# 4. Criar um Menu para Aplicação em Ruby on Rails ## 1. **Criar uma menu de navegação para a página inicial** ![Tela de login](https://2.bp.blogspot.com/-1Y2KGM7EWDI/WxgyiJH8YoI/AAAAAAAABnk/bFUWSjOfwMcRPlSGD5is5cAlvr5jHOb7wCLcBGAs/s640/Menu01.png) **Abrir o projeto no programa Sublime 3** ```ruby - Criar no projeto uma nova pasta /app/views/shared/ - Criar um novo arquivo /app/views/shared/ _navbar.html.erb ``` Acessar a página e copiar o código abaixo neste arquivo \_navbar.html.erb: [**`http://getbootstrap.com/examples/navbar-static-top/`**](http://getbootstrap.com/examples/navbar-static-top/) ```markup ``` **## Alterar o arquivo app/views/layouts/application.html.erb:** ```markup ... <%= render 'shared/navbar' %>

<%= notice %>

<%= alert %>

<%= yield %>
``` > Salvar o arquivo **#Iniciar o servidor** `C:\Projetos\computacaonapratica>rails s`
```bash => Booting WEBrick => Rails 4.2.8 application starting in development on http://localhost:3000 => Run `rails server -h` for more startup options => Ctrl-C to shutdown server [2017-09-13 05:16:16] INFO WEBrick 1.3.1 [2017-09-13 05:16:16] INFO ruby 2.2.6 (2016-11-15) [x64-mingw32] [2017-09-13 05:16:16] INFO WEBrick::HTTPServer#start: pid=18536 port=3000 ``` Abrir o navegador em ## **2. Alterar o menu de navegação** ```ruby Abrir o arquivo /app/views/shared/_navbar.html.erb ``` Atualizar a página no navegador em para ver as mudanças. \ \&#xNAN;**#Parar o servidor** ![Menu página inicial](https://4.bp.blogspot.com/-lLtSZlhMTis/WxgyiISdriI/AAAAAAAABno/4EpXF5UM6EEHimt98i12etndQj-xqSQPQCLcBGAs/s640/Menu02.png) ```bash Ctrl + c Started GET "/" for ::1 at 2017-09-13 05:17:29 -0300 Processing by Rails::WelcomeController#index as HTML Rendered C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.8/lib/rails/templates/rails/welcome/index.html.erb (25.7ms) Completed 200 OK in 272ms (Views: 250.5ms | ActiveRecord: 0.0ms) [2017-09-13 05:19:46] INFO going to shutdown ... [2017-09-13 05:19:46] INFO WEBrick::HTTPServer#start done. Exiting Deseja finalizar o arquivo em lotes (S/N)? S C:\Projetos\computacaonapratica> ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://carolsprak.gitbook.io/ruby-on-rails-para-iniciantes/criar-um-menu-para-aplicacao-em-ruby-on-rails.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.