Is there a custom fields plugin or component of django

[kevon wang]

I want to find a plugin of django what it can custom fields in the form. The functions include custom fields in web page and create the fields in database.

plugin's flow like these:
1.we can define fields in web page  

 --> 2.create the table in database(table includes all custom fields)

--> 3.generate CURD operations in web server 

--> 4.we can CURD records in web pages.

I want to know whether there is a plugin or component of django, If there is please tell me. Maybe there is the other plugin like this as well.