Re: Setting a custom EOFetchSpecification for a WODisplayGroup
On 29/10/2007, at 9:30 PM, Paul Lynch wrote:
I am very much a WO novice, just working my way through Ruzek's "WO
web application construction kit".
WOWACK is a little old now, being WO 4.5; but I still like it the
best of the entry level books.
Yes, it still seems to be usable. Well, it was usable given I had
worked through about half of it before upgrading to Leopard and losing
the Apple GUI tools. I don't know how someone would go starting from
scratch with WOWACK now...
What I
_thought_ I could do was replace the literal declaration of
fetchSpecification for the WODisplayGroup (which I just copied over
from something auto-generated from WO Builder) with a reference to a
method in the component's Java class that returned an
EOFetchSpecification. That is, instead of this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = {
class = EOFetchSpecification;
entityName = Task;
fetchLimit = 0;
isDeep = YES;
};
};
I tried this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = activeFetchSpec;
};
Try:
fetchSpecification = "activeFetchSpec";
for your binding, assuming that this is a method in the component
that returns a fetch spec.
That didn't _seem_ to work (it was the method returning an
EOFetchSpecification), but I've now changed several things since I
asked the question, most notably upgrading to WO 5.4. I've also
ditched the idea of using WODisplayGroups in the application anyway.
If I take another look at it later and work it out, I'll reply to the
list.
--
Paul.
w http://logicsquad.net/
h http://paul.hoadley.name/
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Re: Setting a custom EOFetchSpecification for a WODisplayGroup
On 29 Oct 2007, at 10:04, Jean Pierre Malrieu wrote:
You have more control if you create the displayGroup in your code
(for example in the component constructor, or in initialization for
your component).
First create a EODatabaseDataSource, then the displayGroup.
You can then use setFetchSpecification(EOFetchSpecification
fetchSpec) or setFetchSpecificationByName(String
fetchSpecificationName) on your datasource object. To get the
objects, either set "fetchOnload" or use "qualifyDataSource" on the
displayGroup.
You don't need to create the displayGroup in code to set its fetch
spec, although it can be interesting to do.
I am very much a WO novice, just working my way through Ruzek's "WO
web application construction kit".
WOWACK is a little old now, being WO 4.5; but I still like it the
best of the entry level books.
What I
_thought_ I could do was replace the literal declaration of
fetchSpecification for the WODisplayGroup (which I just copied over
from something auto-generated from WO Builder) with a reference to a
method in the component's Java class that returned an
EOFetchSpecification. That is, instead of this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = {
class = EOFetchSpecification;
entityName = Task;
fetchLimit = 0;
isDeep = YES;
};
};
I tried this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = activeFetchSpec;
};
Try:
fetchSpecification = "activeFetchSpec";
for your binding, assuming that this is a method in the component
that returns a fetch spec.
Paul
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Re: Setting a custom EOFetchSpecification for a WODisplayGroup
You have more control if you create the displayGroup in your code (for
example in the component constructor, or in initialization for your
component).
First create a EODatabaseDataSource, then the displayGroup.
You can then use setFetchSpecification(EOFetchSpecification fetchSpec)
or setFetchSpecificationByName(String fetchSpecificationName) on your
datasource object. To get the objects, either set "fetchOnload" or use
"qualifyDataSource" on the displayGroup.
HTH
JPM
Hello,
I am very much a WO novice, just working my way through Ruzek's "WO
web application construction kit".
I'm writing a very simple application. I have a table called
"task" (in a PostgreSQL database), and one of the columns is
"active". What I thought I'd do is set up two WODisplayGroups, one
to collect the tasks where active == 'yes', the other for tasks where
active == 'no', as I want to display them in two separate tables.
I'm using Eclipse 3.2.2, so I'm hand-editing the WOO file. What I
_thought_ I could do was replace the literal declaration of
fetchSpecification for the WODisplayGroup (which I just copied over
from something auto-generated from WO Builder) with a reference to a
method in the component's Java class that returned an
EOFetchSpecification. That is, instead of this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = {
class = EOFetchSpecification;
entityName = Task;
fetchLimit = 0;
isDeep = YES;
};
};
I tried this:
dataSource = {
class = EODatabaseDataSource;
editingContext = "session.defaultEditingContext";
fetchSpecification = activeFetchSpec;
};
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Re: Setting a custom EOFetchSpecification for a WODisplayGroup
On 29/10/2007, at 3:41 PM, Paul Hoadley wrote: I am very much a WO novice, just working my way through Ruzek's "WO web application construction kit". I'm writing a very simple application. I have a table called "task" (in a PostgreSQL database), and one of the columns is "active". What I thought I'd do is set up two WODisplayGroups, one to collect the tasks where active == 'yes', the other for tasks where active == 'no', as I want to display them in two separate tables. I'm using Eclipse 3.2.2, so I'm hand-editing the WOO file. Latest WOLips with Eclipse 3.3.1[.1] has a graphical editor for display groups. with regards, -- Lachlan Deck ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
