improvements in the letter verification error messages

app/controllers/application_controller.rb

@@ -52,7 +52,7 @@ class ApplicationController < ActionController::Base
     end
 
     def verify_lock
-      if current_user.locked?
+      if current_user.try(:locked?)
         redirect_to account_path, alert: t('verification.alert.lock')
       end
     end
@@ -97,12 +97,14 @@ class ApplicationController < ActionController::Base
     end
 
     def verify_resident!
-      unless current_user.residence_verified?
+      if current_user && !current_user.residence_verified?
         redirect_to new_residence_path, alert: t('verification.residence.alert.unconfirmed_residency')
       end
     end
 
     def verify_verified!
-      redirect_to(account_path, notice: t('verification.redirect_notices.already_verified')) if current_user.level_three_verified?
+      if current_user.try(:level_three_verified?)
+        redirect_to(account_path, notice: t('verification.redirect_notices.already_verified'))
+      end
     end
 end

app/controllers/verification/letter_controller.rb

@@ -1,6 +1,6 @@
 class Verification::LetterController < ApplicationController
   before_action :authenticate_user!, except: [:edit, :update]
-  before_action :check_credentials, only: :update
+  before_action :login_via_form, only: :update
 
   before_action :verify_resident!, except: :edit
   before_action :verify_phone!, except: :edit
@@ -32,7 +32,7 @@ class Verification::LetterController < ApplicationController
       current_user.update(verified_at: Time.now)
       redirect_to account_path, notice: t('verification.letter.update.flash.success')
     else
-      Lock.increase_tries(@letter.user)
+      Lock.increase_tries(@letter.user) if @letter.user
       render :edit
     end
   end
@@ -44,18 +44,17 @@ class Verification::LetterController < ApplicationController
     end
 
     def verify_phone!
-      unless current_user.confirmed_phone?
+      if current_user && !current_user.confirmed_phone?
         redirect_to verified_user_path, alert: t('verification.letter.alert.unconfirmed_code')
       end
     end
 
-    def check_credentials
-      user = User.where(email: letter_params[:email]).first
+    def login_via_form
+      user = User.find_by_email(letter_params[:email])
       if user && user.valid_password?(letter_params[:password])
         sign_in(user)
-      else
-        redirect_to edit_letter_path, alert: t('devise.failure.invalid', authentication_keys: 'email')
       end
     end
 
+
 end

app/models/verification/letter.rb

@@ -3,9 +3,12 @@ class Verification::Letter
 
   attr_accessor :user, :verification_code, :email, :password, :verify
 
-  validates :user, presence: true
+  validates :email, presence: true
+  validates :password, presence: true
+  validates :verification_code, presence: true
 
-  validate :correct_code, if: :verify?
+  validate :validate_existing_user
+  validate :validate_correct_code, if: :verify?
 
   def save
     valid? &&
@@ -16,9 +19,17 @@ class Verification::Letter
     user.update(letter_requested_at: Time.now, letter_verification_code: generate_verification_code)
   end
 
-  def correct_code
-    errors.add(:verification_code, I18n.t('verification.letter.errors.incorrect_code')) unless
-    user.letter_verification_code == verification_code
+  def validate_existing_user
+    unless user
+      errors.add(:email, I18n.t('devise.failure.invalid', authentication_keys: 'email'))
+    end
+  end
+
+  def validate_correct_code
+    return if errors.include?(:verification_code)
+    if user.try(:letter_verification_code) != verification_code
+      errors.add(:verification_code, I18n.t('verification.letter.errors.incorrect_code'))
+    end
   end
 
   def verify?

app/views/verification/letter/edit.html.erb

@@ -11,7 +11,6 @@
 
     <div class="medium-6 small-centered column">
       <%= form_for @letter, url: letter_path, method: :patch do |f| %>
-        <%= render "/shared/errors", resource: @letter %>
         <%= f.text_field :email, label: t("pages.verify.email") %>
         <%= f.password_field :password, label: t("pages.verify.password") %>
         <%= f.text_field :verification_code, label: t("pages.verify.code") %>

spec/factories.rb

@@ -79,6 +79,9 @@ FactoryGirl.define do
 
   factory :verification_letter, class: Verification::Letter do
     user
+    email 'user@madrid.es'
+    password '1234'
+    verification_code '5555'
   end
 
   factory :lock do

spec/features/verification/letter_spec.rb

@@ -96,7 +96,7 @@ feature 'Verify Letter' do
       fill_in "verification_letter_password", with: user.password
       click_button "Verify my account"
 
-      expect(page).to have_content error_message
+      expect(page).to have_content "can't be blank"
     end
 
     scenario '6 tries allowed' do

spec/models/letter_spec.rb

@@ -21,14 +21,10 @@ describe 'Verification::Letter' do
 
   describe "save" do
 
-    before(:each) do
-      letter = Verification::Letter.new(user: user)
-      letter.save
-      user.reload
-    end
-
     it "should update letter_requested" do
-      expect(user.letter_requested_at).to be
+      letter = build(:verification_letter)
+      letter.save
+      expect(letter.user.letter_requested_at).to be
     end
 
   end
@@ -39,7 +35,7 @@ describe 'Verification::Letter' do
 
     it "incorrect code" do
       letter.user.update(letter_verification_code: "123456")
-      letter.verification_code = nil
+      letter.verification_code = "5555"
 
       expect(letter.valid?).to eq(false)
       expect(letter.errors[:verification_code].first).to eq("Incorrect confirmation code")