Yes, there are many possible solutions. Just a matter of taste.
Jason Carreira wrote:
You could have an anonymous subclass of OgnlList which expects a String[] in the set(int, Object) method and gets the first String and calls super.set(index, StrArray[0])
-----Original Message-----
From: Jonas Eriksson [mailto:[EMAIL PROTECTED] Sent: Thursday, November 06, 2003 11:55 AM
To: [EMAIL PROTECTED]
Subject: Re: [OS-webwork] OGNL list question again
Ok, thanks for the help. I didn't know about the "always use String[] in parameter map" thing.
The number of input fields are dynamic in my view, and therefore I used the OgnlList.
I didn't have any luck with adding add(String) or set(int, String) to my List, ognl just uses the set(int, Object obj) method (obj = String[]). I tried using a String[] instead of a List, didn't work. I tried using index getters and setters in my action (instead of returning the list, array), didn't work.
My solution to this is to create a data placeholder that I put in my OgnlList. By using it I can write
<input type="text" name="list[1].string" ...
Cheers Jonas
John Patterson wrote:
Form values in the parameter map are always of type
String[] even if
they contain only one value. This is because you may
return muliple
values with the same name (ie checkboxs) from an html form.
You do not need to use an OnglList here. When you use an
OgnlList it
is prepopulated with objects so that you can set properties
on those
objects. In your example the List is populted with Strings
(immutable)
which are then replaced by the String[] value from the
parameter map.
You could instead extend List with a add(String) method which would use XWorks type conversion to use the first String in the array.
John.
----- Original Message ----- From: "Jonas Eriksson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, November 05, 2003 9:13 PM Subject: [OS-webwork] OGNL list question again
Hi!
I can not understand why I get arrays (instead of Strings)
when OGNL
populates my list in my action!
In action:
// Use OgnlList so we don't get out of bounds private List theList = new OgnlList(String.class)
public List getList() { return theList; }
In view:
<input type="text" name="list[1]" size="2" maxlength="2"> <input type="text" name="list[2]" size="2" maxlength="2"> and so on...
Then in my action, theList will contain an array of size 1
in position
1 and 2. Of course I want the string object directly in theList.
I'm using the latest from cvs. (ww2, xw)
Thanks Jonas
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