Re: Date manipulations in Freemarker Templates

Thursday, October 25, 2012, 10:44:01 PM, Navin wrote:

> Hi,
>   Is there a way to manipulates dates in freemarker template.
>
> I want to add some days/month/year in the current date and want to compare
> it with
> another date. Is there any way to do this?

Sorry, there's no built-in way. (Actually, you could do some tricks
with converting a date to string, increase the day in the string, then
converting it back to a date, because FM supports these conversions...
But it's lame and you had to know how many day a month has.) You will
have write some TemplateMethodModelEx implementations that get a Date
as parameter, do the calendar-math, then return the new Date. Let's
say you write com.example.AddToDateMethodModelEx, then pull it into an
FTL library with
`<#assign addToDate = 'com.example.AddToDateMethodModelEx'?new()>`,
then in the templates you can #import that library like
`<#import '/lib/dateUtils.ftl.' as du>` so you can do
`du.addToDate(someDate, 1)` and such.

> -Navin

-- 
Best regards,
 Daniel Dekany


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