Module: Zena::Use::NestedAttributesAlias::ClassMethods

Defined in:
lib/zena/use/nested_attributes_alias.rb

Overview

ModelMethods

Instance Method Summary collapse

Instance Method Details

#nested_attr_alias_list ⇒ Object

Return the list of all ordered routes, including routes defined in the superclass



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# File 'lib/zena/use/nested_attributes_alias.rb', line 148

def nested_attr_alias_list
  @@_nested_attr_alias_list[self] ||= if superclass.respond_to?(:nested_attributes_alias)
    # merge with superclass attributes
    list = superclass.nested_attr_alias_list.dup
    (@@_nested_attr_alias[self] || []).each do |regex, method|
      list.reject! do |k, v|
        # allow new rule to overwrite parent rule
        k == regex
      end
      list << [regex, method]
    end
    list
  else
    # top class, nothing to inherit
    @@_nested_attr_alias[self] || []
  end
end

#nested_attributes_alias(definitions) ⇒ Object 



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# File 'lib/zena/use/nested_attributes_alias.rb', line 166

def nested_attributes_alias(definitions)
  list = (@@_nested_attr_alias[self] ||= [])
  definitions.each do |regexp, target|
    # allow new rule to overwrite rule previously defined
    list.reject! {|k, v| k == regexp}

    if target.kind_of?(String)
      target = target.split(".")
    end
    list << [regexp, target]
  end
end

#nested_model_names_for_alias(attribute) ⇒ Object

Same as model method but will not take Proc type resolution. This could be used by RubyLess to resolve ‘title’ into ==> version ==> title we will see…



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# File 'lib/zena/use/nested_attributes_alias.rb', line 182

def nested_model_names_for_alias(attribute)
  attribute = attribute.to_s
  nested_model_names = nil
  nested_attr_alias_list.each do |regexp, target|
    if attribute =~ regexp
      if target.kind_of?(Proc)
        # ignore
      else
        nested_model_names = target + [$1]
        break
      end
    end
  end
  nested_model_names
end