[development] Debugging updates

[Tao Starbow]

You could try editing the $debug flag in _db_query to defualt to true.  
And then either disable js like Gordon suggests, or change the debug 
print to watchdog.

-tao

Gordon Heydon wrote:
> Hi,
>
> What I usually do is turn off js and then I can just use var_dump() to
> print to the page, or you can just return the messages as errors from
> the hook_update_n() like
>
> $ret[] = array(
>   'success' => false,
>   'query' => t('Default currency needs to be set before the update can
> continue. Use the <a href="!link">Receipt type settings</a> to set the
> default currenecy', array('!link' =>
> url('admin/ecsettings/rtypes/settings')))
> );
>
> I used this in e-Commerce to stop the update (with a little extra code
> to remove the additional updates), but it should not interfer
>
> Gordon.
>
> Karen Stevenson wrote:
>   
>> Does anyone have ideas for ways to debug update functions in the
>> install file figure out what's going on when they don't work as
>> expected or when I get reports of problems?
>>
>> Is there any way to see the query logs that the devel module creates
>> from within updates? If I use update_sql() I can tell what queries
>> ran, but there are times when I need to use db_query() instead and I
>> can get no clue to what is going on when that runs. And I can't find
>> any way to display messages back to myself or see results of
>> print_r() or any of the other things I do elsewhere to debug scripts.
>>
>>
>> I've tried to execute the update() script directly from within a
>> normal page, but that won't work either.
>>
>> Ideas welcome!
>>
>> Karen
>>
>>
>> !DSPAM:1000,4718c26495981804284693!
>>
>>