<div class="modal fade admin-users-reward-grade-modal" tabindex="-1" role="dialog" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">奖励金币</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <form class="admin-users-reward-grade-form">
          <%= hidden_field_tag(:user_id, nil) %>
          <div class="form-group">
            <label for="grade" class="col-form-label">金币数量:</label>
            <%= number_field_tag(:grade, nil, class: 'form-control') %>
          </div>
          <div class="error text-danger"></div>
        </form>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">取消</button>
        <button type="button" class="btn btn-primary submit-btn">确认</button>
      </div>
    </div>
  </div>
</div>