[web2py] Colleagues, how can I generate an identification code automatically?

It turns out that I have a company table, in turn, the company can be classified as a client, as a supplier or both together. How to assign a consecutive to the company according to its classification? -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.co

[web2py] Generating graph with chartjs

Recently I found the theme "AdminLTE" (https://adminlte.io/themes/AdminLTE/index.html) I have already implemented it in my application. I would like to generate some graphics like those that appear in the preview but I don't know how yo do it. Would any of you can help me with any example to und