Below is the original README description outlined by Michael Hartl outlined in the 4th edition of his book. There are notable resolutions that distinguish my sample application from others. I have listed them to benefit others who may utilize my code as a resource for troubleshooting. Moreover, I expanded on his sample application with additional components ^{1 2}.

Issue	Resolution
Clear input field after dismissing alert box	var micropost_picture = $("#micropost_picture"); micropost_picture.val(""); in _micropost_form.html.erb
failed micropost submission	<% if @feed_items.any? %> <ol class="microposts"> <%= render @feed_items %> </ol> <%= will_paginate @feed_items %> <% else %> <div class="alert alert-info"> Others are excited to view your first micropost displayed in your feed! </div> <% end %> in _feed.html.erb
	def create @micropost = current_user.microposts.build(micropost_params) if @micropost.save flash[:success] = "Micropost created!" redirect_to root_path else flash[:danger] = "Micropost was not created successfully" redirect_back(fallback_location: root_path) end end in microposts_controller.rb
	assert_not flash.empty? on line 18 in microposts_interface_test.rb file for the integration test
	Deleting the <%= render 'shared/error_messages', object: f.object %> atop the _micropost_form.html.erb in the shared folder
site blows up after refresh after a failed micropost submission	get '*path', to: redirect('/') in routes.rb
mobile view non-existent	<meta name="viewport" content="width=device-width, initial-scale=1"> in application.html.erb & @media screen and (min-width: 768px) { body { padding-top: 70px; } } in application.scss

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Ruby on Rails Tutorial Sample Application 4th Edition

This is the sample application for Ruby on Rails Tutorial: Learn Web Development with Rails, 4th edition by Michael Hartl.

License

All source code in the Ruby on Rails Tutorial is available jointly under the MIT License and the Beerware License. See License.md for details.

Getting started

To get started with the app, clone the repo and then install the needed gems:

$ bundle install --without production

Next, migrate the database:

$ rails db:migrate

Finally, run the test suite to verify that everything is working correctly:

$ rails test

If the test suite passes, you'll be ready to run the app on http://localhost:3000.

$ rails s

For more information, see the Ruby on Rails Tutorial book.

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1: Tag cloud inspired by Bala Paranj.
Referenced this article.
Also, includes some seed data for fake tags.

    list = %w[happy sad angry fun dope humble chill wack nice evil rad puppy]
    list.each { |elem| Tag.create(name: elem) }
    microposts = Micropost.first(100)
    10.times do
        microposts.each do |post|
          rand_tag = Tag.order(Arel.sql('random()')).first
          if post.tag_list.delete(' ').split(',').include?(rand_tag.name)
            next
          else
            new_tagging = post.taggings.build(tag_id: rand_tag.id)
            new_tagging.save if new_tagging.valid?
          end
        end
    end

↩

2: Favicon through the installation of the rails_real_favicon gem.↩

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Screenshots

Desktop:

Mobile:

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Screen Capture