Re: Fetch Spec Misunderstanding
Re: Fetch Spec Misunderstanding
- Subject: Re: Fetch Spec Misunderstanding
- From: "Jerry W. Walker" <email@hidden>
- Date: Wed, 27 Jul 2005 00:45:27 -0400
Hi, Darich,
Raw fetches return NSArrays of NSDictionaries, of which, an
EOMutableKnownKeyDictionary is probably a subclass (I'm not really
familiar with it, per se).
So long as it's an NSDictionary, you should simply be able to bind
your pop-up button to the key name of the key-value pair you
retrieved and it should display only the value based on that key. The
fact that each of your dictionaries in the array contains only one
key-value pair, notwithstanding.
So, presume that myFetchSpec exists and that you've fetched an array
named myObjects as follows:
NSDictionary aRow; // Iteration variable
NSDictionary selectedRow; // used to hold selected element from
WOPopUpButton
myFetchSpec.setRawRowKeyPaths(new NSArray
( "myAttribute" ); // sets the keypath for fetching raw rows with
only one key-value pair
NSArray myObjects =
myEditingContext.objectsWithFetchSpecification(myFetchSpec); //
Fetches raw rows as specified above
Now, set up your WOPopUpButton with the following bindings:
list = myObjects;
item = aRow;
displayString = aRow.myAttribute
selection = selectedRow
Replace "myAttribute", of course, with the name of the attribute that
you want displayed. The WOPopUpButton should display what you want.
The above was done from memory, so may contain errors.
Regards,
Jerry
On Jul 27, 2005, at 12:14 AM, Darich Runyan/OMNI INFOSEC LTD HQ wrote:
I found out a bit more. Looks like the Raw Fetch is returning a
EOMutableKnownKeyDictionary which is not quite what I want. Seems
that I
need to be using a formatter. Is there any good docs on how to set
one of
these up?
Thanks,
Darich
From: Darich Runyan/OMNI INFOSEC LTD HQ <email@hidden>
Date: Tue, 26 Jul 2005 23:41:05 -0400
To: WebObjects Development <email@hidden>
Subject: Fetch Spec Misunderstanding
All,
This solution to the problem I am having should be easy yet I am
unable to
find an answer. Up until this evening my application has only
allowed users
to input data and return complete sets via WORepetitions. This works
nicely. I now have a request to provide just portions of a
certain tables,
specifically a single column from each that will then be used to
populate a
WOPopUpButton. To do this I have created a Raw Fetch
Specification in the
EOModel that returns just the column that I want from the entity.
This
almost works fine except it returns the values in the following
format:
{columnName = "value";}
So my PopUpButton gets populated with a bit of extraneous
information. Do I
have to parse this prior to creating the WOPopUpButton in order to
only have
the values added to it or is there some way to have the fetch spec
just
return the value sans the column name?
Thanks,
Darich
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
infosec.co>
m
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40codefab.com
This email sent to email@hidden
--
__ Jerry W. Walker, Partner
C o d e F a b, LLC - "High Performance Industrial Strength
Internet Enabled Systems"
email@hidden
212 465 8484 X-102 office
212 465 9178 fax
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden