Rails 4 Ajax NoMethodError-我的create.js.erb文件中nil：NilClass：的未定义方法'id'

Question

I'm trying to render a partial when a button is clicked. I believe I'm doing something obviously wrong... and I expect it's not going to be in the following:

$('#modrequest').empty();
$('#modrequest').html("<%= escape_javascript(render(:partial => 'moderator_requests/links')).html_safe %>");

The error is

NoMethodError - undefined method `id' for nil:NilClass:

I expect I'm doing something wrong elsewhere, but I'm not sure where, so instead of posting a ton of code, I'll post any file requested.

Thanks

Answer 1

Error

The error will likely be a result of you calling unset data in your partial :

#partial
<%= item.id %>

--

Fix

Because you have to pass local variables to your partials , you're not passing any - which will prevent it from calling the data it needs. You'll be able to resolve the issue like this:

$('#modrequest').html("<%=j render(:partial => 'moderator_requests/links', locals: {your: "local"}).html_safe %>");

If your data is not able to be passed to your partial, you'll be much better putting it into a helper , which will allow you to populate it in any part of your app

--

Definition

NoMethodError - undefined method `id' for nil:NilClass

This error basically means you're trying to call id on a non-existent piece of data. You'll either need to show the partial, or determine which data you're trying to call in the partial

To fix this, you basically need to be able to pass the right data to your partial; either by way of local variables, or with a helper