Class: Arel::Predicates::Binary

Inherits:
Predicate show all
Defined in:
lib/arel/algebra/predicates.rb,
lib/arel/engines/sql/predicates.rb,
lib/arel/engines/memory/predicates.rb

Instance Method Summary collapse

Methods inherited from Predicate

#and, #complement, #not, #or

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/arel/algebra/predicates.rb', line 93

def ==(other)
  self.class === other          and
  @operand1  ==  other.operand1 and
  @operand2  ==  other.operand2
end

#bind(relation) ⇒ Object 



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# File 'lib/arel/algebra/predicates.rb', line 99

def bind(relation)
  self.class.new(operand1.find_correlate_in(relation), operand2.find_correlate_in(relation))
end

#eval(row) ⇒ Object 



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# File 'lib/arel/engines/memory/predicates.rb', line 4

def eval(row)
  operand1.eval(row).send(operator, operand2.eval(row))
end

#to_sql(formatter = nil) ⇒ Object 



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# File 'lib/arel/engines/sql/predicates.rb', line 4

def to_sql(formatter = nil)
  "#{operand1.to_sql} #{predicate_sql} #{operand1.format(operand2)}"
end