Ignoring feed items with empty pubDate

Hello,

I am trying to build a new source for Télérama french magazine for subscribers.

I find that there is useless items they put it all their feeds. The common point is that all those items have an empty pubDate tag.

Is there a way to filter out those items based on that criteria ?

From the parse_feeds() method, it seems that the date is already inherited at that point by the global feed level pubDate.

Any idea ?

Thanks !