Fixed excessive db conns in middleware and pgx race condition on init

src/db/db.go

@@ -45,6 +45,11 @@ type ConnOrTx interface {
 
 var pgTypeMap = pgtype.NewMap()
 
+func init() {
+	// NOTE(asaf): Need to initialize it here to avoid potential race conditions later
+	pgTypeMap.TypeForValue(nil)
+}
+
 // Creates a new connection to the HMN database.
 // This connection is not safe for concurrent use.
 func NewConn() *pgx.Conn {

src/hmndata/project_helper.go

@@ -152,7 +152,7 @@ func FetchProjects(
 	}
 
 	// Do the query
-	projectRows, err := db.Query[projectRow](ctx, dbConn, qb.String(), qb.Args()...)
+	projectRows, err := db.Query[projectRow](ctx, tx, qb.String(), qb.Args()...)
 	if err != nil {
 		return nil, oops.New(err, "failed to fetch projects")
 	}