Class: Komagire::KeyList::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/komagire/key_list.rb

Direct Known Subclasses

IdList::Converter

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content_class_name, attribute, delimiter) ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/komagire/key_list.rb', line 69

def initialize(content_class_name, attribute, delimiter)
  @content_class_name = content_class_name
  @attribute = attribute
  @delimiter = delimiter
end

Instance Attribute Details

#attribute ⇒ Object (readonly)

Returns the value of attribute attribute.



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# File 'lib/komagire/key_list.rb', line 67

def attribute
  @attribute
end

#content_class_name ⇒ Object (readonly)

Returns the value of attribute content_class_name.



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# File 'lib/komagire/key_list.rb', line 67

def content_class_name
  @content_class_name
end

#delimiter ⇒ Object (readonly)

Returns the value of attribute delimiter.



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# File 'lib/komagire/key_list.rb', line 67

def delimiter
  @delimiter
end

Instance Method Details

#convert(value) ⇒ Object 



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# File 'lib/komagire/key_list.rb', line 75

def convert(value)
  convert_to_cskeys(value) || ''
end

#convert_to_cskeys(value) ⇒ Object 



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# File 'lib/komagire/key_list.rb', line 79

def convert_to_cskeys(value)
  case value
  when String
    value
  when Komagire::KeyList
    if value.content_class_name == content_class_name && value.attribute == attribute
      return value.cskeys
    end

    raise DifferentContentClass
  else
    values = if value.is_a?(Array) then value
             elsif value.respond_to?(:to_a) then value.to_a
             elsif value.respond_to?(:to_ary) then value.to_ary
             else
               raise ArgumentError
             end
    convert_to_cskeys_from_array(values.compact)
  end
end

#convert_to_cskeys_from_array(values) ⇒ Object 



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# File 'lib/komagire/key_list.rb', line 100

def convert_to_cskeys_from_array(values)
  if values.all? { |v| v.is_a?(String) }
    values.join(delimiter)
  elsif values.all? { |v| v.is_a?(content_class_name.constantize) }
    values.map(&attribute).join(delimiter)
  else
    raise ArgumentError
  end
end