(Quick Reference)
createLink
Purpose
Creates a link that can be used where necessary (for example in an href, JavaScript, Ajax call etc.)
Examples
Example controller for an application called "shop":
class BookController { static defaultAction = "list" def list() {
[books: Book.list(params)]
} def show() {
[book: Book.get(params.id)]
}
}Example usages for above controller:
// generates "/shop/book/show/1"
<g:createLink action="show" id="1" />// generates "/shop/book/show?foo=bar&boo=far"
<g:createLink action="show" params="[foo: 'bar', boo: 'far']"/>// generates "/shop/book"
<g:createLink controller="book" />// generates "/shop/book/list"
<g:createLink controller="book" action="list" />// generates "/shop/book/list"
<g:createLink url="[action:'list',controller:'book']" />// generates a link tot he book controller in the publishing namespace
<g:createLink controller="book" namespace="publishing"/>// generates "http://portal.mygreatsite.com/book"
<g:createLink controller="book" absolute="true"/>// generates "http://admin.mygreatsite.com/book"
<g:createLink controller="book" base="http://admin.mygreatsite.com"/>// generates "/shop/book/list/1?title=The+Shining&author=Stephen+King"
<g:createLink controller="book" action="list"
params="[title: 'The Shining', author: 'Stephen King', id: '1']"/>Example as a method call in GSP:
<a href="${createLink(action: 'list')}">my link</a>results in:
<a href="/shop/book/list">my link</a>
Description
Attributes
action (optional) - The name of the action to use in the link; if not specified the default action will be linkedcontroller (optional) - The name of the controller to use in the link; if not specified the current controller will be linkednamespace (optional) - the namespace of the controller to use in the linkplugin (optional) - the name of the plugin which provides the controllerid (optional) - The id to use in the linkfragment (optional) - The link fragment (often called anchor tag) to usemapping (optional) - The named URL mapping to use to rewrite the linkparams (optional) - A Map of request parametersurl (optional) - A Map containing the action,controller,id etc.uri (optional) - A string for a relative path in the running app.relativeUri (optional) - Used to specify a uri relative to the current path.absolute (optional) - If true will prefix the link target address with the value of the grails.serverURL property from application.groovy, or http://localhost:<port> if there is no setting in application.groovy and not running in production.base (optional) - Sets the prefix to be added to the link target address, typically an absolute server URL. This overrides the behaviour of the absolute property if both are specified.event (optional) - The name of a Webflow event to trigger for the flow associated with the given action. Requires the Webflow plugin.
Source
