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-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb21
-rw-r--r--activerecord/lib/active_record/relation/where_clause.rb14
2 files changed, 26 insertions, 9 deletions
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 90b5e9a118..0a481dcbdc 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -41,18 +41,31 @@ module ActiveRecord
#
# 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'
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
+
+ if not_behaves_as_nor?(opts)
+ ActiveSupport::Deprecation.warn(<<~MSG.squish)
+ NOT conditions will no longer behave as NOR in Rails 6.1.
+ To continue using NOR conditions, NOT each conditions manually
+ (`#{ opts.keys.map { |key| ".where.not(#{key.inspect} => ...)" }.join }`).
+ MSG
+ @scope.where_clause += where_clause.invert(:nor)
+ else
+ @scope.where_clause += where_clause.invert
+ end
+
@scope
end
+
+ private
+ def not_behaves_as_nor?(opts)
+ opts.is_a?(Hash) && opts.size > 1
+ end
end
FROZEN_EMPTY_ARRAY = [].freeze
diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb
index 47728aac30..b91b135867 100644
--- a/activerecord/lib/active_record/relation/where_clause.rb
+++ b/activerecord/lib/active_record/relation/where_clause.rb
@@ -70,7 +70,15 @@ module ActiveRecord
predicates == other.predicates
end
- def invert
+ def invert(as = :nand)
+ if predicates.size == 1
+ inverted_predicates = [ invert_predicate(predicates.first) ]
+ elsif as == :nor
+ inverted_predicates = predicates.map { |node| invert_predicate(node) }
+ else
+ inverted_predicates = [ Arel::Nodes::Not.new(ast) ]
+ end
+
WhereClause.new(inverted_predicates)
end
@@ -115,10 +123,6 @@ module ActiveRecord
node.respond_to?(:operator) && node.operator == :==
end
- def inverted_predicates
- predicates.map { |node| invert_predicate(node) }
- end
-
def invert_predicate(node)
case node
when NilClass