Re: Inserting with a column that uses auto_increment

ahh....ok. I'll try using different namespaces. That's unfortunate and really suggests a larger design issue with the mysql++ library. It does, although, have many v. nice features.

thanks,
g

On Aug 12, 2007, at 1:43 PM, Jim Wallace wrote:

> Right. The insert uses the macro name as table name, selects
> don't, so
> the insert will have to have the table name.
>
> You may be able to get around it with namespaces.
>
> -----Original Message-----
> From: Graham Reitz [mailto:grahamreitz@mac.com]
> Sent: Sunday, August 12, 2007 12:10 AM
> To: Jim Wallace
> Cc: plusplus@lists.mysql.com
> Subject: Re: Inserting with a column that uses auto_increment
>
> Ok, that seems to work, thanks. Another question:
>
> How do you create two sql_create macros with the same name? (doesn't
> compile)
>
> If I change the name of the sql_create_N(name,...) to something
> else it
> won't let me insert it into the database because it has a different
> table name that doesn't match.
>
> Thanks,
> Graham
>
>
> On Aug 11, 2007, at 8:29 PM, Jim Wallace wrote:
>
>> I use auto_increment often. The trick is to not include that column
>> in the sql_create_* macro. This may mean you have > 1 macro for the
>> same table, one for insert w/o that column, and one for retrieval
>> with
>
>> that column. I often have > 1 macro for the same table depending on
>> how I'm using it.
>>
>> HTH
>>
>> -----Original Message-----
>> From: Graham Reitz [mailto:grahamreitz@mac.com]
>> Sent: Saturday, August 11, 2007 2:27 AM
>> To: plusplus@lists.mysql.com
>> Subject: Inserting with a column that uses auto_increment
>>
>> How do you prevent an insert as shown in the code below from putting
>> "bogus" data in an auto_increment field?
>>
>> It seems like the billing_id field, in the code below, inserts a
>> number based on the un-initialized value of client_id, instead of
>> letting the database auto_increment the value. What's a good method
>> to deal with this, that allows the database to auto_increment a
>> database field?
>>
>> Thanks,
>> Graham
>>
>> /************ CODE ************/
>>
>> #include <mysql++.h>
>> #include <custom.h>
>>
>> using namespace mysqlpp;
>>
>> sql_create_2(clients, 1, 2,
>> unsigned int, client_id, // auto_incremented field
>> unsigned int, billing_id)
>>
>> void populate_client_info(clients& client_info) {
>> client_info.billing_id = 1;
>> }
>>
>> int main (int argc, char* const argv[]) {
>> Connection connection("db_name","ip_address","user",
>> "password",3306, false);
>>
>> Query client_query = connection.query();
>>
>> clients a_client;
>> populate_client_info(a_client);
>>
>> client_query.insert(a_client);
>> client_query.execute();
>>
>> return 0;
>> }
>>
>>
>> --
>> MySQL++ Mailing List
>> For list archives: http://lists.mysql.com/plusplus
>> To unsubscribe: http://lists.mysql.com/plusplus?
>> unsub=grahamreitz@mac.com
>>
>
>
> --
> MySQL++ Mailing List
> For list archives: http://lists.mysql.com/plusplus
> To unsubscribe: http://lists.mysql.com/plusplus?
> unsub=grahamreitz@mac.com
>

-- 
MySQL++ Mailing List
For list archives: 
http://lists.mysql.com/plusplus
To unsubscribe:    
http://lists.mysql.com/plusplus?unsub=lists@pantek.com