Merge pull request #10473 from grails/GRAILS-10472

Fix link generation with class as the resource

Author: graemerocher

grails-web-url-mappings/src/main/groovy/org/grails/web/mapping/DefaultLinkGenerator.groovy

@@ -176,6 +176,8 @@ class DefaultLinkGenerator implements LinkGenerator, org.codehaus.groovy.grails.
                         } else if (DomainClassArtefactHandler.isDomainClass(resourceAttribute.getClass(), true)) {
                             resource = GrailsNameUtils.getPropertyName(resourceAttribute.getClass())
                             hasId = true
+                        } else if (resourceAttribute instanceof Class) {
+                            resource = GrailsNameUtils.getPropertyName(resourceAttribute)
                         } else {
                             resource = resourceAttribute.toString()
                         }

grails-web-url-mappings/src/test/groovy/org/codehaus/groovy/grails/web/mapping/RestfulResourceMappingSpec.groovy

@@ -924,6 +924,8 @@ class RestfulResourceMappingSpec extends Specification{
         expect:"The generated links to be correct"
             linkGenerator.link(controller:"book", action:"save", method:"POST") == "http://localhost/book"
             linkGenerator.link(controller:"book", action:"show", method:"GET") == "http://localhost/book"
+            linkGenerator.link(resource:"book", action:"show", method:"GET") == "http://localhost/book"
+            linkGenerator.link(resource:Book, action:"show", method:"GET") == "http://localhost/book"
             linkGenerator.link(controller:"book", action:"edit", method:"GET") == "http://localhost/book/edit"
             linkGenerator.link(controller:"book", action:"delete", method:"DELETE") == "http://localhost/book"
             linkGenerator.link(controller:"book", action:"update", method:"PUT") == "http://localhost/book"
@@ -1033,6 +1035,7 @@ class RestfulResourceMappingSpec extends Specification{
         expect:"The generated links to be correct"
 
         linkGenerator.link(controller:"publisher", params:[bookId:1]) == "http://localhost/books/1/publisher"
+        linkGenerator.link(resource: Book, method:"GET") == "http://localhost/books"
         linkGenerator.link(resource:"book/publisher", method:"GET", bookId:1) == "http://localhost/books/1/publisher"
         linkGenerator.link(resource:"book/publisher", bookId:1) == "http://localhost/books/1/publisher"
 
@@ -1060,3 +1063,7 @@ class RestfulResourceMappingSpec extends Specification{
         return new DefaultUrlMappingsHolder(allMappings)
     }
 }
+
+class Book {
+
+}