Fix bug where pq does not support LastInsertID

repository/paste.go

@@ -34,13 +34,14 @@ func (db *DatabaseConnector) PutPaste(title string) (Paste, error) {
 		return Paste{}, err
 	}
 
-	insertResult, err := db.DB.Exec("INSERT INTO paste VALUES(DEFAULT, $1, $2)", title, handle.String())
+	insertResult := db.DB.QueryRow("INSERT INTO paste VALUES(DEFAULT, $1, $2) RETURNING pasteID", title, handle.String())
+
+	var pasteID int
+	err = insertResult.Scan(&pasteID)
 	if err != nil {
 		return Paste{}, err
 	}
 
-	pasteID, err := insertResult.LastInsertId()
-
 	return Paste{
 		// Even though pasteID is an int64, Postgres' SERIAL is 32 bits, and int is defined to be >= 32 bits
 		ID:     int(pasteID),