lib/mongodb: fix segfault in `Collection::find` method

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/mongodb/mongodb.nit b/lib/mongodb/mongodb.nit
index 416e36b..624dc8a 100644 (file)
--- a/lib/mongodb/mongodb.nit
+++ b/lib/mongodb/mongodb.nit
@@ -600,8 +600,9 @@ class MongoCollection
        # ~~~
        fun find(query: JsonObject): nullable JsonObject do
                assert is_alive
-               var c = native.find(query.to_bson.native)
-               assert is_alive # FIXME used to avoid segfault (so `self` isn't garbage collected to soon)
+               var q = new NativeBSON.from_json_string(query.to_json.to_cstring)
+               var c = native.find(q)
+               q.destroy
                if c == null then return null
                var cursor = new MongoCursor(c)
                if cursor.is_ok then return cursor.item