Support needs_templates for needextract

[twodrops]

#689 will allow usage of needextract as target links. It will then be good to have possibilties of using needs_templates for needextract together with the already supported layout and style.

This will allow the extracted needs to be templated without affecting the original need.

Is this feasible?

[danwos]

Ohh, tough one. I'm afraid that this is not doable.

needextract itself gets executed after the rst-rendering phase of Sphinx. So this is too late to add any rst-based (pre/post-)content.

I think the current needextract mechanism simply copies the content-node from the original need-node. Therefore it does not need to render anything again.

I will recheck the code, but I do not have much hope.

[twodrops]

Ok I thought so too that it might be a tough one :)

The usecase is:

• needs are imported flat in a single page (from external tools or using needimport)
• needextract is used to (re)document the imported needs in separate pages
• The newly documented needs are set as target link #689
• the newly documented needs have contents added like needflow etc. automatically
• the original needs in the needimport page are not affected as the page might othwerwise be slow to generate/load