Show procedure link in manager view

app/dashboards/procedure_dashboard.rb

@@ -10,6 +10,7 @@ class ProcedureDashboard < Administrate::BaseDashboard
   ATTRIBUTE_TYPES = {
     types_de_piece_justificative: TypesDePieceJustificativeCollectionField,
     types_de_champ: TypesDeChampCollectionField,
+    path: ProcedureLinkField,
     dossiers: Field::HasMany,
     procedure_path: Field::HasOne,
     administrateur: Field::BelongsTo,
@@ -47,6 +48,7 @@ class ProcedureDashboard < Administrate::BaseDashboard
   # an array of attributes that will be displayed on the model's show page.
   SHOW_PAGE_ATTRIBUTES = [
     :id,
+    :path,
     :administrateur,
     :libelle,
     :description,

app/fields/procedure_link_field.rb

@@ -0,0 +1,7 @@
+require "administrate/field/base"
+
+class ProcedureLinkField < Administrate::Field::Base
+  def name
+    "Lien procédure"
+  end
+end

app/views/fields/procedure_link_field/_show.html.haml

@@ -0,0 +1,4 @@
+- if field.data.present?
+  = link_to "/commencer/#{field.data}", commencer_url(procedure_path: field.data), target: '_blank'
+- else
+  Plus en ligne