render

Purpose

To render different forms of responses from simple text responses, to view and templates.

Examples

// renders text to response
render "some text"
// renders text for a specified content-type/encoding
render(text:"<xml>some xml</xml>",contentType:"text/xml",encoding:"UTF-8")
// render a template to the response for the specified model
render(template:"book",model:[book:new Book(title:'The Shining',author:'Stephen King')])
// render each item in the collection using the specified template
render(template:"book",collection:[b1, b2, b3])
// render a template to the response for the specified bean
render(template:"book",bean:new Book(title:'The Shining',author:'Stephen King'))
// render the view with the specified model
render(view:"viewName",model:[book:new Book(author:'Stephen King')])
// render the view with the controller as the model
render(view:"viewName")
// render some markup to the response
render {
    div(id:"myDiv", "some text inside the div")
}
// render some XML markup to the response
render(contentType:"text/xml") {
    books {
         for(b in books) {
            book(title:b.title,author:b.author)
         }
    }
}
// render a JSON ( http://www.json.org ) response with the builder attribute:
render(contentType:"text/json") {
	book(title:b.title,author:b.author)
}
// Automatic marshalling of XML and JSON
import grails.converters.*
…
render Book.list(params) as JSON
render Book.get(params.id) as XML

Description

A multi-purpose method for rendering responses to the client which is best illustrated with a few examples! Warning, as of Grails 0.5, this method does not always support multiple parameters. For example, if you specify both collection and model, the model parameter will be ignored. Parameters

Parameters: