CODEWITHSUNDEEP
javacoldfusionnumbersstring-formattingcurrency
m_evangelista
m_evangelista

Reputation: 534

Get currency symbol aka localeconv() in ColdFusion?

I'm doing some javascript work inside a ColdFusion shopping cart, and I need to be able to format some numbers in js which will mimic LScurrencyFormat() in CF.

Currently we are taking the first (left,1) character of a formatted string but that doesn't work for currencies like Yen or Euro which come after the number, not to mention any multiple character currency symbols.

What I need to find, based on the current CF locale, is

From there i can run my own js formatting to make the formatted numbers come out as expected on the page.In php we can use localeconv() to get these values... how can I find them in CF?

Upvotes: 3

Views: 995

Answers (2)

coldfusionPaul
coldfusionPaul

Reputation: 171

getLocale() returns the old cf5 style locale "names" but only for those locales supported by cf5. if you dump out the supported locales (Server.Coldfusion.SupportedLocales) you'll see the goofy old cf5 style locale names as well as the core java locale IDs (ie both "Chinese(China)" and "zh_CN"). if your locale wasn't one of the cf5 supported locales you should see the core java locale ID (ie th_TH for thai, thailand). see

http://cfbugs.adobe.com/cfbugreport/flexbugui/cfbugtracker/main.html#bugId=82474

as a small tweak to leigh's answer, you should also be concerned with the currency/locale's fraction digits. for instance in normal practice, you can't have part of a yen (ie 1.1 isn't quite kosher). you can get that info from the Currency class's getDefaultFractionDigits() method:

result.fractionDigits=currency.getDefaultFractionDigits();

Upvotes: 1

Leigh
Leigh

Reputation: 28873

I am not aware of any built in functions. However, you can obtain the first two items from java. As far as the third, the closest suggestion I have seen is to parse the localized number pattern and detect the position of the currency sign ie \u00A4. Note: It is just a mask placeholder. It is not the same as the actual currency symbols like "$" or "£".

Edit: As discussed in the comments, getLocale() returns some user friendly name which unfortunately does not quite line up with java's. The easiest way to get the java locale object for the current request is using getPageContext().getResponse().getLocale(). 

<cfscript>
    // Get the current locale as a java object 
    javaLocale = getPageContext().getResponse().getLocale();

    // get numeric settings for that locale
    currency = createObject("java", "java.text.DecimalFormat").getCurrencyInstance(javaLocale);
    symbols = currency.getDecimalFormatSymbols();

    // 164 => decimal code point for currency sign 
    currencyPattern = currency.toLocalizedPattern();
    result.hasTrailingCurrencySymbol = currencyPattern.indexOf(javacast("int", 164)) > 0;
    result.currencySymbol = symbols.getCurrencySymbol();
    result.decimalSeparator= symbols.getDecimalSeparator();

    WriteDump(result);
</cfscript>

Upvotes: 5

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