sqlite查询未准备插入行但空值

Question

我正在编写一个函数来准备一个sql查询并对sqlite db执行它。我正在使用查询将值插入表中，查询看起来像这样

   "insert into files values (?, ?, ?, ?, ?, 0)";

插入一行但文本字段的所有值都为空，但最后一个字段为0.前5个字段的类型为TEXT

    // If I hard code a value for value.data() then the row is inserted correctly with my hardcoded data, the exact line is below
    status = sqlite3_bind_text(ppStmt, index, /* if I hardcode it works*/ value.data(), -1, SQLITE_STATIC);

完整的功能如下所示。列表由调用者在堆栈上创建，我不知道为什么它不用我的字符串args替换问号，硬编码的工作虽然..但没有返回错误代码

    //db is already open before I call this
void MediaCache::prepareAndExecuteQuery(string query, list<string> args)
{

    sqlite3_stmt *ppStmt = 0;
    const char **pzTail = 0;
    int status = 0;

    if( sqlite3_prepare_v2(db, query.data(), query.length(), &ppStmt, pzTail) != SQLITE_OK )
    {
        string error = sqlite3_errmsg(db);
        //throw an exception
    } 

    if(ppStmt)
    {

        list<string>::iterator current = args.begin();
        int index = 1;

        for(current = args.begin() ; current != args.end(); current++)
        {
            string value = *current;            
            status = sqlite3_bind_text(ppStmt, index, value.data(), -1, SQLITE_STATIC);

            if(status != SQLITE_OK)
            {
                //log error;
            }

            index++;
        }   

        status = sqlite3_step(ppStmt);
        status = sqlite3_finalize(ppStmt);
        //sqlite3_exec(db, "COMMIT", NULL, NULL, NULL);
    }
    else
    {
        //ppStmt is null
        //throw an exception
    }

}