在视图中显示Carrierwave文件名 [英] Displaying a Carrierwave filename in the view

问题描述

我正在尝试在Rails erb模板中显示Carrierwave附件的文件名。以下内容不起作用：

I am trying to display the filename of a Carrierwave attachment in a Rails erb template. The following does not work:

<%= @page.form.filename %>

这似乎与文档。还需要其他步骤吗？

This seems in line with the documentation. Is some additional step needed?

我的页面模型如下：

class Page < ActiveRecord::Base

  mount_uploader :form, FormUploader

end

表单上载器如下：

class FormUploader < CarrierWave::Uploader::Base

  storage :file

  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  def extension_white_list
    %w(pdf)
  end

end

推荐答案

您正在查看的文档是经过清理的文件，它就是它用于实际存储文件。您要找的部分是FormUploader，它是一个上载器，并且是 http的一部分：//rubydoc.info/gems/carrierwave/0.5.2/CarrierWave/Uploader

The documentation you're looking at is the sanitized file, it's what it uses for actually storing a file. The part you're looking for is FormUploader, which is an Uploader, and part of http://rubydoc.info/gems/carrierwave/0.5.2/CarrierWave/Uploader

如果要获取文件名，则可以阅读直接从数据库列中提取，或使用 File.basename（@ page.form.path）轻松提取。

If you want to get the file name, you could either read it from the database column directly, or use File.basename(@page.form.path) to extract it easily.

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