instance method
not
Ruby on Rails 5.2.8.1
Since v4.0.13Signature
not(opts, *rest)Returns a new relation expressing WHERE + NOT condition according to the conditions in the arguments.
#not accepts conditions as a string, array, or hash. See QueryMethods#where for more details on each format.
User.where.not("name = 'Jon'")
# SELECT * FROM users WHERE NOT (name = 'Jon')
User.where.not(["name = ?", "Jon"])
# SELECT * FROM users WHERE NOT (name = 'Jon')
User.where.not(name: "Jon")
# SELECT * FROM users WHERE name != 'Jon'
User.where.not(name: nil)
# SELECT * FROM users WHERE name IS NOT NULL
User.where.not(name: %w(Ko1 Nobu))
# SELECT * FROM users WHERE name NOT IN ('Ko1', 'Nobu')
User.where.not(name: "Jon", role: "admin")
# SELECT * FROM users WHERE name != 'Jon' AND role != 'admin'
Parameters
-
optsreq -
restrest
Source
# File activerecord/lib/active_record/relation/query_methods.rb, line 47
def not(opts, *rest)
opts = sanitize_forbidden_attributes(opts)
where_clause = @scope.send(:where_clause_factory).build(opts, rest)
@scope.references!(PredicateBuilder.references(opts)) if Hash === opts
@scope.where_clause += where_clause.invert
@scope
end
Defined in activerecord/lib/active_record/relation/query_methods.rb line 47
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Defined in ActiveRecord::QueryMethods::WhereChain