Submitting an array with form_for

Question

Is there a way to submit an array using 'form_for'?

Here's an example of what I mean if I used regular html to pass the values:

<input type="text" name="product[cost][]">

Which should become:

params["product"]["cost"]

But is there any way to do this using form_for?

Answer 1

No, Rails interprets all form submissions as (escaped) strings. You should convert the string into an array manually on the backend inside a controller action or before_filter.

What is an example of the kind of value you're expecting the user to pass in?