Link_to href和文本混淆

Question

我有一个页面的文档下载功能。这是代码

%td= link_to upload.file, '#', class: " bogus btn btn-xs #{'btn-primary' if upload.published}"

问题在于产生以下html：

<a href="#" class=" bogus btn btn-xs btn-primary" data-original-title="" title="">/public/uploads/file/46/random.txt</a>

我认为这就像将结构改为此一样简单：

%td= link_to '#', upload.file, class: " bogus btn btn-xs #{'btn-primary' if upload.published}"

会导致以下html：

<a href="/public/uploads/file/46/random.txt" class=" bogus btn btn-xs btn-primary" data-original-title="" title="">#</a>

然而，这会导致以下错误：

undefined method `model_name' for FileUploader:Class

Answer 1

你可以试试这样的事情<%= link_to "#", upload.file.url, class: " bogus btn btn-xs #{'btn-primary' if upload.published}" %>