アクティビティ／フィード実装 - public_activity

• pokonski/public_activity · GitHub
• #406 Public Activity - RailsCasts

---

Gemfile:

gem 'public_activity'

bundle update

rails g public_activity:migration
rake db:migrate

app/models/item.rb

class Item < ActiveRecord::Base
  include PublicActivity::Model
  tracked owner: Proc.new{ |controller, model| controller.current_user }, recipient: Proc.new{ |controller, model| model.user }, params: { reason: 'TEST' }
  〜
end

app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  include PublicActivity::StoreController

  # ログインユーザ
  def current_user
    @current_user ||= User.where( id: session[:user_id] ).first
  end
end

rails s

app/controllers/activities_controller.rb

class ActivitiesController < ApplicationController
  # 一覧
  def index
    @activities = PublicActivity::Activity.where( recipient_id: current_user.id ).order( "created_at DESC" ).all
  end
end

config/routes.rb

  resources :activities

app/views/activities/index.html.erb

<% @activities.each do |activity| %>
  <div class="activity"><%= render_activity activity %></div>
<% end %>

app/views/public_activity/item/_create.html.erb

<%= link_to activity.trackable.canva.name, activity.trackable.canva if activity.trackable %>：<%= link_to activity.trackable.board.name, activity.trackable.board if activity.trackable %> に<%= link_to( activity.owner.name, activity.owner ) if activity.owner %>さんが新しいカードを投稿しました。

rails c
> PublicActivity::Activity.all.tapp
----------
  PublicActivity::ORM::ActiveRecord::Activity Load (0.3ms)  SELECT "activities".* FROM "activities" 
[
    [7] #<PublicActivity::ORM::ActiveRecord::Activity:0x007fd81d2511e0> {
                    :id => 8,
          :trackable_id => 57,
        :trackable_type => "Item",
              :owner_id => 3,
            :owner_type => "User",
                   :key => "item.create",
            :parameters => {
            :reason => "TEST"
        },
          :recipient_id => 3,
        :recipient_type => "User",
            :created_at => Wed, 20 Mar 2013 18:16:16 JST +09:00,
            :updated_at => Wed, 20 Mar 2013 18:16:16 JST +09:00
    }
]
----------

---

app/models/item.rb

※メソッド名を「create_activity」にするとGem側のメソッド名と被り「wrong number of arguments (1 for 0)」エラーになる

  after_create :generate_activity

  # メンバー分アクティビティ生成
  def generate_activity
    members = Membership.where( canva_id: self.canva_id, status: "approval" ).all
    members.each { |member|
      self.create_activity( action: 'create', owner: self.user, recipient: member.user )
    }
  end