/**
  * Create the DB scheme.
  * @return null;
  */
 public function up()
 {
     \Schema::dropIfExists('axc_data_management_email');
     \Schema::create('axc_data_management_email', function ($table) {
         SchemaHelper::init($table);
         $table->string('type')->unique()->index();
         $table->string('address')->unique();
         SchemaHelper::addBoolean($table, 'principal');
         SchemaHelper::addPosition($table);
         SchemaHelper::addPublished($table);
         SchemaHelper::addChangedAt($table);
         SchemaHelper::addChangedBy($table);
         SchemaHelper::avoidDelete($table);
     });
 }