Add reason to DeletedDossier

# Conflicts:
#	db/schema.rb

app/models/deleted_dossier.rb

@@ -1,7 +1,20 @@
 class DeletedDossier < ApplicationRecord
   belongs_to :procedure
 
-  def self.create_from_dossier(dossier)
-    DeletedDossier.create!(dossier_id: dossier.id, procedure: dossier.procedure, state: dossier.state, deleted_at: Time.zone.now)
+  enum reason: {
+    user_request:    'user_request',
+    manager_request: 'manager_request',
+    user_removed:    'user_removed',
+    expired:         'expired'
+  }
+
+  def self.create_from_dossier(dossier, reason)
+    create!(
+      reason: reasons.fetch(reason),
+      dossier_id: dossier.id,
+      procedure: dossier.procedure,
+      state: dossier.state,
+      deleted_at: Time.zone.now
+    )
   end
 end

db/migrate/20200319103836_add_reason_to_deleted_dossiers.rb

@@ -0,0 +1,5 @@
+class AddReasonToDeletedDossiers < ActiveRecord::Migration[5.2]
+  def change
+    add_column :deleted_dossiers, :reason, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_03_04_155418) do
+ActiveRecord::Schema.define(version: 2020_03_19_103836) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -213,6 +213,7 @@ ActiveRecord::Schema.define(version: 2020_03_04_155418) do
     t.string "state"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.string "reason"
     t.index ["procedure_id"], name: "index_deleted_dossiers_on_procedure_id"
   end