ktdocumentlinks.php.svn-base

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<?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): ______________________________________
 *
 */
require_once(KT_LIB_DIR . "/actions/documentviewlet.inc.php");
require_once(KT_LIB_DIR . '/widgets/fieldWidgets.php');
require_once(KT_LIB_DIR . '/documentmanagement/DocumentLink.inc');
require_once(KT_LIB_DIR . '/documentmanagement/LinkType.inc');

require_once(KT_LIB_DIR . "/browse/DocumentCollection.inc.php");
require_once(KT_LIB_DIR . "/browse/BrowseColumns.inc.php");
require_once(KT_LIB_DIR . "/browse/PartialQuery.inc.php");
require_once(KT_LIB_DIR . "/browse/browseutil.inc.php");

require_once(KT_LIB_DIR . "/browse/columnregistry.inc.php");


class KTDocumentLinks extends KTPlugin {
    var $sNamespace = "ktstandard.documentlinks.plugin";

    function KTDocumentLinks($sFilename = null) {
        $res = parent::KTPlugin($sFilename);
        $this->sFriendlyName = _kt('Inter-document linking');
        return $res;
    }

    function setup() {
        $this->registerAction('documentaction', 'KTDocumentLinkAction', 'ktcore.actions.document.link');
        $this->registerAction('documentviewlet', 'KTDocumentLinkViewlet', 'ktcore.viewlets.document.link');
        $this->registerColumn(_kt('Link Title'), 'ktdocumentlinks.columns.title', 'KTDocumentLinkTitle',
                              dirname(__FILE__) . '/KTDocumentLinksColumns.php');
        $this->registerAdminPage("linkmanagement", 'KTDocLinkAdminDispatcher', 'documents',
            _kt('Link Type Management'),
            _kt('Manage the different ways documents can be associated with one another.'),
            __FILE__, null);
    }
}



class KTDocumentLinkViewlet extends KTDocumentViewlet {
    var $sName = 'ktcore.viewlets.document.link';

    function display_viewlet() {
        $oKTTemplating =& KTTemplating::getSingleton();
        $oTemplate =& $oKTTemplating->loadTemplate("ktstandard/links/links_viewlet");
        if (is_null($oTemplate)) { return ''; }

        $iDocId = $this->oDocument->getId();
        $temp_links_from = DocumentLink::getLinksFromDocument($iDocId);
        $temp_links_to = DocumentLink::getLinksToDocument($iDocId);
        $temp_links_external = DocumentLink::getExternalLinks($iDocId);

        $links_to = array();
        $links_from = array();
        $links_external = array();

        if(!empty($temp_links_from)){
            foreach ($temp_links_from as $link) {
                $oDoc = $link->getChildDocument();
                if (PEAR::isError($oDoc)) {
                    continue;
                }

                if (KTPermissionUtil::userHasPermissionOnItem($this->oUser, 'ktcore.permissions.read', $oDoc)) {
                    $type = $link->getLinkType();
                    $aInfo = array(
                        'url' => KTBrowseUtil::getUrlForDocument($oDoc),
                        'name' => $oDoc->getName(),
                        'type' => $type->getName(),
                        'description' => $type->getDescription(),
                    );

                    $links_from[] = $aInfo;
                }
            }
        }

        if(!empty($temp_links_to)){
            foreach ($temp_links_to as $link) {
                $oDoc = $link->getParentDocument();
                if (PEAR::isError($oDoc)) {
                    continue;
                }

                if (KTPermissionUtil::userHasPermissionOnItem($this->oUser, 'ktcore.permissions.read', $oDoc)) {
                    $type = $link->getLinkType();
                    $aInfo = array(
                        'url' => KTBrowseUtil::getUrlForDocument($oDoc),
                        'name' => $oDoc->getName(),
                        'type' => $type->getName(),
                        'description' => $type->getDescription(),
                    );

                    $links_to[] = $aInfo;
                }
            }
        }

        if(!empty($temp_links_external)){
            foreach ($temp_links_external as $link) {
                $type = $link->getLinkType();

                $aInfo = array(
                        'url' => $link->getTargetUrl(),
                        'name' => $link->getTargetName(),
                        'type' => $type->getName(),
                        'description' => $type->getDescription(),
                );

                $links_external[] = $aInfo;
            }
        }

        if (empty($links_from) && empty($links_to) && empty($links_external)) {
            return '';
        }

        $oTemplate->setData(array(
            'context' => $this,
            'links_from' => $links_from,
            'links_to' => $links_to,
            'links_external' => $links_external,
        ));
        return $oTemplate->render();
    }

}

class KTDocumentLinkAction extends KTDocumentAction {
    var $sName = 'ktcore.actions.document.link';

    function getDisplayName() {
        return _kt('Links');
    }

    // display existing links
    function do_main() {
        $oTemplate =& $this->oValidator->validateTemplate('ktstandard/action/document_links');
        $this->oPage->setBreadcrumbDetails(_kt("Links"));
        $this->oPage->setTitle(_kt("Links"));

        $iDocId = $_REQUEST['fDocumentId'];
        $oDocument = Document::get($iDocId);

        $oReadPermission =& KTPermission::getByName('ktcore.permissions.read');
        $oWritePermission =& KTPermission::getByName('ktcore.permissions.write');

        $aTemplateData = array(
              'context' => $this,
              'iDocId' => $iDocId,
              'links_external' => DocumentLink::getExternalLinks($iDocId),
              'links_from' => DocumentLink::getLinksFromDocument($iDocId),
              'links_to' => DocumentLink::getLinksToDocument($iDocId),
              'read_permission' => KTPermissionUtil::userHasPermissionOnItem($this->oUser, $oReadPermission, $this->oDocument),
              'write_permission' => KTPermissionUtil::userHasPermissionOnItem($this->oUser, $oWritePermission, $this->oDocument),
        );

        return $oTemplate->render($aTemplateData);
    }

    // select a target for the link
    function do_new() {
        $this->oPage->setBreadcrumbDetails(_kt("New Link"));
        $this->oPage->setTitle(_kt("New Link"));

        $oPermission =& KTPermission::getByName('ktcore.permissions.write');
        if (PEAR::isError($oPermission) ||
            !KTPermissionUtil::userHasPermissionOnItem($this->oUser, $oPermission, $this->oDocument)) {
            $this->errorRedirectToMain(_kt('You do not have sufficient permissions to add a document link'), sprintf("fDocumentId=%d", $this->oDocument->getId()));
            exit(0);
        }

        $oParentDocument =& $this->oDocument;

        if (PEAR::isError($oParentDocument)) {
            $this->errorRedirectToMain(_kt('Invalid parent document selected.'));
            exit(0);
        }

        $oFolder = Folder::get(KTUtil::arrayGet($_REQUEST, 'fFolderId', $oParentDocument->getFolderID()));
        if (PEAR::isError($oFolder) || ($oFolder == false)) {
            $this->errorRedirectToMain(_kt('Invalid folder selected.'));
            exit(0);
        }
        $iFolderId = $oFolder->getId();

        // Setup the collection for move display.
        $collection = new AdvancedCollection();
        $aBaseParams = array('fDocumentId'=>$oParentDocument->getId());

        $oCR =& KTColumnRegistry::getSingleton();
        $col = $oCR->getColumn('ktcore.columns.selection');
        $aColOptions = array();
        $aColOptions['qs_params'] = kt_array_merge($aBaseParams, array('fFolderId'=>$oFolder->getId()));
        $aColOptions['show_folders'] = false;
        $aColOptions['show_documents'] = true;
        $aColOptions['rangename'] = 'linkselection[]';
        $col->setOptions($aColOptions);
        $collection->addColumn($col);

        $col = $oCR->getColumn('ktdocumentlinks.columns.title');
        $col->setOptions(array('qs_params'=>kt_array_merge($aBaseParams, array('action' => 'new', 'fFolderId'=>$oFolder->getId()))));
        $collection->addColumn($col);

        $qObj = new BrowseQuery($iFolderId);
        $collection->setQueryObject($qObj);

        $aOptions = $collection->getEnvironOptions();
        //$aOptions['is_browse'] = true;
        $aResultUrl = $aBaseParams;
        $aResultUrl['fFolderId'] = $oFolder->getId();
        $aResultUrl['action'] = 'new';
        $aOptions['result_url'] = KTUtil::addQueryString($_SERVER['PHP_SELF'], $aResultUrl);
        $collection->setOptions($aOptions);

        $aURLParams = $aBaseParams;
        $aURLParams['action'] = 'new';
        $aBreadcrumbs = KTUtil::generate_breadcrumbs($oFolder, $iFolderId, $aURLParams);

        $aTemplateData = array(
              'context' => $this,
              'folder' => $oFolder,
              'parent' => $oParentDocument,
              'breadcrumbs' => $aBreadcrumbs,
              'collection' => $collection,
              'link_types' => LinkType::getList("id > 0"),
        );

        $oTemplate =& $this->oValidator->validateTemplate('ktstandard/action/link');
        return $oTemplate->render($aTemplateData);
    }

    function do_external() {
        $this->oPage->setBreadcrumbDetails(_kt("New External Link"));
        $this->oPage->setTitle(_kt("New External Link"));

        $oPermission =& KTPermission::getByName('ktcore.permissions.write');
        if (PEAR::isError($oPermission) ||
            !KTPermissionUtil::userHasPermissionOnItem($this->oUser, $oPermission, $this->oDocument)) {
            $this->errorRedirectToMain(_kt('You do not have sufficient permissions to add a document link'), sprintf("fDocumentId=%d", $this->oDocument->getId()));
            exit(0);
        }

        $oParentDocument =& $this->oDocument;
        $iParentId = $oParentDocument->getId();

        $aTemplateData = array(
              'context' => $this,
              'iDocId' => $iParentId,
              'link_types' => LinkType::getList("id > 0"),
        );

        $oTemplate =& $this->oValidator->validateTemplate('ktstandard/action/link_external');
        return $oTemplate->render($aTemplateData);
    }

    // select a type for the link
    function do_type_select() {

        //Checking to see if the document is being linked to itself and returning an error if it is.
        $iTempParentDocId = $_REQUEST['fDocumentId'];
        $aTempDocuments = $_REQUEST['linkselection'];
        if(!empty($aTempDocuments)){
            foreach ($aTempDocuments as $iTempDocId)