Review Project
Let’s explore the project code and write some app code.
ApplicationController
The starter project comes with an ApplicationController. It looks like this:
app/controllers/application_controller.rb
class ApplicationController < Jets::Controller::Base
end
Generally, your controllers will inherit from ApplicationController.
Create Posts Scaffold
Let’s create some code so we can create posts. We’ll generate it.
❯ jets generate scaffold post title:string body:text published:boolean
invoke active_record
create db/migrate/20231029041209_create_posts.rb
create app/models/post.rb
invoke resource_route
route resources :posts
invoke scaffold_controller
create app/controllers/posts_controller.rb
invoke erb
create app/views/posts
create app/views/posts/index.html.erb
create app/views/posts/edit.html.erb
create app/views/posts/show.html.erb
create app/views/posts/new.html.erb
create app/views/posts/_form.html.erb
create app/views/posts/_post.html.erb
invoke resource_route
invoke helper
create app/helpers/posts_helper.rb
The generated code looks something like this:
app/controllers/posts_controller.rb
class PostsController < ApplicationController
before_action :set_post, only: %i[ show edit update destroy ]
# GET /posts
def index
@posts = Post.all
end
# GET /posts/1
def show
end
# GET /posts/new
def new
@post = Post.new
end
# GET /posts/1/edit
def edit
end
# ...
end
It’s a controller with the basic CRUD actions. Jets will create one Lambda function to handle all controller requests.
Next, we’ll test the app locally.