On Tuesday, June 12, 2012 3:55:32 PM UTC-4, akkdio wrote: > > > > >> > Perhaps it is something basic as a beginner I am. I have the >> following: >> >> There was no need to show all this code, it is easier for us to see >> what is going on if you just show the relevant bits >> >> Understand and thanks. > >> > [snip] >> >> > >> > I want the following partial to be shown in the Main#Welcome view: >> > >> > partial is located in the composer view folder: >> > >> > <h3>Editions List</h3> >> > <ul> >> > <% @composer.editions.map do |edition| %> #line 3 in error below >> > [snip] >> > >> > My limited knowledge believes the call to the partial should work and >> indeed >> > it does if done like this within the Composer#Show view: >> > >> > <%= render "edition" %> >> > >> > However, when I make the partial call from the Main#Welcome view like >> this: >> > The Main#Welcome view: >> > <%= render :partial => "composers/edition" %> >> > >> > It results in this error: >> > >> > NoMethodError in Main#welcome >> > >> > Showing >> > >> /Users/akkdio/railsapps/rails_3/ruby_for_rails/r4r_music/r4r_music1/app/views/composers/_edition.html.erb >> >> >> > where line #3 raised: >> > >> > undefined method `editions' for nil:NilClass >> >> That means that @composer is nil, since that is the object on which >> 'editions' is being called. >> >> Have a look at the Rails Guide on Layouts and Rendering, particularly >> the section Using Partials to see how to pass local variables to the >> partial. >> >> Also have a look at the guide on debugging to get ideas on how to >> debug your code so that you can work out what is going on. >> > > Will check this. thanks. > >> >> I notice that you have asked for help twice before on this list and >> neither time did you reply to the suggestions offered or report >> whether you had found a solution. :( >> > > Not an excuse but I was not notified of the someone answering... Sorry. > This time I checked back and check "email updates to me" Sorry again - I > appreciate all the guidance i can get. > >> >> Colin >> > My solution/learning (sort of) I read through the Rails Guide and it was somewhat helpful - lots to learn -
My disconnect however that I was under the impression that the partial because it worked when I used in the composer show method it would work in the Main#Welcome view. Well, this is incorrect because in the Composer#Index view I click on the Composer ID (set up as a link_to on the id: <td><%= link_to composer.id, composer_path(composer) %></td> This is how the partial gets the composer id in order make the editions partial work and why the editions method returned a Nil when called from the Main#welcome view. It was saying " what composer? I can't find no stinking Composer" If I do want the editions listed in the Main#Welcome view for each composer then I will have to find a way to send the editions method the composer id it is looking for. Time for more reading. Thanks all for the nudge. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/rjdaeRelwt4J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
