class.ilContainerReferenceGUI.php

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<?php
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
    |                                                                             |
    | This program is free software; you can redistribute it and/or               |
    | modify it under the terms of the GNU General Public License                 |
    | as published by the Free Software Foundation; either version 2              |
    | of the License, or (at your option) any later version.                      |
    |                                                                             |
    | 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, write to the Free Software                 |
    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/

include_once('./Services/Object/classes/class.ilObjectGUI.php');

class ilContainerReferenceGUI extends ilObjectGUI
{
    protected $tabs;

    protected $locator;

    protected $user;

    protected $access;

    protected $error;

    protected $settings;

    const MAX_SELECTION_ENTRIES = 50;
    
    const MODE_CREATE = 1;
    const MODE_EDIT = 2;
    
    protected $existing_objects = array();

    protected $target_type;
    protected $reference_type;
    protected $form;

    public function __construct($a_data, $a_id, $a_call_by_reference = true, $a_prepare_output = true)
    {
        global $DIC;

        $this->lng = $DIC->language();
        $this->ctrl = $DIC->ctrl();
        $this->tabs = $DIC->tabs();
        $this->locator = $DIC["ilLocator"];
        $this->user = $DIC->user();
        $this->access = $DIC->access();
        $this->error = $DIC["ilErr"];
        $this->settings = $DIC->settings();
        $lng = $DIC->language();
        parent::__construct($a_data, $a_id, $a_call_by_reference, $a_prepare_output);

        $lng->loadLanguageModule('objref');
    }

    public function executeCommand()
    {
        $ilCtrl = $this->ctrl;
        $ilTabs = $this->tabs;


        if (isset($_GET['creation_mode']) && $_GET['creation_mode'] == self::MODE_CREATE) {
            $this->setCreationMode(true);
        }

        $next_class = $ilCtrl->getNextClass($this);
        $cmd = $ilCtrl->getCmd();

        $this->prepareOutput();

        switch ($next_class) {
            case "ilpropertyformgui":
                $form = $this->initForm($this->creation_mode ? self::MODE_CREATE : self::MODE_EDIT);
                $this->ctrl->forwardCommand($form);
                break;

            case 'ilpermissiongui':
                $ilTabs->setTabActive('perm_settings');
                include_once("Services/AccessControl/classes/class.ilPermissionGUI.php");
                $ilCtrl->forwardCommand(new ilPermissionGUI($this));
                break;

            default:
                if (!$cmd || $cmd == 'view') {
                    $cmd = "edit";
                }
                $cmd .= "Object";
                $this->$cmd();
                break;
        }
        return true;
    }
    
    protected function addLocatorItems()
    {
        $ilLocator = $this->locator;
        
        if ($this->object instanceof ilObject) {
            $ilLocator->addItem($this->object->getPresentationTitle(), $this->ctrl->getLinkTarget($this));
        }
    }
    
    public function redirectObject()
    {
        $ilCtrl = $this->ctrl;
        
        $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->object->getTargetRefId());
        $ilCtrl->redirectByClass("ilrepositorygui", "");
    }
    
    public function createObject()
    {
        $ilUser = $this->user;
        $ilAccess = $this->access;
        $ilErr = $this->error;
        $ilSetting = $this->settings;
        
        $new_type = $_REQUEST["new_type"];
        if (!$ilAccess->checkAccess("create_" . $this->getReferenceType(), '', $_GET["ref_id"], $new_type)) {
            $ilErr->raiseError($this->lng->txt("permission_denied"), $ilErr->MESSAGE);
        }
        $form = $this->initForm(self::MODE_CREATE);
        $this->tpl->setContent($form->getHTML());
    }
    
    
    public function saveObject()
    {
        $ilAccess = $this->access;
        
        if (!(int) $_REQUEST['target_id']) {
            ilUtil::sendFailure($this->lng->txt('select_one'));
            $this->createObject();
            return false;
        }
        if (!$ilAccess->checkAccess('visible', '', (int) $_REQUEST['target_id'])) {
            ilUtil::sendFailure($this->lng->txt('permission_denied'));
            $this->createObject();
            return false;
        }
        
        parent::saveObject();
    }
    
    protected function initCreateForm($a_new_type)
    {
        return $this->initForm(self::MODE_CREATE);
    }

    protected function afterSave(ilObject $a_new_object)
    {
        $target_obj_id = ilObject::_lookupObjId((int) $this->form->getInput('target_id'));
        $a_new_object->setTargetId($target_obj_id);

        $a_new_object->setTitleType($this->form->getInput('title_type'));
        if ($this->form->getInput('title_type') == ilContainerReference::TITLE_TYPE_CUSTOM) {
            $a_new_object->setTitle($this->form->getInput('title'));
        }

        $a_new_object->update();
        
        ilUtil::sendSuccess($this->lng->txt("object_added"), true);
        $this->ctrl->setParameter($this, 'ref_id', $a_new_object->getRefId());
        $this->ctrl->setParameter($this, 'creation_mode', 0);
        $this->ctrl->redirect($this, 'firstEdit');
    }
    
    protected function firstEditObject()
    {
        $this->editObject();
    }

    public function editReferenceObject()
    {
        $this->editObject();
    }
    
    public function editObject(ilPropertyFormGUI $form = null)
    {
        $ilTabs = $this->tabs;

        $ilTabs->setTabActive('settings');
        
        if (!$form instanceof ilPropertyFormGUI) {
            $form = $this->initForm();
        }
        $GLOBALS['tpl']->setContent($form->getHTML());
    }
    
    protected function initForm($a_mode = self::MODE_EDIT)
    {
        include_once './Services/Form/classes/class.ilPropertyFormGUI.php';
        include_once './Services/ContainerReference/classes/class.ilContainerReference.php';
        $form = new ilPropertyFormGUI();

        if ($a_mode == self::MODE_CREATE) {
            $form->setTitle($this->lng->txt($this->getReferenceType() . '_new'));

            $this->ctrl->setParameter($this, 'creation_mode', $a_mode);
            $this->ctrl->setParameter($this, 'new_type', $_REQUEST['new_type']);
        } else {
            $form->setTitle($this->lng->txt('edit'));
        }

        $form->setFormAction($this->ctrl->getFormAction($this));
        if ($a_mode == self::MODE_CREATE) {
            $form->addCommandButton('save', $this->lng->txt('create'));
            $form->addCommandButton('cancel', $this->lng->txt('cancel'));
        } else {
            $form->addCommandButton('update', $this->lng->txt('save'));
        }

        // title type
        $ttype = new ilRadioGroupInputGUI($this->lng->txt('title'), 'title_type');
        if ($a_mode == self::MODE_EDIT) {
            $ttype->setValue($this->object->getTitleType());
        } else {
            $ttype->setValue(ilContainerReference::TITLE_TYPE_REUSE);
        }

        $reuse = new ilRadioOption($this->lng->txt('objref_reuse_title'));
        $reuse->setValue(ilContainerReference::TITLE_TYPE_REUSE);
        $ttype->addOption($reuse);
        
        $custom = new ilRadioOption($this->lng->txt('objref_custom_title'));
        $custom->setValue(ilContainerReference::TITLE_TYPE_CUSTOM);
        
        // title
        $title = new ilTextInputGUI($this->lng->txt('title'), 'title');
        $title->setSize(min(40, ilObject::TITLE_LENGTH));
        $title->setMaxLength(ilObject::TITLE_LENGTH);
        $title->setRequired(true);

        if ($a_mode == self::MODE_EDIT) {
            $title->setValue($this->object->getTitle());
        }

        $custom->addSubItem($title);
        $ttype->addOption($custom);
        $form->addItem($ttype);

        include_once("./Services/Form/classes/class.ilRepositorySelector2InputGUI.php");
        $repo = new ilRepositorySelector2InputGUI($this->lng->txt("objref_edit_ref"), "target_id");
        //$repo->setParent($this);
        $repo->setRequired(true);
        $repo->getExplorerGUI()->setSelectableTypes(array($this->getTargetType()));
        $repo->getExplorerGUI()->setTypeWhiteList(
            array_merge(
                array($this->getTargetType()),
                array("root", "cat", "grp", "fold", "crs")
            )
        );
        $repo->setInfo($this->lng->txt($this->getReferenceType() . '_edit_info'));

        if ($a_mode == self::MODE_EDIT) {
            $repo->getExplorerGUI()->setPathOpen($this->object->getTargetRefId());
            $repo->setValue($this->object->getTargetRefId());
        }

        $form->addItem($repo);
        $this->form = $form;
        return $form;
    }
    
    public function updateObject()
    {
        $ilAccess = $this->access;
        $form = $this->initForm();
        if ($form->checkInput()) {
            $this->object->setTitleType($form->getInput('title_type'));
            if ($form->getInput('title_type') == ilContainerReference::TITLE_TYPE_CUSTOM) {
                $this->object->setTitle($form->getInput('title'));
            }

            if (!$ilAccess->checkAccess('visible', '', (int) $form->getInput('target_id')) ||
                ilObject::_lookupType($form->getInput('target_id'), true) != $this->target_type) {
                ilUtil::sendFailure($this->lng->txt('permission_denied'));
                $this->editObject();
                return false;
            }
            $this->checkPermission('write');

            $target_obj_id = ilObject::_lookupObjId((int) $form->getInput('target_id'));
            $this->object->setTargetId($target_obj_id);


            $this->object->update();
            ilUtil::sendSuccess($this->lng->txt('settings_saved'), true);
            $this->ctrl->redirect($this, 'edit');
        }
        $form->setValuesByPost();
        ilUtil::sendFailure($this->lng->txt('err_check_input'));
        $this->editObject($form);
        return true;
    }

    public function getTargetType()
    {
        return $this->target_type;
    }
    
    public function getReferenceType()
    {
        return $this->reference_type;
    }

    public function getId()
    {
        return $this->obj_id;
    }
}