[jifty-devel] Frustration with limit's limitations
jesse at bestpractical.com
Thu Jun 26 19:55:06 EDT 2008
limit is the oldest part of dbix::searchbuilder. I wrote the code in
1999 just after leaving microsoft. I share your desire for something
more concise and expressive. Ruslan has been working on a generalized
version of rt's ticketsql for jdbi though I dunno if it's ready yet.
You CAN do what you want with a combination of entry aggregators and
named subclauses, but it is still clunkier than it should be.
Solutions would be greatly appreciated, but please pick a better name
for your new search method that makes more sense than limit. I regret
that poor naming every day.
Sent from my phone. Please forgive my brevity.
On Jun 27, 2008, at 2:23 AM, "Sterling Hanenkamp" <sterling at hanenkamp.com
> Every so often I want to defenestrate Jifty::DBI for the simple fact
> that I cannot describe a basic WHERE clause with it. For example,
> the query:
> SELECT *
> FROM tasks
> WHERE parent = 12 AND task_type = 'action' AND (status = 'open' OR
> (status = 'done' AND completed_on >= '2008-06-26 11:39:22'))
> Is there a way to do this? I haven't found a combination of limits
> and subclauses that will let me do this that works. The code within
> limit() is pretty complicated, so I haven't been able to unravel
> what it is doing, let alone how this is supposed to work. I'll write
> up a complex query example in the documentation if someone will give
> me a demonstration on how this is supposed to be done. I have not
> found a good example of a complex query either.
> My other issue with limit is that the format used in limit() is
> pretty verbose. Has there been any consideration for allowing
> arbitrary SQL to be used. I.e., this is arguably more straitforward:
> $tasks->limit(sql => "completed_on >= '2008-06-26 11:39:22'");
> $tasks->limit(column => 'completed_on', operator => '>=', value =>
> '2008-06-26 11:39:22');
> Or the use of a more flexible and compact format for limits, such as
> is used by SQL::Abstract:
> $tasks->limit(abstract => [ completed_on => [ '>=', '2008-06-26
> 11:39:22' ] ]);
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