fix(httpcache): only map entites that are persisted

[soyuka]

Could you check this @mrossard ?

[mrossard]

I'm not able to test this right now, but doesn't this version skip purging the collection IRI on inserts? There's likely a better way to do this, but it likely involves a bigger refactoring - mapping the new entities to resources likely can only be done after flush(), and we were gathering the changed IRIs on flush before...i'll try looking at it when i'm back home.

[soyuka]

I see, I've revised the patch I think it'll be fine like this.

[mrossard]

This version should be better, but on insertions you won't get the collection IRIs purged for mapped entities. Still better than before 4.2 though.

I'll try to rework this when i get back - one "simple" fix might be to just add a "newEntities" array alongside the "tags" array, and add new entities to it in onflush() then do the mapping / iri gathering for those in postFlush().

[soyuka]

No rush enjoy your time off :) I'll open an issue to track this