Class: ChefApply::Text::TextWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/chef_apply/text/text_wrapper.rb

Overview

Our text spinner class really doesn’t like handling the TranslatedString or Untranslated classes returned by the R18n library. So instead we return these TextWrapper instances which have dynamically defined methods corresponding to the known structure of the R18n text file. Most importantly, if a user has accessed a leaf node in the code we return a regular String instead of the R18n classes.

Defined Under Namespace

Classes: InvalidKey, MissingPlural, TextError

Instance Method Summary collapse

Constructor Details

#initialize(translation_tree) ⇒ TextWrapper

Returns a new instance of TextWrapper.



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# File 'lib/chef_apply/text/text_wrapper.rb', line 25

def initialize(translation_tree)
  @tree = translation_tree
  @tree.translation_keys.each do |k|
    # Integer keys are not translatable - they're quantity indicators in the key that
    # are instead sent as arguments. If we see one here, it means it was not correctly
    # labeled as plural with !!pl in the parent key
    if k.class == Integer
      raise MissingPlural.new(@tree.instance_variable_get(:@path), k)
    end

    k = k.to_sym
    define_singleton_method k do |*args|
      subtree = @tree.send(k, *args)
      if subtree.translation_keys.empty?
        # If there are no more possible children, just return the translated value
        subtree.to_s
      else
        TextWrapper.new(subtree)
      end
    end
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

Raises:



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# File 'lib/chef_apply/text/text_wrapper.rb', line 48

def method_missing(name, *args)
  raise InvalidKey.new(@tree.instance_variable_get(:@path), name)
end