(Quick Reference)
remoteFunction
The formFunction tag and other Ajax related tags have been deprecated and will be removed from a future version of Grails. Applications may provide their own Ajax tags and/or Javascript plugins may provide Ajax tags of their own.
Purpose
Creates a remote JavaScript function that can be assigned to a DOM event to call the remote method
Examples
Example controller for an application called
shop:
class BookController { def list() {
[books: Book.list(params)]
} def show() {
[book: Book.get(params.id)]
} def bookByName() {
[book: Book.findByName(params.bookName)]
}
}Example usages for above controller:
$('mydiv').onclick = <g:remoteFunction action="show" id="1" />Example as a method call in GSP only:
<select onchange="${remoteFunction(action: 'bookByName',
update: [success: 'great', failure: 'ohno'],
params: '\'bookName=\' + this.value')}">
<option>first</option>
<option>second</option>
</select>Example changing the asynchronous option to false:
<select from="[1,2,3,4,5]" onchange="${remoteFunction(action: 'bookByName',
update: [success: 'great', failure: 'ohno'],
options: '[asynchronous: false]'}" />Description
This tag writes a Javascript function call that fires an AJAX request. The exact Javascript used to fire off the AJAX request depends on which Javascript library is used. This tag also requires the use of either the <g:
javascript/> or <g:
setProvider/> tags. See the
AJAX section of the user guide to find out more.
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 linkedid (optional) - The id to use in the linkupdate (optional) - Either a Map containing the elements to update for 'success' or 'failure' states, or a string with the element id to update, in which case failure events would be ignoredbefore (optional) - The JavaScript function to call before the remote function call. A semi-colon is automatically added so you don't have to provide one yourself in this string.after (optional) - The JavaScript function to call after the remote function call. A semi-colon is automatically added so you don't have to provide one yourself in this string.asynchronous (optional) - Whether to do the call asynchronously (defaults to true, specified in 'options' Map)method (optional) - The method to use the execute the call (defaults to POST, specified in 'options' Map)
Events
onSuccess (optional) - The JavaScript function to call if successfulonFailure (optional) - The JavaScript function to call if the call failson_ERROR_CODE (optional) - The JavaScript function to call to handle the specified error code (eg on404="alert('not found!')")onUninitialized (optional) - The JavaScript function to call if Ajax fails to initialiseonLoading (optional) - The JavaScript function to call when the remote function loads the responseonLoaded (optional) - The JavaScript function to call when the remote function completes loading the responseonComplete (optional) - The JavaScript function to call when the remote function completes, including any updates
Source
