Re: Binding EOF Fecth Qualifier in IB
Re: Binding EOF Fecth Qualifier in IB
- Subject: Re: Binding EOF Fecth Qualifier in IB
- From: Ryu <email@hidden>
- Date: Thu, 17 Feb 2005 15:18:06 +0100
Title: Re: Binding EOF Fecth Qualifier in IB
Thx for your reply.
Coding it was already quite clear for me. As I’d like to avoid coding for such a simple thing,
I’d like to do it with “click only” under Interface Builder. Docs says it is possible, but I can’t find how.
I was already able to make a “load all rows and display”, “filter rows in memory” and
“add/delete rows” using click only with Interface Builder
My pb is to execute a sql request, with bound variables to graphical elements, using Interface Builder, avoiding coding.
Up to now, I got that I have to create a Fetch Spec with Qualifier, but I don’t get how to “bind” the qualifier variables to
graphical elements (NSText/NSForm) under Interface Builder (like I do in the Inspector in the connection section, EOTextAssociation,
Ctrl-Drag to the EODisplayGroup, and connect to the wanted field). I don’t have the @bingings->field or @queryBindings->fields they talk about in the docs.
Here: http://developer.apple.com/documentation/WebObjects/UsingEOModeler/8WorkingW
ithFetchSpecifications/chapter_8_section_2.html
In figure 7-4, you can see that you can do graphically what I want with WebObjects Builder. They say you can do it with Interface builder,
But how ?
Thx in advance!
Ryu
On 17/02/05 13:30, "email@hidden" <email@hidden> wrote:
use this
-------------------------------------------------------
NSMutableDictionary bindings = new NSMutableDictionary();
bindings.setObjectForKey(variable value,fetch variable);
EOEditingContext ec = new EOEditingContext();
-------------------------------------------------------
public NSArray fetchArray(String fetch, String entity, NSMutableDictionary bindings, EOEditingContext ec)
{
EOFetchSpecification fs = EOFetchSpecification.fetchSpecificationNamed(fetch, entity);
if (bindings != null)
{
fs = fs.fetchSpecificationWithQualifierBindings(bindings);
}
NSArray objects = ec.objectsWithFetchSpecification(fs);
if (objects.count() > 0)
{
return objects;
}
else
{
return null;
}
}
-------------------------------------------------------
or this
public EOGenericRecord fetchRow(String fetch, String entity, NSMutableDictionary bindings, EOEditingContext ec)
{
EOFetchSpecification fs = EOFetchSpecification.fetchSpecificationNamed(fetch, entity);
fs = fs.fetchSpecificationWithQualifierBindings(bindings);
NSArray objects = ec.objectsWithFetchSpecification(fs);
// return (EOGenericRecord) objects.objectAtIndex(0);
if (objects.count() > 0)
{
return (EOGenericRecord) objects.objectAtIndex(0);
}
else
{
return null;
}
}
-------------------------------------------------------
----- Original Message -----
From: "Ryu" <email@hidden>
To: <email@hidden>
Sent: Thursday, February 17, 2005 1:15 PM
Subject: Binding EOF Fecth Qualifier in IB
Hi there,
I'm an old NeXT developer, getting back into OSX. My question
may sound easy, but I couldn't find "how to" on the web, so here I post.
I'm writing a Obj-C/Cocoa application that uses EOF (No lines of code up to
now so Obj-C doesn't matter)
Here is what I want to do: a search form in a database (containing millions
of entries, so I can't select all, then search in memeory) using
Appkit/Interface Builder. The database was designed using EOF/EOModeler.
I have added a Fetch Specification to may table, with a Qualifier:
name = $name
Once under IB, I just can't find how to link some NSTextField or NSForm to
the Qualifier Variable.
Though, Apple doc says
http://developer.apple.com/documentation/WebObjects/UsingEOModeler/8WorkingW
ithFetchSpecifications/chapter_8_section_2.html
" You do this by dragging a fetch specification into either WebObjects
Builder or Interface Builder and then binding user interface elements to
keys in the display group that correspond to the fetch specification’s
variables "
"In Interface Builder, the steps are similar except that you bind the user
interface elements to @bindings.title, @bindings.date, and
@bindings.studioName keys of your display group. The @bindings syntax
represents the value associated with the named qualifier variable"
I got a new EODisplayGroup object configured with my Fecth Spec, but
I can't find anything related to @bindings or (@querybindings) in the
inspector of my NSFormCell inspector
(connections/EOTextAssociation/EOPickTextAssociation), nor in the inspector
of my EODisplayGroup.
Last thing: I understand how to make it programmatically, but I want to
do it under IB
I think it should be as easy as a 2 click operation (like browsing all
entries and adding new entries in DB), but couldn't find how to! Plz help!
Regards,
Ryu
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