将数组拆分为逗号分隔的值列表

I'm working on a bit of metaprogramming using send methods quite a bit. I've been successful so far because the methods I'm sending to only take one argument.

我正在使用send方法进行一些元编程。到目前为止我已经成功了,因为我发送的方法只有一个参数。

Example:

client is an API client

客户端是API客户端

@command is a method on client taken as an option to a CLI utility

@command是客户端上的一种方法,作为CLI实用程序的选项

@verb is a method on command taken as another option in the CLI

@verb是一种命令方法,作为CLI中的另一个选项

def command_keys
  case @command
  when "something"
    self.command_options.slice(:some, :keys)
  end
end

Then I call the API client like this:

然后我像这样调用API客户端:

client.send(@command).send(@verb, command_keys)

This works since the methods all take a Hash as their argument. The problem I've run into is when I need to send more than 1 parameter in command_keys. What I'm wondering is the best way to handle the command_keys method returning more than 1 value. Example:

这是有效的,因为这些方法都以哈希为参数。我遇到的问题是当我需要在command_keys中发送多个参数时。我想知道的是处理command_keys方法返回多个值的最佳方法。例:

def command_keys
  case @command
  when "something"
    return self.command_options[:some], self.command_options[:keys]
  end
end

In this case, command_keys returns an Array as expected, but when I try to pass that in the send(@verb, command_options) call, it passes it as an Array (which is obviously expected). So, to make a long story short, is there some easy way to make this condition be handled easily?

在这种情况下,command_keys按预期返回一个数组,但是当我尝试在send(@verb,command_options)调用中传递它时,它将它作为一个数组传递(显然是期望的)。因此,总而言之,是否有一些简单的方法可以轻松处理这种情况?

I know send(@verb, argument1, argument2) would get me the result I want, but I would like to be able to not have to give my script any more implementation logic than it needs, that is to say I would like it to remain as abstracted as possible.

我知道send(@verb,argument1,argument2)会得到我想要的结果,但是我希望能够不再给我的脚本提供比它需要的更多的实现逻辑,也就是说我想要它保持尽可能抽象。

1 个解决方案

#1

Use splat. You might have to rethink the code a bit, but something like:

使用splat。您可能需要重新考虑一下代码,但类似于:

client.send(@command).send(@verb, *all_the_args)