add table Champs

db/migrate/20151103091603_create_champs.rb

@@ -0,0 +1,9 @@
+class CreateChamps < ActiveRecord::Migration
+  def change
+    create_table :champs do |t|
+      t.string :value
+    end
+    add_reference :champs, :type_de_champs, references: :types_de_champs
+    add_reference :champs, :dossier, references: :dossiers
+  end
+end