web2py embedding python into jQuery

Question

I am trying to write a jQuery even that inserts an entry into a table like this:

 $('#insertButton').on('click',function(){
        {{db.myTable.insert(user_id=auth.user_id, text=myText)}}
  });

As a real general example of what I am trying to do. It's located in the block of my The problem is that when the view is loaded the function fires automatically. It does that insert every time the page is loaded. Is there some quirk of web2py that doesn't let you have python code embedded in your jQuery events? Is there a way around this?

Don't mix things up. Python is for the server-side only. jQuery is for client-side only. — aldux
– aldux, Commented Jul 12, 2013 at 17:34

Anthony · Accepted Answer · 2013-07-12 17:48:45Z

1

In web2py templates, all of the Python code is executed on the server when the page is first generated. The line:

{{db.myTable.insert(user_id=auth.user_id, text=myText)}}

does not start with an =, so it does not write anything into the HTML response. Instead, it simply executes that Python code on the server. You cannot simply embed Python in your Javascript -- the browser wouldn't know what to do with it.

If you want to use Javascript to trigger an insert on the server, you'll have to do it via an Ajax call to an action that handles the insert. See here as well as documentation on the jQuery .ajax method.

answered Jul 12, 2013 at 17:48

Anthony

25.5k3 gold badges31 silver badges58 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Ryan Cori Over a year ago

Ok this is really confusing documentation but I think I am starting to see how I would use this. Thank you.

raj454raj Over a year ago

Hey @Anthony, I was trying to use the URL helper in one of the javascript files that is included in layout.html, but it takes it as a string instead of evaluating it. Should I write the same js code as inline js in layout.html it works perfectly fine. Any workaround or a conventional way to use that in static js files.

Collectives™ on Stack Overflow

web2py embedding python into jQuery

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related