Module: Arel::Expression::Transformations

Included in:
Arel::Expression
Defined in:
lib/arel/algebra/expression.rb

Instance Method Summary collapse

Instance Method Details

#as(aliaz) ⇒ Object 



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# File 'lib/arel/algebra/expression.rb', line 21

def as(aliaz)
  self.class.new(attribute, aliaz, self)
end

#bind(new_relation) ⇒ Object 



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# File 'lib/arel/algebra/expression.rb', line 25

def bind(new_relation)
  new_relation == relation ? self : self.class.new(attribute.bind(new_relation), @alias, self)
end

#to_attribute(relation) ⇒ Object 



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# File 'lib/arel/algebra/expression.rb', line 29

def to_attribute(relation)
  Attribute.new(relation, @alias, :ancestor => self)
end