读取 ruby on rails 目录中的文件
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Read files in directory on ruby on rails
提问by Adnan Khan
I am new in ruby on rails and I want to read file names from a specified directory. Can anyone suggest code or any other links?
我是 ruby on rails 的新手，我想从指定的目录中读取文件名。任何人都可以建议代码或任何其他链接吗？
Thanks
谢谢
回答by Stobbej
回答by Sumit Munot
If you want to get all file under particular folder in array:
如果要获取数组中特定文件夹下的所有文件：
files = Dir.glob("#{Rails.root}/private/**/*")
#=> ["/home/demo/private/sample_test.ods", "/home/demo/private/sample_test_two.ods", "/home/demo/private/sample_test_three.ods", "/home/demo/private/sample_test_one.ods"]
回答by Dylan Markow
If you want to pull up a filtered list of files, you can also use Dir.glob:
如果要提取过滤的文件列表，还可以使用Dir.glob：
Dir.glob("*.rb")
# => ["application.rb", "environment.rb"]
回答by erimicel
you can basically just get filenames with File.basename(file)
你基本上可以得到文件名 File.basename(file)
Dir.glob("path").map{ |s| File.basename(s) }
回答by escanxr
With Rails, you should use Rails.root.join, it's cleaner.
使用 Rails，你应该使用Rails.root.join，它更干净。
files = Dir.glob(Rails.root.join(‘path', ‘to', ‘folder'))
files = Dir.glob(Rails.root.join(‘path', ‘to', ‘folder'))
Then you get an array with files path
然后你得到一个带有文件路径的数组
回答by Игорь Хлебников
at first, you have to correctly create the path to your target folder
首先，您必须正确创建目标文件夹的路径
so example, when your target folder is 'models' in 'app' folder
例如，当您的目标文件夹是“app”文件夹中的“models”时
target_folder_path = File.join(Rails.root, "/app/models")
and then this returns an array containing all of the filenames
然后这将返回一个包含所有文件名的数组
Dir.children(target_folder_path)
also this code returns array without “.” and “..”
此代码也返回没有“。”的数组 和 ”..”
回答by Flavio Wuensche
If you're looking for relative paths from your Rails root folder, you can just use Dir, such as:
如果您要从 Rails 根文件夹中查找相对路径，则可以使用Dir，例如：
Dir["app/javascript/content/**/*"]
would return, for instance:
会返回，例如：
["app/javascript/content/Rails Models.md", "app/javascript/content/Rails Routing.md"]
