fix(referentiel): implement champ_value for referentiel champs

app/models/champs/drop_down_list_champ.rb

@@ -78,19 +78,13 @@ def referentiel_item_column_values
     referentiel_headers.map { |(header, path)| [header, referentiel_item_value(path)] }
   end
 
-  def referentiel_item_first_column_value
-    return nil if referentiel.nil?
-    path = referentiel_headers&.first&.second
-    referentiel_item_value(path)
-  end
-
-  private
-
   def referentiel_headers
     headers = referentiel&.dig('data', 'headers') || []
     headers.map { [_1, Referentiel.header_to_path(_1)] }
   end
 
+  private
+
   def referentiel_from(value)
     if value.present?
       referentiel_item = type_de_champ.referentiel.items.find(value)

app/models/types_de_champ/drop_down_list_type_de_champ.rb

@@ -1,6 +1,15 @@
 # frozen_string_literal: true
 
 class TypesDeChamp::DropDownListTypeDeChamp < TypesDeChamp::TypeDeChampBase
+  def champ_value(champ)
+    if referentiel_mode? && champ.respond_to?(:referentiel) && champ.referentiel.present?
+      path = champ.referentiel_headers&.first&.second
+      champ.referentiel_item_value(path)
+    else
+      super
+    end
+  end
+
   def champ_value_for_export(champ, path = :value)
     if referentiel_mode? && path != :value
       champ.referentiel_item_value(path)
@@ -10,7 +19,7 @@ def champ_value_for_export(champ, path = :value)
   end
 
   def champ_value_for_tag(champ, path = :value)
-    if referentiel_mode?
+    if referentiel_mode? && path != :value
       champ.referentiel_item_value(path)
     else
       super

app/views/shared/champs/drop_down_list/_show.html.haml

@@ -7,7 +7,7 @@
             %p= value
 
   - else
-    %p= champ.referentiel_item_first_column_value
+    %p= champ.to_s
 
 - elsif champ.used_by_routing_rules? && champ.dossier.forced_groupe_instructeur
   %p

spec/models/champs/drop_down_list_champ_spec.rb

@@ -1,9 +1,11 @@
 # frozen_string_literal: true
 
 describe Champs::DropDownListChamp do
-  let(:types_de_champ_public) { [{ type: :drop_down_list, drop_down_other: other }] }
+  let(:types_de_champ_public) { [{ type: :drop_down_list, drop_down_other: other, referentiel:, drop_down_mode: }] }
   let(:procedure) { create(:procedure, types_de_champ_public:) }
   let(:dossier) { create(:dossier, procedure:) }
+  let(:referentiel) { nil }
+  let(:drop_down_mode) { nil }
   let(:champ) { dossier.champs.first.tap { _1.update(value:, other:) } }
   let(:value) { nil }
   let(:other) { nil }
@@ -78,4 +80,24 @@
       end
     end
   end
+
+  describe 'referentiel' do
+    let(:drop_down_mode) { 'advanced' }
+    let(:referentiel) { create(:csv_referentiel, :with_items) }
+    let(:item) { referentiel.items.first }
+    let(:value) { item.id.to_s }
+
+    it '#referentiel_headers' do
+      expect(champ.referentiel_headers).to eq([["option", "option"], ["calorie (kcal)", "calorie_kcal"], ["poids (g)", "poids_g"]])
+    end
+
+    it '#to_s' do
+      expect(champ.value).to eq(value)
+      expect(champ.to_s).to eq(item.value(champ.referentiel_headers.first.second))
+    end
+
+    it '#referentiel_item_column_values' do
+      expect(champ.referentiel_item_column_values).to eq([["option", "fromage"], ["calorie (kcal)", "145"], ["poids (g)", "60"]])
+    end
+  end
 end