CoffeeScript and erb : require variable file

Question

In my rails 3.1 App, I have 3 different javascript files for my html table. Let say, table1.js.coffee, table2 and table3.

In my application.js file, I have :

// = require table

And in my table.js.coffee.erb, I wish to do something like that :

// = require <%= 'table2' %>
// or (more useful)
// = require <%= Settings.js_table %>

Like this, I will be able to change my table's behavior from an extern config file. For the moment, it's not working. And I was wondering if it's possible ?

Thank you!

possible duplicate of Using erb variable in rails asset pipeline — Michelle Tilley
– Michelle Tilley, Commented Jan 27, 2012 at 23:15

Richard Hulse · Accepted Answer · 2012-01-30 20:28:23Z

1

It won't work.

Files in the pipeline are compiled on the first request, based on their contents (and any resolved erb) at that time.

If you reference something inside a pipeline file it will not update if that is changed elsewhere.

Edit in response to comment:

Sorry, I should have been clearer. The general case of this won't work.

In the case of using it with require, the require statement is a Sprockets specific directive. It is processed by Sprockets before the erb handler gets it.

The directive requires one argument - a string. In this case you have passed 3 arguments to the require directive: an opening erb tag, a quoted string, and a closing erb tag.

Thats why you get a 3 for 1 argument error.

The best (and possibly) only way to include files dynamically at run time is from your view layer.

edited Jan 30, 2012 at 20:28

answered Jan 28, 2012 at 4:55

Richard Hulse

10.6k2 gold badges36 silver badges38 bronze badges

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

1 Comment

Mathieu Mahé Over a year ago

I'm aware of that. But even the = require <%= 'table2' %> doesn't work. I catch this error : ArgumentError: wrong number of arguments (3 for 1)

Collectives™ on Stack Overflow

CoffeeScript and erb : require variable file

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related