opportunity: Fixed useless null check

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>

diff --git a/contrib/opportunity/src/opportunity_model.nit b/contrib/opportunity/src/opportunity_model.nit
index fa9e674..79011e0 100644 (file)
--- a/contrib/opportunity/src/opportunity_model.nit
+++ b/contrib/opportunity/src/opportunity_model.nit
@@ -262,7 +262,7 @@ class Answer
        #
        # REQUIRE: is loaded in database
        fun load_meetup(db: OpportunityDB): Meetup do
-               assert id != null
+               assert id != -1
                var res = db.select("meetups.* FROM meetups, answers WHERE answers.id={id} AND answers.meetup_id=meetups.id;")
                for i in res do
                        return new Meetup.from_db(i[0].to_s, i[1].to_s, i[2].to_s, i[3].to_s)