Dear list,
I have a fairly basic core-data model with a set of Category entities, each
category contains then a set of Item entities. What I want to do is implement a
search field which searches all items from all categories - something like the
searching is done in Mail.app.
I'm not really sure how to go about this. I've tried binding the predicate
bindings of an NSSearchField to the Item array controller, but this only
searches in the items of the currently selected category (since the array
controller is bound to categorycontroller.selection.items).
I also tried making another array controller which contains all items and then
set a filter predicate on this depending on the user having chosen a state:
'all categories' or 'currently selected category'. Then I bound my table view
to this 'all items array controller'. But this is not so nice since the
relationship between categories and items is not automatically handled.
Is there a 'correct' way to attack such a problem, or has someone else managed
to implement a search interface something like Mail.app?
Best wishes,
Martin
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: [email protected]
WWW: http://www.aei.mpg.de/~hewitson
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