Re: Empty records in database

On Sat, Oct 30, 2010 at 4:42 PM, ervin <ervin.hoxha@gmail.com> wrote:
> Ok, i think i found the origin of the problem, but not the reason or
> the solution.
>
> As i said this is an online car selling site, so every time the
> someone is viewing a car i was updating an database field calld 'view'
> to increment the number of views for this car. To do this i was using,
> in the view method of the controller :
>
> $this->Post->saveField('view', $view+1);
>
> I tried to remove this line and im not getting anymore those empty
> posts, but as i said i still have to understand why this was
> happening.

You hadn't set the model's id, so a new record is being inserted.

$this->Post->id = $id;
$this->saveField(...);

Another (I think better) way:
$this->Post->updateAll(
array('Post.view' => 'Post.view + 1'),
array('Post.id' => $id)
);

Better still:

$this->Post->increment();

function increment($id = null)
{
if (!$id) $id = $this->id;

$this->updateAll(
array('Post.view' => 'Post.view + 1'),
array('Post.id' => $id)
);
}

Even better again would be to put the updateAll() in afterFind(), so
it's done automatically. But I've yet to figure out a decent way to
differentiate between a find('first') from find('all'), as $results
are unfortunately formatted the same in either case.

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