mod_import_csv - Handle incoming edges

[fredpook]

Currently only outgoing edges can be imported. This used to be very handy for handling user import and assigning them to usergroups (with hasusergroup). But since the addition of collaboration groups we would like to assign them with hascollabgroup (an incoming edge to the user).
Is it possible to check the predicate definition for the direction?

[mworrell]

Added support for incoming and outgoing edges. Use > author or < author (where author can be any predicate name) as column headers. In the field there should be a resource name or id.

[mworrell]

In testing with @fredpook, if ok then we merge this into master as well.

[fredpook]

Works perfect!

this is an example of importing persons and assigning them to collaboration groups
import_persons_in_collabgroups.txt

[mworrell]

Good example, I will add it to the documentation.

[ddeboer]

Created a separate issue for the docs: #1810.