This is more of a best approach question as I already implement a
solution it is just not really elegant (actually really kludgy).
I have a custom Cocoa photo view (which for imaging purposes looks
like the main browsing window in iPhoto). The view has bindings
enabled and from the binding it gets an array of file paths. In then
takes those file paths and creates its own class (called
PhotoViewObject), which contains thumbnail images, photo information,
etc...
However, the original set of data comes from a MySQL database. The
table associated with the photo data has its own class (called
PhotoTableObject). On startup an array (called
PhotoTableObjectArray) is populated with these PhotoTableObject
objects which are bound to an array controller (called
PhotoTableObjectArrayController) which is the controller from which
the custom view used to get the photo paths. Specifically the custom
view binds to the the arrangedObjects of
PhotoTableObjectArrayController with the keypath photoPath.
My problem is, when I get a drop onto the custom view of an image I
add the photo to the view. But I also want the database to be
updated with the new photo. Right now the custom view has all the
headers of the PhotoTableObject so that when we get a drop we create
a new PhotoTableObject and add that to the array controller. But I
don't think my custom view really should know about the
PhotoTableObject class.
Unfortunately, I couldn't think of a better way of doing this. I
guess what I need to do is sort of have a bidirectional
communication. Right now when an object gets added to
PhotoTableObjectArray, through bindings the information is sent to
the custom view to update itself. But how can I have the opposite
happen, when I add something to say the internal array of
PhotoViewObject have the PhotoTableObjectArray get updated.
If I wasn't clear on my problems, please let me know. Any help is
greatly appreciated!
Thanks.
---------------------------------------------------------------
Michael Petnuch
http://www.petnuch.com
email@hidden
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