posts_controller.rb

class Admin::PostsController < Admin::AdminController

  #only showing the update method
  def update
    @post = Post.find(params[:id])
    
    if @post.valid?
      add_author_to_post
      save_or_remove_post_categorization
    end
     
    respond_to do |format|
      if @post.update_attributes(params[:post])
        format.html { redirect_to [ :edit_admin_post ], :notice => 'Post was successfully updated.' }
      else
        format.html { render :action => "edit" }
      end
    end
  end
  
  #method created for adding user to posts table
  def add_author_to_post
     @user = User.find_by_id(session[:user_id])
     @user.posts << @post
  end
end