validates invoice&avoir creation to prevent any creation in closed period

app/models/invoice.rb

@@ -17,6 +17,8 @@ class Invoice < ActiveRecord::Base
   after_create :update_reference
   after_commit :generate_and_send_invoice, on: [:create], if: :persisted?
 
+  validates_with ClosedPeriodValidator
+
   def file
     dir = "invoices/#{user.id}"
 

app/validators/closed_period_validator.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+# Validates the current invoice is not generated within a closed accounting period
+class ClosedPeriodValidator < ActiveModel::Validator
+  def validate(record)
+    date = if record.is_a?(Avoir)
+             record.avoir_date
+           else
+             DateTime.now
+           end
+
+
+    AccountingPeriod.all.each do |period|
+      record.errors[:date] << I18n.t('errors.messages.in_closed_period') if date >= period.start_at && date <= period.end_at
+    end
+  end
+end

config/locales/en.yml

@@ -38,6 +38,7 @@ en:
       cannot_be_before_previous_value: "cannot be before the previous value"
       cannot_overlap: "can't overlap an existing accounting period"
       cannot_encompass: "can't encompass an existing accounting period"
+      in_closed_period: "can't be within a closed accounting period"
 
   activemodel:
     errors:

config/locales/es.yml

@@ -38,6 +38,7 @@ es:
       cannot_be_before_previous_value: "No puede estar antes del valor anterior."
       cannot_overlap: "can't overlap an existing accounting period"                        # missing translation
       cannot_encompass: "can't encompass an existing accounting period"                    # missing translation
+      in_closed_period: "can't be within a closed accounting period"                       # missing translation
 
   activemodel:
     errors:

config/locales/fr.yml

@@ -38,6 +38,7 @@ fr:
       cannot_be_before_previous_value: "ne peut pas être antérieur(e) à la valeur précédente"
       cannot_overlap: "ne peut pas chevaucher une période comptable existante"
       cannot_encompass: "ne peut pas englober une période comptable existante"
+      in_closed_period: "ne peut pas être dans une période comptable fermée"
 
   activemodel:
     errors:

config/locales/pt.yml

@@ -38,6 +38,7 @@ pt:
       cannot_be_before_previous_value: "não pode ser antes do valor anterior"
       cannot_overlap: "can't overlap an existing accounting period"                        # missing translation
       cannot_encompass: "can't encompass an existing accounting period"                    # missing translation
+      in_closed_period: "can't be within a closed accounting period"                       # missing translation
 
   activemodel:
     errors: