Module: Sequel::SQL::BooleanMethods

Included in:
Dataset, LiteralString, BooleanExpression, GenericComplexExpression, GenericExpression, Symbol
Defined in:
lib/sequel/sql.rb

Overview

This module includes the boolean/logical AND (&), OR (|) and NOT (~) operators that are defined on objects that can be used in a boolean context in SQL (Symbol, LiteralString, and SQL::GenericExpression).

:a & :b # "a" AND "b"
:a | :b # "a" OR "b"
~:a # NOT "a"

Instance Method Summary collapse

Instance Method Details

#~ ⇒ Object

Create a new BooleanExpression with NOT, representing the inversion of whatever self represents.

~:a # NOT :a



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# File 'lib/sequel/sql.rb', line 267

def ~
  BooleanExpression.invert(self)
end