'Render the card body
@param list_id: the HTML ID of the list
@param item_id: the HTML ID of the item
@param resource: the S3Resource to render
@param rfields: the S3ResourceFields to render
@param record: the record as dict'

def render_body(self, list_id, item_id, resource, rfields, record):

    pkey = str(resource._id)
    body = DIV(_class='media-body')
    render_column = self.render_column
    for rfield in rfields:
        if ((not rfield.show) or (rfield.colname == pkey)):
            continue
        column = render_column(item_id, rfield, record)
        if (column is not None):
            table_class = ('dl-table-%s' % rfield.tname)
            field_class = ('dl-field-%s' % rfield.fname)
            body.append(DIV(column, _class=('dl-field    %s    %s' % (table_class, field_class))))
    return DIV(body, _class='media')
