Class: ConceptQL::Nodifier

Inherits:
Object
  • Object
show all
Defined in:
lib/conceptql/nodifier.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Nodifier

Returns a new instance of Nodifier.



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# File 'lib/conceptql/nodifier.rb', line 9

def initialize
  @operators = {}
  dir = Pathname.new(__FILE__).dirname()
  dir.chdir do
    Pathname.glob("operators/*.rb").each do |file|
      require_relative file
      operator = file.basename('.*').to_s.to_sym
      klass = Object.const_get("conceptQL/operators/#{operator}".modulize)
      @operators[operator] = klass
    end
  end
end

Instance Attribute Details

#operators ⇒ Object (readonly)

Returns the value of attribute operators.



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# File 'lib/conceptql/nodifier.rb', line 7

def operators
  @operators
end

Instance Method Details

#create(scope, operator, *values) ⇒ Object 



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# File 'lib/conceptql/nodifier.rb', line 22

def create(scope, operator, *values)
  operator = operator.to_sym
  if operators[operator].nil?
    raise "Can't find operator for '#{operator}' in #{operators.keys.sort}"
  end
  operator = operators[operator].new(*values)
  operator.scope = scope
  operator
end

#to_metadata ⇒ Object 



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# File 'lib/conceptql/nodifier.rb', line 32

def to_metadata
  Hash[operators.map { |k, v| [k, v.to_metadata]}.select { |k, v| v[:desc] }]
end