Java Reference
In-Depth Information
40.<td>${fieldValue(bean: bookInstance, field: "price")}</td>
41.
42.<td>${fieldValue(bean: bookInstance, field: "isbn")}</td>
43.
44.</tr>
45.</g:each>
46.</tbody>
47.</table>
48.<div class="pagination">
49.<g:paginate total="${bookInstanceTotal}" />
50.</div>
51.</div>
52.</body>
53.</html>
Line 14
: The
<g:link>
tag creates a link to the
create
action of the
BookController
.
Line 19
: The
<g:if>
tag checks for the existence of
flash.message
that was
stored in the action and, if found, displays it.
Lines 26 to 31
: The
<g:sortableColumn>
tag is used to provide sorting on our
list view.
Lines 35 to 45
: The
<g:each>
tag iterates over the
bookInstanceList
. Each item
in the list is assigned to the
bookInstance
variable. The body of the
<g:each>
tag fills in the table row with the properties of the
bookInstance
. In the line
<tr class="${(i % 2) == 0 ? 'even' : 'odd'}">
, a Groovy expression is used
to determine the style class of the
<tr>
, and the
fieldValue( )
method is used
to render the value of each
Book
property.
Line 49
: The
<g:paginate>
tag displays the pagination controls if there are
enough elements in the list view. The
bookInstanceTotal
is used from
Listing 7-19, as mentioned earlier.
The Create View
The create view is illustrated in Listing 7-28.
Listing 7-28. create.gsp
1.<%@ page import="bookstore.Book" %>
2.<!DOCTYPE html>
3.<html>
4.<head>
5.<meta name="layout" content="main">
6.<g:set var="entityName" value="${message(code: 'book.label', default: 'Book')}" />
7.<title><g:message code="default.create.label" args="[entityName]" /></title>
8.</head>
9.<body>
10.<a href="#create-book" class="skip" tabindex="-1"><g:message code="default.link.skip.label"
default="Skip to content…"/></a>
