Hello JW, AK and everybody
Scenario:
CFAzienda entity
CFAzienda have some attributes and some relationships
actually we need to discuss abuout relationships
i have two entities
CFSettore
CFServizio
the relationships map is
CFAzienda <<----> CFSettore ( relationship name is "settore" )
CFAzienda <<---->> CFServizio ( relationship name is "serviziOfferti" )
Now I have to display the CFAzienda in a DisplayGroup and i have two popup
menus for filtering the group
one popup menu have a list of CFSettore and the other a list of CFServizio
as usual I was using this method:
.
.
EODatabaseDataSource ds =
((Session)session()).getAziendeController().dataSource();
displayGroup.setDataSource(ds);
.
.
public void setQualifiers() {
NSMutableDictionary<String, EOGenericRecord> dict = new
NSMutableDictionary<String, EOGenericRecord>();
dict.takeValueForKey(true,"isEnabled");
if( selectedSettore!=null ) {
dict.takeValueForKey(selectedSettore, "settore");
}
if( selectedServizio!=null ) {
dict.takeValueForKey(selectedServizio,
"serviziOfferti");
}
EOQualifier q =
EOQualifier.qualifierToMatchAllValues(dict.immutableClone());
displayGroup.setQualifier(q);
displayGroup.updateDisplayedObjects();
}
And this works file if the display group is an ERXBatchingDisplayGroup
but today for some reasons i discovered that the but ERXBatchingDisplayGroup (
due to the nature of batching ) have the filteredObject() returning a
ERXBatchingDisplayGroup.fakeArray instead on an NSArray of objects, so I
decided to use the ERXDisplayGroup instead
now the problem:
the CFservizio qualifier doesn't work anymore, or better, no data is displayed
at all, practically this
if( selectedServizio!=null ) {
dict.takeValueForKey(selectedServizio, "serviziOfferti");
}
is not working, remember that the relationship "serviziOfferti" is a to many.
After some testing and looking at both ERXDisplayGroup and the
ERXBatchingDisplayGroup source code, I realized that the problem is how
ERXDisplayGroup fetch data, then I decided to do filtering directly in the
DataSource...
public void setQualifiers() {
NSMutableDictionary<String, EOGenericRecord> dict = new
NSMutableDictionary<String, EOGenericRecord>();
dict.takeValueForKey(true,"isEnabled");
if( selectedSettore!=null ) {
dict.takeValueForKey(selectedSettore, "settore");
}
if( selectedServizio!=null ) {
dict.takeValueForKey(selectedServizio,
"serviziOfferti");
}
EOQualifier q =
EOQualifier.qualifierToMatchAllValues(dict.immutableClone());
ds.setAuxiliaryQualifier(q); //ds IS THE DATA SOURCE
displayGroup = new ERXDisplayGroup<CFAzienda>();
displayGroup.setSortOrderings(nameOrdering.immutableClone());
displayGroup.setDataSource(ds);
displayGroup.fetch();
}
This is working, but requires to destroy and refetch the displaygroup everytime.
That's all
Any comment ?
Regards
Amedeo
On 13/gen/2011, at 18.04, Johann Werner wrote:
> Hi Amedeo,
>
> perhaps you could post the code you use to create the display group and set
> its qualifiers, so we can have a look at?
>
> jw
>
> Am 13.01.2011 um 16:53 schrieb Amedeo Mantica:
>
>> I have an ERXBatchingDisplayGroup that is working fine, but just today
>> calling the method filteredObject I discovered that the
>> ERXBatchingDisplayGroup will not return a real NSArray of objects but
>> instead a special ERXBatchingDisplayGroup.fakeArray that is not suitable for
>> me.
>>
>> So due to the fact that the datasource is small i decided to give up
>> batching and basically use the simpler ERXDisplayGroup, simply replacing
>> "ERXBatchingDisplayGroup" with "ERXDisplayGroup", but now the displaygroup
>> won't set qualifiers anymore.
>>
>> Any reason ?
>>
>> Thanks
>>
>> Regards
>> Amedeo
>
>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com
This email sent to [email protected]
