module Orchestrate::Rails::Tutorial::GetEvents

Getting orchestrate.io events¶ ↑

The films example application includes a comment feature that provides the ability to associate comments with each film in the collection. This feature is implemented using orchestrate.io's time-ordered events.

Updating the Film model to get orchestrate.io events.¶ ↑

Update <rails-root>/app/models/film.rb to add the commments method.

class Film < Orchestrate::Rails::Model

  def comments
    self.events('comments')
  end
end

Updating the films controller.¶ ↑

Update <rails-root>/app/controllers/films_controller.rb to call the comments method from the show action:

class FilmsController < ApplicationController

  def index
    @films = Film.all
  end

  def show
    @film = Film.find params[:id]
    @comments = @film.comments
  end
end

Updating the view to display comment events.¶ ↑

Update <rails-root>/app/views/films/show.html.haml as shown:

%ul.films.list-group
 %li.list-group-item
  %h3.list-group-item-heading= @film.title
  %ul.list-group
   %li.list-group-item
    = render partial: 'films/film_info'
   - if @comments and @comments.length > 0
    %li.list-group-item
     = render partial: 'films/comments', locals: { comments: @comments }

Now we'll add the partial view that displays the comments.

Create <rails-root>/app/views/films/_comments.html.haml as shown:

%h3.list-group-item-heading= "Comments"
%ul.list-group
 %li.list-group-item
  .row.list-group-item-heading
   .col-md-3.col-md-offset-1= "USER"
   .col-md-7= "COMMENT"
  - comments.each do |comment|
   .row.film-comment
    .col-md-3.col-md-offset-1.film-heading= comment.user.humanize.titleize
    .col-md-7= comment.text

Let's check it out¶ ↑

Navigate to “The Godfather” to see its comments.

Next¶ ↑

Getting an Orchestrate.io graph