On May 25, 2009, at 11:15 AM, Jörg Agatz wrote:
I will use Solitas for solr..
Yay! Our first customer ;)
At the moment, Solitas present All fields in the Results, but i
musst change
it and present only some, Like id, name, cat and inStock
(exampledocuments)
i think that is the code to post all fields..
<div class="result-document">
#foreach($fieldname in $doc.fieldNames)
<p>
<span class="field-name">$fieldname :</span>
<span>
#foreach($value in $doc.getFieldValues($fieldname))
$value
#end
</span>
</p>
#end
Right - this is just generic code to show all stored fields from the
document (TODO: and really should be adjusted to be fl parameter aware).
Maby someone can explain me how i can change the code to get some
field
Sure... first, this page describes the objects you have available in
the template (Velocity) context: http://wiki.apache.org/solr/VelocityResponseWriter
- you can link off to javadocs from there to see more about what
each object provides in terms of getters and such.
There is a $response. From the default browse.vm template, $doc is a
single item in an iteration over $response.results
$doc is an org.apache.solr.common.SolrDocument (http://lucene.apache.org/solr/api/org/apache/solr/common/SolrDocument.html
)
So from a $doc, you can do this:
$doc.getFirstValue("name")
getFirstValue is used when it is known to be a single valued field
(experiment with the other getters on SolrDocument to see how they
work with various fields).
In the custom templates I have been using, I define a macro to make
this even easier - you can define it in VM_global_library.vm in conf/
velocity to make it global to all templates:
#macro(field $f)$!{esc.html($doc.getFirstValue($f))}#end
Now you can use #field("name") instead, making templates much
cleaner. The $!{esc.html(...)} bit is there to HTML escape the field
value, otherwise it leaves the possibility of malformed rendering or
even the possibility of a JavaScript injection vulnerability. The
explanation point is a Velocity templating feature to not render
anything if the value is null, otherwise it'll literally render "$
{....}" in the output.
Perhaps more than you were asking for, but I wanted to be thorough
since this is a feature of Solr I'd like to see get some more, ahem,
visibility.
Erik
