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Ruby

Ryan Ellis
Ryan Ellis
864 Points
Posted by Ryan Ellis
Ryan Ellis
864 Points

How do I filter posts in Rails 4 with a scope based off a nested attribute?

I need to filter the posts that appear on my index page. I filtered them initially by using this condition in the view:

if current_user.courses.any? {|h| h[:name] == post.course.name}

But since I added will_paginate, I get blank pages because it paginates even the posts I don't want to show. How can I use a scope to filter out the posts in the controller?

These are my models:

class Post < ActiveRecord::Base
belongs_to :user
belongs_to :course
has_many :comments

end

and

 class Course < ActiveRecord::Base
 belongs_to :user
 has_many :posts
 belongs_to :major

end and my controller codes

  def index
 @posts = Post.all.order("created_at DESC").paginate(:page =>
  params[:page], :per_page => 1)   
  end