Question

I have a couple of questions about using databases with Jquery Mobile.

When you are building a Jquery Mobile application, do you use regular PHP/MYSQL for login and contact forms?

What would happen if the user did not have a connection to the internet?

Is there a way to “cache” a database?

Sorry if these questions seem silly, I am new to Jquery Mobile.

Thanks friends.

Edit: The contact form will only have 3 or 4 inputs. The form is simply a small feedback form.

Answer 1

You could use any Backend technology you wanted, PHP and MySQL are great for this. I prefer PostgreSQL over MySQL but that’s another debate.

As for client-side database you could use HTML5 Local Storage ( more on this here ), but for any server-side authentication / interaction you will need a internet connection.

For no internet connection IMHO I would show an error to the end user saying something like, “Services are not available” or “Please check your internet connection”.

For Offline Application use you could look into these ( I have not tried any of these )

• http://www.html5rocks.com/en/features/offline
• http://gazpo.com/2011/08/html5-offline-applications/
• http://html5doctor.com/go-offline-with-application-cache/

How to check for internet connection ( What others have tried )

• Check if connected to a network; jQuery
• JQuery Mobile Detected if there's internet Connection
• Jquery Plugin for Detecting Internet Connection