def create
    @institution = Institution.new(institution_params.except(:admin), as: :admin)
    if @institution.save_with_admin(login: institution_params[:admin]
      redirect_to admin_institutions_path, flash: {
        success: "Institution created."
      }
    else
      flash.now[:error] = 'Unable to create institution.'
      render :new
    end
  end