/*==========================================================================*\
| $Id: GraderSubmissionComponent.java,v 1.2 2010/09/27 04:22:36 stedwar2 Exp $
|*-------------------------------------------------------------------------*|
| Copyright (C) 2006-2008 Virginia Tech
|
| This file is part of Web-CAT.
|
| Web-CAT is free software; you can redistribute it and/or modify
| it under the terms of the GNU Affero General Public License as published
| by the Free Software Foundation; either version 3 of the License, or
| (at your option) any later version.
|
| Web-CAT 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 Affero General Public License
| along with Web-CAT; if not, see <http://www.gnu.org/licenses/>.
\*==========================================================================*/
package org.webcat.grader;
import com.webobjects.appserver.*;
import com.webobjects.foundation.*;
//-------------------------------------------------------------------------
/**
* A {@link GraderAssignmentComponent} that adds support for initializing
* the current submission selection from login parameters.
*
* @author Stephen Edwards
* @author Last changed by $Author: stedwar2 $
* @version $Revision: 1.2 $, $Date: 2010/09/27 04:22:36 $
*/
public class GraderSubmissionComponent
extends GraderAssignmentComponent
{
//~ Constructors ..........................................................
// ----------------------------------------------------------
/**
* Creates a new GraderSubmissionComponent object.
*
* @param context The context to use
*/
public GraderSubmissionComponent( WOContext context )
{
super( context );
}
//~ Methods ...............................................................
// ----------------------------------------------------------
/**
* Extracts submission identification from the given startup
* parameters.
* @param params A dictionary of form values to decode
* @return True if successful, false if the parameter is missing
*/
@SuppressWarnings("unchecked")
public boolean startWith( NSDictionary params )
{
boolean result = false;
String sid = stringValueForKey( params, Submission.ID_FORM_KEY );
if ( sid != null )
{
result = startWith( Submission.forId( localContext(), sid ) );
}
return result;
}
// ----------------------------------------------------------
/**
* Sets the relevant submission properties for this
* session.
* @param submission the submission to use for generating settings
* @return True if successful, false if the submission is not valid
*/
protected boolean startWith( Submission submission )
{
boolean result = false;
org.webcat.core.User user = user();
if ( submission != null
&& ( submission.user() == user
|| submission.assignmentOffering().courseOffering()
.isInstructor( user )
|| submission.assignmentOffering().courseOffering()
.isGrader( user ) )
&& startWith( submission.assignmentOffering().courseOffering() ) )
{
prefs().setSubmissionRelationship( submission );
result = true;
}
return result;
}
}