Hi Nicodemo, see my replies embedded below. Regards.
On 29/08/24 11:59, Cianciaruso, Nicodemo wrote:
Hello, While considering the capabilities of Syncope, the question arose as to how several multi-value schemas can be combined into one schema. Allow me to briefly present the following scenario: Two resources exist, each of which provides multiple email addresses for one user (via a multi-value attribute). These email addresses should be combined into a single schema. One idea was to realise this via a derived schema, but unlike the VirAttrHandler, which returns a list of strings, the DerAttrHandler only returns a single string per schema. Is there a special reason why the DerSchema does not support retrieving multiple values if the expression provides a list?
I don't think there is any special reason, only - as it often happens in open source - no enough use cases for multi-values derived attributes to push someone to contribute such an improvement - just to remember that PRs are welcome ;-)
Is there a more obvious solution to achieve the goal using derived attributes? I would be grateful for any advice.
I think that the simplest solution would be to: 1. define a Plain Schema to hold all email addresses 2. create two PullActions classes to associate to the two External Resources 3. remove the mapping for email addresses from the two External Resources The logic to code in the two PullActions classes from (2) is to populate the Plain Schema from (1) with the values coming from the two External Resources. -- Francesco Chicchiriccò Tirasa - Open Source Excellence http://www.tirasa.net/ Member at The Apache Software Foundation Syncope, Cocoon, Olingo, CXF, OpenJPA, PonyMail http://home.apache.org/~ilgrosso/
