CODEWITHSUNDEEP
grails
iCode
iCode

Reputation: 4338

Dynamic Content of the layout page in Grails

Imagine you layout page of your grails application has some dynamic content that gets update on each page request. When a page is requested, the controller that is requested has nothing to do with the dynamic data provided by the main.gsp page. How should I manage this?

I mean when a page is requested, how do I update the dynamic portion of the layout portion that the page controller is agnostic about? Plus I do not want to put layout dynamic code is every controller.

Upvotes: 1

Views: 515

Answers (1)

Kelly
Kelly

Reputation: 3709

You might be able create a TagLib for this.

grails create-tag-lib myLayout

Then make your taglib responsible for the remote service calls. You can do pretty much anything in a taglib that you can to in a controller, and you can also call any Grails services you've already created.

class MyLayoutTagLib {
    static namespace = "myLayout"
    def stockQuoteService

    def getStockPrice = { attrs ->     
        out <<  stockQuoteService.getLatestPrice(attrs.stockSymbol)
    }
}

Then in your gsp

<myLayout:getStockPrice stockSymbol="${user.favoriteStockSymbol}" />

Or however you get the relevant data to make the remote service call.

Upvotes: 1

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