function build(Search_Expr_Interface $expr)
{
$this->accumulate = [];
$expr->walk($this);
$query = ['rescore' => ['window_size' => 50, 'query' => ['rescore_query' => ['bool' => ['should' => array_values($this->accumulate)]]]]];
return $query;
}
function build(Search_Expr_Interface $expr)
{
$query = $expr->traverse($this);
if (count($query) && isset($query['bool']) && empty($query['bool'])) {
return [];
}
$query = array("query" => $query);
return $query;
}
function build(Search_Expr_Interface $expr, Search_Type_Factory_Interface $factory)
{
$invert = false;
$string = $expr->walk(function ($node, $childNodes) use($factory, &$invert) {
if ($node instanceof Token) {
$string = $node->getValue($factory)->getValue();
if (false === strpos($string, ' ')) {
return $string;
} else {
return '"' . $string . '"';
}
} elseif ($node instanceof OrX) {
foreach ($childNodes as $node) {
if ($node[0] == '-') {
throw new Search_MySql_QueryException('Semantic impossible to express.');
}
}
return count($childNodes) == 1 ? reset($childNodes) : '(' . implode(' ', $childNodes) . ')';
} elseif ($node instanceof AndX) {
$negatives = 0;
foreach ($childNodes as $node) {
if ($node[0] == '-') {
$negatives++;
}
}
// When all the conditions are negative, the index will score 0 (bad)
if ($negatives == count($childNodes)) {
$childNodes = array_map(function ($node) {
return substr($node, 1);
}, $childNodes);
$invert = true;
return count($childNodes) == 1 ? reset($childNodes) : '(' . implode(' ', $childNodes) . ')';
}
return count($childNodes) == 1 ? reset($childNodes) : '(+' . implode(' +', $childNodes) . ')';
} elseif ($node instanceof NotX) {
return '-' . reset($childNodes);
} else {
throw new Search_MySql_QueryException('Expression not supported: ' . get_class($node));
}
});
$this->invert = $invert;
$string = str_replace('+-', '-', $string);
return $string;
}
function build(Search_Expr_Interface $expr)
{
$this->indexes = array();
$query = $expr->walk($this);
return $query;
}
function build(Search_Expr_Interface $expr)
{
$query = $expr->traverse($this);
$query = array("query" => $query);
return $query;
}
