Message-ID: <428DF11C.5020505@med.umich.edu>
Date: 2005-05-20T16:17:51Z
From: James W. MacDonald
Subject: [Bioc-devel] Error during wrapup, what does this mean?
In-Reply-To: <20050520154604.dvaclbz71cc8kgkw@webmail.tugraz.at>
Dipl.-Ing. Johannes Rainer wrote:
> hi, it's again me, but i found the problem...
> as i am working with database connections and if an error occurs in a
> function call i want to roll back the whole stuff that has been written
> into a database, i thought to be smart and defined with
>
>> options(error=expression(.rollItBack(Con)))
>
>
> where .rollItBack is a function that sends the command ROLLBACK
> TRANSACTION to the database. well, i did not think, that when the error
> occurs the object Con, which is a local variable in the function does
> not exist, unless the user has called the connection object also 'Con'.
>
> now i want to ask how i can define a global variable from within a
> function.
See ?"<<-" and ?assign
HTH,
Jim
>
> cheers, jo
>
> Quoting "Dipl.-Ing. Johannes Rainer" <johannes.rainer@tugraz.at>:
>
>> hi,
>> i am getting the error message:
>>
>>> Error during wrapup: Object "Con" not found
>>
>>
>> in my functions and have no idea from where this message comes (i have
>> renamed some function arguments from 'Con' to 'con', maybe the message
>> comes from there :) ). nevertheless i do not know where i should
>> search for this error (as the functions work like they should...). can
>> anybody tell me more to this error message?
>>
>> cheers, jo
>>
>> _______________________________________________
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>> https://stat.ethz.ch/mailman/listinfo/bioc-devel
>>
>
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--
James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623