Method: Sequel::SQL::Builders#negate

Defined in:
lib/sequel/sql.rb

#negate(arg) ⇒ Object

Return a Sequel::SQL::BooleanExpression created from the condition specifier, matching none of the conditions.

Sequel.negate(a: true) # SQL: a IS NOT TRUE
Sequel.negate([[:a, true]]) # SQL: a IS NOT TRUE
Sequel.negate([[:a, 1], [:b, 2]]) # SQL: ((a != 1) AND (b != 2))



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# File 'lib/sequel/sql.rb', line 621

def negate(arg)
  if condition_specifier?(arg)
    SQL::BooleanExpression.from_value_pairs(arg, :AND, true)
  else
    raise Error, 'must pass a conditions specifier to Sequel.negate'
  end
end