/**
* Create an SRU boolean/key/value expression in the query, such as:
* AND srw.su="xslt"
*
* @param int $positoin position in query
* @param QueryTerm $term term
* @param bool $neg (optional) whether the presence of '-' in $value should indicate a negative expression
* in which case $boolean gets changed to 'NOT'
* @return string the resulting SRU expresion
*/
private function keyValue($position = 1, Search\QueryTerm $term, $neg = false)
{
// no term, no mas
if ($term->phrase == "") {
return "";
}
// internal field
if ($term->field_internal == 'undefined') {
$term->field_internal = 'kw';
// @todo figure out why this hack is necessary on combined
}
// boolean
$boolean = $term->boolean;
if ($boolean == "" && $position > 1) {
$boolean = 'AND';
}
if ($neg == true && strstr($term->phrase, "-")) {
$boolean = "NOT";
$term->phrase = str_replace("-", "", $term->phrase);
}
$together = "";
if ($term->relation == "exact") {
$term->phrase = str_replace("\"", "", $term->phrase);
$together = " srw." . $term->field_internal . " exact \" {$term->phrase} \"";
} else {
$phrase = $term->removeStopWords()->phrase;
$phrase = str_replace(':', '', $phrase);
$parts = $term->normalizedArray($phrase);
foreach ($parts as $query_part) {
if (!preg_match('/[a-zA-Z0-9]{1}/', $query_part)) {
continue;
// no searchable term, skip
}
if ($query_part == "AND" || $query_part == "OR" || $query_part == "NOT") {
$together .= " " . $query_part;
} else {
$query_part = str_replace('"', '', $query_part);
$together .= " srw." . $term->field_internal . " = \" {$query_part} \"";
}
}
}
return " {$boolean} ( {$together} ) ";
}
/**
* Create an SRU boolean/key/value expression in the query, such as:
* AND srw.su="xslt"
*
* @param QueryTerm $term
* @param bool $neg (optional) whether the presence of '-' in $value should indicate a negative expression
* in which case $boolean gets changed to 'NOT'
* @return string the resulting SRU expresion
*/
private function keyValue(Search\QueryTerm $term, $neg = false)
{
if ($term->phrase == "") {
return "";
}
if ($neg == true && strstr($term->phrase, "-")) {
$boolean = "NOT";
$term->phrase = str_replace("-", "", $term->phrase);
}
$together = "";
if ($term->relation == "exact") {
$term->phrase = str_replace("\"", "", $term->phrase);
$together = " srw." . $term->field_internal . " exact \" {$term->phrase} \"";
} else {
$phrase = $term->removeStopWords()->phrase;
foreach ($term->normalizedArray($phrase) as $query_part) {
if ($query_part == "AND" || $query_part == "OR" || $query_part == "NOT") {
$together .= " " . $query_part;
} else {
$query_part = str_replace('"', '', $query_part);
$together .= " srw." . $term->field_internal . " = \" {$query_part} \"";
}
}
}
return " " . $term->boolean . " ( {$together} ) ";
}
