Eco with statement if

Question

It's Eco, the problem is it should add button just for some models(backbone) in partial, but the statment if not worked.The variables are accessible, but the owner.id a is string and current_user.id is a number.

<% if @owner?.id is current_user.id: %>
    <div class="info-add">
       <button class="button secondary tiny radius">
           <i class="fi-plus"></i>
           Add
       </button>
   </div>
<% end %>

Answer 1

Eco uses CoffeeScript as the template language and in CoffeeScript, is and == become === in the JavaScript version. JavaScript's strict equality operator (===) doesn't do the type conversions that == will do so '6' === 6 is false even though '6' == 6 is true.

You say that:

the owner.id a is string and current_user.id is a number

so @owner.id is current_user.id will always be false.

If your client code is generating the id as a string then it is broken and you should fix it. If your server is sending @owner.id as a string then your server is broken and you should fix your server to send out the correct JSON; if you can't fix the server code then you could add a parse method to your model to fix it for you:

parse: function(response) {
    if(response.id)
        response.id = +response.id // or parseInt(response.id, 10) if you prefer
    return response;
}