Add index unique for table user email

Gemfile

@@ -21,7 +21,7 @@ gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
 # Use Redis adapter to run Action Cable in production
 # gem 'redis', '~> 4.0'
 # gem 'redis', '~> 4.0'
 # Use Active Model has_secure_password
 # Use Active Model has_secure_password
-# gem 'bcrypt', '~> 3.1.7'
+gem 'bcrypt', '~> 3.1.7'
 
 
 # Use Active Storage variant
 # Use Active Storage variant
 # gem 'image_processing', '~> 1.2'
 # gem 'image_processing', '~> 1.2'

Gemfile.lock

@@ -58,6 +58,7 @@ GEM
       zeitwerk (~> 2.2)
       zeitwerk (~> 2.2)
     addressable (2.7.0)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
       public_suffix (>= 2.0.2, < 5.0)
+    bcrypt (3.1.13)
     bindex (0.8.1)
     bindex (0.8.1)
     bootsnap (1.4.6)
     bootsnap (1.4.6)
       msgpack (~> 1.0)
       msgpack (~> 1.0)
@@ -232,6 +233,7 @@ PLATFORMS
   x86-mswin32
   x86-mswin32
 
 
 DEPENDENCIES
 DEPENDENCIES
+  bcrypt (~> 3.1.7)
   bootsnap (>= 1.4.2)
   bootsnap (>= 1.4.2)
   byebug
   byebug
   capybara (>= 2.15)
   capybara (>= 2.15)

app/models/user.rb

@@ -3,4 +3,8 @@ class User < ApplicationRecord
   has_many :jobs, through: :applies
   has_many :jobs, through: :applies
   has_many :favorites
   has_many :favorites
   has_many :jobs, through: :favorites
   has_many :jobs, through: :favorites
+
+  has_secure_password
+
+  validates :email, uniqueness: { message: "Email is exist"}
 end
 end

db/migrate/20200317080638_create_users.rb

@@ -8,5 +8,6 @@ class CreateUsers < ActiveRecord::Migration[6.0]
       
       
       t.timestamps
       t.timestamps
     end
     end
+    add_index :users, :email, unique: true
   end
   end
 end
 end

db/schema.rb

@@ -86,6 +86,7 @@ ActiveRecord::Schema.define(version: 2020_04_03_070245) do
     t.string "cv_of_user"
     t.string "cv_of_user"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.index ["email"], name: "index_users_on_email", unique: true
   end
   end
 
 
   add_foreign_key "applies", "jobs"
   add_foreign_key "applies", "jobs"