ruby on rails - Render collection using a partial giving "undefined method for nil:NilClass" -


i'm trying render collection of projects using project partial i'm getting following error:

undefined method `customer' nil:nilclass extracted source (around line #1): 1: <p><%= company_name(@project) %><p>

the stacktrace is:

app/helpers/projects_helper.rb:4:in `company_name' app/views/projects/_summary.html.erb:1:in app/views/customers/index.html.erb:11:in

so, index checks projects start with:

<% if @projects.any? %>   <%= render :partial => "projects/summary", :collection => @projects %> <% end %>

my partial (_summary.html.erb) simply:

<p><%= company_name(@project) %><p> <p><%= summary_description(@project) %><p>

and projectshelper company_name method is

def company_name(project)   if project.customer.business_name.blank?   ...do stuff...

if following via rails console, works fine:

projects.first.customer.business_name.blank?

i'm confused because thought that's rendering collection supposed do. appreciated.

you should change partial to

<p><%= company_name(project) %><p> <p><%= summary_description(project) %><p>

see rails documentation under "rendering collections".


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