Class: Ki::DirectoryWithChildrenInListFile

Inherits:
Object
  • Object
show all
Defined in:
lib/data_storage/ki_json.rb

Overview

Helper method for creating list files.

Class Method Summary collapse

Class Method Details

.add_list_file(obj, clazz, name = nil) ⇒ Object

Helper method for creating list files. When called on a class it extends the class with:

  • class extending KiJSONListFile which stores list items: class VersionListFile

  • method to load the file: versions()

  • method to load a specific item from list file: version(version_id, versions_list=versions)



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# File 'lib/data_storage/ki_json.rb', line 120

def self.add_list_file(obj, clazz, name=nil)
  stripped_class_name = clazz.name.split("::").last
  class_name = clazz.name
  list_class_name = "#{stripped_class_name}ListFile"
  create_id_name = stripped_class_name.gsub(/.[A-Z]/) { |s| "#{s[0]}_#{s[1]}" }.downcase
  if name.nil?
    name = create_id_name
  end
  pluralized_name = "#{name}s".gsub(/ys$/, "ies")
  new_methods = <<METHODS
  class #{list_class_name} < KiJSONListFile
def create_list_item(#{name}_id)
  i = #{class_name}.new(#{name}_id)
  i.parent(parent)
  i.#{create_id_name}_id(#{name}_id)
  i
end
  end

  def #{pluralized_name}
  #{list_class_name}.new("ki-#{pluralized_name}.json").parent(self)
  end

  def #{name}(#{name}_id, #{pluralized_name}_list=#{pluralized_name})
#{pluralized_name}_list.each do |c|
  if c.#{name}_id == #{name}_id
    return c
  end
end
raise "#{class_name} '\#{#{name}_id}' not found"
  end
METHODS
  obj.class_eval(new_methods, __FILE__, (__LINE__ - new_methods.split("\n").size - 1))
end