sqlite3 bind multiple statement values - c++

Question

Considering:
int user_id = 0x01; //dummy
int size_id = 0x01; //dummy
sqlite3_stmt *stmt;
sqlite3 *db;
int rc = sqlite3_open("path_to_database.db", &db);
if( rc != SQLITE_OK )
{
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
return -1;
}
rc = sqlite3_prepare_v2(db, "SELECT id, type, time_registered"
" from myTestTable"
" where user = ? and size = ?", -1, &stmt, NULL);
if (rc != SQLITE_OK)
{
throw std::string(sqlite3_errmsg(db));
sqlite3_finalize(stmt);
return -1;
}
rc = sqlite3_bind_int(stmt, 1, user_id);
if (rc != SQLITE_OK)
{
std::string errmsg(sqlite3_errmsg(db));
sqlite3_finalize(stmt);
throw errmsg;
return -1;
}
rc = sqlite3_bind_int(stmt, 2, size_id);
if (rc != SQLITE_OK)
{
std::string errmsg(sqlite3_errmsg(db));
sqlite3_finalize(stmt);
throw errmsg;
return -1;
}
[...]
This does work, but it seems not user friendly. I could use snprintf to prepare the statement instead of bind, but I'ld loose safety (even if I shouldn't be facing injection attacks on my local db).
Is there a better way to use sqlite3_bind_TYPES to bind more than one value in statement, with same types (or not if possible) ?

Answer 1

You could use a c++ wrapper like SQLiteCpp. If you don't like that one, there's a list at the bottom of the github page.
If you prefer to use the c interface you could invert the logic of the bind statements. This would at least unclutter the code a bit.
int rc = sqlite3_open("path_to_database.db", &db);
if( rc != SQLITE_OK )
{
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
return -1;
}
rc = sqlite3_prepare_v2(db, "SELECT id, type, time_registered"
" from myTestTable"
" where user = ? and size = ?", -1, &stmt, NULL);
if (rc == SQLITE_OK)
rc = sqlite3_bind_int(stmt, 1, user_id);
if (rc == SQLITE_OK)
rc = sqlite3_bind_int(stmt, 2, size_id);
if (rc != SQLITE_OK)
{
throw std::string(sqlite3_errmsg(db));
sqlite3_finalize(stmt);
return -1;
}
[...]
Mike