Module: Sequel::SQL::OrderMethods

Included in:

Dataset, LiteralString, ComplexExpression, GenericComplexExpression, GenericExpression, Symbol

Defined in:

lib/sequel/sql.rb

Overview

Methods that create OrderedExpressions, used for sorting by columns or more complex expressions.

Instance Method Summary

• #asc(opts = {}) ⇒ Object

  Mark the receiving SQL column as sorting in an ascending fashion (generally a no-op).

• #desc(opts = {}) ⇒ Object

  Mark the receiving SQL column as sorting in a descending fashion.

Instance Method Details

#asc(opts = {}) ⇒ Object

Mark the receiving SQL column as sorting in an ascending fashion (generally a no-op). Options:

:nulls

Set to :first to use NULLS FIRST (so NULL values are ordered before other values), or :last to use NULLS LAST (so NULL values are ordered after other values).

# File 'lib/sequel/sql.rb', line 435

def asc(opts={})
  OrderedExpression.new(self, false, opts)
end

#desc(opts = {}) ⇒ Object

Mark the receiving SQL column as sorting in a descending fashion. Options:

:nulls

Set to :first to use NULLS FIRST (so NULL values are ordered before other values), or :last to use NULLS LAST (so NULL values are ordered after other values).

# File 'lib/sequel/sql.rb', line 445

def desc(opts={})
  OrderedExpression.new(self, true, opts)
end