diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/where_clause.rb')
-rw-r--r-- | activerecord/lib/active_record/relation/where_clause.rb | 14 |
1 files changed, 9 insertions, 5 deletions
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 |