[Freeswitch-users] Problem with LUA dbh:query in Freeswitch

Ítalo Rossi italorossib at gmail.com
Mon Mar 23 15:45:04 MSK 2015


Yep, it's available and defaults to 6 decimal places, but looks like it's
not a Lua issue...

On Mon, Mar 23, 2015 at 9:05 AM, Bote Man <bote_radio at botecomm.com> wrote:

> I’m not much of a programmer, but can’t you specify a format to %f to
> force it to return 4 decimal places?
>
>
>
> Or is that not available in Lua?
>
>
>
> Bote
>
>
>
>
>
> *From:* John Carpenter
> *Sent:* Monday, 23 March, 2015 06:59
> *Subject:* Re: [Freeswitch-users] Problem with LUA dbh:query in Freeswitch
>
>
>
> Thats it, changed connection to a pgsql:// dsn and I get four decimal
> places, changed it back to ODBC and back to 3 decimal places.
>
> Thanks very much, been driving me mad
>
>
>
> On 23 March 2015 at 10:23, Steven Ayre <steveayre at gmail.com> wrote:
>
> Have you tried a pgsql:// dsn? In case the ODBC driver is having some
> truncating effect.
>
>
>
> On 22 March 2015 at 02:06, John Carpenter <carpenter.john at gmail.com>
> wrote:
>
> I am trying to use Lua to retrieve some currency conversion rates from a
> postgres database. It works but the numeric field value is only returning
> the first three decimal places although if I list the data in postgres it
> has four decimal places. I may be doing something daft as I am quite new to
> Lua, sample code is below. Any ideas appreciated
>
> regards, John
>
>
>
>
>
> *local* dbh = freeswitch.Dbh(*"odbc://fs_odbc:fs_user:password"*)
> *if* dbh:connected() == *false* *then*
>  freeswitch.consoleLog(*"notice"*, *"dp.lua cannot connect to database"*
> .. dsn .. *"\n"*)
>  *return*
> *end*
> *assert*(dbh:connected())
>
> e_rate = *1.123456789*
> *-- just a test* to see decimal places
> freeswitch.consoleLog(*"info"*,*string.format*(*" e_rate = %f"*, e_rate))
>
> *local* *function* eur2usd()
>    *local* sql = *"select eur2usd from currency order by id desc limit 1"*
>    dbh:query(sql, *function*(row)
>        e_rate = row.eur2usd
>        *end*)
> *end*
>
> *local* *function* eur2gbp()
>    *local* sql = *"select eur2gbp from currency order by id desc limit 1"*
>    dbh:query(sql, *function*(row)
>        e_rate = row.eur2gbp
>        *end*)
> *end*
>
> eur2usd()
> freeswitch.consoleLog(*"info"*,*string.format*(*" euro2usd = %f"*,
> e_rate))
> eur2gbp()
> freeswitch.consoleLog(*"info"*,*string.format*(*" euro2gbp = %f"*,
> e_rate))
>
>
>
>
>
>
>
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-- 
Ítalo Rossi
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