guoren/app/controllers/main_controller.rb

class MainController < ApplicationController
  include MainHelper
  before_action :logged_in_user


  def show
    @user = current_user
    page_num = params[:page]
    post_type = params[:type]

    if !page_num
      page_num = 1
    end
    if !post_type
      post_type=[1,2,3]
    end

    @posts = MicroPost.where(post_type: post_type).paginate(:page => page_num, :per_page => 10).order(post_time: :desc)
    @micro_posts_array = get_post(@posts)
    render 'main'

  end

  def activity
    micro_post_id = params[:micropost_id]
    join = params[:join].to_s
    micro_post = MicroPost.find_by(id: micro_post_id)
    if join == "true"
      micro_post.engage_people += 1
    else
      micro_post.engage_people -= 1
    end
    if micro_post.save
      render json: {total_num: micro_post.engage_people}
    end

  end

end