Module: ArelOperators::Operators

Defined in:
lib/arel_operators/operators.rb

Instance Method Summary collapse

Instance Method Details

#-(other) ⇒ Object 



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# File 'lib/arel_operators/operators.rb', line 13

def -(other)
  self.and(-other)
end

#-@ ⇒ Object 



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# File 'lib/arel_operators/operators.rb', line 17

def -@
  build_arel_predicate(Arel::Predicates::Not, self)
end

#and(other) ⇒ Object 



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# File 'lib/arel_operators/operators.rb', line 9

def and(other)
  build_arel_predicate(Arel::Predicates::And, self, other)
end

#or(other) ⇒ Object Also known as: |, + 



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# File 'lib/arel_operators/operators.rb', line 3

def or(other)
  build_arel_predicate(Arel::Predicates::Or, self, other)
end

#where(obj, *args) ⇒ Object 



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# File 'lib/arel_operators/operators.rb', line 21

def where(obj, *args)
  return super unless obj.respond_to?(:build_where)
  relation = obj.select(:id)
  other = clone.tap do |c|
    cond = build_where(Arel::Predicates::In.new(relation.primary_key, relation.arel))
    c.where_values = Array.wrap(cond)
  end
  self.and(other)
end