app/controllers/walls_controller.rb
class WallsController < ApplicationController
before_action :authenticate_user!
def index
@walls = User.all.order("user_name")
end
def show
@posts = Post.all.where(wall_user_id: params[:id]).order("updated_at DESC")
session[:wall_user_id] = params[:id]
@post = Post.new
end
end