public function execute()

in extensions/SMWAskAPI/api/SMWAsk_API.php [58:132]
56 lines of code
18 McCabe index (conditional complexity)

    public function execute() {
        global $wgUser;

        $params = $this->extractRequestParams();
        if (is_null($params[SMWAskAPI::$PARAM_QUERY]))
            $this->dieUsage('Must specify a semantic query (' . SMWAskAPI::$PARAM_QUERY . ')', 0);

        $query = $params[SMWAskAPI::$PARAM_QUERY];

        if (!is_null($params[SMWAskAPI::$PARAM_PRINTOUTS])) {
            $props = explode("|", $params[SMWAskAPI::$PARAM_PRINTOUTS]);
        } else {
            $props = array();
        }

        if( !isset($params[SMWAskAPI::$PARAM_LIMIT]) || is_null($limit = $params[SMWAskAPI::$PARAM_LIMIT]) || $limit == '' ){
            $limit = null;// null = 'infinity'
        }else if ( ($limit=intval($limit)) < 0 ){
            $this->dieUsage('Invalid ' . SMWAskAPI::$PARAM_LIMIT . '='.$limit.': if set, must be a non-negative integer. 0 value means default', 0);
        }

        if( !isset($params[SMWAskAPI::$PARAM_OFFSET]) || is_null($offset = $params[SMWAskAPI::$PARAM_OFFSET]) ){
            $offset = 0;// 0 is default value
        }else if ( ($offset=intval($offset)) < 0 ){
            $this->dieUsage('Invalid ' . SMWAskAPI::$PARAM_OFFSET . '='.$offset.': if set, must be a non-negative integer. Default value is 0', 0);
        }

        $res = $this->ask($query, $props, $limit, $offset);

        $result = array();

        $ask_errors = $res->getErrors();

        if (empty($ask_errors)) {
            $result['result'] = 'Success';
        } else {
            $result['result'] = 'Error';
            $this->getResult()->setIndexedTagName($ask_errors, 'list-item');
            $this->getResult()->addValue(array($this->ACTION_NAME), 'errors', $ask_errors);
        }

        $this->getResult()->addValue(array($this->ACTION_NAME, 'query'), SMWAskAPI::$PARAM_QUERY, $query);
        if (count($props) > 0) {
            $this->getResult()->setIndexedTagName($props, 'list-item');
            $this->getResult()->addValue(array($this->ACTION_NAME, 'query'), SMWAskAPI::$PARAM_PRINTOUTS, $props);
        }

        if( ! is_null($limit) ){
            $this->getResult()->addValue(array($this->ACTION_NAME, 'query'), SMWAskAPI::$PARAM_LIMIT, $limit);
        }
        if( $offset!=0 ){
            $this->getResult()->addValue(array($this->ACTION_NAME, 'query'), SMWAskAPI::$PARAM_OFFSET, $offset);
        }

        if ( $res->getCount() > 0 || $res->hasFurtherResults() )  {
            // We set the num of *displayed* results
            $this->getResult()->addValue(array($this->ACTION_NAME, 'results'), 'count', $res->getCount());

            // If more results can be found, say it
            if( $res->hasFurtherResults() ){
                $this->getResult()->addValue(array($this->ACTION_NAME, 'results'), 'hasMore', 'true');
            }

            $items = array();
            while (( $r = $res->getNext() ) !== false) {

                $items[] = $this->resultToItem($r);
            }

            $this->getResult()->setIndexedTagName($items, 'list-item');
            $this->getResult()->addValue(array($this->ACTION_NAME, 'results'), 'items', $items);
        }

        $this->getResult()->addValue(null, $this->ACTION_NAME, $result);
    }