Because there is extensive linking between products and categories in the Pioneer Cycling store, we created a code fragment to produce hyperlinks to products or categories in ItemLink.jsp. This code fragment was created for convenience and to make our template pages easier to read.
<% /* ------------------------------------------------------- * Display a link to the Item (Product or Category). * The link will take you to the jsp page which displays * this Item. The jsp page is fetched from the * "template.url" attribute on the Item. * If an Image is passed in, both the Image, and a text * link is displayed - clicking either the Image or the * text link brings the user to the above described jsp page. * ------------------------------------------------------- */ %> <dsp:importbean bean="/atg/dynamo/droplet/IsNull"/> <DECLAREPARAM NAME="Item" CLASS="java.lang.Object" DESCRIPTION="A Repository Item to display a link to - typically a Product or Category"> <DECLAREPARAM NAME="Image" CLASS="java.lang.String" DESCRIPTION="The optional param is used to display an image along with the link." OPTIONAL> <DECLAREPARAM NAME="navAction" CLASS="java.lang.String" DESCRIPTION="How to change the navigation history. Choices are push, pop and jump. Blank is treated as push." OPTIONAL> <DECLAREPARAM NAME="DisplayText" CLASS="java.lang.String" DESCRIPTION="This optional string can be passed in to display different text (than what is default). The default text to display is the Item's DisplayName" OPTIONAL> <% /* Display link in bold: */ %> <b> <% /* ------------------------------------------------------- * Display a clickable link to the Item (Product or Category). * The link will take you to the jsp page which displays * this Item. The jsp page to go to for this Item is * specified in the "template.url" attribute on the Item. * ------------------------------------------------------- */ %> <dsp:getvalueof id="templateUrl" idtype="String" param="Item.template.url"> <dsp:a page="<%=templateUrl%>"> <dsp:param name="id" param="Item.repositoryId"/> <dsp:param name="navCount" bean="/atg/commerce/catalog/CatalogNavHistory.navCount"/> <% /* These set for breadcrumb navigation: */ %> <dsp:param name="navAction" param="navAction"/> <dsp:getvalueof id="imageInp" param="Image"> <core:ifNotNull value="<%=imageInp%>"> <font color=000000> <dsp:getvalueof id="imageURL" param="Image.url" idtype="java.lang.String"> <core:ifNotNull value="<%=imageURL%>"> <img border="1" src="<%=imageURL%>"> </core:ifNotNull> </dsp:getvalueof> </font> <br> </core:ifNotNull> </dsp:getvalueof> <%-- Show DisplayText if set, otherwise show item's display name --%> <dsp:valueof param="DisplayText"><dsp:valueof param="Item.displayName"/></dsp:valueof> </dsp:a> </dsp:getvalueof> <% /* end link in bold: */ %> </b>
The ItemLink.jsp code fragment takes at least one parameter: Item. The item must be a repository item (for example, a product or a category) that has a template.url value in the database. The value of the template.url property is the JSP template file that should be used to display this repository item. The code creates a hyper link to whatever JSP file is stored in the item’s template.url value.
<%/* Display a link to the Product: */%> <dsp:include page="../common/ItemLink.jsp" flush="true"> <dsp:param name="Item" param="Product"/> <dsp:param name="Image" param="Product.thumbnailImage"/> <dsp:param name="DisplayText" param="Product.displayName"/> <dsp:param name="navAction" value="jump"/> </dsp:include>
The above call to the ItemLink.jsp code fragment is turned into the a HTML code similar to the following after it is rendered:
<b><a href="/PioneerCyclingJSP/en/catalog/product_generic.jsp?id=prod10023 &navAction=jump&navCount=5"> <font color=000000> <img src="/MEDIA/ProductCatalog/m10027_helmets_red_sm.gif" border=1> </font> <br> Shatterproof Helmet </a></b>
