> On Apr 21, 2017, at 5:18 PM, Andre LaBranche <d...@apple.com> wrote: > >> >> On Apr 21, 2017, at 1:34 PM, Ian Baker <iba...@eem.ca >> <mailto:iba...@eem.ca>> wrote: >> >> ... >>>> 3) We recently hired some PC user types who are pushing us to move to >>>> Outlook and Exchange for the simple reason that they want to be able to >>>> add attachments to meeting invitations, e.g. meeting agenda. Apparently >>>> Outlook/Exchange can do this. Is this possible using Mac’s Calendar.app >>>> and/or the WebCal client? >>> >>> Attachments are supported in Calendar.app. Select an event, click >>> "Attachments", then "Add attachment". Attachments are not supported in the >>> web client. >> >> Sorry André - color me thick, but I don’t see where to click “Attachments”. >> Here is what I see when I open an event: >> <PastedGraphic-3.png> >> Am I looking in the wrong spot? > > Here's what I see: > > <PastedGraphic-1.png> > > For some relatively recent release, client and server both switched to a new > mechanism for doing attachments (called "managed attachments"). I'd guess the > reason you aren't offered the option for adding attachments is a version > mismatch between client and server; either the server is too old for the > client or vice versa. I'm pretty sure (but not positive) that newer clients > do not retain the ability to do the older attachments scheme. If the server > is new enough to support managed attachments, this feature should be enabled > by default. You can check by loading a calendar home in a browser, e.g. > https://your-server.example.com/calendars/users/you > <https://your-server.example.com/calendars/users/you> (log in with the same > credentials used for CalDAV). On the resulting page you'll see a bunch of > text; do a find for managed-attachments-server-URL. If it's present, managed > attachments is (are?) enabled. > > Support for managed attachments can be disabled on the server, however if you > do this, I'm pretty sure you will break access to any existing attachments > created in the 'managed attachments' style. It may be the case that it's not > possible to move from "managed attachments" back to the older style > ("dropbox" - no, not "Dropbox"). As I recall, the config switch is mostly > there to allow sites to delay the upgrade to managed attachments, but not for > going back to dropbox once the upgrade has happened. You can check for > existing attachments by querying the database; something like: > > sudo psql -h /var/run/caldavd/PostgresSocket -U caldav -c "select * from > attachment;" > > ... and you can see if the server has already performed the one-time upgrade > to managed attachments by querying the 'calendarserver' table - if > MANAGED-ATTACHMENTS is '1', then the attachments upgrade has already occurred. > > % sudo psql -h /var/run/caldavd/PostgresSocket -U caldav -c "select * from > calendarserver;" > name | value > --------------------------+------- > CALENDAR-DATAVERSION | 6 > ADDRESSBOOK-DATAVERSION | 2 > NOTIFICATION-DATAVERSION | 1 > MANAGED-ATTACHMENTS | 1 > MIN-VALID-REVISION | 29 > VERSION | 63 > > (the above output is from a slightly older-than-current CalendarServer > version) > > There is support for converting dropbox attachments into managed attachments > as a one-time operation (typically at upgrade time), but not converting in > the other direction. It may be possible to change that 1 to a 0 to allow the > server to re-upgrade attachments, but that is wholly untested. > > You can disable managed attachments on the server (and implicitly enable > dropbox attachments) by setting > > <!-- Calendar Managed Attachments --> > <key>EnableManagedAttachments</key> > <false/> > > in the CalendarServer config. To isolate that change from the rest of the > config (some of which is automatically maintained by the UI), you can create > /Library/Server/Calendar & Contacts/Config/caldavd-user.plist containing: > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" > "http://www.apple.com/DTDs/PropertyList-1.0.dtd > <http://www.apple.com/DTDs/PropertyList-1.0.dtd>"> > <plist version="1.0"> > <dict> > > <!-- Calendar Managed Attachments --> > <key>EnableManagedAttachments</key> > <false/> > > </dict> > </plist> > > ... then bounce the service using the GUI switch, or: sudo > calendarserver_config --restart > > To reiterate, you would probably have better luck getting everything updated > than trying to do any style of attachments across a sufficiently large > version skew of clients.
Tried from a different box, and found the Attachments button. Thank-you for the detailed explanation André. I think we’ll go for your “update everything” recommendation. Ian
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