[development] Demystifying $view->exposed_data

[Dipen]

Thanks a lot, glad that I asked this before pulling my hairs out coz for
some reason It never occurred to me that it could be a bug in views. :)

 It worked after applying the patch.

 Thanks again!


On Sat, Jun 4, 2011 at 10:17 PM, Earl Miles <merlin at logrus.com> wrote:

> You're in a batch, and Views has a bug with batches. It's fixed in the
> -dev version: See http://drupal.org/node/829550
>
> On 6/4/2011 7:59 AM, Dipen wrote:
> > Hi,
> >
> > I am badly stuck at this one, I am trying to convert a cron function
> > to batched drush execution to overcome memory limits etc. I could
> > have gone for queued cron execution but in my initial assessment I
> > found batched drush execution simpler. Anyways, I am using
> > views_savedsearches to allow my users to keep a tab on their exposed
> > filters, since the data keeps coming in for their criteria I am also
> > using notifications_views_savedsearches (which comes in the same
> > package) to notify them if they have subscribed to their saved
> > searches. So All is good except the amount of content is huge for
> > hook_cron of notifications_views_savedsearches to process without
> > memory errors which prompted me to convert it into batched drush
> > execution.
> >
> > So I got to a good start and quickly deconstructed (almost) the
> > notifications_views_savedsearches_cron implementation into batch
> > process to be run by drush. Everything is fine, except that
> > $view->execute() doesn't return any result for my implementation but
> > does yield results in the original implementation. This is the place
> > I am stuck, few things to note here:
> >
> > 1> $view Object just before calling $view->execute() is exactly same
> > for both implementations ( old cron and new batch worker process ), I
> > ran a diff couple of times. Please note that both functions have
> > practically same code except that I had to write couple of extra
> > function to make batch work. 2> On further investigation found out
> > that query and count query are same too but args are different.
> >
> > Am I wrong to assume that calling execute() on two identical view
> > objects can lead to different results? Atleast thats what I am
> > experiencing? (There is no additional processing on the view object,
> > they are exactly same before execute() is called on them)
> >
> > On further investigation found out that the view object of my batch
> > worker process has $this->exposed_data empty and thats the reason
> > for args to be malformed and for query to returning empty result. I
> > haven't been able to find out much on why is exposed_data set in one
> > view and not in other when they were identical before calling
> > execute() on them, looking at call stack, I found out much of the
> > query building and pre processing is done in $this->build and
> > $this->_build($key) and thats where $this->exposed_data is bailing
> > out on me.
> >
> > Some of the debugged Arrays:
> >
> > $args for the cron function (the one thats working) - Array ( [0] =>
> > drealty_property [1] => 0 [2] => 100000000 [3] => 0 [4] => 0 [5] =>
> > 39 )
> >
> > $this->exposed_data returns a healthy array
> >
> > One thats not working ( my batched execution $args) :
> >
> > Array ( [0] => drealty_property [1] => [2] => [3] => [4] => [5] =>
> > [6] => )
> >
> > $this->exposed_data doesn't return anything.
> >
> >
> > Code of both functions is almost same and the $view object just prior
> > to $view->execute() is exactly identical.
> >
> > Has anyone faced anything similar? Could it be due to the batch API?
> > I am using drush_backend_batch_process() to process my batch.
> > Everything else is working except that my batch process doesn't have
> > anything in $view->result. I haven't been able to find where does
> > $this->exposed_data get set.
> >
> > Crux of code for both function is:
> >
> > $vs = views_savedsearches_load($subscription['sid']);  // Retrieving
> > exposed filter setting for the subscriber using helper function of
> > views_savedsearches
> >
> > $view_name = db_result(db_query("SELECT name FROM {views_view} WHERE
> > vid = %d", $vs->vid));
> >
> > $view = views_get_view($view_name);
> >
> > if (is_object($view) && is_object($vs)) { if ($view instanceof view)
> > {
> >
> > // Apply $vs->filters $view->set_exposed_input($vs->filters);
> >
> > // The original code limits this value to 10 which is not much useful
> > as new data at any point of time is anytime more than 10
> > $view->pager['items_per_page'] = 0;
> >
> > // Run the query   // $view at this point in both functions is
> > exactly same ( did a diff ) $view->execute('default');
> >
> > $view->result  is empty for my batch process but has values for the
> > old cron function. I am pretty sure(?), that I am not making a silly
> > variable in scope mistake.
> >
> >
> > Thanks in Advance
> >
> >
> >
> > ---------------------------------- Dipen Chaudhary QED42 : We build
> > beautiful and scalable web strategies ( www.qed42.com
> > <http://www.qed42.com> ) Blog: dipenchaudhary.com
> > <http://dipenchaudhary.com> Twitter: http://twitter.com/dipench
> >
>
>
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