Chapter 3

This is the start of creating a micro-blogging site.
First, the usual process of:

• rails new
• (edit Gemfile)
• bundle install --without production
• bundle update
• git init
• git add -A
• git commit -m "Initialize repository"
• (edit readme file, rename, commit change)
• (the below commands create a new bitbucket repository)
• git remote add origin git@bitbucket.org:<username>/sample_app.git
• git push -u origin --all
• (add in hello by adding hello function to application_controller file and adding "root application#hello")
• git commit -am "Add hello"
• heroku create
• git push heroku master
• (create a new branch)
• git checkout master
• git checkout -b static-pages
• rails generate controller StaticPages home help
• (add newly created files to repository)
• git add -A
• git commit -m "add a static pages controller"
• git push -u origin static-pages
• bundle exec rake test (checks that tests added automatically pass)
• (add about test)
• test "should get about" do \\ get :about \\ assert_response :success \\ end
• (To ensure test passes)
• add a line in routes/config.rb: get 'static_pages/about'
• add a line in static pages controller: def about // end
• "touch app/views/static_pages/about.html.erb"
  (create an about.html.erb page in app/views/static_pages/)
• add html to about page
• (Systematic steps to prevent DRY: Don't repeat yourself)
• as a learning step, to see that things must be done repetitively without it, rename application.html.erb (i.e. rename page template)
• for each of the erb pages, add <% provide(:title, "preferredtext") %> at the top. and add <%= yield(:title) %> in the original title page.
• rename back application.html.erb, and edit it to include the html, title, head tags (which should be deleted from the other erb files), as well as the <%= yield(:title) %> line
• Edit config/routes.rb to have "root 'staticpages#home'" (remember to delete existing root)
• (the usual)
• git add -A
• git commit -m "finished static pages"
• git checkout master
• git merge static-pages
• git push
• bundle exec rake test
• git push heroku