Individual: save the birthdate in Y

app/models/individual.rb

@@ -8,6 +8,7 @@ class Individual < ApplicationRecord
   validates :birthdate, format: { with: /\A\d{4}\-\d{2}\-\d{2}\z/, message: "La date n'est pas au format AAAA-MM-JJ" }, allow_nil: true
 
   before_validation :set_iso_date, if: -> { birthdate_changed? }
+  before_save :save_birthdate_in_datetime_format
 
   private
 
@@ -17,4 +18,13 @@ class Individual < ApplicationRecord
       self.birthdate = Date.parse(birthdate).iso8601
     end
   end
+
+  def save_birthdate_in_datetime_format
+    if birthdate.present?
+      begin
+        self.second_birthdate = Date.parse(birthdate)
+      rescue
+      end
+    end
+  end
 end

spec/models/individual_spec.rb

@@ -23,6 +23,7 @@ describe Individual do
 
         it { expect(individual.valid?).to be true }
         it { expect(individual.birthdate).to eq("1980-11-12") }
+        it { expect(individual.second_birthdate).to eq(Date.new(1980, 11, 12)) }
       end
 
       context "and the format is ISO" do
@@ -30,6 +31,7 @@ describe Individual do
 
         it { expect(individual.valid?).to be true }
         it { expect(individual.birthdate).to eq("1980-11-12") }
+        it { expect(individual.second_birthdate).to eq(Date.new(1980, 11, 12)) }
       end
 
       context "and the format is WTF" do
@@ -37,6 +39,7 @@ describe Individual do
 
         it { expect(individual.valid?).to be false }
         it { expect(individual.birthdate).to eq("1980 1 12") }
+        it { expect(individual.second_birthdate).to be_nil }
       end
     end
   end