fastadmin json形式的數據form表單

<div class="form-group">
    <label class="control-label col-xs-12 col-sm-2">{:__('選項')}:</label>
    <div class="col-xs-12 col-sm-8">

        <dl class="fieldlist" data-name="row[configjson]">
            <dd>
                <ins>{:__('Key')}</ins>
                <ins>{:__('Value')}</ins>
            </dd>
            <dd><a href="javascript:;" class="btn btn-sm btn-success btn-append"><i class="fa fa-plus"></i>
                {:__('Append')}</a></dd>
            <textarea name="row[configjson]" class="form-control hide" cols="30" rows="5"></textarea>
        </dl>
    </div>
</div>