CXX-2028 fix writeConcern population in find_and_modify

m-ghazanfar · kevinAlbs · commit deb3e38dcccb · 2020-06-02T12:38:13.000-04:00
diff --git a/src/mongocxx/collection.cpp b/src/mongocxx/collection.cpp
@@ -111,7 +111,7 @@ mongocxx::stdx::optional<bsoncxx::document::value> find_and_modify(
         if (!options.write_concern()->is_acknowledged() && options.collation()) {
             throw mongocxx::logic_error{mongocxx::error_code::k_invalid_parameter};
         }
-        extra.append(concatenate(options.write_concern()->to_document()));
+        extra.append(kvp("writeConcern", options.write_concern()->to_document()));
     }
 
     if (session_t) {

Original file line number	Diff line number	Diff line change
`@@ -111,7 +111,7 @@ mongocxx::stdx::optional<bsoncxx::document::value> find_and_modify(`
`111`	`111`	`if (!options.write_concern()->is_acknowledged() && options.collation()) {`
`112`	`112`	`throw mongocxx::logic_error{mongocxx::error_code::k_invalid_parameter};`
`113`	`113`	`}`
`114`		`- extra.append(concatenate(options.write_concern()->to_document()));`
	`114`	`+ extra.append(kvp("writeConcern", options.write_concern()->to_document()));`
`115`	`115`	`}`
`116`	`116`
`117`	`117`	`if (session_t) {`