Google Search Appliance Creating the Search Experience Manual do Utilizador descarregar pdf (Página 124)

Google Search Appliance: Creating the Search Experience Advanced Customization Topics 124

Including an Image Link for Results

Placing small images in the search results enhances the visual appeal of the results page. Because

experience has trained many users to click icons and pictures, it is helpful to make each image a link to

the search result, just as the result title is a link to the result. The “HTML Form Example Page” on

page 113 shows image links presented in the results pages.

XSLT Code for Image Links

The thumbnail-sized image links in the example pages are derived from a small block of XSLT code

added after the variable declarations in the “single result” section of example-frontend_stylesheet.en.xslt.

To find this block in the example stylesheet, search for the comment text “

<!--Include image

” and

look for the following code:

<xsl:for-each select="MT">

<xsl:if test="@N='product-image' and @V!=''">

</a>

</xsl:if>

</xsl:for-each>

The XSLT image block iterates through each

(meta tag) element in the result set and tests for non-

empty values for the tag

product-image

. Then it includes the meta tag value inside a link to the results

URL as represented by the concatenated variables protocol and escaped_url.

It is important to locate this XSLT block after the variable declarations located at the beginning of the

“single result” XSLT block. Because the image block uses two of these variables, it will throw an error in

the XSLT stylesheet editor if it is located before the variable is declared.

Image Meta Tag

Each product description page in this example includes a meta tag named

product-image

containing

an absolute link to a thumbnail image. Because relative links do not work in the search results page, the

meta tag values must be absolute links. For example, on mywebserver the prince nymph example page

would include this meta tag:

prince_small.jpg" />

The exact meta tag name is important, because it is required as a value for the search request

parameter

getfields

and also it is tested in a conditional clause in the XSLT code. All pages for which

you want to present a results image must include a meta tag like this one, with the name properly

referenced in the stylesheet and in

getfields

You must explicitly retrieve the meta tags you want from the result set in order for them to be

transformed by the XSLT code. You can do this by adding

getfields="meta_tag_name"

to your search

request, or use

getfields=

"*" to retrieve all meta tags. See the Search Protocol Reference for more

information on adding query parameters to the search request.

1 2 ... 119 120 121 122 123 124 125 126 127 128 129 ... 140 141

Comentários a estes Manuais

Sem comentários

Google Search Appliance Creating the Search Experience Manual do Utilizador Página 124

Comentários a estes Manuais

Manuais e produtos relacionados com Software Google Search Appliance Creating the Search Experience