Re: binding a form value to a NSTimestamp field
Re: binding a form value to a NSTimestamp field
- Subject: Re: binding a form value to a NSTimestamp field
- From: Chuck Hill <email@hidden>
- Date: Tue, 18 Apr 2006 10:46:57 -0700
I won't claim there is one best way. Here is how I have been
handling these. First off, stop using dateFormat/numberFormat.
They are easy to use, but as you have seen, no help at all in
validating input. They are OK for output. So, what to use instead?
There is a formatter binding also available and I find that works
much better. You will then be able to catch the exception in your
page (in validationFailedWithException I believe) and handle it.
In order to make these easier to use, I usually declare them at the
application level using one of many variants of this:
protected static final NSTimestampFormatter dateFormatter = new
NSTimestampFormatter("%m/%d/%y");
public NSTimestampFormatter dateFormatter() {
return Application.dateFormatter;
}
This makes it easy to bind as in:
TextField5: WOTextField {
dateformat = application.dateFormat;
value = newDonor.dtDob;
}
HTH
Chuck
On Apr 18, 2006, at 8:55 AM, WebObjects wrote:
There's always an easier and better way, so why not ask? (right?)
I have a field in my form for collecting someone's date-of-birth.
The value
will store as an NSTimestamp in the dbase.
public void setDtDob(NSTimestamp value) {
takeStoredValueForKey(value, "dtDob");
}
Q: What is the best way to validate the users input, or get it to
conform
to what NSTimestamp will accept for a valid date format?
I have the field formatted like so:
TextField5: WOTextField {
dateformat = "%m/%d/%y";
value = newDonor.dtDob;
}
...however, this does nothing to protect me from a user who insists in
typing gobbly-goop into the field. I suppose a series of dropdown
elements
could help enforce input, but I'd rather use a way of catching the
exception
(here is the exception when user-input cannot be parsed):
[2006-04-18 08:19:52 PDT] <WorkerThread12> Validation failed on an
object
[java.lang.String] with keypath = newDonor.dtDob and exception:
Format.parseObject(String) failed
Does anyone have a good method written for testing the String in a
field
against a formatting (ie. "%m/%d/%y") ?
TIA,
-Bill
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