Done

.gitignore

+# See https://help.github.com/articles/ignoring-files for more about ignoring files.
+#
+# If you find yourself ignoring temporary files generated by your text editor
+# or operating system, you probably want to add a global ignore instead:
+#   git config --global core.excludesfile '~/.gitignore_global'
+
+# Ignore bundler config.
+/.bundle
+
+# Ignore the default SQLite database.
+/db/*.sqlite3
+/db/*.sqlite3-journal
+
+# Ignore all logfiles and tempfiles.
+/log/*
+!/log/.keep
+/tmp

Gemfile

+source 'https://rubygems.org'
+
+
+# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
+gem 'rails', '4.2.5.1'
+# Use sqlite3 as the database for Active Record
+gem 'mysql2'
+# Use SCSS for stylesheets
+gem 'sass-rails', '~> 5.0'
+# Use Uglifier as compressor for JavaScript assets
+gem 'uglifier', '>= 1.3.0'
+# Use CoffeeScript for .coffee assets and views
+gem 'coffee-rails', '~> 4.1.0'
+# See https://github.com/rails/execjs#readme for more supported runtimes
+# gem 'therubyracer', platforms: :ruby
+
+# Use jquery as the JavaScript library
+gem 'jquery-rails'
+# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
+gem 'turbolinks'
+# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
+gem 'jbuilder', '~> 2.0'
+# bundle exec rake doc:rails generates the API under doc/api.
+gem 'sdoc', '~> 0.4.0', group: :doc
+gem 'will_paginate'
+
+# Use ActiveModel has_secure_password
+# gem 'bcrypt', '~> 3.1.7'
+
+# Use Unicorn as the app server
+# gem 'unicorn'
+
+# Use Capistrano for deployment
+# gem 'capistrano-rails', group: :development
+
+group :development, :test do
+  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
+  gem 'byebug'
+  gem 'better_errors'
+end
+
+group :development do
+  # Access an IRB console on exception pages or by using <%= console %> in views
+  gem 'web-console', '~> 2.0'
+end
+
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionmailer (4.2.5.1)
+      actionpack (= 4.2.5.1)
+      actionview (= 4.2.5.1)
+      activejob (= 4.2.5.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.5.1)
+      actionview (= 4.2.5.1)
+      activesupport (= 4.2.5.1)
+      rack (~> 1.6)
+      rack-test (~> 0.6.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (4.2.5.1)
+      activesupport (= 4.2.5.1)
+      builder (~> 3.1)
+      erubis (~> 2.7.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    activejob (4.2.5.1)
+      activesupport (= 4.2.5.1)
+      globalid (>= 0.3.0)
+    activemodel (4.2.5.1)
+      activesupport (= 4.2.5.1)
+      builder (~> 3.1)
+    activerecord (4.2.5.1)
+      activemodel (= 4.2.5.1)
+      activesupport (= 4.2.5.1)
+      arel (~> 6.0)
+    activesupport (4.2.5.1)
+      i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    arel (6.0.3)
+    better_errors (2.1.1)
+      coderay (>= 1.0.0)
+      erubis (>= 2.6.6)
+      rack (>= 0.9.0)
+    binding_of_caller (0.7.2)
+      debug_inspector (>= 0.0.1)
+    builder (3.2.2)
+    byebug (9.0.5)
+    coderay (1.1.1)
+    coffee-rails (4.1.1)
+      coffee-script (>= 2.2.0)
+      railties (>= 4.0.0, < 5.1.x)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.10.0)
+    concurrent-ruby (1.0.2)
+    debug_inspector (0.0.2)
+    erubis (2.7.0)
+    execjs (2.7.0)
+    globalid (0.3.6)
+      activesupport (>= 4.1.0)
+    i18n (0.7.0)
+    jbuilder (2.5.0)
+      activesupport (>= 3.0.0, < 5.1)
+      multi_json (~> 1.2)
+    jquery-rails (4.1.1)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
+      thor (>= 0.14, < 2.0)
+    json (1.8.3)
+    loofah (2.0.3)
+      nokogiri (>= 1.5.9)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_portile2 (2.1.0)
+    minitest (5.9.0)
+    multi_json (1.12.1)
+    mysql2 (0.4.4-x86-mingw32)
+    nokogiri (1.6.8-x86-mingw32)
+      mini_portile2 (~> 2.1.0)
+      pkg-config (~> 1.1.7)
+    pkg-config (1.1.7)
+    rack (1.6.4)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (4.2.5.1)
+      actionmailer (= 4.2.5.1)
+      actionpack (= 4.2.5.1)
+      actionview (= 4.2.5.1)
+      activejob (= 4.2.5.1)
+      activemodel (= 4.2.5.1)
+      activerecord (= 4.2.5.1)
+      activesupport (= 4.2.5.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.2.5.1)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.7)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.3)
+      loofah (~> 2.0)
+    railties (4.2.5.1)
+      actionpack (= 4.2.5.1)
+      activesupport (= 4.2.5.1)
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (11.2.2)
+    rdoc (4.2.2)
+      json (~> 1.4)
+    sass (3.4.22)
+    sass-rails (5.0.5)
+      railties (>= 4.0.0, < 6)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
+    sdoc (0.4.1)
+      json (~> 1.7, >= 1.7.7)
+      rdoc (~> 4.0)
+    sprockets (3.6.3)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.1.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    thor (0.19.1)
+    thread_safe (0.3.5)
+    tilt (2.0.5)
+    turbolinks (5.0.0)
+      turbolinks-source (~> 5)
+    turbolinks-source (5.0.0)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
+    tzinfo-data (1.2016.5)
+      tzinfo (>= 1.0.0)
+    uglifier (3.0.0)
+      execjs (>= 0.3.0, < 3)
+    web-console (2.3.0)
+      activemodel (>= 4.0)
+      binding_of_caller (>= 0.7.2)
+      railties (>= 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+    will_paginate (3.1.0)
+
+PLATFORMS
+  x86-mingw32
+
+DEPENDENCIES
+  better_errors
+  byebug
+  coffee-rails (~> 4.1.0)
+  jbuilder (~> 2.0)
+  jquery-rails
+  mysql2
+  rails (= 4.2.5.1)
+  sass-rails (~> 5.0)
+  sdoc (~> 0.4.0)
+  turbolinks
+  tzinfo-data
+  uglifier (>= 1.3.0)
+  web-console (~> 2.0)
+  will_paginate
+
+BUNDLED WITH
+   1.10.4

README.rdoc

+== README
+
+This README would normally document whatever steps are necessary to get the
+application up and running.
+
+Things you may want to cover:
+
+* Ruby version
+
+* System dependencies
+
+* Configuration
+
+* Database creation
+
+* Database initialization
+
+* How to run the test suite
+
+* Services (job queues, cache servers, search engines, etc.)
+
+* Deployment instructions
+
+* ...
+
+
+Please feel free to use a different markup language if you do not plan to run
+<tt>rake doc:app</tt>.

Rakefile

+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+
+Rails.application.load_tasks

app/assets/javascripts/application.js

+// This is a manifest file that'll be compiled into application.js, which will include all the files
+// listed below.
+//
+// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
+// or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path.
+//
+// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
+// compiled file.
+//
+// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
+// about supported directives.
+//
+//= require jquery
+//= require jquery_ujs
+//= require turbolinks
+//= require_tree .

app/assets/javascripts/npm.js

+// This file is autogenerated via the `commonjs` Grunt task. You can require() this file in a CommonJS environment.
+require('../../js/transition.js')
+require('../../js/alert.js')
+require('../../js/button.js')
+require('../../js/carousel.js')
+require('../../js/collapse.js')
+require('../../js/dropdown.js')
+require('../../js/modal.js')
+require('../../js/tooltip.js')
+require('../../js/popover.js')
+require('../../js/scrollspy.js')
+require('../../js/tab.js')
+require('../../js/affix.js')
\ No newline at end of file

app/assets/javascripts/welcome.coffee

+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/application.css

+/*
+ * This is a manifest file that'll be compiled into application.css, which will include all the files
+ * listed below.
+ *
+ * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
+ * or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path.
+ *
+ * You're free to add application-wide styles to this file and they'll appear at the bottom of the
+ * compiled file so the styles you add here take precedence over styles defined in any styles
+ * defined in the other CSS/SCSS files in this directory. It is generally better to create a new
+ * file per style scope.
+ *
+ *= require_tree .
+ *= require_self
+ */

app/assets/stylesheets/carousel.css

+/* GLOBAL STYLES
+-------------------------------------------------- */
+/* Padding below the footer and lighter body text */
+
+body {
+  padding-bottom: 40px;
+  color: #5a5a5a;
+}
+
+
+/* CUSTOMIZE THE NAVBAR
+-------------------------------------------------- */
+
+/* Special class on .container surrounding .navbar, used for positioning it into place. */
+.navbar-wrapper {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  z-index: 20;
+}
+
+/* Flip around the padding for proper display in narrow viewports */
+.navbar-wrapper > .container {
+  padding-right: 0;
+  padding-left: 0;
+}
+.navbar-wrapper .navbar {
+  padding-right: 15px;
+  padding-left: 15px;
+}
+.navbar-wrapper .navbar .container {
+  width: auto;
+}
+
+
+/* CUSTOMIZE THE CAROUSEL
+-------------------------------------------------- */
+
+/* Carousel base class */
+.carousel {
+  height: 500px;
+  margin-bottom: 60px;
+}
+/* Since positioning the image, we need to help out the caption */
+.carousel-caption {
+  z-index: 10;
+}
+
+/* Declare heights because of positioning of img element */
+.carousel .item {
+  height: 500px;
+  background-color: #777;
+}
+.carousel-inner > .item > img {
+  position: absolute;
+  top: 0;
+  left: 0;
+  min-width: 100%;
+  height: 500px;
+}
+
+
+/* MARKETING CONTENT
+-------------------------------------------------- */
+
+/* Center align the text within the three columns below the carousel */
+.marketing .col-lg-4 {
+  margin-bottom: 20px;
+  text-align: center;
+}
+.marketing h2 {
+  font-weight: normal;
+}
+.marketing .col-lg-4 p {
+  margin-right: 10px;
+  margin-left: 10px;
+}
+
+
+/* Featurettes
+------------------------- */
+
+.featurette-divider {
+  margin: 80px 0; /* Space out the Bootstrap <hr> more */
+}
+
+/* Thin out the marketing headings */
+.featurette-heading {
+  font-weight: 300;
+  line-height: 1;
+  letter-spacing: -1px;
+}
+
+
+/* RESPONSIVE CSS
+-------------------------------------------------- */
+
+@media (min-width: 768px) {
+  /* Navbar positioning foo */
+  .navbar-wrapper {
+    margin-top: 20px;
+  }
+  .navbar-wrapper .container {
+    padding-right: 15px;
+    padding-left: 15px;
+  }
+  .navbar-wrapper .navbar {
+    padding-right: 0;
+    padding-left: 0;
+  }
+
+  /* The navbar becomes detached from the top, so we round the corners */
+  .navbar-wrapper .navbar {
+    border-radius: 4px;
+  }
+
+  /* Bump up size of carousel content */
+  .carousel-caption p {
+    margin-bottom: 20px;
+    font-size: 21px;
+    line-height: 1.4;
+  }
+
+  .featurette-heading {
+    font-size: 50px;
+  }
+}
+
+@media (min-width: 992px) {
+  .featurette-heading {
+    margin-top: 120px;
+  }
+}
+#form
+{
+  margin: auto , 0;
+}
+

app/assets/stylesheets/welcome.scss

+// Place all the styles related to the welcome controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/application_controller.rb

+class ApplicationController < ActionController::Base
+  # Prevent CSRF attacks by raising an exception.
+  # For APIs, you may want to use :null_session instead.
+  protect_from_forgery with: :exception
+end

app/controllers/welcome_controller.rb

+class WelcomeController < ApplicationController
+	helper_method :get_average
+	def index
+		 @users = StudentGrade.all.paginate(:page => params[:page], :per_page => 4)
+	end
+
+	def addstudent
+  end
+
+  def addstudent_post
+    first_name = params[:inputFirstName]
+    last_name = params[:inputLastName]
+    english_grade = params[:inputEnglish]
+    math_grade = params[:inputMath]
+    science_grade = params[:inputScience]
+    history_grade = params[:inputHistory]
+
+    if !first_name.empty? && !last_name.empty?
+      newStudentGrade = StudentGrade.new
+      newStudentGrade.first_name = first_name
+      newStudentGrade.last_name = last_name
+      newStudentGrade.english_grade  = english_grade 
+      newStudentGrade.math_grade = math_grade
+      newStudentGrade.science_grade = science_grade
+      newStudentGrade.history_grade = history_grade
+      newStudentGrade.save
+
+     
+      redirect_to '/'
+    else
+      @error = 'yes'
+      render 'addstudent'
+    end
+end
+  def deletestudent
+    id = params[:id]
+    @user = StudentGrade.find(id.to_i)
+    @user.destroy
+    redirect_to '/'
+end
+def editstudent
+	 id = params[:id]
+    if !id.nil? 
+      @user = StudentGrade.find(id)
+    end
+end
+ def editstudent_post
+ 	id = params[:first_name]
+   first_name = params[:inputFirstName]
+    last_name = params[:inputLastName]
+    english_grade = params[:inputEnglish]
+    math_grade = params[:inputMath]
+    science_grade = params[:inputScience]
+    history_grade = params[:inputHistory]
+
+    @user = StudentGrade.find(id.to_i)
+
+    if !first_name.empty? && !last_name.empty?
+      @user.first_name = first_name
+      @user.last_name = last_name
+      @user.english_grade  = english_grade 
+      @user.math_grade = math_grade
+      @user.science_grade = science_grade
+      @user.history_grade = history_grade
+      @user.save
+
+     
+      redirect_to '/'
+    else
+      @error = 'yes'
+      render 'editstudent'
+    end
+  end
+  def get_average(user)
+
+  count = 4
+  sum = 0
+  sum = user.english_grade+user.science_grade+user.history_grade+user.math_grade
+  return sum/count.to_f
+  end
+end
+

app/helpers/application_helper.rb

+module ApplicationHelper
+end

app/helpers/welcome_helper.rb

+module WelcomeHelper
+end

app/models/student_grade.rb

+class StudentGrade < ActiveRecord::Base
+end

app/views/layouts/application.html.erb

+<!DOCTYPE html>
+<html>
+<head>
+  <title>Lab2</title>
+  <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
+  <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
+  <%= csrf_meta_tags %>
+</head>
+<body>
+
+<%= yield %>
+
+</body>
+</html>

app/views/layouts/offcanvas.css

+/*
+ * Style tweaks
+ * --------------------------------------------------
+ */
+html,
+body {
+  overflow-x: hidden; /* Prevent scroll on narrow devices */
+}
+body {
+  padding-top: 70px;
+}
+footer {
+  padding: 30px 0;
+}
+
+/*
+ * Off Canvas
+ * --------------------------------------------------
+ */
+@media screen and (max-width: 767px) {
+  .row-offcanvas {
+    position: relative;
+    -webkit-transition: all .25s ease-out;
+         -o-transition: all .25s ease-out;
+            transition: all .25s ease-out;
+  }
+
+  .row-offcanvas-right {
+    right: 0;
+  }
+
+  .row-offcanvas-left {
+    left: 0;
+  }
+
+  .row-offcanvas-right
+  .sidebar-offcanvas {
+    right: -50%; /* 6 columns */
+  }
+
+  .row-offcanvas-left
+  .sidebar-offcanvas {
+    left: -50%; /* 6 columns */
+  }
+
+  .row-offcanvas-right.active {
+    right: 50%; /* 6 columns */
+  }
+
+  .row-offcanvas-left.active {
+    left: 50%; /* 6 columns */
+  }
+
+  .sidebar-offcanvas {
+    position: absolute;
+    top: 0;
+    width: 50%; /* 6 columns */
+  }
+  
+}

app/views/layouts/offcanvas.js

+$(document).ready(function () {
+  $('[data-toggle="offcanvas"]').click(function () {
+    $('.row-offcanvas').toggleClass('active')
+  });
+});
\ No newline at end of file

app/views/welcome/addstudent.html.erb

+
+    <nav class="navbar navbar-fixed-top navbar-inverse">
+      <div class="container">
+        <div class="navbar-header">
+          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
+            <span class="sr-only">Toggle navigation</span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+          </button>
+          <a class="navbar-brand" href="/">Grades</a>
+        </div>
+        <div id="navbar" class="collapse navbar-collapse">
+          <ul class="nav navbar-nav">
+            <li ><a href="/">List</a></li>
+            <li class="active"><a href="addstudent">Add</a></li>
+          </ul>
+        </div><!-- /.nav-collapse -->
+      </div><!-- /.container -->
+    </nav><!-- /.navbar -->
+    <div class="container">
+	<div class="page-header">
+        <h1>Add Student</h1>
+    </div>
+	<% if !@error.nil? %>
+	<div class="row">
+        <div class="col-md-6">
+    		<div class="alert alert-danger" role="alert">
+        <strong>Please enter required data</strong>
+      	</div>
+      	</div>
+   	</div>
+    <% end %>
+	<div class="row" >
+        <div class="col-md-4" id ="form">
+		<%= form_tag("/addstudent", method: "post", class: 'form-signin') do %>
+        <h2 class="form-signin-heading">Please enter student data</h2>
+        <label for="inputFirst" class="sr-only">First Name</label>
+        <input type="text" name="inputFirstName" id="inputFirstName" class="form-control" placeholder="First Name" maxlength="20">
+         <label for="inputLast" class="sr-only">Last Name</label>
+        <input type="text" name="inputLastName" id="inputLastName" class="form-control" placeholder="Last Name" maxlength="20">
+         <label for="inputEnglish" class="sr-only">English Grade</label>
+        <input type="number" name="inputEnglish" id="inputEnglish" class="form-control" placeholder="English Grade" maxlength="20">
+        <label for="inputMath" class="sr-only">Math Grade</label>
+        <input type="number" name="inputMath" id="inputMath" class="form-control" placeholder="Math Grade" maxlength="20">   
+        <label for="inputScience" class="sr-only">Science Grade</label>
+        <input type="number" name="inputScience" id="inputScience" class="form-control" placeholder="Science Grade" maxlength="20">   
+        <label for="inputFirst" class="sr-only">History Grade</label>
+        <input type="number" name="inputHistory" id="inputHistory" class="form-control" placeholder="History Grade" maxlength="20">   
+        
+
+        <input class="btn btn-lg btn-primary btn-block" type="submit" value="Submit"></input>
+      	<% end %>
+    		</div>
+    		
+	</div>
+	</div>

app/views/welcome/editstudent.html.erb

+   <nav class="navbar navbar-fixed-top navbar-inverse">
+      <div class="container">
+        <div class="navbar-header">
+          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
+            <span class="sr-only">Toggle navigation</span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+          </button>
+          <a class="navbar-brand" href="/">Grades</a>
+        </div>
+        <div id="navbar" class="collapse navbar-collapse">
+          <ul class="nav navbar-nav">
+            <li ><a href="/">List</a></li>
+            <li ><a href="addstudent">Add</a></li>
+          </ul>
+        </div><!-- /.nav-collapse -->
+      </div><!-- /.container -->
+    </nav><!-- /.navbar -->
+  <div class="container">
+	<div class="page-header">
+        <h1>Edit Student</h1>
+    </div>
+	<% if !@error.nil? %>
+	<div class="row">
+        <div class="col-md-6">
+    		<div class="alert alert-danger" role="alert">
+        <strong>Please enter required data</strong>
+      	</div>
+      	</div>
+   	</div>
+    <% end %>
+	<div class="row">
+        <div class="col-md-4">
+		<%= form_tag("/editstudent", method: "post", class: 'form-signin') do %>
+      <h2 class="form-signin-heading">Please enter student data</h2>
+       <%= hidden_field(nil, :first_name, :value => @user.id) %>
+        <label for="inputFirst" class="sr-only">First Name</label>
+        <input type="text" name="inputFirstName" id="inputFirstName" class="form-control" placeholder="First Name" maxlength="20" value="<%=@user.first_name%>">
+         <label for="inputLast" class="sr-only">Last Name</label>
+        <input type="text" name="inputLastName" id="inputLastName" class="form-control" placeholder="Last Name" maxlength="20" value="<%=@user.last_name%>">
+         <label for="inputEnglish" class="sr-only">English Grade</label>
+        <input type="number" name="inputEnglish" id="inputEnglish" class="form-control" placeholder="English Grade" maxlength="20" value="<%=@user.english_grade%>">
+        <label for="inputMath" class="sr-only">Math Grade</label>
+        <input type="number" name="inputMath" id="inputMath" class="form-control" placeholder="Math Grade" maxlength="20" value="<%=@user.math_grade%>">   
+        <label for="inputScience" class="sr-only">Science Grade</label>
+        <input type="number" name="inputScience" id="inputScience" class="form-control" placeholder="Science Grade" maxlength="20" value="<%=@user.science_grade%>">   
+        <label for="inputFirst" class="sr-only">History Grade</label>
+        <input type="number" name="inputHistory" id="inputHistory" class="form-control" placeholder="History Grade" maxlength="20" value="<%=@user.history_grade%>">   
+        
+
+        <input class="btn btn-lg btn-primary btn-block" type="submit" value="Submit"></input>
+        <% end %>
+    		</div>
+    		
+	</div>
+	</div>

app/views/welcome/index.html.erb

+
+    <nav class="navbar navbar-fixed-top navbar-inverse">
+      <div class="container">
+        <div class="navbar-header">
+          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
+            <span class="sr-only">Toggle navigation</span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+          </button>
+          <a class="navbar-brand" href="/">Grades</a>
+        </div>
+        <div id="navbar" class="collapse navbar-collapse">
+          <ul class="nav navbar-nav">
+            <li class="active"><a href="/">List</a></li>
+            <li><a href="addstudent">Add</a></li>
+          </ul>
+        </div><!-- /.nav-collapse -->
+      </div><!-- /.container -->
+    </nav><!-- /.navbar -->
+
+    <div class="container">
+  <div class="page-header">
+        <h1>List of Grades</h1>
+    </div>
+  <div class="row">
+        <div class="col-md-12">
+          <table class="table table-striped">
+            <thead>
+              <tr>
+              <th>Last Name</th>
+                <th>First Name</th>
+                <th>English Grade</th>
+                <th>Math Grade</th>
+                <th>Science Grade</th>
+                <th>History Grade</th>
+              </tr>
+            </thead>
+            <tbody>
+      <%@users.each do |item|%>
+              <tr>
+              <td><%=item.last_name%></td>
+                <td><%=item.first_name%></td>
+                <td><%=item.english_grade%></td>
+                <td><%=item.math_grade%></td>
+                <td><%=item.science_grade%></td>
+                <td><%=item.history_grade%></td>
+             <!--<td><%=@users.average((item.english_grade + item.history_grade + item.science_grade + item.math_grade)/4).round(2) %></td>-->
+                <td><%= get_average(item)%></td>
+              
+                <td><%= link_to('Edit', 'editstudent/' + item.id.to_s) %></td>
+                <td><%= link_to('Delete', 'deletestudent/' + item.id.to_s) %></td>
+              </tr>
+      <%end%>
+            </tbody>
+          </table>
+          <%= will_paginate @users %>
+        </div>
+      </div>
+    </div>
+
+   
+
+      <hr>
+
+      <footer>
+        <p>&copy; 2015 Company, Inc.</p>
+      </footer>
+
+    </div><!--/.container-->
+
+
+    <!-- Bootstrap core JavaScript
+    ================================================== -->
+    <!-- Placed at the end of the document so the pages load faster -->
+  

bin/bundle

+#!/usr/bin/env ruby.exe
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+load Gem.bin_path('bundler', 'bundle')

bin/rails

+#!/usr/bin/env ruby.exe
+APP_PATH = File.expand_path('../../config/application', __FILE__)
+require_relative '../config/boot'
+require 'rails/commands'

bin/rake

+#!/usr/bin/env ruby.exe
+require_relative '../config/boot'
+require 'rake'
+Rake.application.run

bin/setup

+#!/usr/bin/env ruby.exe
+require 'pathname'
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+
+Dir.chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file:
+
+  puts "== Installing dependencies =="
+  system "gem install bundler --conservative"
+  system "bundle check || bundle install"
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?("config/database.yml")
+  #   system "cp config/database.yml.sample config/database.yml"
+  # end
+
+  puts "\n== Preparing database =="
+  system "bin/rake db:setup"
+
+  puts "\n== Removing old logs and tempfiles =="
+  system "rm -f log/*"
+  system "rm -rf tmp/cache"
+
+  puts "\n== Restarting application server =="
+  system "touch tmp/restart.txt"
+end

config.ru

+# This file is used by Rack-based servers to start the application.
+
+require ::File.expand_path('../config/environment', __FILE__)
+run Rails.application

config/application.rb

+require File.expand_path('../boot', __FILE__)
+
+require 'rails/all'
+
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
+Bundler.require(*Rails.groups)
+
+module Lab2Dumaliang
+  class Application < Rails::Application
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+
+    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
+    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
+    # config.time_zone = 'Central Time (US & Canada)'
+
+    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
+    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    # config.i18n.default_locale = :de
+
+    # Do not swallow errors in after_commit/after_rollback callbacks.
+    config.active_record.raise_in_transactional_callbacks = true
+  end
+end

config/boot.rb

+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+
+require 'bundler/setup' # Set up gems listed in the Gemfile.

config/database.yml

+default: &default
+  adapter: mysql2
+  encoding: utf8
+  database: labwork2
+  username: labwork2
+  password: labwork2
+  host: 127.0.0.1
+  port: 3306  
+
+development:
+  <<: *default
+ 
+# Warning: The database defined as "test" will be erased and
+# re-generated from your development database when you run "rake".
+# Do not set this db to the same as development or production.
+test:
+  <<: *default
+ 
+production:
+  <<: *default
+ 
\ No newline at end of file

config/environment.rb

+# Load the Rails application.
+require File.expand_path('../application', __FILE__)
+
+# Initialize the Rails application.
+Rails.application.initialize!

config/environments/development.rb

+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # In the development environment your application's code is reloaded on
+  # every request. This slows down response time but is perfect for development
+  # since you don't have to restart the web server when you make code changes.
+  config.cache_classes = false
+
+  # Do not eager load code on boot.
+  config.eager_load = false
+
+  # Show full error reports and disable caching.
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Don't care if the mailer can't send.
+  config.action_mailer.raise_delivery_errors = false
+
+  # Print deprecation notices to the Rails logger.
+  config.active_support.deprecation = :log
+
+  # Raise an error on page load if there are pending migrations.
+  config.active_record.migration_error = :page_load
+
+  # Debug mode disables concatenation and preprocessing of assets.
+  # This option may cause significant delays in view rendering with a large
+  # number of complex assets.
+  config.assets.debug = true
+
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
+  config.assets.digest = true
+
+  # Adds additional error checking when serving assets at runtime.
+  # Checks for improperly declared sprockets dependencies.
+  # Raises helpful error messages.
+  config.assets.raise_runtime_errors = true
+
+  # Raises error for missing translations
+  # config.action_view.raise_on_missing_translations = true
+end

config/environments/production.rb

+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # Code is not reloaded between requests.
+  config.cache_classes = true
+
+  # Eager load code on boot. This eager loads most of Rails and
+  # your application in memory, allowing both threaded web servers
+  # and those relying on copy on write to perform better.
+  # Rake tasks automatically ignore this option for performance.
+  config.eager_load = true
+
+  # Full error reports are disabled and caching is turned on.
+  config.consider_all_requests_local       = false
+  config.action_controller.perform_caching = true
+
+  # Enable Rack::Cache to put a simple HTTP cache in front of your application
+  # Add `rack-cache` to your Gemfile before enabling this.
+  # For large-scale production use, consider using a caching reverse proxy like
+  # NGINX, varnish or squid.
+  # config.action_dispatch.rack_cache = true
+
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
+
+  # Compress JavaScripts and CSS.
+  config.assets.js_compressor = :uglifier
+  # config.assets.css_compressor = :sass
+
+  # Do not fallback to assets pipeline if a precompiled asset is missed.
+  config.assets.compile = false
+
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
+  config.assets.digest = true
+
+  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
+
+  # Specifies the header that your server uses for sending files.
+  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  # config.force_ssl = true
+
+  # Use the lowest log level to ensure availability of diagnostic information
+  # when problems arise.
+  config.log_level = :debug
+
+  # Prepend all log lines with the following tags.
+  # config.log_tags = [ :subdomain, :uuid ]
+
+  # Use a different logger for distributed setups.
+  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+
+  # Use a different cache store in production.
+  # config.cache_store = :mem_cache_store
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  # config.action_controller.asset_host = 'http://assets.example.com'
+
+  # Ignore bad email addresses and do not raise email delivery errors.
+  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation cannot be found).
+  config.i18n.fallbacks = true
+
+  # Send deprecation notices to registered listeners.
+  config.active_support.deprecation = :notify
+
+  # Use default logging formatter so that PID and timestamp are not suppressed.
+  config.log_formatter = ::Logger::Formatter.new
+
+  # Do not dump schema after migrations.
+  config.active_record.dump_schema_after_migration = false
+end

config/environments/test.rb

+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # The test environment is used exclusively to run your application's
+  # test suite. You never need to work with it otherwise. Remember that
+  # your test database is "scratch space" for the test suite and is wiped
+  # and recreated between test runs. Don't rely on the data there!
+  config.cache_classes = true
+
+  # Do not eager load code on boot. This avoids loading your whole application
+  # just for the purpose of running a single test. If you are using a tool that
+  # preloads Rails for running tests, you may have to set it to true.
+  config.eager_load = false
+
+  # Configure static file server for tests with Cache-Control for performance.
+  config.serve_static_files   = true
+  config.static_cache_control = 'public, max-age=3600'
+
+  # Show full error reports and disable caching.
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Raise exceptions instead of rendering exception templates.
+  config.action_dispatch.show_exceptions = false
+
+  # Disable request forgery protection in test environment.
+  config.action_controller.allow_forgery_protection = false
+
+  # Tell Action Mailer not to deliver emails to the real world.
+  # The :test delivery method accumulates sent emails in the
+  # ActionMailer::Base.deliveries array.
+  config.action_mailer.delivery_method = :test
+
+  # Randomize the order test cases are executed.
+  config.active_support.test_order = :random
+
+  # Print deprecation notices to the stderr.
+  config.active_support.deprecation = :stderr
+
+  # Raises error for missing translations
+  # config.action_view.raise_on_missing_translations = true
+end

config/initializers/assets.rb

+# Be sure to restart your server when you modify this file.
+
+# Version of your assets, change this if you want to expire all your assets.
+Rails.application.config.assets.version = '1.0'
+
+# Add additional assets to the asset load path
+# Rails.application.config.assets.paths << Emoji.images_path
+
+# Precompile additional assets.
+# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
+# Rails.application.config.assets.precompile += %w( search.js )

config/initializers/backtrace_silencers.rb

+# Be sure to restart your server when you modify this file.
+
+# You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
+# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
+# Rails.backtrace_cleaner.remove_silencers!

config/initializers/cookies_serializer.rb

+# Be sure to restart your server when you modify this file.
+
+Rails.application.config.action_dispatch.cookies_serializer = :json

config/initializers/filter_parameter_logging.rb

+# Be sure to restart your server when you modify this file.
+
+# Configure sensitive parameters which will be filtered from the log file.
+Rails.application.config.filter_parameters += [:password]

config/initializers/inflections.rb

+# Be sure to restart your server when you modify this file.
+
+# Add new inflection rules using the following format. Inflections
+# are locale specific, and you may define rules for as many different
+# locales as you wish. All of these examples are active by default:
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
+#   inflect.plural /^(ox)$/i, '\1en'
+#   inflect.singular /^(ox)en/i, '\1'
+#   inflect.irregular 'person', 'people'
+#   inflect.uncountable %w( fish sheep )
+# end
+
+# These inflection rules are supported but not enabled by default:
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
+#   inflect.acronym 'RESTful'
+# end

config/initializers/mime_types.rb

+# Be sure to restart your server when you modify this file.
+
+# Add new mime types for use in respond_to blocks:
+# Mime::Type.register "text/richtext", :rtf

config/initializers/session_store.rb

+# Be sure to restart your server when you modify this file.
+
+Rails.application.config.session_store :cookie_store, key: '_lab2_dumaliang_session'

config/initializers/wrap_parameters.rb

+# Be sure to restart your server when you modify this file.
+
+# This file contains settings for ActionController::ParamsWrapper which
+# is enabled by default.
+
+# Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
+ActiveSupport.on_load(:action_controller) do
+  wrap_parameters format: [:json] if respond_to?(:wrap_parameters)
+end
+
+# To enable root element in JSON for ActiveRecord objects.
+# ActiveSupport.on_load(:active_record) do
+#  self.include_root_in_json = true
+# end

config/locales/en.yml

+# Files in the config/locales directory are used for internationalization
+# and are automatically loaded by Rails. If you want to use locales other
+# than English, add the necessary files in this directory.
+#
+# To use the locales, use `I18n.t`:
+#
+#     I18n.t 'hello'
+#
+# In views, this is aliased to just `t`:
+#
+#     <%= t('hello') %>
+#
+# To use a different locale, set it with `I18n.locale`:
+#
+#     I18n.locale = :es
+#
+# This would use the information in config/locales/es.yml.
+#
+# To learn more, please read the Rails Internationalization guide
+# available at http://guides.rubyonrails.org/i18n.html.
+
+en:
+  hello: "Hello world"

config/routes.rb

+Rails.application.routes.draw do
+
+  root 'welcome#index'
+
+  get 'signin' => 'welcome#signin'
+  post 'signin' => 'welcome#signin'
+  get 'random' => 'welcome#random'
+  post 'random' => 'welcome#random'
+  get 'quiz' => 'welcome#quiz'
+  post 'quiz' => 'welcome#quiz_answer'
+  
+  get 'addstudent' => 'welcome#addstudent'
+  post 'addstudent' => 'welcome#addstudent_post'
+  get 'editstudent/:id' => 'welcome#editstudent'
+  post 'editstudent' => 'welcome#editstudent_post'
+  get 'deletestudent/:id' => 'welcome#deletestudent'
+end

config/secrets.yml

+# Be sure to restart your server when you modify this file.
+
+# Your secret key is used for verifying the integrity of signed cookies.
+# If you change this key, all old signed cookies will become invalid!
+
+# Make sure the secret is at least 30 characters and all random,
+# no regular words or you'll be exposed to dictionary attacks.
+# You can use `rake secret` to generate a secure secret key.
+
+# Make sure the secrets in this file are kept private
+# if you're sharing your code publicly.
+
+development:
+  secret_key_base: 16b384b51ec922b8838ec9d63a22a6dc65fe2eff37091ad69d824b1470495f0a78ef25dff2d84bac03f070232aa0a57202b9738ff63c2e5d07026a5322fc0d8b
+
+test:
+  secret_key_base: 579e1787c6c664f58a70a6cef59c845cd32560af16bd7acbb18d5d59158468cf444e7032ac79be2541e2e9e4a51f7e0453e7d4e5d2c3805653f0f3068a6787c6
+
+# Do not keep production secrets in the repository,
+# instead read values from the environment.
+production:
+  secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>

db/migrate/20160704142514_create_student_grades.rb

+class CreateStudentGrades < ActiveRecord::Migration
+  def change
+    create_table :student_grades do |t|
+    	t.string :last_name, limit: 50
+		t.string :first_name, limit: 50
+    	t.decimal :english_grade, limit: 50, :precision =>2
+    	t.decimal :math_grade, limit: 50, :precision =>2
+    	t.decimal :science_grade, limit: 50, :precision =>2
+    	t.decimal :history_grade, limit: 50, :precision =>2
+      t.timestamps null: false
+    end
+  end
+end

db/schema.rb

+# encoding: UTF-8
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 20160704142514) do
+
+  create_table "student_grades", force: :cascade do |t|
+    t.string   "last_name",     limit: 50
+    t.string   "first_name",    limit: 50
+    t.decimal  "english_grade",            precision: 2
+    t.decimal  "math_grade",               precision: 2
+    t.decimal  "science_grade",            precision: 2
+    t.decimal  "history_grade",            precision: 2
+    t.datetime "created_at",                             null: false
+    t.datetime "updated_at",                             null: false
+  end
+
+end

db/seeds.rb

+# This file should contain all the record creation needed to seed the database with its default values.
+# The data can then be loaded with the rake db:seed (or created alongside the db with db:setup).
+#
+# Examples:
+#
+#   cities = City.create([{ name: 'Chicago' }, { name: 'Copenhagen' }])
+#   Mayor.create(name: 'Emanuel', city: cities.first)

public/404.html

+<!DOCTYPE html>
+<html>
+<head>
+  <title>The page you were looking for doesn't exist (404)</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <style>
+  body {
+    background-color: #EFEFEF;
+    color: #2E2F30;
+    text-align: center;
+    font-family: arial, sans-serif;
+    margin: 0;
+  }
+
+  div.dialog {
+    width: 95%;
+    max-width: 33em;
+    margin: 4em auto 0;
+  }
+
+  div.dialog > div {
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #BBB;
+    border-top: #B00100 solid 4px;
+    border-top-left-radius: 9px;
+    border-top-right-radius: 9px;
+    background-color: white;
+    padding: 7px 12% 0;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+
+  h1 {
+    font-size: 100%;
+    color: #730E15;
+    line-height: 1.5em;
+  }
+
+  div.dialog > p {
+    margin: 0 0 1em;
+    padding: 1em;
+    background-color: #F7F7F7;
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #999;
+    border-bottom-left-radius: 4px;
+    border-bottom-right-radius: 4px;
+    border-top-color: #DADADA;
+    color: #666;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/404.html -->
+  <div class="dialog">
+    <div>
+      <h1>The page you were looking for doesn't exist.</h1>
+      <p>You may have mistyped the address or the page may have moved.</p>
+    </div>
+    <p>If you are the application owner check the logs for more information.</p>
+  </div>
+</body>
+</html>

public/422.html

+<!DOCTYPE html>
+<html>
+<head>
+  <title>The change you wanted was rejected (422)</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <style>
+  body {
+    background-color: #EFEFEF;
+    color: #2E2F30;
+    text-align: center;
+    font-family: arial, sans-serif;
+    margin: 0;
+  }
+
+  div.dialog {
+    width: 95%;
+    max-width: 33em;
+    margin: 4em auto 0;
+  }
+
+  div.dialog > div {
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #BBB;
+    border-top: #B00100 solid 4px;
+    border-top-left-radius: 9px;
+    border-top-right-radius: 9px;
+    background-color: white;
+    padding: 7px 12% 0;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+
+  h1 {
+    font-size: 100%;
+    color: #730E15;
+    line-height: 1.5em;
+  }
+
+  div.dialog > p {
+    margin: 0 0 1em;
+    padding: 1em;
+    background-color: #F7F7F7;
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #999;
+    border-bottom-left-radius: 4px;
+    border-bottom-right-radius: 4px;
+    border-top-color: #DADADA;
+    color: #666;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/422.html -->
+  <div class="dialog">
+    <div>
+      <h1>The change you wanted was rejected.</h1>
+      <p>Maybe you tried to change something you didn't have access to.</p>
+    </div>
+    <p>If you are the application owner check the logs for more information.</p>
+  </div>
+</body>
+</html>

public/500.html

+<!DOCTYPE html>
+<html>
+<head>
+  <title>We're sorry, but something went wrong (500)</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <style>
+  body {
+    background-color: #EFEFEF;
+    color: #2E2F30;
+    text-align: center;
+    font-family: arial, sans-serif;
+    margin: 0;
+  }
+
+  div.dialog {
+    width: 95%;
+    max-width: 33em;
+    margin: 4em auto 0;
+  }
+
+  div.dialog > div {
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #BBB;
+    border-top: #B00100 solid 4px;
+    border-top-left-radius: 9px;
+    border-top-right-radius: 9px;
+    background-color: white;
+    padding: 7px 12% 0;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+
+  h1 {
+    font-size: 100%;
+    color: #730E15;
+    line-height: 1.5em;
+  }
+
+  div.dialog > p {
+    margin: 0 0 1em;
+    padding: 1em;
+    background-color: #F7F7F7;
+    border: 1px solid #CCC;
+    border-right-color: #999;
+    border-left-color: #999;
+    border-bottom-color: #999;
+    border-bottom-left-radius: 4px;
+    border-bottom-right-radius: 4px;
+    border-top-color: #DADADA;
+    color: #666;
+    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
+  }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/500.html -->
+  <div class="dialog">
+    <div>
+      <h1>We're sorry, but something went wrong.</h1>
+    </div>
+    <p>If you are the application owner check the logs for more information.</p>
+  </div>
+</body>
+</html>

public/robots.txt

+# See http://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+#
+# To ban all spiders from the entire site uncomment the next two lines:
+# User-agent: *
+# Disallow: /

test/controllers/welcome_controller_test.rb

+require 'test_helper'
+
+class WelcomeControllerTest < ActionController::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/fixtures/student_grades.yml

+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# This model initially had no columns defined.  If you add columns to the
+# model remove the '{}' from the fixture names and add the columns immediately
+# below each fixture, per the syntax in the comments below
+#
+one: {}
+# column: value
+#
+two: {}
+#  column: value

test/models/student_grade_test.rb

+require 'test_helper'
+
+class StudentGradeTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/test_helper.rb

+ENV['RAILS_ENV'] ||= 'test'
+require File.expand_path('../../config/environment', __FILE__)
+require 'rails/test_help'
+
+class ActiveSupport::TestCase
+  # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
+  fixtures :all
+
+  # Add more helper methods to be used by all tests here...
+end