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DVD of Rails
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ogom
August 12, 2014
Programming
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DVD of Rails
Detonation Velocity Development
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Transcript
DVD of Rails 63rd RubyKansai Takashi Ogomori
Detonation Velocity Development Ruby on Rails Demonstration of Live Coding.
Let's Make the Doorkeeper with Rails. 2/18
Rails New Rails Server rails new doorswatch cd doorswatch/ rails
server 3/18
Welcome Welcome Controller Root Route rails generate controller welcome index
cat << __EOS__ > ./config/routes.rb Rails.application.routes.draw do root 'welcome#index' end __EOS__ 4/18
Bootstrap Gemfile Bundler gem 'therubyracer', platforms: :ruby echo "gem 'twitter-bootswatch-rails'"
>> Gemfile echo "gem 'twitter-bootswatch-rails-helpers'" >> Gemfile bundle 5/18
Bootswatch Theme Layout rails generate bootswatch:install yeti rails generate bootswatch:import
yeti --force rails generate bootswatch:layout yeti cat << __EOS__ > ./app/controllers/welcome_controller.rb class WelcomeController < ApplicationController layout 'yeti' def index end end __EOS__ 6/18
Hello, world! Container cat << __EOS__ > ./app/views/welcome/index.html.erb <div class="container">
<div class="page-header" id="banner"> <div class="row"> <div class="col-lg-8 col-md-7 col-sm-6"> <h1>Welcome</h1> </div> </div> </div> </div> __EOS__ 7/18
Domain Model 8/18
Resources Group User rails generate scaffold group name:string rake db:migrate
rails generate bootswatch:themed Groups --force rails generate scaffold user name:string email:string rake db:migrate rails generate bootswatch:themed Users --force 9/18
Navbar Partial cat << __EOS__ > ./app/views/layouts/_navbar.html.erb <ul class="nav navbar-nav">
<%= content_tag(:li, class: controller_name == 'groups' ? :active : nil) do %> <% link_to :Groups, groups_path %> <% end %> <%= content_tag(:li, class: controller_name == 'users' ? :active : nil) do %> <% link_to :Users, users_path %> <% end %> </ul> __EOS__ 10/18
References Member Groups Route rails generate scaffold member group:references user:references
rake db:migrate rails generate bootswatch:themed Members --force resources :groups do resources :members end 11/18
Link Groups Show Members Index <%= link_to t('.members', :default =>
t("helpers.links.members")), group_members_path(@group), :class => 'btn' %> <%= link_to t('.new', :default => t("helpers.links.new")), new_group_member_path, :class => 'btn btn-primary' %> 12/18
Model Group User class Group < ActiveRecord::Base has_many :members has_many
:users, through: :members end class User < ActiveRecord::Base has_many :members has_many :groups, through: :members end 13/18
Controller Before Action Create Private before_action :set_group, only: [:new, :create]
@member = @group.members.new(member_params) def set_group @group = Group.find(params[:group_id]) end 14/18
View Form Show <%= form_for [@group, @member], :html => {
:class => 'form-horizontal' } do |f| %> <div class="form-group"> <%= f.label :user_id, :class => 'control-label' %> <%= f.collection_select :user_id, User.all, :id, :name, {prompt: "Select for a user"}, :class => 'form-control' %> </div> <dl class="dl-horizontal"> <dt><strong><%= model_class.human_attribute_name(:group_id) %>:</strong></dt> <dd><%= @member.group.name %></dd> <dt><strong><%= model_class.human_attribute_name(:user_id) %>:</strong></dt> <dd><%= @member.user.name %></dd> </dl> 15/18
Octicons Bundler Plus echo "gem 'octicons-rails'" >> Gemfile bundle <%=
link_to new_group_member_path, :class => 'btn btn-primary' do %> <span class="octicon octicon-plus"></span> <span><%= t('.new', :default => t("helpers.links.new")) %></span> <% end %> 16/18
Gravatar Bundler Image Tag echo "gem 'gravatar_image_tag'" >> Gemfile bundle
<td> <%= gravatar_image_tag(member.user.email, alt: member.user.name, gravatar: { size: 28 }) %> <%= member.user.name %> </td> 17/18
Thank You! ♥ ɿ? 18/18