ruby on rails - Paginate Comments With will_paginate

Question

I'm using the will_paginate gem and currently have a list that is already paginated.

@businesses = Business.paginate(:page => params[:page], :per_page => 7)

<%= will_paginate @businesses %>

<% @businesses.each do |business| %>

To display the comments for a particular entry I use:

<% @business.comments.each do |comment| %>

I thought something like the following might work but it didn't:

@business.comments = Business.comments.paginate(:page => params[:page], :per_page => 7)

<%= will_paginate @business.comments %>

I can't seem to find any answer to paginating the comments (99.9% sure its to do with it being @something.something instead of just @something)

Answer 1

Setting @business.comments not only won't work but is actually dangerous and destructive. You are setting the comments associated to the business to be only the ones returned by that paginate call. (Check what the log shows when you set @business.comments to the paginated call.

You have, however, got the call right. You just need to set it to a different variable rather than reusing @business.comments. If you use @comments instead it will work fine:

@comments = @business.comments.paginate(:page => params[:page], :per_page => 7)

and

@comments.each do |comment|
  ...
end
will_paginate @comments