我愿通过
I found this dataset nyc realtime transport 我想说一下。 I need some tips on how to get this done.
I know I can use python to query the txt file every N minutes. I would then store the last M minutes of traffic data server-side.
When the user visits the site, the server will serve the last M minutes of data. But then what? The client queries the server via cubism.js? or does the server push updates to the user? 我通过读到,但有一些例子说明如何在没有立方或图表的情况下这样做。 此外,这是我自我休半天以来的第一个项目,因此欢迎这方面的任何ps。
Is there a way to force Django models to pass a field to a MySQL function every time the model data is read or loaded? To clarify what I mean in SQL, I want the Django model to produce something like ...