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https://issues.apache.org/jira/browse/SOLR-2412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960116#comment-13960116
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J.L. Hill edited comment on SOLR-2412 at 4/4/14 9:38 PM:
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Any suggestions on parsing the output?
The hierarchical faceting seems to be working as described, but in my test
3-level hierarchy, converting the query xml to a php array, it comes out being
13-levels deep. Parsing is complicated by the text strings of facet field being
keys in the array. I have built a basic recursive function to parse the output,
but after three days of trying, I am thinking there must be a better way to my
desired result, which would be like a common html <ul> tree display. For a
failed example of what I am trying:
Any suggestions appreciated.
was (Author: hill):
Any suggestions on parsing the output?
The hierarchical faceting seems to be working as described, but in my test
3-level hierarchy, converting the query xml to a php array, it comes out being
13-levels deep. Parsing is complicated by the text strings of facet field being
keys in the array. I have been trying to build a recursive function to parse
the output, but after three days of trying, I am thinking there must be a
better way to my desired result, which would be like a common html <ul> tree
display. For a failed example of what I am trying:
function facetTree($array, $tree="") {
$notToTree = array('recursivecount', 'potentialtags', 'totaltags', 'count',
'level', 'sub');
$tree .= "<ul>";
foreach($array as $k=>$v) {
if(!in_array($k, $notToTree)) { $tree .= '<li>'.$k."</li>"; }
if(is_array($v)) {
$tree .= facetTree($v, $tree);
}
}
$tree .= "</ul>";
return $tree;
}
Any suggestions appreciated.
> Multipath hierarchical faceting
> -------------------------------
>
> Key: SOLR-2412
> URL: https://issues.apache.org/jira/browse/SOLR-2412
> Project: Solr
> Issue Type: New Feature
> Components: SearchComponents - other
> Affects Versions: 4.0
> Environment: Fast IO when huge hierarchies are used
> Reporter: Toke Eskildsen
> Labels: contrib, patch
> Attachments: SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch,
> SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch, SOLR-2412.patch
>
>
> Hierarchical faceting with slow startup, low memory overhead and fast
> response. Distinguishing features as compared to SOLR-64 and SOLR-792 are
> * Multiple paths per document
> * Query-time analysis of the facet-field; no special requirements for
> indexing besides retaining separator characters in the terms used for faceting
> * Optional custom sorting of tag values
> * Recursive counting of references to tags at all levels of the output
> This is a shell around LUCENE-2369, making it work with the Solr API. The
> underlying principle is to reference terms by their ordinals and create an
> index wide documents to tags map, augmented with a compressed representation
> of hierarchical levels.
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