if ($mset->get_docid(0) != 2) {
print "MatchDecider mset has wrong docid in\n";
exit(1);
}
}
class testexpanddecider extends XapianExpandDecider
{
function apply($term)
{
return $term[0] !== 'a';
}
}
$enquire = new XapianEnquire($db);
$rset = new XapianRSet();
$rset->add_document(1);
$eset = $enquire->get_eset(10, $rset, XapianEnquire::USE_EXACT_TERMFREQ, 1.0, new testexpanddecider());
foreach ($eset->begin() as $t) {
if ($t[0] === 'a') {
print "XapianExpandDecider was not used\n";
exit(1);
}
}
# Check min_wt argument to get_eset() works (new in 1.2.5).
$eset = $enquire->get_eset(100, $rset, XapianEnquire::USE_EXACT_TERMFREQ);
$min_wt = 0;
foreach ($eset->begin() as $i => $dummy) {
$min_wt = $i->get_weight();
}
if ($min_wt >= 1.9) {
print "ESet min weight too high for testcase\n";
exit(1);
$enquire->set_query($query);
$matches = $enquire->get_mset(0, 10, $rset);
// Display the results.
print "{$matches->get_matches_estimated()} results found:\n";
foreach ($matches->begin() as $i => $docid) {
$n = $i->get_rank() + 1;
$data = $i->get_document()->get_data();
print "{$n}: {$i->get_percent()}% docid={$docid} [{$data}]\n\n";
}
// If no relevant docids were given, invent an RSet containing the top 5
// matches (or all the matches if there are less than 5).
if ($rset->is_empty()) {
$c = 5;
foreach ($matches->begin() as $docid) {
$rset->add_document($docid);
if (--$c) {
break;
}
}
}
// Generate an ESet containing terms that the user might want to add to
// the query.
$eset = $enquire->get_eset(10, $rset);
// List the terms.
foreach ($eset->begin() as $t => $term) {
print "{$term}: weight = {$t->get_weight()}\n";
}
} catch (Exception $e) {
print $e->getMessage() . "\n";
exit(1);
}
/**
* Return a list of posts that are similar to the current post
*/
public function get_similar_posts($post, $max_recommended = 5)
{
$guid = $this->get_uid($post);
$posting = $this->_database->postlist_begin($guid);
$enquire = new XapianEnquire($this->_database);
$rset = new XapianRset();
$rset->add_document($posting->get_docid());
$eset = $enquire->get_eset(20, $rset);
$i = $eset->begin();
$terms = array();
while (!$i->equals($eset->end())) {
$terms[] = $i->get_term();
$i->next();
}
$query = new XapianQuery(XapianQuery::OP_OR, $terms);
$enquire->set_query($query);
$matches = $enquire->get_mset(0, $max_recommended + 1);
$ids = array();
$i = $matches->begin();
while (!$i->equals($matches->end())) {
$n = $i->get_rank() + 1;
if ($i->get_document()->get_value(self::XAPIAN_FIELD_ID) != $post->id) {
$ids[] = $i->get_document()->get_value(self::XAPIAN_FIELD_ID);
}
$i->next();
}
return $ids;
}
