/**
* Extract References from a given text and insert extracted refs into the database
*
* @param String $html Text to parse
* @param Integer $source_id Id of the item where the text was added
* @param String $source_type Nature of the source
* @param Integer $source_gid Project Id of the project the source item belongs to
* @param Integer $user_id User who owns the text to parse
* @param String $source_key Keyword to use for the reference (if different from the one associated to the nature)
*
* @retrun Boolean True if no error
*/
function extractCrossRef($html, $source_id, $source_type, $source_gid, $user_id = 0, $source_key = null)
{
if ($source_key == null) {
$available_natures = $this->getAvailableNatures();
if ($source_type == self::REFERENCE_NATURE_ARTIFACT) {
$source_key = $this->getArtifactKeyword($source_id, $source_gid);
if (!$source_key) {
$source_key = $available_natures[$source_type]['keyword'];
}
} else {
$source_key = $available_natures[$source_type]['keyword'];
}
}
$matches = $this->_extractAllMatches($html);
foreach ($matches as $match) {
// Analyse match
$key = strtolower($match[1]);
if ($match[2]) {
// A target project name or ID was specified
// remove trailing colon
$target_project = substr($match[2], 0, strlen($match[2]) - 1);
// id or name?
if (is_numeric($target_project)) {
$ref_gid = $target_project;
} else {
// project name instead...
$this->_initGroupHash();
if (isset($this->groupIdByName[$target_project])) {
$ref_gid = $this->groupIdByName[$target_project];
} else {
if (isset($this->groupIdByNameLower[$target_project])) {
$ref_gid = $this->groupIdByNameLower[$target_project];
} else {
return null;
}
}
}
} else {
if ($this->tmpGroupIdForCallbackFunction) {
$ref_gid = $this->tmpGroupIdForCallbackFunction;
} else {
if (array_key_exists('group_id', $GLOBALS)) {
$ref_gid = $GLOBALS['group_id'];
// might not be set
} else {
$ref_gid = '';
}
}
}
$value = $match[3];
if ($ref_gid == "") {
$ref_gid = 100;
}
// use system references only
$num_args = substr_count($value, '/') + 1;
// Count number of arguments in detected reference
$ref = $this->_getReferenceFromKeywordAndNumArgs($key, $ref_gid, $num_args);
if ($ref) {
//Cross reference
$sqlkey = 'SELECT link, nature from reference r,reference_group rg where keyword="' . $match[1] . '" AND r.id = rg.reference_id AND rg.group_id=' . $source_gid;
$reskey = db_query($sqlkey);
if ($reskey && db_numrows($reskey) > 0) {
$key_array = db_fetch_array($reskey);
$target_type = $key_array['nature'];
$target_id = $match[3];
$target_key = $match[1];
// keyword
$target_gid = $ref_gid;
if ($user_id == 0) {
$user_id = user_getid();
}
$cross_ref = new CrossReference($source_id, $source_gid, $source_type, $source_key, $target_id, $target_gid, $target_type, $target_key, $user_id);
if (!$cross_ref->existInDb()) {
$cross_ref->createDbCrossRef();
}
}
}
}
return true;
}
public function insertCrossReference(CrossReference $cross_reference)
{
if (!$cross_reference->existInDb()) {
return $cross_reference->createDbCrossRef();
}
return true;
}