BCrypt cheat sheet

BCrypt_cheatsheet.rb

# BCrypt Outline

# Config/Environment
  require 'bcrypt'

# Gemfile
  gem "bcrypt"

# Migration
  t.string :password_hash, null: false

#############################################
################# Model #####################
#############################################

  include BCrypt

  def password
    @password ||= Password.new(password_hash)
  end

  def password=(pass)
    @entered_password = pass
    @password = Password.create(pass)
    self.password_hash = @password
  end

  def self.authenticate(email, password)
    user = User.find_by_email(email)
    return user if user && (user.password == password)
    nil
  end

#############################################
###############Controller####################
#############################################

get '/' do
  display_errors
  @user = User.find_by_id(session[:user_id])
  erb :index
end

post '/sign_in' do
  @email = params[:email]
  user = User.authenticate(@email, params[:password])
  if user
    session[:user_id] = user.id
    redirect '/'
    # change redirect as needed
  else
    session[:error] = "Invalid email or password."
    redirect '/'
  end
end

get '/sign_out' do
  session.clear
  redirect '/'
end

post '/sign_up' do
  @user = User.new params[:user]
  if @user.save
    session[:user_id] = @user.id
    redirect '/'
    # change redirect as needed
  else
    session[:error] = "Oops, something went wrong! Please try again"
    redirect '/'
  end
end

# not_found do
#   status 404
#   erb :oops
# end


# get '/user/home' do
#   @current_user = User.find(session[:user_id])
#   @user_proficiencies = @current_user.proficiencies
#   erb :index
# end


#############################################
################# View ######################
#############################################

  #Sign In
<div class="container"><br><br>
  <% if @error %>
    <%= @error %>
  <% end %>

  <% if @user %>
    <%= @user.username %>
    <a href="/sign_out">Sign out</a>
  <% end %>

  <form id="sign-in" method="post" action="/sign_in">
    <input type="email" name="email" placeholder="email" value="<%=  %>"><br>
    <input type="password" name="password" placeholder="password">
    <br>
    <div class="submit"><input type="submit" value="Sign In"></div>
  </form><br><br>

  <form id="sign-up" method="post" action="/sign_up">

    <input type="text" name="user[first_name]" placeholder="First Name" value="<%=  %>">
    <span id="name-errors" class="errors"></span>
    <br>

    <input type="text" name="user[last_name]" placeholder="Last Name" value="<%=  %>">
    <span id="name-errors" class="errors"></span>
    <br>

    <input type="text" name="user[username]" placeholder="Username" value="<%=  %>">
    <span id="name-errors" class="errors"></span>
    <br>

    <input type="email" name="user[email]" placeholder="email" value="<%=  %>">
    <span id="email-errors" class="errors"></span>
    <br>

    <input type="password" name="user[password]" placeholder="password">
    <span id="entered_password-errors" class="errors"></span>
    <br>

    <div class="submit"><input type="submit" value="Sign Up"></div>
  </form>
</div>


# Seed
  my_password = BCrypt::Password.create("password")

  User.create(password_hash: "#{my_password}")