Invenio Developer Forum - Free Bazaar - Monday May 18th at 16:45 CEST
Hello: The next Invenio Developer Forum will take place on Monday May 18th 2015 at 16:45 CEST in (i) CERN room 31-S-023 and in (ii) Vidyo videoconferencing room at: https://vidyoportal.cern.ch/flex.html?roomdirect.htmlkey=ygjcGzMEk8re Today, we shall have a free bazaar session, discussing or working on anything of interest at hand, in smaller or wider circles. https://indico.cern.ch/event/395131 Best regards, Esteban
[pu jsonalchemy] Aggregation of several fields into now
Hey guys! I have a question about the aggregation of several fields into one. Taking the example of the authors, lets say I have two fields `_first_author` and `_additional_authors` and I want to aggregate then into `authors`. The common case, and the easiest, is when I have one `_first_author` and cero or more `_additional_authors`, in which case I just put a list with the authors (what else right? :-) The problem, or the question, comes when I don’t have a `_first_author` in which case I’m not sure about the content of the `authors` field, it could be i) only the list of `_additional_authors` or ii) `None` follow by the the list of `_additional_authors`. I think the second solution is the closest one to reality, the `None` express that the record doesn’t have a first author. And I also think that we could apply this solution for other cases where we have this kind of situation (like with the `110__` and `710__`). What do you think? Lars, as you have already pu in production, how do you deal with this problem? Cheers, -- Esteban J. G. Gabancho
Re: [pu jsonalchemy] Aggregation of several fields into now
Hi Jan! On 27 Mar 2014, at 16:02, Jan Åge Lavik jan.age.la...@cern.ch wrote: With the None approach, it fear it can get confusing when iterating over all authors (or whatever other field) as one then get None into the mix. If one really wants to get the first author, maybe calling first_author (where first_author is a direct lookup to _first_author) is enough and then expecting a None or empty list is alright? I dunno, it seems to me that when asking for give me all the authors, None does not belong there with John Ellis. I understand (and share) your opinion, currently in the templates we are just iterating over the full list of authors and maybe we should start using the other keys. Lets see what the others think about this, although this is something that each Invenio instance should do with their data model definition. Cheers, -- Esteban J. G. Gabancho
