Optimize the team list, again.

1 files changed, 11 insertions, 8 deletions

diff --git a/pysite/views/main/jams/jam_team_list.py b/pysite/views/main/jams/jam_team_list.py
index 49587e36..452a073f 100644
--- a/pysite/views/main/jams/jam_team_list.py
+++ b/pysite/views/main/jams/jam_team_list.py
@@ -20,17 +20,20 @@ class JamsTeamListView(RouteView, DBMixin, OAuthMixin):
         if not jam_obj:
             raise NotFound()
 
-        query = self.db.query(self.table_name).get_all(self.table_name, *jam_obj["teams"]).pluck(
-            ["id", "name", "members", "repo"]).merge(
-            lambda team: {
-                "members":
-                    self.db.query("users")
-                        .filter(lambda user: team["members"].contains(user["user_id"]))
-                        .coerce_to("array")
-            }).coerce_to("array")
+        # Get all the participants of this jam
+        # Note: the group function will return a dict with user_ids as keys, however each element will be an array
+        participants_query = self.db.query("users").get_all(*jam_obj["participants"], index="user_id").group("user_id")
+        participants = self.db.run(participants_query)
 
+        # Get all the teams, leaving the team members as only an array of IDs
+        query = self.db.query(self.table_name).get_all(self.table_name, *jam_obj["teams"]).pluck(
+            ["id", "name", "members", "repo"]).coerce_to("array")
         jam_obj["teams"] = self.db.run(query)
 
+        # Populate each team's members using the previously queried participant list
+        for team in jam_obj["teams"]:
+            team["members"] = [participants[user_id][0] for user_id in team["members"]]
+
         return self.render(
             "main/jams/team_list.html",
             jam=jam_obj,