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This is how you get a real date/time-stamp (such as article published date) in Freemarker in Liferay. With support for multilingual sites. When working with multilingual/non-English sites, date/time-stamp can be a bit of a headache as the date strings are strings with english words in them, such as Thu, 08 May 2014 11:48:00 +0000, rather than a …
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<#-- ----------------------------------------------------------------- -> | |
- | |
- GETTING REAL TIME/DATE-STAMP | |
- | |
- When we ask Liferay for the create date of an article (or really we | |
- ask Liferay for the 'display-date' which is settable by the user) we get | |
- a string looking like this: 'Thu, 08 May 2014 11:48:00 +0000'. This | |
- string will always be in english and when we want to create a datetime | |
- object from it, we need to parse it with english locale. | |
- | |
- Therefor, when working with a non-english site we need to: | |
- 1) Save the original locale (e.g. 'sv_SE') to a variable | |
- 2) Set locale to 'en_US' | |
- 3) Parse the date string and create a date object from it | |
- 4) Set locale back to original locale, from variable. | |
- 5) Create a date string from the date object. | |
- | |
- Common pitfall: | |
- Swedish example: Most dates have similar names in Swedish and English. | |
- e.g.: the English dates '08 Jan 2014', '08 Feb 2014', '08 Mar 2014', | |
- '08 Apr 2014' are all the same as their Swedish counterpart, | |
- and are therefor parseable without doing any magic. | |
- | |
- However '08 May 2014' is not the same in Swedish ('08 maj 2014'), | |
- neither is 'oct'/'okt'. | |
- | |
- When developing, make sure you're working with content with | |
- display-date may or october. | |
- | |
<- ------------------------------------------------------------------ --> | |
<#-- Get Display Date (not created-date which is equal to when a user last | |
modified the content) | |
--> | |
<#assign date = .vars['reserved-article-display-date'].data> | |
<#-- Load timezone from language files, as we have multiple timezones. | |
If we just had one timezone, set it like: | |
<#setting time_zone = "Europe/Stockholm"> | |
--> | |
<#setting time_zone = languageUtil.get(locale, "template-timezone")> | |
<#-- Saving original locale to be able to reset it to that later --> | |
<#assign originalLocale = locale> | |
<#-- Set locale to en_US to be able to parse the date string and make it a date object --> | |
<#setting locale = 'en_US'> | |
<#assign date = date?datetime("EEE, d MMM yyyy HH:mm:ss Z")> | |
<#-- Set locale to the real (original) locale --> | |
<#setting locale = originalLocale> | |
<#-- As we want to display the date in different formats depending on the | |
language we get the date/time-format from the language files. Else | |
we could set it like this: | |
<#assign dateTimeFormat = "d MMMM yyyy"> | |
--> | |
<#assign dateTimeFormat = languageUtil.get(locale, "template-datetime-format")> | |
<#-- Create a date string from the date object --> | |
<#assign date = date?string(dateTimeFormat)> | |
<#-- END GETTING REAL TIME/DATE-STAMP --> | |
<#-- ----------------------------------------------------------------- --> |
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