将从SQL数据库检索的Rails对象上的ruby存储到javascript对象中

Question

So I have an assets table in my sql database and I am accessing them in my view like so:

  <% @step.assets.each do |asset| %>
    <td><%= asset.name%></td>
    <td><%= asset.width%></td>
    <td><%= asset.height%></td>
    <td><%= asset.x%></td>
    <td><%= asset.y%></td>
  <% end -%>

And as you can see displaying the different attributes inside a table for the user to see.

The thing that I want to do now is actually save those asset attributes in javascript objects so that I can manipulate them in the ui. I tried something like:

    var obj = <%= @step.asset.name%>; 

But that didn't work and I have searched around for a couple hours now looking for a solution. I have a ton of experience with javascript but Ruby on Rails is still pretty new to me. Any help would be appreciated.

Answer 1

If you need something simple you can use to_json , like in the following:

var asset = <%= raw @step.asset.to_json %>

By the way, it's not a very maintainable solution. So you could use a lightweight framework like spinejs.