http://localhost:8080/blog/ is entered, it will be mapped to index() controller function inside BlogController class. Similarly, http://localhost:8080/blog/post will invoke post() function.
The code for blog.html and post.html is as below −
When a URL http://localhost:8080/blog/post is entered, it will produce the following output −
A project ‘quickstarted’ with gearbox has a BaseController class in project’s lib folder. It is available as ‘Hello/hello/lib/base.py’.
It serves as base class for all sub controllers. In order to add a sub level of URL in application, design a sub class called BlogController derived from BaseController.
This BlogController has two controller functions, index() and post(). Both are designed to expose a template each, blog.html and post.html.
Note − These templates are put inside a sub folder − templates/blog
class BlogController(BaseController): @expose('hello.templates.blog.blog') def index(self): return {} @expose('hello.templates.blog.post') def post(self): from datetime import date now = date.today().strftime("%d-%m-%y") return {'date':now}Now declare an object of this class in RootController class (in root.py) as follows −
class RootController(BaseController): blog = BlogController()Other controller functions for top level URLs will be there in this class as earlier.
When a URL http://localhost:8080/blog/ is entered, it will be mapped to index() controller function inside BlogController class. Similarly, http://localhost:8080/blog/post will invoke post() function.
The code for blog.html and post.html is as below −
Blog.html <html> <body> <h2>My Blog</h2> </body> </html> post.html <html> <body> <h2>My new post dated $date</h2> </body> </html>When a URL http://localhost:8080/blog/ is entered, it will produce the following output −
When a URL http://localhost:8080/blog/post is entered, it will produce the following output −
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