Class: ApplicationConfig::ConfigBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/application_config/config_builder.rb

Overview

Summary

This is API documentation, NOT documentation on how to use this plugin. For that, see the README.

Class Method Summary collapse

Class Method Details

.convert(h) ⇒ Object

Recursively converts Hashes to OpenStructs (including Hashes inside Arrays)



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# File 'lib/application_config/config_builder.rb', line 36

def self.convert(h) #:nodoc:
  s = OpenStruct.new
  h.each do |k, v|
    s.new_ostruct_member(k)
    if v.instance_of?(Hash)
      s.send( (k+'=').to_sym, convert(v))
    elsif v.instance_of?(Array)
      converted_array = v.collect { |e| e.instance_of?(Hash) ? convert(e) : e }
      s.send("#{k}=".to_sym, converted_array)
    else
      s.send("#{k}=".to_sym, v)
    end
  end
  s
end

.load_files(*conf_load_paths) ⇒ Object

Create a config object (OpenStruct) from a yaml file. If a second yaml file is given, then the sections of that file will overwrite the sections if the first file if they exist in the first file.



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# File 'lib/application_config/config_builder.rb', line 12

def self.load_files(*conf_load_paths)
  config = OpenStruct.new
  config.load_paths = []
  config.load_paths << conf_load_paths
  config.load_paths.flatten!.uniq!
  
  # add singleton method to our AppConfig that reloads its settings from the load_paths options
  def config.reload!
    conf = {:load_paths => self.load_paths}
    self.load_paths.to_a.each do |path|
      file_conf = YAML.load(ERB.new(IO.read(path)).result) if path and File.exists?(path)
      conf.merge!(file_conf) if file_conf
    end
    
    # load all the new values into the openstruct
    marshal_load(ApplicationConfig::ConfigBuilder.convert(conf).marshal_dump)
    return self
  end

  config.reload!
  return config
end