如何自动加载 rake 文件中的数据

发布于 2024-12-02 13:24:27 字数 489 浏览 0 评论 0原文

我有一个 rake 任务，用值填充数据库。

这是一个示例：

Icon.create!(  :category_id => category_id,
               :name => "Wink",
               :url => "#{url}wink.png",
               :icon_for => icon_for )

我想做的是自动执行此操作，因为“name”属性只是文件夹中文件的名称，但大写且不结束，而“url”属性只是文件名。

其余的我用变量控制。

有没有一种方法可以像这样：

读取指定文件夹中的文件数量
，循环指定次数，并创建对象，在需要时插入文件名的值。

我该怎么做？

先感谢您。

Rails 3.0.7 红宝石 1.9.2 Mac OSX 10.6

原文

I have a rake task that populates a database with values.

Here is a sample:

Icon.create!(  :category_id => category_id,
               :name => "Wink",
               :url => "#{url}wink.png",
               :icon_for => icon_for )

What I would like to do is automate this as the 'name' attribute is just the name of the file in a folder but Upper case and without ending while the 'url' attribute is just the file name.

The rest I control with variables.

Is there a way I could something like the this:

read the number of files in a specified folder
loop that number of times and create the object inserting the values for the file names where required.

How can I do this?

Thank you in advance.

Rails 3.0.7 Ruby 1.9.2 Mac OSX 10.6

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向地狱狂奔 2024-12-09 13:24:28

是的，您可以在 Ruby 标准库的帮助下做到这一点。您应该了解 File 类和目录类。下面是您的代码的草图：

(Dir.entries("path/to/specified/folder") - ['.','..']).each do |filename|
  Icon.create!(:category_id => category_id,
               :name => filename,
               :url => url + filename,
               :icon_for => icon_for)
end

我将把它作为练习，让您弄清楚如何将文件名的第一个字母大写并去掉扩展名。

Yes, you do that with the help of Ruby's standard libraries. You should learn about the File class and the Dir class. Here's a sketch of what your code could look like:

(Dir.entries("path/to/specified/folder") - ['.','..']).each do |filename|
  Icon.create!(:category_id => category_id,
               :name => filename,
               :url => url + filename,
               :icon_for => icon_for)
end

I'll leave it as an excercise for you to figure out how to capitalize the first letter of the filename and chomp off the extension.

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