On 03.02.2008, at 22:58, Iván -DrSlump- Montes wrote:

Following with the repeat discussion I've refactored the repeat
controller to add some Zope features missing from it. I've also added
support for PHP internal objects implementing Traversable (like PDO)
by traversing the object at instantiation time and storing all the
results in a temporary array. I think this is a good trade-off, if
someone has special needs which are not suited by this approach he/she
can wrap the traversable object with a specialized iterator.


It's very good! I've committed it to SVN, with just a little workaround — I've discovered that DOMNodeList is traversable, but not Traversable.

I don't mind extra overhead (it's negligible indeed), but I'm concerned about buffering of PDOStatement results. It would be nice to provide specialised iterator out of the box — one that "streams" one row at a time and lazily fetches rest only if /last is used (or maybe it shouldn't bother at all? One can use fetchAll in a template to iterate a real array).

I was planning to remove unnecessary buffering from PHPTAL to allow generation of arbitrarily large documents without hitting memory limit. For this to be useful, unbuffered PDO support is needed.

--
regards, Kornel



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