_form.html.slim

= simple_form_for(@category) do |f|
  = f.error_notification

  .form-inputs
    = f.input :name

  .form-actions
    = f.button :submit, class: 'btn btn-primary'

application.html.slim

doctype html
html
  head
    meta name="viewport" content="width=device-width, initial-scale=1.0"
    title Paporeto
    = stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true
    = csrf_meta_tags

    /[if lt IE 9]
      = javascript_include_tag "html5shiv", "data-turbolinks-track" => true
      = javascript_include_tag "respond.min", "data-turbolinks-track" => true
  body

    .navbar.navbar-inverse.navbar-fixed-top
     .container
       .navbar-header
         a class="navbar-brand" href="/articles" Paporeto
       .navbar-collapse
         ul.nav.navbar-nav
           li.active 
             a href="/articles" Artigos
           li
             a href="/categories" Categorias

    .container
      = yield
    = javascript_include_tag "application", "data-turbolinks-track" => true

edit.html.slim

h1 Editar categoria

== render 'form'

index.html.slim

h1 Categorias

table.table.table-striped
  thead
    tr
      th Nome
      th
  
  tbody
    - @categories.each do |category|
      tr
        td = category.name
        td 
          .btn-group.pull-right
            = link_to 'Editar', edit_category_path(category), class: 'btn btn-default btn-sm'
            = link_to 'Excluir', category, :confirm => 'Tem certeza?', :method => :delete, class: 'btn btn-default btn-sm'

br

= link_to 'Nova Categoria', new_category_path, class: 'btn btn-primary'

new.html.slim

h1 Nova categoria

== render 'form'

simple_form.pt-br.yml

pt-BR:
  simple_form:
    yes: Sim
    no: Não
    required:
      text: obrigatório
      mark: "*"
      # You can uncomment the line below if you need to overwrite the whole required html.
      # When using html, text and mark won't be used.
      # html: "<abbr title="required">*</abbr>"
    error_notification:
      default_message: "Por favor, corrija os problemas abaixo:"
    # Labels and hints examples
    labels:
      defaults:
        password: Senha
        name: Nome
      article:
        title: Título
        body: Texto
        published_at: Publicado em
    # hints:
    #   defaults:
    #     password: 'Mínimo de 8 caracteres.'
    # placeholders:
    #   defaults:
    #     name: 'Nome'
    #     password: '****'
  helpers:
    submit:
      create: 'Criar'
      update: 'Editar'
      article:
        create: 'Criar artigo'
        update: 'Editar artigo'

terminal

rails g scaffold category name
rake db:migrate