Need help Using EL in javascript to get value from model

Question

I have a an object stored in the model called "domain", which has two methods, getDescriptionEn() and getDescriptionFr().

I need the description depending on the current locale.

Here is my problem, I have the following:

var locale = "${currentLocale}"; // This returns either "En" or "Fr"

var method = "{domain.getDescription".concat(locale).concat("}"); // This is "{domain.getDescriptionEn}" or "{domain.getDescriptionFr}"

var expr = "$".concat(method); // This is going to be "${domain.getDescriptionFr}"

now I would like to evaluate this expressoin but it does not seem to work.

I have tried parsing the strings many different ways,

I also tried:

var method = "domain.getDescription".concat(locale); // This is "domain.getDescriptionEn" or "domain.getDescriptionFr"

var expr = "${".concat(method).concat("}");

Francisco Paulo · Accepted Answer · 2012-03-23 17:16:13Z

2

By the time your javascript gets a chance to run on the client the JSP has already been evaluated (along with any EL) and you won't be able to access model that way.

However, you can do all that you want directly in the JSP. Use ${pageContext.request.locale} to access the locale of the client's request and pass it on to your method.

answered Mar 23, 2012 at 17:16

Francisco Paulo

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2 Comments

Shehryar Farooq Over a year ago

I need to access domain.getDescriptionEn or domain.getDescriptionFr according to the locale, but I NEED to access from the JSP, from within a javascript function.

Francisco Paulo Over a year ago

But you realize that your JSP code runs in the server, before being sent to the client and that the javascript is executed by the client, after it has received the response (with all of the JSP code already executed) by the server. If you need a var in JS with the description, you can to do something like: var description = <%= domain.getDescription(currentLocale) %>;

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