/*
* File : $Source: /alkacon/cvs/alkacon/com.alkacon.opencms.v8.formgenerator/src/com/alkacon/opencms/v8/formgenerator/dialog/CmsFormDeleteSingleEntryAction.java,v $
* Date : $Date: 2010/09/17 12:49:30 $
* Version: $Revision: 1.2 $
*
* This file is part of the Alkacon OpenCms Add-On Module Package
*
* Copyright (c) 2010 Alkacon Software GmbH (http://www.alkacon.com)
*
* The Alkacon OpenCms Add-On Module Package 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 3 of the License, or
* (at your option) any later version.
*
* The Alkacon OpenCms Add-On Module Package 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 the Alkacon OpenCms Add-On Module Package.
* If not, see http://www.gnu.org/licenses/.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com.
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org.
*/
package com.alkacon.opencms.v8.formgenerator.dialog;
import com.alkacon.opencms.v8.formgenerator.database.CmsFormDataAccess;
import com.alkacon.opencms.v8.formgenerator.database.CmsFormDataBean;
import com.alkacon.opencms.v8.formgenerator.database.CmsFormDatabaseFilter;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.i18n.CmsMessageContainer;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsPermissionSet;
import org.opencms.security.CmsRole;
import org.opencms.workplace.list.A_CmsListDialog;
import org.opencms.workplace.list.CmsListDirectAction;
import java.util.List;
/**
* List action to delete a single form entry.<p>
*
* This special handler is needed because only users with the role {@link CmsRole#DATABASE_MANAGER} or
* with write permission on the form VFS file should be able to perform this action.<p>
*
* @author Andreas Zahner
*/
public class CmsFormDeleteSingleEntryAction extends CmsListDirectAction {
/** Determines if the current entry can be deleted by the current user. */
private Boolean m_editable;
/**
* Default constructor.<p>
*
* @param id unique id
*/
public CmsFormDeleteSingleEntryAction(String id) {
super(id);
}
/**
* Returns if the form entry can be deleted depending on the current users permissions and roles.<p>
*
* @param wp the current workplace list dialog instance
*
* @return <code>true</code> if the entry can be deleted by the current user, otherwise <code>false</code>
*/
protected static boolean checkEditable(A_CmsListDialog wp) {
try {
CmsFormDataListDialog dialog = (CmsFormDataListDialog)wp;
List<CmsFormDataBean> forms = CmsFormDataAccess.getInstance().readForms(
CmsFormDatabaseFilter.HEADERS.filterFormId(dialog.getParamFormid()));
CmsFormDataBean data = forms.get(0);
CmsResource formFile = wp.getCms().readResource(data.getResourceId());
return OpenCms.getRoleManager().hasRole(wp.getCms(), CmsRole.DATABASE_MANAGER)
|| wp.getCms().hasPermissions(formFile, CmsPermissionSet.ACCESS_WRITE, false, CmsResourceFilter.ALL);
} catch (Exception e) {
// error reading form resource, only check roles of current user
return OpenCms.getRoleManager().hasRole(wp.getCms(), CmsRole.DATABASE_MANAGER);
}
}
/**
* @see org.opencms.workplace.tools.A_CmsHtmlIconButton#getHelpText()
*/
@Override
public CmsMessageContainer getHelpText() {
if (!isEditable()) {
return (Messages.get().container(Messages.GUI_ACTION_FIELDS_DELETE_IN_HELP_0));
}
return super.getHelpText();
}
/**
* @see org.opencms.workplace.tools.A_CmsHtmlIconButton#getIconPath()
*/
@Override
public String getIconPath() {
if (!isEditable()) {
return "tools/database/buttons/v8-webform_delete_disabled.png";
}
return super.getIconPath();
}
/**
* @see org.opencms.workplace.tools.A_CmsHtmlIconButton#isEnabled()
*/
@Override
public boolean isEnabled() {
return isEditable();
}
/**
* Returns if the form entry can be deleted depending on the current users permissions and roles.<p>
*
* @return <code>true</code> if the entry can be deleted by the current user, otherwise <code>false</code>
*/
private boolean isEditable() {
if (m_editable == null) {
m_editable = Boolean.valueOf(checkEditable(getWp()));
}
return m_editable.booleanValue();
}
}