[xwiki-users] Dates (was: Long arithmetic...?)
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@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]
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@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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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@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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participants (2)
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Mark Robinson -
THOMAS, BRIAN M (SBCSI)