Module: DataMapper::Is::Indexed::ClassMethods

Defined in:
lib/dm-is-indexed/is/indexed.rb

Instance Method Summary collapse

Instance Method Details

#[](*keys) ⇒ DataMapper::Collection, ...

Allows querying the indexed properties of a Model.

Parameters:

  • keys (Array, Range, Integer, Object) —

    The key to use when querying the Model. If the key is an Integer or a Range, it will select multiple Resources of the Model.

Returns:

  • (DataMapper::Collection, DataMapper::Resource, nil) —

    The selected Resource or Resources.



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# File 'lib/dm-is-indexed/is/indexed.rb', line 22

def [](*keys)
  if keys.length > 1
    super(*keys)
  else
    key = keys[0]
    
    case key
    when Integer, Range
      super(*keys)
    else
      resource = nil

      properties.each do |field|
        if (field.index || field.unique?)
          if field.valid?(key)
            resource = first(field => key)

            break if resource
          end
        end
      end

      return resource
    end
  end
end