Hi, The after_doc_read feature is not available to users at this time, it's an internal feature used for _users and _replicator.
B. On 24 Sep 2013, at 09:28, Thorsten Scherler <[email protected]> wrote: > On 09/23/2013 06:50 PM, Mike Marino wrote: >> Hi Thorsten, >> >> I believe you're asking how to implement read/write permissions on a >> database, but I'm a little bit confused by your subject. If this is so, >> the normal way is to use validate_doc_update functions in a design >> document, e.g.: >> >> http://docs.couchdb.org/en/latest/ddocs.html#validate-document-update-functions >> >> http://guide.couchdb.org/editions/1/en/validation.html >> >> You will see the first link describes the code you linked to. > > Thank you Mike, but the above is only for UPDATE meaning write validation. > > However in > https://github.com/apache/couchdb/blob/master/src/couchdb/couch_users_db.erl > we are doing READ checks (if I understand the following code correctly) > > after_doc_read(Doc, #db{user_ctx = UserCtx} = Db) -> > #user_ctx{name=Name} = UserCtx, > DocName = get_doc_name(Doc), > case (catch couch_db:check_is_admin(Db)) of > ok -> > Doc; > _ when Name =:= DocName -> > Doc; > _ -> > Doc1 = strip_non_public_fields(Doc), > case Doc1 of > #doc{body={[]}} -> > throw(not_found); > _ -> > Doc1 > end > end. > > My understanding is when we are the owner or admin of the doc we will > get the doc. In case we have public fields we return only those > otherwise we throw a 404. > > I would like to implement the exact same behaviour for a database I am > developing. > > Regarding the subject my question is how can I implement above code > either in a design document (my guess is that is not possible) or in a > custom db? > > If the later then the question is how do I create my own > couch_myOwn_db.erl and let couchdb know about the existence? > > TIA > > salu2 > > -- > Thorsten Scherler <scherler.at.gmail.com> > codeBusters S.L. - web based systems > <consulting, training and solutions> > > http://www.codebusters.es/ >
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