1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
index 6329733abc..e9daa5d7ff 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
@@ -30,9 +30,10 @@ module ActiveRecord
           when Array
             case sql_type
             when 'point' then super(PostgreSQLColumn.point_to_string(value))
+            when 'json' then super(PostgreSQLColumn.json_to_string(value))
             else
               if column.array
-                "'#{PostgreSQLColumn.array_to_string(value, column, self)}'"
+                "'#{PostgreSQLColumn.array_to_string(value, column, self).gsub(/'/, "''")}'"
               else
                 super
               end
@@ -98,6 +99,7 @@ module ActiveRecord
           when Array
             case column.sql_type
             when 'point' then PostgreSQLColumn.point_to_string(value)
+            when 'json' then PostgreSQLColumn.json_to_string(value)
             else
               return super(value, column) unless column.array
               PostgreSQLColumn.array_to_string(value, column, self)