fix: add support for the hint option (#175)

Author: zookzook

lib/mongo.ex

@@ -1109,7 +1109,8 @@ defmodule Mongo do
         upsert: Keyword.get(opts, :upsert),
         multi: multi,
         collation: Keyword.get(opts, :collation),
-        arrayFilters: Keyword.get(opts, :array_filters)
+        arrayFilters: Keyword.get(opts, :array_filters),
+        hint: Keyword.get(opts, :hint)
       }
       |> filter_nils()
 

test/mongo/update_hint_test.exs

@@ -0,0 +1,26 @@
+defmodule Mongo.UpdateHintTest do
+  use CollectionCase
+
+  test "update_one, using :hint options", %{pid: top} do
+    coll = unique_collection()
+
+    Mongo.insert_one(top, coll, %{_id: 1, member: "abc123", status: "P", points: 0, misc1: nil, misc2: nil})
+    Mongo.insert_one(top, coll, %{_id: 2, member: "xyz123", status: "A", points: 60, misc1: "reminder: ping me at 100pts", misc2: "Some random comment"})
+    Mongo.insert_one(top, coll, %{_id: 3, member: "lmn123", status: "P", points: 0, misc1: nil, misc2: nil})
+    Mongo.insert_one(top, coll, %{_id: 4, member: "pqr123", status: "D", points: 20, misc1: "Deactivated", misc2: nil})
+    Mongo.insert_one(top, coll, %{_id: 5, member: "ijk123", status: "P", points: 0, misc1: nil, misc2: nil})
+    Mongo.insert_one(top, coll, %{_id: 6, member: "cde123", status: "A", points: 86, misc1: "reminder: ping me at 100pts", misc2: "Some random comment"})
+
+    assert :ok = Mongo.create_indexes(top, coll, [%{key: %{status: 1}, name: "status_index"}, %{key: %{points: 1}, name: "points_index"}])
+
+    assert {:ok,
+            %Mongo.UpdateResult{
+              acknowledged: true,
+              matched_count: 3,
+              modified_count: 3,
+              upserted_ids: []
+            }} = Mongo.update_many(top, coll, %{points: %{"$lte": 20}, status: "P"}, %{"$set": %{misc1: "Need to activate"}}, hint: %{status: 1})
+
+    assert {:error, %{write_errors: [%{"code" => 2, "index" => 0}]}} = Mongo.update_many(top, coll, %{points: %{"$lte": 20}, status: "P"}, %{"$set": %{misc1: "Need to activate"}}, hint: %{email: 1})
+  end
+end