Extension should trigger core delegates

[michael-e]

As discussed in #47, the extension should trigger the core pre/post save delegates.

[michael-e]

When importing entries, the extension provides five delegates:

• XMLImporterEntryPreEdit
• XMLImporterEntryPostEdit
• XMLImporterEntryPostSkip
• XMLImporterEntryPreCreate
• XMLImporterEntryPostCreate

The core has four delegates:

• EntryPreEdit
• EntryPostEdit
• EntryPreCreate
• EntryPostCreate

One might think about either adding or replacing existing delegates with the core delegates.

There may be extensions which already subscribe to both types of delegates, so if we simply add the core types, methods in these extensions would be triggered twice. Maybe we should leave it as it is…

Is there a convention for extensions? Should they have own delegates or use core delegates if available?

[nitriques]

Should they have own delegates or use core delegates if available?

This is a tough one. As mention before, one could want to only run code when the xmlimporter runs and not when the core one fires.

But since we are dealing with "core" operation (creating empty) both should be supported IMHO.

There may be extensions which already subscribe to both types of delegates

I am not aware of any. And they should only listen for the core one so it's an easy fix...

[michael-e]

I am not aware of any.

Oh, the Reflection Field… :-) It listens on both types of delegates!

[nitriques]

Hahah ;) Then it should not :P

[michael-e]

So which one? Which brings us back to question number 1, the tough one…

[michael-e]

So you mean that the XML Importer should trigger both types of delegates (core/own), and the Reflection Field should only subscribe to one of them?

[nitriques]

That's what I think yes. I see the registering of both as a failure to be able to do it "always". An extension that acts like the core should do as the core.

Publish/Subscribe architecture takes discipline ;)

[michael-e]

I start to see the big picture. :-)

Nevertheless, offline for today—it's late here in Germany.

[nitriques]

Nite nite Micheal