/**
* Return record coverage data from the NeatlineFeatures plugin.
*
* @param $record NeatlineRecord The record to get the feature for.
* @return string|null
*/
function nl_getNeatlineFeaturesWkt($record)
{
// Halt if Features is not present.
if (!plugin_is_active('NeatlineFeatures')) {
return;
}
$db = get_db();
// Get raw coverage.
$result = $db->fetchOne("SELECT geo FROM `{$db->prefix}neatline_features`\n WHERE is_map=1 AND item_id=?;", $record->item_id);
if ($result) {
// If KML, convert to WKT.
if (strpos($result, '<kml') !== false) {
$result = nl_extractWkt(trim($result));
} else {
$result = 'GEOMETRYCOLLECTION(' . implode(',', explode('|', $result)) . ')';
}
}
return $result;
}
/**
* Import coverage from Neatline Features, if it's installed, and set the
* `is_coverage` flag.
*/
public function compileCoverage()
{
// Get parent item.
$item = $this->getItem();
// Only try to import coverage values if (a) a parent item is defined
// and (b) the local coverage value is currently empty (this prevents
// modified coverages from being overwritten on save).
if ($item && !$this->coverage) {
if (plugin_is_active('NeatlineFeatures')) {
// Try to import a value from Neatline Features.
$wkt = nl_getNeatlineFeaturesWkt($this);
if (is_string($wkt)) {
$this->coverage = $wkt;
}
}
if (!$this->coverage) {
// If a coverage wasn't gethered from Features (either because
// it isn't installed, or there isn't a Features-managed value
// for the item), just look for a vanilla DC "Coverage" value.
try {
$coverage = metadata($item, array('Dublin Core', 'Coverage'));
$this->coverage = nl_extractWkt($coverage);
} catch (Exception $e) {
}
}
}
// Track whether the record has a coverage.
$this->is_coverage = $this->coverage ? 1 : 0;
}