Architecture and technology implementation of WEB2PY framework based on Sahana project

Figure 1. Sahttp://www.aliyun.com/zixun/aggregation/13659.html ">hana and web2py timeline

Fig. 1 Big picture

As you can see from the timeline, there are a few key words: IBM, Sahana, earthquake, web2py, Python ...

IBM must be familiar with the large multinational IT companies, in the face of social responsibility, has always been a strong sense of existence. Sahana Disaster relief Management system is its response to natural disasters, a contingency solution. One of the authors was fortunate enough to participate in the development of the 2013 Yaan earthquake Sahana Eden Disaster relief System in the IBM organization, which provides an in-depth introduction to the WEB2PY application framework used in the project.

Main functions of Sahana disaster relief management System

WEB2PY Architecture and its introduction

It is well known that web2py, a fully functional Web application framework offered as a Python language, was published in 2007, inspired by Ruby on Rails, designed to quickly and rapidly develop WEB applications. Officially known as web2py can span multiple platforms, but the specific application in the Sahana project, the clear support of the platform is Windows and Linux, we in the Sahana project development and deployment process, we have only the support of both platforms.

Of course, when it comes to the Python application framework, it's definitely not going to be a comparison with Django, there are even posts devoted to discussing web2py 10 sins, the existence is reasonable, the concrete framework of who loses who wins, this article does not compare, let us look at the web2py architecture, workflow and its characteristics:

Through the above Web2py architecture and workflow, we can clearly see the Sahana project itself in the entire web2py framework in place, is actually equivalent to web2py a child module, and divided into front-end systems and background management two modules. Technology implementation is based on MVC architecture, the technical framework throughout the implementation of each module, the module has a clear boundary between the principle is mutually exclusive, such a system architecture and technology to achieve what benefits? You can see the answer from the following web2py features.