Re: How to use WODisplayGroup
Re: How to use WODisplayGroup
- Subject: Re: How to use WODisplayGroup
- From: Francesco Romano <email@hidden>
- Date: Sun, 7 Dec 2008 15:44:52 +0100
On 07/dic/08, at 15:24, Johann Werner wrote: Hi Francesco, Am 07.12.2008 um 14:54 schrieb Francesco Romano: I can't modify it..
This is the code: (inside a form)
<wo:form>
<fieldset>
<wo:if condition = "$isTableLuogo">
<wo:loop list = "$ipnDisplayGroup.displayedObjects" item = "$aLuogo">
<p><wo:textfield value = "$aLuogo.nome"></wo:textfield></p>
</wo:loop>
</wo:if>
<p><wo:link action=""> aggiungiElemento</wo:link></p>
<p> <wo:link action = "">Applica</wo:link>
<wo:link action = "">Annulla</wo:link>
<wo:link action = "">Salva</wo:link></p>
</fieldset>
</wo:form>
If I try to edit the field, and press "Apply" the record is not updated...
What is wrong?
(This is the code for applyChanges)
public WOActionResults applyChanges() {
session().defaultEditingContext().saveChanges();
return null;
}
First let me note that using the defaultEditingContext for modifying and saving objects is A Bad Thing™. Looking at your page code it should work but... the problems that could cause your page not function as you expect are: 1. when you submit the changes is it possible that your condition isTableLuogo changes during the takeValuesFromRequest phase? 2. what is the editingContext of your ipnDisplayGroup? If it is not using the default editing context of course you wont do anything by calling saveChanges on the defaultEditingContext. Another little tip you should return context().page() instead of null. What is the difference of your applyChanges() and saveChanges()? jw
I'm learning webobject while coding.. So I can do errors and do something "very ugly" that (temporary) work.. I'm happy to be corrected! (it was the same with Cocoa when I started :) )
So... The easiest answer: The difference between Apply and save is that apply commit the changes, and save commit changes and change page.
Than... why I use that condition... Maybe I'm making a "very bad Thing"... There are a lot of WOComponent... so.. I created a generic WOComponent to show the tables... and with the if I check which table should I show... is this a bad thing? (I think yes...)
This is the code when I created the WODisplayGroup:
EODatabaseDataSource ds = new EODatabaseDataSource(session().defaultEditingContext(),_table); ipnDisplayGroup.setDataSource(ds); ipnDisplayGroup.fetch();
And... if using defaultEditingContext is a bad thing.. what should I use??
Francesco |
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