8 4 end 5 6 private def message 7 'Hello' 8 end 9 end g = Greeting.new 12 g.hello $ ruby lib/lessons/greeting.rb Hello Ruby public method protec

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1 8 Rails 8.1 PicoPlanner Ruby lib lessons $ mkdir -p lib/lessons lib/lessons greeting.rb lib/lessons/greeting.rb (New) 1 class Greeting 2 def hello 3 puts message 87

2 8 4 end 5 6 private def message 7 'Hello' 8 end 9 end g = Greeting.new 12 g.hello $ ruby lib/lessons/greeting.rb Hello Ruby public method protected method private method def visibility C Greeting hello message greeting.rb lib/lessons/greeting.rb 11 g = Greeting.new 12 g.hello 13 + puts g.message 88

3 8.1 puts g.message lib/lessons/greeting.rb13in `<main>' private method `message' called > for #<Greeting0x f12ef10> (NoMethodError) greeting.rb lib/lessons/greeting.rb 1 class Greeting 2 def hello 3 - puts message 3 + puts self.message 4 end lib/lessons/greeting.rb3in `hello' private method `message' called for > #<Greeting0x cd0d8a8> (NoMethodError) from lib/lessons/greeting.rb12in `<main>' class K private def foo 'foo' end def bar 'Bar' end end 2 private private 89

4 8 K foo bar Rails def private Ruby Ruby 2.1 private K foo class K def foo 'foo' end private foo end Ruby 2.1 def end def private 8.2 plan_item_params plan_items create update app/controllers/plan_items_controller.rb 21 def create 22 PlanItem.create!( 23 params[plan_item].permit(name, description, starts_at, ends_at) 90

5 8.2 plan_item_params 24 ) redirect_to plan_items 27 end def update 30 plan_item = PlanItem.find(params[id]) 31 plan_item.update!( 32 params[plan_item].permit(name, description, starts_at, ends_at) 33 ) redirect_to plan_items 36 end 37 end params[plan_item].permit(name, description, starts_at, ends_at) redirect_to plan_items plan_items_controller.rb app/controllers/plan_items_controller.rb 35 redirect_to plan_items 36 end private def plan_item_params 39 + params[plan_item].permit(name, description, starts_at, ends_at) 40 + end 41 end 91

6 8 plan_item_params plan_item_params create app/controllers/plan_items_controller.rb 21 def create 22 - PlanItem.create!( 23 - params[plan_item].permit(name, description, starts_at, ends_at) 24 - ) 22 + PlanItem.create!(plan_item_params) redirect_to plan_items 25 end update app/controllers/plan_items_controller.rb 27 def update 28 plan_item = PlanItem.find(params[id]) 29 - plan_item.update!( 30 - params[plan_item].permit(name, description, starts_at, ends_at) 31 - ) 29 + plan_item.update!(plan_item_params) redirect_to plan_items 32 end 92

7 ERB partial 1 lessons hello config/routes.rb config/routes.rb 1 Rails.application.routes.draw do 2 root 'top#index' 3 get 'lessons/form' => 'lessons#form' 4 get 'lessons/register' => 'lessons#register' 5 + get 'lessons/hello' => 'lessons#hello' 6 resources plan_items, 7 only [ index, new, show, edit, create, update ] 8 end app/controllers lessons_controller.rb app/controllers/lessons_controller.rb 5 def register = params[user_name] 7 end def hello 10 + end 11 end app/views/lessons hello.html.erb 93

8 app/views/lessons/hello.html.erb (New) 1 <div class='card'> 2 <div class='card-block'> 3 <%= render 'content' %> 4 </div> 5 </div> app/views/lessons _content.html.erb _ app/views/lessons/_content.

8 8 app/views/lessons/hello.html.erb (New) 1 <div class='card'> 2 <div class='card-block'> 3 <%= render 'content' %> 4 </div> 5 </div> app/views/lessons _content.html.erb _ app/views/lessons/_content.html.erb (New) 1 <p class='card-text'>hello, world!</p> CSS card card-block card-text Bootstrap Card 9 http//localhost3000/lessons/hello lessons#hello hello.html.erb 3 <%= render 'content' %> ERB render HTML 94

9 8.4 _.html.erb _content.html.erb app/views/lessons _content.html.erb hello.html.erb 3 app/views app/views/shared _notes.html.erb <%= render 'shared/notes' %> 8.4 render 2 hello.html.erb app/views/lessons/hello.html.erb 1 <div class='card m-1'> 2 <div class='card-block'> 3 - <%= render 'content' %> 3 + <%= render 'content', name 'Alice' %> 4 + <%= render 'content', name 'Bob' %> 5 </div> 6 </div> 4 render 2 { name 'Alice' } name 'Alice' _content.html.erb 95

8 app/views/lessons/_content.html.erb 1 - <p class='card-text'>hello, world!</p> 1 + <p class='card-text'>hello, <%= name %>!</p> http//localhost3000/lessons/hello 8.2 8.2 _content.html.erb <%= name %> 'Alice' 'Bob' 8.

10 8 app/views/lessons/_content.html.erb 1 - <p class='card-text'>hello, world!</p> 1 + <p class='card-text'>hello, <%= name %>!</p> http//localhost3000/lessons/hello _content.html.erb <%= name %> 'Alice' 'Bob' 8.5 PicoPlanner ERB app/views/plan_items new.html.erb edit.html.erb new.html.erb 2 23 app/views/plan_items/new.html.erb 1 <%= do f %> 2 - <div class='form-group'> 3 - <%= f.label name, ' ' %> 4 - <%= f.text_field name, class 'form-control', required true %> 17 - <div class='form-group'> 18 - <%= f.label ends_at, ' ' %> 96

11 <div class='input-group date datetime-picker'> 20 - <%= f.text_field ends_at, class 'form-control', required true %> 21 - <span class='input-group-addon'><i class='fa fa-calendar'></i></span> 22 - </div> 23 - </div> 2 <div class='form-group'> 3 <%= f.submit ' ', class 'btn btn-success' %> 4 </div> 5 <% end %> _fields.html.erb 2 app/views/plan_items/_fields.html.erb (New) 1 <div class='form-group'> 2 <%= f.label name, ' ' %> 3 <%= f.text_field name, class 'form-control', required true %> 16 <div class='form-group'> 17 <%= f.label ends_at, ' ' %> 18 <div class='input-group date datetime-picker'> 19 <%= f.text_field ends_at, class 'form-control', required true %> 20 <span class='input-group-addon'><i class='fa fa-calendar'></i></span> 21 </div> 22 </div> new.html.erb app/views/plan_items/new.html.erb 1 <%= do f %> 2 + <%= render 'fields', f f %> 3 <div class='form-group'> 4 <%= f.submit ' ', class 'btn btn-success' %> 5 </div> 6 <% end %> render 2 { f f } 97

12 8 f f new.html.erb edit.html.erb 2 23 app/views/plan_items/edit.html.erb 1 <%= do f %> 2 - <div class='form-group'> 3 - <%= f.label name, ' ' %> 4 - <%= f.text_field name, class 'form-control', required true %> 17 - <div class='form-group'> 18 - <%= f.label ends_at, ' ' %> 19 - <div class='input-group date datetime-picker'> 20 - <%= f.text_field ends_at, class 'form-control', required true %> 21 - <span class='input-group-addon'><i class='fa fa-calendar'></i></span> 22 - </div> 23 - </div> 2 <div class='form-group'> 3 <%= f.submit ' ', class 'btn btn-success' %> 4 </div> 5 <% end %> edit.html.erb app/views/plan_items/edit.html.erb 1 <%= do f %> 2 + <%= render 'fields', f f %> 3 <div class='form-group'> 4 <%= f.submit ' ', class 'btn btn-success' %> 5 </div> 6 <% end %> 98

13 app/views/plan_items index.html.erb index.html.erb 8 10 app/views/plan_items/index.html.erb 7 <div class='col-xs-4 hidden-md-up text-xs-right'> 8 - <%= link_to [ edit, item ] do %> 9 - <i class='fa fa-pencil-square fa-lg'></i> 10 - <% end %> 8 </div> app/views/plan_items _xs_toolbar.html.erb 6 app/views/plan_items/_xs_toolbar.html.erb (New) 1 <%= link_to [ edit, item ] do %> 2 <i class='fa fa-pencil-square fa-lg'></i> 3 <% end %> index.html.erb app/views/plan_items/index.html.erb 7 <div class='col-xs-4 hidden-md-up text-xs-right'> 8 + <%= render 'xs_toolbar', item item %> 9 </div> index.html.erb

14 8 app/views/plan_items/index.html.erb 17 <div class='col-md-3 hidden-sm-down text-xs-right'> 18 - <%= link_to [ edit, item ], class 'btn btn-secondary btn-sm' do %> 19 - <i class='fa fa-pencil-square'></i> 20 - <% end %> 18 </div> app/views/plan_items _md_toolbar.html.erb 6 app/views/plan_items/_md_toolbar.html.erb (New) 1 <%= link_to [ edit, item ], class 'btn btn-secondary btn-sm' do %> 2 <i class='fa fa-pencil-square'></i> 3 <% end %> index.html.erb app/views/plan_items/index.html.erb 17 <div class='col-md-3 hidden-sm-down text-xs-right'> 18 + <%= render 'md_toolbar', item item %> 19 </div>

15 8.7 app/views/plan_items/show.html.erb 1 <div class='container-fluid plan-item'> 2 <div class='row'> 3 <div class='col-xs-12 hidden-md-up text-xs-right'> 4 <%= link_to plan_items do %> 5 <i class='fa fa-list fa-lg'></i> 6 <% end %> 7 + <%= render 'xs_toolbar', %> 8 </div> 9 <div class='col-md-12 hidden-sm-down text-xs-right'> 10 <%= link_to plan_items, class 'btn btn-secondary btn-sm' do %> 11 <i class='fa fa-list'></i> 12 <% end %> 13 + <%= render 'md_toolbar', %> 14 </div> 15 </div>

6 (1) app.html.eex 28 lib/nano_planner_web/templates/layout/app.html.eex 27 <footer> Oiax Inc <%= this_year() %> Oiax Inc. 29 </footer>

6 (1) app.html.eex 28 lib/nano_planner_web/templates/layout/app.html.eex 27 <footer> Oiax Inc <%= this_year() %> Oiax Inc. 29 </footer> 6 (1) of_today 6.1 Copyright 2017 lib/nano_planner_web/views layout_view.ex this_year/0 lib/nano_planner_web/views/layout_view.ex 1 defmodule NanoPlannerWeb.LayoutView do 2 use NanoPlannerWeb, view 3 +