search2.php.svn-base

来自「PHP 知识管理系统（基于树结构的知识管理系统）, 英文原版的PHP源码。」· SVN-BASE 代码 · 共 706 行 · 第 1/2 页

<?php
/**
 * $Id$
 *
 * KnowledgeTree Community Edition
 * Document Management Made Simple
 * Copyright (C) 2008 KnowledgeTree Inc.
 * Portions copyright The Jam Warehouse Software (Pty) Limited
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
 * California 94120-7775, or email [e-mail].
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * KnowledgeTree" logo and retain the original copyright notice. If the display of the
 * logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
 * must display the words "Powered by KnowledgeTree" and retain the original
 * copyright notice.
 * Contributor( s): ______________________________________
 */

// TODO: do we have to serialise/unserialise the results. this is not optimal!!!

session_start();
require_once("config/dmsDefaults.php");
require_once(KT_DIR . '/search2/indexing/indexerCore.inc.php');

require_once(KT_LIB_DIR . "/unitmanagement/Unit.inc");

require_once(KT_LIB_DIR . "/templating/templating.inc.php");
require_once(KT_LIB_DIR . "/dispatcher.inc.php");
require_once(KT_LIB_DIR . "/widgets/forms.inc.php");
require_once(KT_LIB_DIR . "/actions/bulkaction.php");

require_once(KT_LIB_DIR . '/browse/DocumentCollection.inc.php');
require_once(KT_LIB_DIR . '/documentmanagement/Document.inc');
require_once(KT_LIB_DIR . '/browse/PartialQuery.inc.php');

function search2queryCompare($a, $b)
{
	global $search2queryColumn, $search2queryOrder;


	if ($a->$search2queryColumn == $b->$search2queryColumn)
	{
		return 0;
	}

	$result = ($a->$search2queryColumn < $b->$search2queryColumn)?-1:1;

	if ($search2queryOrder == 'asc')
		return $result;
	else
		return - $result;
}


/**
 * Assists with old browse search results
 *
 * @param unknown_type $sSortColumn
 * @param unknown_type $sSortOrder
 */

function search2QuerySort($sSortColumn, $sSortOrder)
{
	$defaultSortColumn = $_SESSION['search2_sort_column'];
	$defaultSortOrder = $_SESSION['search2_sort_order'];

	if (($defaultSortColumn == $sSortColumn) && ($defaultSortOrder == $sSortOrder))
	{
		return;
	}

	global $search2queryColumn, $search2queryOrder;

	$search2queryOrder = strtolower($sSortOrder);

	switch(strtolower($sSortColumn))
	{
		case 'ktcore.columns.title':
			$search2queryColumn = 'Title';
			break;
		case 'ktcore.columns.workflow_state':
			$search2queryColumn = 'WorkflowAndState';
			break;
		case 'ktcore.columns.checkedout_by':
			$search2queryColumn = 'CheckedOutBy';
			break;
		case 'ktcore.columns.creationdate':
			$search2queryColumn = 'DateCreated';
			break;
		case 'ktcore.columns.modificationdate':
			$search2queryColumn = 'DateModified';
			break;
		case 'ktcore.columns.creator':
			$search2queryColumn = 'CreatedBy';
			break;
		case 'ktcore.columns.docid':
			$search2queryColumn = 'DocumentID';
			break;
		case 'ktcore.columns.document_type':
			$search2queryColumn = 'DocumentType';
			break;
		default:
			return;
	}

	$results = unserialize($_SESSION['search2_results']);

	usort($results, 'search2queryCompare');

	$_SESSION['search2_results'] = serialize($results);

}

/**
 * Search2Query is used to provide allow the old browse search to work
 *
 */
class Search2Query extends PartialQuery
{
    function _count($type)
    {
        $count = 0;
        $results = unserialize($_SESSION['search2_results']);

        switch ($type)
        {
            case 'Document':
                return count($results['docs']) + count($results['shortdocs']);
            case 'Folder':
                return count($results['folders']) + count($results['shortfolders']);
            default:
                return 0;
        }
    }

    function getFolderCount()
    {
        return $this->_count('Folder');
    }
    function getDocumentCount()
    {
        return $this->_count('Document');
    }

    function getItems($type, $iStart, $iSize, $sSortColumn, $sSortOrder)
    {
        // TODO: quick hack. do this more optimally!!!!
        $results = unserialize($_SESSION['search2_results']);

        switch ($type)
        {
            case 'Document':
                $type = 'docs';
                break;
            case 'Folder':
                $type = 'folders';
                break;
        }

        $resultArray = $results[$type];
        foreach($results['short' . $type] as $rec)
        {
            $resultArray[] = $rec;
        }

        $resultArray = array_slice($resultArray, $iStart, $iSize);
        $results = array();
        foreach($resultArray as $rec)
        {
            $results[] = array('id'=>$rec->Id);
        }

        return $results;
    }

    function getFolders($iBatchSize, $iBatchStart, $sSortColumn, $sSortOrder, $sJoinClause = null, $aJoinParams = null)
  	{
  	    return $this->getItems('Folder', $iBatchStart, $iBatchSize, $sSortColumn, $sSortOrder);
  	}

    function getDocuments($iBatchSize, $iBatchStart, $sSortColumn, $sSortOrder, $sJoinClause = null, $aJoinParams = null)
    {
  	    return $this->getItems('Document', $iBatchStart, $iBatchSize, $sSortColumn, $sSortOrder);
    }
}


class SearchDispatcher extends KTStandardDispatcher {

	private $curUserId;
	private $sysAdmin;
	private $savedSearchId;

	const RESULTS_PER_PAGE = 25;
	const MAX_PAGE_MOVEMENT = 10;

	public function __construct()
	{
		parent::KTStandardDispatcher();

		$this->curUserId = $_SESSION['userID'];

		$this->sysAdmin=Permission::userIsSystemAdministrator();

		if (array_key_exists('fSavedSearchId',$_GET))
		{
			$this->savedSearchId = sanitizeForSQL($_GET['fSavedSearchId']);
		}
	}

    function do_main()
    {
    	redirect(KTBrowseUtil::getBrowseBaseUrl());
    }

    /**
     * This proceses any given search expression.
     * On success, it redirects to the searchResults page.
     *
     * @param string $query
     */
    private function processQuery($query)
    {
    	try
    	{
    		$expr = parseExpression($query);

    		$results = $expr->evaluate();
    		$results = resolveSearchShortcuts($results);

    		usort($result['docs'], 'rank_compare');

    		$_SESSION['search2_results'] = serialize($results);
    		$_SESSION['search2_query'] = $query;
    		$_SESSION['search2_sort'] = 'rank';

    		$this->redirectTo('searchResults');
    	}
    	catch(Exception $e)
    	{
    		$this->errorRedirectTo('guiBuilder', _kt('Could not process query.') . $e->getMessage());
    	}
    }

    function do_refreshLuceneStats()
    {
    	$indexer = Indexer::get();
    	$indexer->updateIndexStats();

    	redirect(KTUtil::kt_url().'/dashboard.php');
    }

    function do_refreshDashboardStatus()
    {
    	session_unregister('ExternalResourceStatus');
    	session_unregister('IndexingStatus');
    	redirect(KTUtil::kt_url().'/dashboard.php');
    }

    function do_refresh(){
        // Get query from session
        $query = $_SESSION['search2_query'];

        $this->processQuery($query);
        $this->redirectTo('searchResults');
    }

    /**
     * Processes a query sent by HTTP POST in searchQuery.
     *
     */
    function do_process()
    {
    	if (empty($_REQUEST['txtQuery']))
    	{
    		$this->errorRedirectTo('searchResults', _kt('Please reattempt the query. The query is missing.'));
    	}
    	$query = $_REQUEST['txtQuery'];

    	// Strip out returns - they cause a js error [unterminated string literal]
    	$query = str_replace(array("\r\n", "\r", "\n"), array(' ', ' ', ' '), $query);

    	$_SESSION['search2_quick'] = 0;
    	$_SESSION['search2_general'] = 0;
    	if (isset($_REQUEST['cbQuickQuery']) && $_REQUEST['cbQuickQuery'] +0 == 1)
    	{
    		$_SESSION['search2_quick'] = 1;
    		if (stripos($query, 'generaltext') !== false || stripos($query, 'metadata') !== false)
    		{
    			preg_match('/["][^"]*["]/', $query, $out);
    			$_SESSION['search2_quickQuery'] = substr($out[0],1,-1);
    		}
    	}
    	else
    	{
			$_SESSION['search2_quickQuery'] = '';
    	}
    	if (isset($_REQUEST['cbQuickGeneral']) && $_REQUEST['cbQuickGeneral'] +0 == 1)
    	{
    		$_SESSION['search2_general'] = 1;
    	}

		session_unregister('search2_savedid');

    	$this->processQuery($query);
    }

    /**
     * Returns the saved query is resolved from HTTP GET fSavedSearchId field.
     *
     * @return mixed False if error, else string.
     */
    private function getSavedExpression()
    {
    	if (is_null($this->savedSearchId))
		{
			$this->errorRedirectToParent(_kt('The saved search id was not passed correctly.'));
		}
		$_SESSION['search2_savedid'] = $this->savedSearchId;

		$sql = "SELECT name, expression FROM search_saved WHERE type='S' AND id=$this->savedSearchId";
		if (!$this->sysAdmin)
		{
			$sql .= "  and ( user_id=$this->curUserId OR shared=1 ) ";
		}

		$query = DBUtil::getOneResult($sql);
		if (PEAR::isError($query))
		{
			$this->errorRedirectToParent(_kt('The saved search could not be resolved.'));
		}

		$_SESSION['search2_savedname'] = $query['name'];
		return array($query['name'],$query['expression']);