RE: [xwiki-users] Dates (was: Long arithmetic...?)
by THOMAS, BRIAN M (SBCSI)
Thanks. I'm still baffled, and this is another solution that requires
programmer access to the wiki, but at this point, some solution is
better than no solution. I've even considered throwing in some
JavaScript code to do it.
It has been suggested by a co-worker that the java.util.Calendar class
has the date arithmetic needed, but I don't know how to instantiate a
class that isn't part of, or returned from a method on, an XWiki object,
and I don't see any that do that.
brain[sic]
-----Original Message-----
From: Mark Robinson [mailto:mark.robinson@hk.tntfreight.com]
Sent: Friday, March 10, 2006 7:01 PM
To: xwiki-users(a)objectweb.org
Subject: Re: [xwiki-users] Dates (was: Long arithmetic...?)
Typical. I missed a brace off the if statement.
Sorry if you just cut and pasted the wrong answer.
Cheers,
Mark.
CORRECTION BELOW
Hi Brian.
I am not sure about with Velocity but you should be able to do this
easily with a Groovy script.
It basically is Java without the braces and type declarations so it is
very powerful. Apologies if I have it wrong below but I have only
started playing with it a few days ago.
Try something like this below in your page.
<%
def today = new Date()
println today
if(testitem < (today - 7))
{
println "This is more than a week old"
}
else
{
println "This is less than a week old"
}
%>
If someone who knows Groovy well can correct that for you it might be a
solution.
Hope it helps.
Cheers,
Mark
On 11 Mar 2006, at 1:19 AM, THOMAS, BRIAN M ((SBCSI)) wrote:
It troubles me that no one has had an answer to this so far.
I tried asking roughly the same question of the velocity-users list and
was told that a new version of Velocity now does arithmetic with
non-integer numbers, but two things make that problematic: first, I
have limited access to the server to install software; second, I can't
believe that no one in all of XWiki's lifetime has ever tried to do any
date calculations, such as the difference of two dates, or
adding/subtracting intervals.
Isn't there an easier way to do this? All I want to do is decide
whether something's a week old.
brain[sic]
-----Original Message-----
From: THOMAS, BRIAN M (SBCSI)
Sent: Friday, March 03, 2006 5:18 PM
To: xwiki-users(a)objectweb.org
Subject: [xwiki-users] Long arithmetic...?
It seems that a Velocity #set directive fails when the RHS involves any
arithmetic operation with long integers.
Specifically, I just wanted to determine the difference between two
dates, thus:
#set ($age = $xwiki.currentDate.time -
$obj.xWikiObject.getDateValue("donedate").time)
I confirmed that I got credible results from both of the operands by
printing them, and I could assign either of them to another variable
name, but setting $age to the result of any arithmetic operation with
any of them always gave "$age" as the formatted result.
This shouldn't be this hard, should it?
brain[sic]
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