Procedure: add #new_dossier

Create a new instance of a dossier and its champs without saving them in the db

app/models/procedure.rb

@@ -47,6 +47,20 @@ class Procedure < ApplicationRecord
   validates :description, presence: true, allow_blank: false, allow_nil: false
   validates :organisation, presence: true, allow_blank: false, allow_nil: false
 
+  # Warning: dossier after_save build_default_champs must be removed
+  # to save a dossier created from this method
+  def new_dossier
+    champs = types_de_champ
+      .ordered
+      .map { |tdc| tdc.champ.build }
+
+    champs_private = types_de_champ_private
+      .ordered
+      .map { |tdc| tdc.champ.build }
+
+    Dossier.new(procedure: self, champs: champs, champs_private: champs_private)
+  end
+
   def hide!
     now = DateTime.now
     self.update(hidden_at: now)

app/models/type_de_champ.rb

@@ -28,6 +28,7 @@ class TypeDeChamp < ApplicationRecord
 
   scope :public_only, -> { where(private: false) }
   scope :private_only, -> { where(private: true) }
+  scope :ordered, -> { order(order_place: :asc) }
 
   has_many :champ, inverse_of: :type_de_champ, dependent: :destroy do
     def build(params = {})

spec/models/procedure_spec.rb

@@ -636,4 +636,28 @@ describe Procedure do
       it { is_expected.to eq("dossiers_procedure-#{procedure.id}_2018-01-02_23-11") }
     end
   end
+
+  describe '#new_dossier' do
+    let(:procedure) do
+      procedure = create(:procedure)
+
+      create(:type_de_champ_text, procedure: procedure, order_place: 1)
+      create(:type_de_champ_number, procedure: procedure, order_place: 2)
+      create(:type_de_champ_textarea, :private, procedure: procedure)
+
+      procedure
+    end
+
+    let(:dossier) { procedure.new_dossier }
+
+    it { expect(dossier.procedure).to eq(procedure) }
+
+    it { expect(dossier.champs.size).to eq(2) }
+    it { expect(dossier.champs[0].type).to eq("Champs::TextChamp") }
+
+    it { expect(dossier.champs_private.size).to eq(1) }
+    it { expect(dossier.champs_private[0].type).to eq("Champs::TextareaChamp") }
+
+    it { expect(Champ.count).to eq(0) }
+  end
 end