Predicate help needed
Predicate help needed
- Subject: Predicate help needed
- From: Brad Bumgarner <email@hidden>
- Date: Fri, 14 Jul 2006 14:17:57 -0600
Overview of project:
I am working on an app. that will allow for output to a printer (for
faxing) or email message a proof confirmation for a client requesting
work from the company I work for. Information input is the contact
person's name, their company name, phone, fax, email, as well as the
info. required for the requested job.
I would like to be able to enter the contact name in NSTokenField and
query the Address Book as the entry is being made (al a Mail.app). I
would like the organization name and phone, fax and email fields to
display the information for the current token.
Current status (I'm still learning Obj-C):
I have an NSTextfield that I currently enter the text for the
contact name. As the text is entered, the text is broken into
component parts, into an NSArray, using a space as the separator. The
Address Book is then queried for entries matching first name and last
name. (I want to be able to enter either name first so each component
is queried for both first and last names). These results are stored
in an NSMutableSet, thus eliminating duplicates. The results are
currently displayed in the run log (since I am still in the early
building/testing phase).
Now I need to filter this set to remove objects that don't contain
both (first name AND last name) OR (last name AND first name). It
seems that I should be using a predicate here but I don't understand
how to create and use them. I have read the documentation but quickly
get lost.
Here are the "players" involved in my project that I believe I need
to do the filtering:
NSArray *searchComponents;
This holds the string components (i.e.: "Brad Bumg" --> (@"Brad",
@"Bumg")) the components could be in first name first order OR last
name first order.
NSMutableSet *searchElements; // ABPerson objects matching at least
one of the searchComponents entries
Would someone help me with the filtering process?
Thanks,
Brad Bumgarner, CTA
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