Removed unuse files

app/models/city_job.rb

 class CityJob < ApplicationRecord
-  belongs_to :jobs
-  belongs_to :cities
+  belongs_to :job
+  belongs_to :city
 end

app/models/industry_job.rb

 class IndustryJob < ApplicationRecord
-  belongs_to :jobs
-  belongs_to :industries
+  belongs_to :job
+  belongs_to :industry
 end

app/models/user.rb

@@ -3,9 +3,24 @@ class User < ApplicationRecord
   # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :validatable
+
   has_many :user_jobs
-  validates :email, presence: true, uniqueness: true
-  validates :username, presence: true, format: { with: /\A[A-Za-z][A-Za-z0-9._-]{2,19}\z/ }
-  validates :first_name, presence: true, format: { with: /\A[A-Za-z][A-Za-z0-9._-]{2,19}\z/ }
-  validates :last_name, presence: true, format: { with: /\A[A-Za-z][A-Za-z0-9._-]{2,19}\z/ }
+
+  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
+  VALID_USERNAME_REGEX = /\A[a-zA-Z0-9]+\z/
+
+  validates :email, presence: true,
+                    length: { maximum: 255 },
+                    format: { with: VALID_EMAIL_REGEX },
+                    uniqueness: { case_sensitive: false }
+  validates :username, presence: true,
+                       length: { minimum: 6, maximum: 50 },
+                       format: { with: VALID_USERNAME_REGEX },
+                       uniqueness: { case_sensitive: false }
+  validates :first_name, presence: true,
+                         length: { maximum: 50 },
+                         format: { with: VALID_USERNAME_REGEX }
+  validates :last_name, presence: true,
+                        length: { maximum: 50 },
+                        format: { with: VALID_USERNAME_REGEX }
 end

app/models/user_job.rb

 class UserJob < ApplicationRecord
   belongs_to :user
-  belongs_to :jobs
+  belongs_to :job
 end

db/migrate/20191126074641_devise_create_users.rb

@@ -4,8 +4,8 @@ class DeviseCreateUsers < ActiveRecord::Migration[6.0]
   def change
     create_table :users do |t|
       ## Database authenticatable
-      t.string :email, null: false, default: ""
-      t.string :username, null:false, default: ""
+      t.string :email, null: false, default: "", unique: true
+      t.string :username, null: false, default: "", unique: true
       t.string :password, null: false, default: ""
 
       ## Recoverable
@@ -42,6 +42,7 @@ class DeviseCreateUsers < ActiveRecord::Migration[6.0]
     end
 
     add_index :users, :email, unique: true
+    add_index :users, :username, unique: true
     add_index :users, :reset_digest, unique: true
     # add_index :users, :confirmation_token,   unique: true
     # add_index :users, :unlock_token,         unique: true

db/migrate/20191127073922_create_user_jobs.rb

@@ -7,7 +7,12 @@ class CreateUserJobs < ActiveRecord::Migration[6.0]
       t.datetime :favorited_at
       t.datetime :viewed_at
       t.datetime :applied_at
+
       t.timestamps null: false
     end
+
+    add_index :user_jobs, :user_id
+    add_index :user_jobs, :job_id
+    add_index :user_jobs, [:user_id, :job_id]
   end
 end

db/migrate/20191127073956_create_companies.rb

 class CreateCompanies < ActiveRecord::Migration[6.0]
   def change
     create_table :companies do |t|
-      t.string :username, null: false, default: ""
       t.string :email, null: false, default: ""
       t.text :description
       t.string :address
       t.string :url
+      t.string :name
 
       t.timestamps null: false
     end

db/migrate/20191127075223_create_industry_jobs.rb

@@ -6,5 +6,8 @@ class CreateIndustryJobs < ActiveRecord::Migration[6.0]
 
       t.timestamps null: false
     end
+
+    add_index :industry_jobs, :job_id
+    add_index :industry_jobs, :industry_id
   end
 end

db/schema.rb

@@ -27,11 +27,11 @@ ActiveRecord::Schema.define(version: 2019_11_27_075301) do
   end
 
   create_table "companies", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
-    t.string "username", default: "", null: false
     t.string "email", default: "", null: false
     t.text "description"
     t.string "address"
     t.string "url"
+    t.string "name"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
   end
@@ -47,6 +47,8 @@ ActiveRecord::Schema.define(version: 2019_11_27_075301) do
     t.integer "industry_id"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.index ["industry_id"], name: "index_industry_jobs_on_industry_id"
+    t.index ["job_id"], name: "index_industry_jobs_on_job_id"
   end
 
   create_table "jobs", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
@@ -73,6 +75,9 @@ ActiveRecord::Schema.define(version: 2019_11_27_075301) do
     t.datetime "applied_at"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.index ["job_id"], name: "index_user_jobs_on_job_id"
+    t.index ["user_id", "job_id"], name: "index_user_jobs_on_user_id_and_job_id"
+    t.index ["user_id"], name: "index_user_jobs_on_user_id"
   end
 
   create_table "users", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
@@ -93,6 +98,7 @@ ActiveRecord::Schema.define(version: 2019_11_27_075301) do
     t.datetime "updated_at", precision: 6, null: false
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_digest"], name: "index_users_on_reset_digest", unique: true
+    t.index ["username"], name: "index_users_on_username", unique: true
   end
 
 end

test/fixtures/cities.yml

-# Read about fixtures at https://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/fixtures/city_jobs.yml

-# Read about fixtures at https://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/fixtures/industries.yml

-# Read about fixtures at https://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/fixtures/industry_jobs.yml

-# Read about fixtures at https://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/fixtures/jobs.yml

-# Read about fixtures at https://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/fixtures/users.yml

-# Read about fixtures at https://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/city_job_test.rb

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

test/models/city_test.rb

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

test/models/industry_job_test.rb

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

test/models/industry_test.rb

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

test/models/job_test.rb

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

test/models/user_test.rb

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