DB Schema

  Design DB UML.
  Generate models and migration.
  Add relationships.
  NB: DB contains two polymorphic tables; comments and tags.

.rspec

@@ -0,0 +1,2 @@
+--color
+--require spec_helper

Gemfile

@@ -1,21 +1,21 @@
 source 'https://rubygems.org'
 
+ruby "2.2.3"
 
 gem 'rails', '4.2.5'
-
 gem 'rails-api'
-
 gem 'spring', :group => :development
-
 gem 'omniauth-oauth2', '~> 1.3.1'
 gem 'omniauth-slack'
 gem "omniauth-google-oauth2"
 gem 'figaro'
 gem 'ancestry'
-gem 'pry-rails'
 
 group :development, :test do
   gem 'sqlite3'
+  gem "rspec-rails"
+  gem 'pry-rails'
+  gem 'pry-nav'
 end
 
 group :production do

Gemfile.lock

@@ -43,6 +43,7 @@ GEM
     builder (3.2.2)
     coderay (1.1.0)
     concurrent-ruby (1.0.0)
+    diff-lcs (1.2.5)
     erubis (2.7.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
@@ -92,6 +93,8 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    pry-nav (0.2.4)
+      pry (>= 0.9.10, < 0.11.0)
     pry-rails (0.3.4)
       pry (>= 0.9.10)
     rack (1.6.4)
@@ -125,6 +128,23 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.5.0)
+    rspec-core (3.4.1)
+      rspec-support (~> 3.4.0)
+    rspec-expectations (3.4.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.4.0)
+    rspec-mocks (3.4.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.4.0)
+    rspec-rails (3.4.0)
+      actionpack (>= 3.0, < 4.3)
+      activesupport (>= 3.0, < 4.3)
+      railties (>= 3.0, < 4.3)
+      rspec-core (~> 3.4.0)
+      rspec-expectations (~> 3.4.0)
+      rspec-mocks (~> 3.4.0)
+      rspec-support (~> 3.4.0)
+    rspec-support (3.4.1)
     slop (3.6.0)
     spring (1.6.2)
     sprockets (3.5.2)
@@ -150,11 +170,13 @@ DEPENDENCIES
   omniauth-oauth2 (~> 1.3.1)
   omniauth-slack
   pg
+  pry-nav
   pry-rails
   rails (= 4.2.5)
   rails-api
+  rspec-rails
   spring
   sqlite3
 
 BUNDLED WITH
-   1.10.6
+   1.11.2

app/models/answer.rb

@@ -0,0 +1,5 @@
+class Answer < ActiveRecord::Base
+  has_many :comments, as: :comment_on
+  belongs_to :user
+  belongs_to :question
+end

app/models/comment.rb

@@ -0,0 +1,3 @@
+class Comment < ActiveRecord::Base
+  belongs_to :comment_on
+end

app/models/question.rb

@@ -0,0 +1,6 @@
+class Question < ActiveRecord::Base
+  has_many :comments, as: :comment_on
+  has_many :tags, as: :subscriber
+  has_many :answers
+  belongs_to :user
+end

app/models/tag.rb

@@ -0,0 +1,3 @@
+class Tag < ActiveRecord::Base
+  belongs_to :subscriber
+end

app/models/user.rb

@@ -0,0 +1,6 @@
+class User < ActiveRecord::Base
+  has_many :comments, as: :comment_on
+  has_many :tags, as: :subscriber
+  has_many :questions
+  has_many :answers
+end

db/migrate/20160124125414_create_users.rb

@@ -0,0 +1,11 @@
+class CreateUsers < ActiveRecord::Migration
+  def change
+    create_table :users do |t|
+      t.string :uuid
+      t.string :provider
+      t.integer :points
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160124130046_create_questions.rb

@@ -0,0 +1,12 @@
+class CreateQuestions < ActiveRecord::Migration
+  def change
+    create_table :questions do |t|
+      t.integer :user_id
+      t.string :title
+      t.string :content
+      t.integer :votes
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160124130157_create_answers.rb

@@ -0,0 +1,12 @@
+class CreateAnswers < ActiveRecord::Migration
+  def change
+    create_table :answers do |t|
+      t.integer :user_id
+      t.integer :question_id
+      t.string :content
+      t.integer :votes
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160124143352_create_tags.rb

@@ -0,0 +1,10 @@
+class CreateTags < ActiveRecord::Migration
+  def change
+    create_table :tags do |t|
+      t.string :name
+      t.references :subscriber, polymorphic: true, index: true
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160124145702_create_comments.rb

@@ -0,0 +1,12 @@
+class CreateComments < ActiveRecord::Migration
+  def change
+    create_table :comments do |t|
+      t.integer :user_id
+      t.string :content
+      t.integer :votes
+      t.references :comment_on, polymorphic: true, index: true
+
+      t.timestamps null: false
+    end
+  end
+end

db/schema.rb

@@ -0,0 +1,64 @@
+# 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: 20160124145702) do
+
+  create_table "answers", force: :cascade do |t|
+    t.integer  "user_id"
+    t.integer  "question_id"
+    t.string   "content"
+    t.integer  "votes"
+    t.datetime "created_at",  null: false
+    t.datetime "updated_at",  null: false
+  end
+
+  create_table "comments", force: :cascade do |t|
+    t.integer  "user_id"
+    t.string   "content"
+    t.integer  "votes"
+    t.integer  "comment_on_id"
+    t.string   "comment_on_type"
+    t.datetime "created_at",      null: false
+    t.datetime "updated_at",      null: false
+  end
+
+  add_index "comments", ["comment_on_type", "comment_on_id"], name: "index_comments_on_comment_on_type_and_comment_on_id"
+
+  create_table "questions", force: :cascade do |t|
+    t.integer  "user_id"
+    t.string   "title"
+    t.string   "content"
+    t.integer  "votes"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  create_table "tags", force: :cascade do |t|
+    t.string   "name"
+    t.integer  "subscriber_id"
+    t.string   "subscriber_type"
+    t.datetime "created_at",      null: false
+    t.datetime "updated_at",      null: false
+  end
+
+  add_index "tags", ["subscriber_type", "subscriber_id"], name: "index_tags_on_subscriber_type_and_subscriber_id"
+
+  create_table "users", force: :cascade do |t|
+    t.string   "uuid"
+    t.string   "provider"
+    t.integer  "points"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+end

docs/schema_sql.md

@@ -0,0 +1,118 @@
+-- ---
+-- Globals
+-- ---
+
+-- SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
+-- SET FOREIGN_KEY_CHECKS=0;
+
+-- ---
+-- Table 'users'
+--
+-- ---
+
+DROP TABLE IF EXISTS `users`;
+
+CREATE TABLE `users` (
+  `id` INTEGER NULL AUTO_INCREMENT DEFAULT NULL,
+  `uid` INTEGER NOT NULL DEFAULT NULL,
+  `provider` VARCHAR NOT NULL DEFAULT 'NULL',
+  `points` INTEGER NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);
+
+-- ---
+-- Table 'questions'
+--
+-- ---
+
+DROP TABLE IF EXISTS `questions`;
+
+CREATE TABLE `questions` (
+  `id` INTEGER NULL AUTO_INCREMENT DEFAULT NULL,
+  `user_id` INTEGER NOT NULL DEFAULT NULL,
+  `content` VARCHAR NOT NULL DEFAULT 'NULL',
+  `votes` INTEGER NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);
+
+-- ---
+-- Table 'comments'
+--
+-- ---
+
+DROP TABLE IF EXISTS `comments`;
+
+CREATE TABLE `comments` (
+  `id` INTEGER NULL AUTO_INCREMENT DEFAULT NULL,
+  `comment_on` INTEGER NOT NULL DEFAULT answer or question,
+  `subject_id` INTEGER NOT NULL DEFAULT NULL,
+  `user_id` INTEGER NOT NULL DEFAULT NULL,
+  `content` VARCHAR NOT NULL DEFAULT 'NULL',
+  `votes` INTEGER NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);
+
+-- ---
+-- Table 'tags'
+--
+-- ---
+
+DROP TABLE IF EXISTS `tags`;
+
+CREATE TABLE `tags` (
+  `id` INTEGER NULL AUTO_INCREMENT DEFAULT NULL,
+  `name` VARCHAR NOT NULL DEFAULT 'NULL',
+  `subscribed_users` VARCHAR NOT NULL DEFAULT 'NULL' COMMENT 'This will be like a list of the ids of users that have this ',
+  `subscribed_questions` VARCHAR NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);
+
+-- ---
+-- Table 'answers'
+--
+-- ---
+
+DROP TABLE IF EXISTS `answers`;
+
+CREATE TABLE `answers` (
+  `id` INTEGER NULL AUTO_INCREMENT DEFAULT NULL,
+  `question_id` INTEGER NOT NULL DEFAULT NULL,
+  `content` VARCHAR NOT NULL DEFAULT 'NULL',
+  `votes` INTEGER NULL DEFAULT NULL,
+  `user_id` INTEGER NOT NULL DEFAULT NULL,
+  PRIMARY KEY (`id`)
+);
+
+-- ---
+-- Foreign Keys
+-- ---
+
+ALTER TABLE `questions` ADD FOREIGN KEY (user_id) REFERENCES `users` (`id`);
+ALTER TABLE `comments` ADD FOREIGN KEY (user_id) REFERENCES `users` (`id`);
+ALTER TABLE `answers` ADD FOREIGN KEY (question_id) REFERENCES `questions` (`id`);
+ALTER TABLE `answers` ADD FOREIGN KEY (user_id) REFERENCES `users` (`id`);
+
+-- ---
+-- Table Properties
+-- ---
+
+-- ALTER TABLE `users` ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+-- ALTER TABLE `questions` ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+-- ALTER TABLE `comments` ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+-- ALTER TABLE `tags` ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+-- ALTER TABLE `answers` ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+
+-- ---
+-- Test Data
+-- ---
+
+-- INSERT INTO `users` (`id`,`uid`,`provider`,`points`) VALUES
+-- ('','','','');
+-- INSERT INTO `questions` (`id`,`user_id`,`content`,`votes`) VALUES
+-- ('','','','');
+-- INSERT INTO `comments` (`id`,`comment_on`,`subject_id`,`user_id`,`content`,`votes`) VALUES
+-- ('','','','','','');
+-- INSERT INTO `tags` (`id`,`name`,`subscribed_users`,`subscribed_questions`) VALUES
+-- ('','','','');
+-- INSERT INTO `answers` (`id`,`question_id`,`content`,`votes`,`user_id`) VALUES
+-- ('','','','','');

spec/models/answer_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Answer, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/comment_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Comment, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/question_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Question, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/tag_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Tag, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/user_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe User, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end