def calculate(operation, column_name, options = {})
if options.except(:distinct).present?
apply_finder_options(options.except(:distinct)).calculate(operation, column_name, :distinct => options[:distinct])
else
relation = with_default_scope
if relation.equal?(self)
if eager_loading? || (includes_values.present? && references_eager_loaded_tables?)
construct_relation_for_association_calculations.calculate(operation, column_name, options)
else
perform_calculation(operation, column_name, options)
end
else
relation.calculate(operation, column_name, options)
end
end
rescue ThrowResult
0
end