CODEWITHSUNDEEP
javascriptruby-on-railsescaping
user3711600
user3711600

Reputation: 873

ruby code being displayed as text rather than executing in js.erb file

I'm trying to find and replace some html code using an AJAX call.

The following code in my .js.erb file successfully executes and displays the partial view called 'edit unit' with the resource '@units[0]'.

$("#edit_unit").replaceWith( "<%= escape_javascript(sync partial: 'edit_unit', resource: @units[0]) %>" );

However, when I try to accomplish the same thing, but define a string in the rails controller and pass it through to my .js.erb file, it doesn't execute correctly, i.e.

In my rails controller:

@string = "sync partial: 'edit_unit', resource: @units[0]"

In my .js.erb file:

$("#edit_unit").replaceWith( "<%= escape_javascript(@string) %>" );

When I do it this way the string is displayed as text on the page instead of executing and displaying the partial view.

Why is this happening?

Update:

Eval seems to execute the string successfully. However, it doesn't seem to work in the case when I loop through multiple strings. 

$("#edit_delivery_unit_div").replaceWith(

    <% @array.each do |string| %>
        '<%= escape_javascript(eval(string)) %>'
    <% end %>

)

This doesn't return any errors, but also doesn't display the partial views. Any ideas?

Upvotes: 0

Views: 307

Answers (1)

Rajdeep Singh
Rajdeep Singh

Reputation: 17834

String can't be executed, you can use eval to achieve this, try this out

$("#edit_unit").replaceWith( "<%= escape_javascript(eval(@string)) %>" );

But use this with precaution as you are giving full access to the system

Upvotes: 1

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