Add User model

Gemfile

@@ -10,7 +10,7 @@ gem "importmap-rails"
 gem "turbo-rails"
 gem "stimulus-rails"
 gem "jbuilder"
-# gem "bcrypt", "~> 3.1.7"
+gem "bcrypt", "~> 3.1.7"
 gem "tzinfo-data", platforms: %i[ windows jruby ]
 gem "bootsnap", require: false
 # gem "image_processing", "~> 1.2"

Gemfile.lock

@@ -78,6 +78,7 @@ GEM
     addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     base64 (0.2.0)
+    bcrypt (3.1.20)
     bigdecimal (3.1.7)
     bindex (0.8.1)
     bootsnap (1.18.3)
@@ -250,6 +251,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
+  bcrypt (~> 3.1.7)
   bootsnap
   capybara
   debug

app/models/user.rb

@@ -0,0 +1,31 @@
+class User < ApplicationRecord
+  has_secure_password
+  generates_token_for :password_reset, expires_in: 4.hours do
+    password_salt.last(10) # Invalidates when password changed
+  end
+
+  validates :username,
+            presence: true,
+            uniqueness: true,
+            length: { minimum: 3, maximum: 20 }
+  normalizes :username, with: ->(username) { username.strip.downcase }
+  validates :email,
+            presence: true,
+            uniqueness: true,
+            length: { minimum: 5, maximum: 100 },
+            format: { with: URI::MailTo::EMAIL_REGEXP,
+                      message: "must be a valid email address" }
+  normalizes :email, with: ->(email) { email.strip.downcase }
+  validates :first_name,
+            presence: true,
+            length: { maximum: 50 }
+  validates :last_name,
+            allow_nil: false,
+            length: { maximum: 50 }
+
+  def full_name
+    return first_name if last_name.blank?
+
+    "#{first_name} #{last_name}"
+  end
+end

bin/setup

@@ -9,22 +9,16 @@ def system!(*args)
 end
 
 FileUtils.chdir APP_ROOT do
-  # This script is a way to set up or update your development environment automatically.
-  # This script is idempotent, so that you can run it at any time and get an expectable outcome.
-  # Add necessary setup steps to this file.
-
   puts "== Installing dependencies =="
   system! "gem install bundler --conservative"
   system("bundle check") || system!("bundle install")
 
-  # puts "\n== Copying sample files =="
-  # unless File.exist?("config/database.yml")
-  #   FileUtils.cp "config/database.yml.sample", "config/database.yml"
-  # end
-
   puts "\n== Preparing database =="
   system! "bin/rails db:prepare"
 
+  puts "\n== Loading database fixtures =="
+  system! "bin/rails db:fixtures:load"
+
   puts "\n== Removing old logs and tempfiles =="
   system! "bin/rails log:clear tmp:clear"
 

db/migrate/20240413152553_create_users.rb

@@ -0,0 +1,23 @@
+class CreateUsers < ActiveRecord::Migration[7.1]
+  def change
+    create_table :users do |t|
+      t.string :username, null: false, limit: 20
+      t.string :password_digest, null: false, limit: 200
+      t.string :email, null: false, limit: 100
+      t.string :first_name, null: false, limit: 50
+      t.string :last_name, null: false, limit: 50, default: ""
+
+      t.timestamps
+    end
+
+    add_index :users, :username, unique: true
+    add_index :users, :email, unique: true
+
+    add_check_constraint :users, "length(username) >= 3",
+                         name: "chk_username_min_length"
+    add_check_constraint :users, "length(email) >= 5",
+                         name: "chk_email_min_length"
+    add_check_constraint :users, "length(first_name) >= 1",
+                         name: "chk_first_name_min_length"
+  end
+end

db/schema.rb

@@ -0,0 +1,32 @@
+# 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.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema[7.1].define(version: 2024_04_13_152553) do
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "plpgsql"
+
+  create_table "users", force: :cascade do |t|
+    t.string "username", limit: 20, null: false
+    t.string "password_digest", limit: 200, null: false
+    t.string "email", limit: 100, null: false
+    t.string "first_name", limit: 50, null: false
+    t.string "last_name", limit: 50, default: "", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["email"], name: "index_users_on_email", unique: true
+    t.index ["username"], name: "index_users_on_username", unique: true
+    t.check_constraint "length(email::text) >= 5", name: "chk_email_min_length"
+    t.check_constraint "length(first_name::text) >= 1", name: "chk_first_name_min_length"
+    t.check_constraint "length(username::text) >= 3", name: "chk_username_min_length"
+  end
+
+end

test/fixtures/users.yml

@@ -0,0 +1,15 @@
+trevor:
+  username: tsv
+  password_digest: <%= BCrypt::Password.create('password', cost: 5) %>
+  email: trevor@example.com
+  first_name: Trevor
+  last_name: Vallender
+
+<% 1.upto(10) do |i| %>
+user_<%= i %>:
+  username: <%= "user_#{i}" %>
+  password_digest: <%= BCrypt::Password.create('password', cost: 5) %>
+  email: <%= "user_#{i}@example.com" %>
+  first_name: <%= "User#{i}" %>
+  last_name: <%= "User#{i}" %>
+<% end %>

test/models/user_test.rb

@@ -0,0 +1,48 @@
+require "test_helper"
+
+class UserTest < ActiveSupport::TestCase
+  test "full name returns first and last name" do
+    assert_equal "Trevor Vallender", users(:trevor).full_name
+  end
+
+  test "username must exist" do
+    assert_must_exist(users(:trevor), "username")
+  end
+
+  test "username must be unique" do
+    user1 = User.first
+    user2 = User.second
+    user1.username = user2.username
+    assert_not user1.valid?
+  end
+
+  test "email must exist" do
+    assert_must_exist(users(:trevor), "email")
+  end
+
+  test "email must be unique" do
+    user1 = User.first
+    user2 = User.second
+    user1.email = user2.email
+    assert_not user1.valid?
+  end
+
+  test "email must be a valid email" do
+    user = users(:trevor)
+    user.email = "trevor"
+    assert_not user.valid?
+    assert_includes user.errors[:email], "must be a valid email address"
+  end
+
+  test "first name must exist" do
+    assert_must_exist(users(:trevor), "first_name")
+  end
+
+  test "password reset token is invalid after password changed" do
+    user = users(:trevor)
+    token = user.generate_token_for(:password_reset)
+    assert_equal user, User.find_by_token_for(:password_reset, token)
+    user.update(password: "new_password")
+    assert_nil User.find_by_token_for(:password_reset, token)
+  end
+end

test/test_helper.rb

@@ -10,6 +10,12 @@ module ActiveSupport
     # 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...
+    def assert_must_exist(record, field)
+      assert record.valid?
+      record.attributes = { "#{field}": nil }
+      assert_not record.valid?
+      assert_includes record.errors[field.to_sym], "can't be blank"
+      assert_raises { record.save(validate: false) }
+    end
   end
 end