Module: Arel::Attribute::Expressions

Included in:
Arel::Attribute, SqlLiteral
Defined in:
lib/arel/algebra/attributes/attribute.rb

Instance Method Summary collapse

Instance Method Details

#average ⇒ Object 



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# File 'lib/arel/algebra/attributes/attribute.rb', line 246

def average
  Average.new(self)
end

#count(distinct = false) ⇒ Object 



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# File 'lib/arel/algebra/attributes/attribute.rb', line 230

def count(distinct = false)
  distinct ?  Distinct.new(self).count :  Count.new(self)
end

#maximum ⇒ Object 



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# File 'lib/arel/algebra/attributes/attribute.rb', line 238

def maximum
  Maximum.new(self)
end

#minimum ⇒ Object 



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# File 'lib/arel/algebra/attributes/attribute.rb', line 242

def minimum
  Minimum.new(self)
end

#sum ⇒ Object 



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# File 'lib/arel/algebra/attributes/attribute.rb', line 234

def sum
  Sum.new(self)
end