Michael Bashour - Library plus

Gemfile

@@ -3,3 +3,5 @@ ruby '2.0.0'
 
 gem 'rspec', '~> 2.14.1'
 gem 'pry-byebug'
+gem 'sinatra', '~> 1.4.5'
+gem 'pg'

Gemfile.lock

@@ -1,23 +1,26 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    byebug (3.5.1)
+      columnize (~> 0.8)
+      debugger-linecache (~> 1.2)
+      slop (~> 3.6)
     coderay (1.1.0)
-    columnize (0.3.6)
-    debugger (1.6.5)
-      columnize (>= 0.3.1)
-      debugger-linecache (~> 1.2.0)
-      debugger-ruby_core_source (~> 1.3.1)
+    columnize (0.8.9)
     debugger-linecache (1.2.0)
-    debugger-ruby_core_source (1.3.1)
     diff-lcs (1.2.5)
     method_source (0.8.2)
-    pry (0.9.12.6)
-      coderay (~> 1.0)
-      method_source (~> 0.8)
+    pg (0.17.1)
+    pry (0.10.1)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
       slop (~> 3.4)
-    pry-debugger (0.2.2)
-      debugger (~> 1.3)
-      pry (~> 0.9.10)
+    pry-byebug (2.0.0)
+      byebug (~> 3.4)
+      pry (~> 0.10)
+    rack (1.5.2)
+    rack-protection (1.5.3)
+      rack
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
@@ -26,11 +29,18 @@ GEM
     rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.14.5)
-    slop (3.4.7)
+    sinatra (1.4.5)
+      rack (~> 1.4)
+      rack-protection (~> 1.4)
+      tilt (~> 1.3, >= 1.3.4)
+    slop (3.6.0)
+    tilt (1.4.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  pry-debugger (~> 0.2.2)
-  rspec (~> 2.14.0)
+  pg
+  pry-byebug
+  rspec (~> 2.14.1)
+  sinatra (~> 1.4.5)

lib/library_plus.rb

@@ -0,0 +1,34 @@
+require 'pg'
+
+module Library
+  def self.create_db_connection(dbname)
+    PG.connect(host: 'localhost', dbname: dbname, user: 'postgres', password: 'password')
+  end
+
+  def self.clear_db(db)
+    db.exec <<-SQL
+      DELETE FROM users;
+      /* TODO: Clear rest of the tables (books, etc.) */
+    SQL
+  end
+
+  def self.create_tables(db)
+    db.exec <<-SQL
+      CREATE TABLE users(
+        id SERIAL PRIMARY KEY,
+        name VARCHAR
+      );
+      /* TODO: Create rest of the tables (books, etc.) */
+    SQL
+  end
+
+  def self.drop_tables(db)
+    db.exec <<-SQL
+      DROP TABLE users;
+      /* TODO: Drop rest of the tables (books, etc.) */
+    SQL
+  end
+end
+
+require_relative 'library_plus/book_repo'
+require_relative 'library_plus/user_repo'

lib/library_plus/book_repo.rb

@@ -0,0 +1 @@
+# TODO

lib/library_plus/user_repo.rb

@@ -0,0 +1,38 @@
+# Library ::UserRepo  <-- how to reference this class
+# This is a user class under the Library module
+# Library::UserRepo.all(db)
+# Library::BookRepo.all(db)
+
+module Library
+  class UserRepo
+
+    def self.all(db)
+      # Other code should not have to deal with the PG:Result.
+      # Therefore, convert the results into a plain array.
+      db.exec("SELECT * FROM users").to_a
+    end
+
+    def self.find(db, user_id)
+      # TODO: Insert SQL statement
+    end
+        # Use Create if !exists and Update if does
+        # TODO: Update SQL statement
+        # Library::UserRepo.save(db, { :name => "Alice" })
+
+    def self.save(db, user_data)
+      if user_data['id']
+
+        #
+      else
+      db.exec("INSERT INTO users (name) VALUES ($1)", [user_data[:name]])  
+      results = db.exec("SELECT * FROM users")
+      results
+      end
+    end
+
+    def self.destroy(db, user_id)
+      # TODO: Delete SQL statement
+    end
+
+  end
+end

server.rb

@@ -0,0 +1,8 @@
+require 'sinatra'
+require './lib/library_plus'
+
+# set :bind, '0.0.0.0' # This is needed for Vagrant
+
+get '/' do
+  erb :index
+end

spec/repos/user_repo_spec.rb

@@ -0,0 +1,65 @@
+require 'spec_helper'
+
+describe Library::UserRepo do
+
+  def user_count(db)
+    db.exec("SELECT COUNT(*) FROM users")[0]["count"].to_i
+  end
+
+  let(:db) { Library.create_db_connection('library_test') }
+
+  before(:each) do
+    Library.clear_db(db)
+  end
+
+  it "gets all users" do
+    db.exec("INSERT INTO users (name) VALUES ($1)", ["Alice"])
+    db.exec("INSERT INTO users (name) VALUES ($1)", ["Bob"])
+
+    users = Library::UserRepo.all(db)
+    expect(users).to be_a Array
+    expect(users.count).to eq 2
+
+    names = users.map {|u| u['name'] }
+    expect(names).to include "Alice", "Bob"
+  end
+
+  xit "creates users" do
+    expect(user_count(db)).to eq 0
+
+    user = Library::UserRepo.save(db, { 'name' => "Alice" })
+    expect(user['id']).to_not be_nil
+    expect(user['name']).to eq "Alice"
+
+    # Check for persistence
+    expect(user_count(db)).to eq 1
+
+    user = db.exec("SELECT * FROM users")[0]
+    expect(user['name']).to eq "Alice"
+  end
+
+  xit "finds users" do
+    user = Library::UserRepo.save(db, { 'name' => "Alice" })
+    retrieved_user = Library::UserRepo.find(db, user['id'])
+    expect(retrieved_user['name']).to eq "Alice"
+  end
+
+  xit "updates users" do
+    user1 = Library::UserRepo.save(db, { 'name' => "Alice" })
+    user2 = Library::UserRepo.save(db, { 'id' => user1['id'], 'name' => "Alicia" })
+    expect(user2['id']).to eq(user1['id'])
+    expect(user2['name']).to eq "Alicia"
+
+    # Check for persistence
+    user3 = Library::UserRepo.find(user1['id'])
+    expect(user3['name']).to eq "Alicia"
+  end
+
+  xit "destroys users" do
+    user = Library::UserRepo.save(db, { 'name' => "Alice" })
+    expect(user_count(db)).to eq 1
+
+    Library::UserRepo.destroy(db, user['id'])
+    expect(user_count(db)).to eq 0
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,13 @@
+require 'library_plus'
+
+RSpec.configure do |config|
+  config.treat_symbols_as_metadata_keys_with_true_values = true
+  config.run_all_when_everything_filtered = true
+  config.filter_run :focus
+
+  # Run specs in random order to surface order dependencies. If you find an
+  # order dependency and want to debug it, you can fix the order by providing
+  # the seed, which is printed after each run.
+  #     --seed 1234
+  config.order = 'random'
+end

views/index.erb

@@ -0,0 +1,3 @@
+<h1>The Library Plus System</h1>
+
+<p>Welcome to your freedom!</p>