(Quick Reference)
                form
Purpose
Creates a form that submits to a controller, action, and/or id. Beyond what is described below, all the usual HTML attributes apply.
Examples
Example controller for an application called "shop":
class Book {
    def list() {
        [books: Book.list(params)]
    }    def show() {
        [book: Book.get(params.id)]
    }
}Example usages for above controller:
<g:form name="myForm" action="myaction" id="1">...</g:form>
results in:
<form action="/shop/book/myaction/1" method="post"
      name="myForm" id="myForm">
…
</form><g:form name="myForm" url="[action:'list',controller:'book']">...</g:form>
results in:
<form action="/shop/book/list" method="post" name="myForm" id="myForm">
…
</form><g:form action="show">...</g:form>
results in:
<form action="/shop/book/show" method="post" >...</form>Description
Attributes
- action(optional) - The name of the action to use in the link; if not specified the default action will be linked
- controller(optional) - The name of the controller to use in the link; if not specified the current controller will be linked
- id(optional) - The id to use in the link
- fragment(optional) - The link fragment (often called anchor tag) to use
- mapping(optional) - The named URL mapping to use to rewrite the link
- params(optional) - A Map of request parameters
- url(optional) - A map containing the action,controller,id etc.
- relativeUri(optional) - Used to specify a uri relative to the current path.
- absolute(optional) - If- truewill prefix the link target address with the value of the- grails.serverURLproperty from- application.groovy, or http://localhost:<port> if there is no setting in- application.groovyand 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- absoluteproperty, if both are specified.
- name(optional) - A value to use for both the name and id attribute of the form tag
- useToken(optional) - Set whether to send a token in the request to handle duplicate form submissions. See Handling Duplicate Form Submissions
- method(optional) - The form method to use, either- POSTor- GET; defaults to- POST
Source