app/controllers/follows_controller.rb

   1 class FollowsController < ApplicationController
   2   include UserMethods
   3
   4   layout "site"
   5
   6   before_action :authorize_web
   7   before_action :set_locale
   8   before_action :check_database_readable
   9
  10   authorize_resource
  11
  12   before_action :check_database_writable
  13   before_action :lookup_friend
  14
  15   def show
  16     @already_follows = current_user.follows?(@friend)
  17   end
  18
  19   def create
  20     follow = Follow.new
  21     follow.follower = current_user
  22     follow.following = @friend
  23     if current_user.follows?(@friend)
  24       flash[:warning] = t ".already_followed", :name => @friend.display_name
  25     elsif current_user.follows.where(:created_at => Time.now.utc - 1.hour..).count >= current_user.max_friends_per_hour
  26       flash[:error] = t ".limit_exceeded"
  27     elsif follow.save
  28       flash[:notice] = t ".success", :name => @friend.display_name
  29       UserMailer.follow_notification(follow).deliver_later
  30     else
  31       follow.add_error(t(".failed", :name => @friend.display_name))
  32     end
  33
  34     referer = safe_referer(params[:referer]) if params[:referer]
  35
  36     redirect_to referer || user_path
  37   end
  38
  39   def destroy
  40     if current_user.follows?(@friend)
  41       Follow.where(:follower => current_user, :following => @friend).delete_all
  42       flash[:notice] = t ".success", :name => @friend.display_name
  43     else
  44       flash[:error] = t ".not_followed", :name => @friend.display_name
  45     end
  46
  47     referer = safe_referer(params[:referer]) if params[:referer]
  48
  49     redirect_to referer || user_path
  50   end
  51
  52   private
  53
  54   ##
  55   # ensure that there is a "friend" instance variable
  56   def lookup_friend
  57     @friend = User.active.find_by!(:display_name => params[:display_name])
  58   rescue ActiveRecord::RecordNotFound
  59     render_unknown_user params[:display_name]
  60   end
  61 end