Crash

william humphrey bill at bluewatermaritime.com
Mon Aug 3 12:32:46 CDT 2015


Valentina has Mantis an excellent bug reporting feature.

http://valentina-db.com/bt/my_view_page.php  is the link to Mantis if you
want to report the bug there. They are very good about fixing bugs and
Mantis lets you know when it is assigned and what the results are.

On Mon, Aug 3, 2015 at 10:52 AM, Mark Schonewille <
m.schonewille at economy-x-talk.com> wrote:

> Hi Ivan,
>
> Thanks for your reply. If I replace vDatabase_SqlQuery() with
> vDatabase_SqlSelect() I get a record, so myCursor must be a cursor
> reference. If it weren't, it would be a bug in Valentina.
>
> The point, however, is that if the cursor reference for some reason is not
> correct, LiveCode (i.e. the Valentina external) shouldn't crash but receive
> an error from Valentina and return this error instead of the cursor
> reference. This doesn't happen: myCursor contains the number 2 and no error.
>
> I think this is a bug and I guess we have to avoid using
> vDatabase_SqlQuery() until it gets fixed.
>
> --
> Best regards,
>
> Mark Schonewille
>
> Economy-x-Talk Consulting and Software Engineering
> Homepage: http://economy-x-talk.com
> Twitter: http://twitter.com/xtalkprogrammer
> KvK: 50277553
>
> Installer Maker for LiveCode:
> http://qery.us/468
>
> Buy my new book "Programming LiveCode for the Real Beginner"
> http://qery.us/3fi
>
> LiveCode on Facebook:
> https://www.facebook.com/groups/runrev/
>
> On 8/3/2015 08:41, Ivan Smahin wrote:
>
>> Hi Mark,
>>
>> On Aug 3, 2015, at 2:38 AM, Mark Schonewille <
>>> m.schonewille at economy-x-talk.com> wrote:
>>>
>>> Hi,
>>>
>>> I have the following (slightly abbreviated) LiveCode script:
>>>
>>> put "SELECT * FROM table1" into mySQL
>>> put vDatabase_SqlQuery(gID,mySQL) into myCursor
>>> put vCursor_recordCount(myCursor) into myRecordCount
>>> put vCursor_getRecord(myCursor,tab,cr) into myData
>>>
>>> The above script crashes LiveCode and myRecordCount contains the number
>>> 2 instead of the expected number of 35 records. It works fine if I replace
>>> vDatabase_sqlQuery() with vDatabase_sqlSelect().
>>> Is this a bug? Do I do something wrong here? Is vDatabase_SqlQuery()
>>> deprecated?
>>>
>>>
>> But vDatabase_SqlQuery returns VQueryResult - not VCursor.
>> Then, based on VQueryResult_Type you should get either cursor or
>> "affected row count" value.
>> So it must be something like this one:
>>
>> ...
>> dim queryResult as VQueryResult
>> put vDatabase_SqlQuery( gID, mySQL ) into queryResult
>> -- if queryResult is cursor type
>> put VQueryResult_Cursor( queryResult ) into myCursor
>> ...
>>
>> _______________________________________________
> Valentina mailing list
> Valentina at lists.macserve.net
> http://lists.macserve.net/mailman/listinfo/valentina
>



-- 
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