Question

Let’s say I have a datePicker called “foobar”:

<g:datePicker name="foobar" value="${new Date()}" precision="day" />

How do I read the submitted value of this date-picker?

One way which works but has some unwanted side-effects is the following:

def newObject = new SomeClassName(params)
println "value=" + newObject.foobar

This way of doing it reads all submitted fields into newObject which is something I want to avoid. I’m only interested in the value of the “foobar” field.

The way I originally assumed this could be done was:

def newObject = new SomeClassName()
newObject.foobar = params["foobar"]

But Grails does not seem to automatically do the translation of the foobar field into a Date() object.

Updated: Additional information can be found in the Grails JIRA.

Answer 1

Reading the g:datePicker value became a lot easier in Grails 1.2 (see release notes):

Better Date parsing

If you submit a date from a
tag,
obtaining the Date object is now as
simple as looking it up from the
params object by name (eg. params.foo
)