Question

我想要的绝对路径是/Users/Hsu-Wei-Cheng/Dropbox/Rails/zeus/public/uploads/local_display_multi_lang/xml/8/results.zip

/uploads/local_display_multi_lang/xml/8/results.zip存储在local_display_multi_lang.result

中

所以我尝试使用Rails.root.join方法获取系统中的绝对路径。

按Rails.root.join("public", local_display_multi_lang.result.to_s)

但它没有用，我得到了:/uploads/local_display_multi_lang/xml/8/results.zip

我犯了什么错误？感谢

[3] pry(#<#<Class:0x007fe7ae84f038>>)> Rails.root.join("public", local_display_multi_lang.result.to_s)
=> #<Pathname:/uploads/local_display_multi_lang/xml/8/results.zip>
[4] pry(#<#<Class:0x007fe7ae84f038>>)> Rails.root
=> #<Pathname:/Users/Hsu-Wei-Cheng/Dropbox/Rails/zeus>
[5] pry(#<#<Class:0x007fe7ae84f038>>)> local_display_multi_lang.result.to_s
=> "/uploads/local_display_multi_lang/xml/8/results.zip"
[6] pry(#<#<Class:0x007fe7ae84f038>>)> Rails.root.join("public")
=> #<Pathname:/Users/Hsu-Wei-Cheng/Dropbox/Rails/zeus/public>
[7] pry(#<#<Class:0x007fe7ae84f038>>)> local_display_multi_lang.result.to_s
=> "/uploads/local_display_multi_lang/xml/8/results.zip"
[8] pry(#<#<Class:0x007fe7ae84f038>>)> Rails.root.join("public", local_display_multi_lang.result.to_s)
=> #<Pathname:/uploads/local_display_multi_lang/xml/8/results.zip>
[9] pry(#<#<Class:0x007fe7ae84f038>>)> Rails.root.join("public", local_display_multi_lang.result)
=> #<Pathname:/uploads/local_display_multi_lang/xml/8/results.zip>

Answer 1

因为local_display_multi_lang.result.to_s是绝对路径。

尝试

Rails.root.join("public", local_display_multi_lang.result.to_s[1..-1])

在某些情况下，Rails.root.join将错过Rails.root路径

1 个答案: