8.3.11 Named URL Mappings 4.0.6

(Quick Reference) # 8.3.11 Named URL Mappings Version: 4.0.6 ## 8.3.11 Named URL Mappings URL Mappings also support named mappings, that is mappings which have a name associated with them. The name may be used to refer to a specific mapping when links are generated. The syntax for defining a named mapping is as follows:
    static mappings = {
       name <mapping name>: <url pattern> {
          // ...
       }
    }
For example:
    static mappings = {
        name personList: "/showPeople" {
            controller = 'person'
            action = 'list'
        }
        name accountDetails: "/details/$acctNumber" {
            controller = 'product'
            action = 'accountDetails'
        }
    }
The mapping may be referenced in a link tag in a GSP.
    <g:link mapping="personList">List People</g:link>
That would result in:
    <a href="/showPeople">List People</a>
Parameters may be specified using the params attribute.
    <g:link mapping="accountDetails" params="[acctNumber:'8675309']">
        Show Account
    </g:link>
That would result in:
    <a href="/details/8675309">Show Account</a>
Alternatively you may reference a named mapping using the link namespace.
    <link:personList>List People</link:personList>
That would result in:
    <a href="/showPeople">List People</a>
The link namespace approach allows parameters to be specified as attributes.
    <link:accountDetails acctNumber="8675309">Show Account</link:accountDetails>
That would result in:
    <a href="/details/8675309">Show Account</a>
To specify attributes that should be applied to the generated `href`, specify a `Map` value to the `attrs` attribute. These attributes will be applied directly to the href, not passed through to be used as request parameters.
    <link:accountDetails attrs="[class: 'fancy']" acctNumber="8675309">
        Show Account
    </link:accountDetails>
That would result in:
    <a href="/details/8675309" class="fancy">Show Account</a>
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