{% macro fields(asset, folderTree) %}
<div class="ui-grid ui-grid--2">
  <label class="ui-field"><span class="ui-field__label">视频名</span><input class="textbox ui-field__control" name="videoTitle" required maxlength="160" value="{{ asset.title|default('') }}"></label>
  <label class="ui-field"><span class="ui-field__label">标签</span><input class="textbox ui-field__control" name="tags" maxlength="820" value="{{ asset.tags|join(', ') if asset.tags else '' }}" placeholder="多个标签用逗号分隔"></label>
</div>
<label class="ui-field"><span class="ui-field__label">视频简介</span><textarea class="textbox ui-field__control" name="description" rows="4" maxlength="10000">{{ asset.description|default('') }}</textarea></label>
<label class="ui-field"><span class="ui-field__label">目录（可选）</span><select class="select ui-field__control" name="folderCourseId">
  <option value="">不分类</option>{% for folder in folderTree %}<option value="{{ folder.id }}"{% if asset.folderCourseId == folder.id %} selected{% endif %}>{{ folder.name }}</option>{% endfor %}
</select></label>
{% endmacro %}
{% macro pagination(previousUrl, nextUrl, page, pages, total) %}
<nav class="ui-cluster ui-cluster--between" aria-label="分页">
  <span class="ui-muted">共 {{ total }} 条 · {{ page }} / {{ pages }} 页</span>
  <div class="ui-actions">{% if previousUrl %}<a class="rounded button" rel="prev" href="{{ previousUrl }}">上一页</a>{% endif %}{% if nextUrl %}<a class="rounded button" rel="next" href="{{ nextUrl }}">下一页</a>{% endif %}</div>
</nav>
{% endmacro %}