Enable the use of the "send" method on the configuration object

[fusillicode]

While trying to set up a bunch of options identified by variables name I got stuck with the inability to use the method "send".

Here's the problematic snippet of code:

MyGem.configure do |c|
    # 'configs' and 'cli_options' are just two hashes. I've left out their construction to focus on the key point of the issue
    configs.deep_merge(cli_options).map do |key, value|
      c.send "#{key}=", value
    end
  end
end

If I've left out some important information or if the issue isn't appropriate for some reasons please forgive me.

Cheers.

[beatrichartz]

Hi there!

You can use from_h to achieve what you want:

MyGem.configure do |c|
  c.from_h(configs.deep_merge(cli_options))
end

If your configuration is using strict mode (defined attributes), you can use a shorthand:

MyGem.configuration.from_h(configs.deep_merge(cli_options))

If you still want to use send, use __send__

Cheers

[fusillicode]

Ty a lot for the quick reply!

I think I'm missing something here. I've already tried with from_h but it doesn't works.

If I try to access a configuration value I get nil in response :(

[fusillicode]

Ok, got it!

The problem are the hash keys. They're strings, not symbols.

Now I've only a "design" question. Personally I think it would be great if configurations would handle transparently strings as well as symbols. From the other side I also think that the user should worry to supply the correct input to the gem.

What do you think? Would you accept a pull request to add this "sugar" to the gem?

P.S: forgive again for the bother and ty again for your helpfulness.

[beatrichartz]

Cool. I'll put some thought into handling strings in from_h - the fact it does not handle strings is more incidental atm.

[fusillicode]

Roger that.

Anyway, jftr, a quick fix could be to explicitly transform the property passed to the __assign! method in the Configuration class (line 153) to a symbol.

If there is something I can do let me know, I'll stick around ;)

Ty again.

[beatrichartz]

Released configuration with hashes with string keys in 2.1.0.