| // Step 1 -- Retrieve helper "beans" from the BSF framework |
| |
| scriptaction = bsf.lookupBean( "scriptaction" ) |
| manager = bsf.lookupBean( "manager" ) |
| request = bsf.lookupBean( "request" ) |
| logger = bsf.lookupBean( "logger" ) |
| actionMap = bsf.lookupBean( "actionMap" ) |
| |
| // Step 2 -- Perform the action |
| |
| logger.debug( "START deleteknown.js" ) |
| |
| // Retrieve things from the session and request |
| // NOTE: they are all of type java.lang.String |
| |
| session = request.getSession( false ) |
| uwid = session.getAttribute( "uwid" ) |
| id = request.getParameter( "id" ) |
| |
| logger.debug( "Raw" ) |
| logger.debug( " uwid [" + uwid + "]" ) |
| logger.debug( " id [" + id + "]" ) |
| |
| // Actually do the database work |
| |
| // We have the choice of declaring things out here and making them explicitly |
| // null, or we have to use a different comparison in the "finally" block (defined?) |
| |
| dbselector = null |
| datasource = null |
| conn = null |
| addStatement = null |
| |
| try |
| { |
| dbselector = manager.lookup( scriptaction.DB_CONNECTION ) |
| datasource = dbselector.select( "ceabplanner" ) |
| conn = datasource.getConnection() |
| deleteStatement = conn.prepareStatement( |
| "DELETE FROM studentknowncourselist WHERE student = ( SELECT id FROM students WHERE uw_userid = ? ) AND known_course = ?" |
| ) |
| |
| deleteStatement.setString( 1, uwid ); |
| deleteStatement.setString( 2, id ); |
| |
| result = deleteStatement.executeUpdate() |
| logger.debug( "Result #1 [" + result + "]" ) |
| |
| conn.commit() |
| |
| actionMap.put( "scriptaction-continue", "" ) |
| session.setAttribute( "results", "<SUCCESS>Course deleted at " + Date() + "</SUCCESS>" ) |
| } |
| catch( ex ) |
| { |
| logger.debug( "Caught Exception" ) |
| logger.debug( " " + ex ) |
| } |
| finally |
| { |
| if ( null != addStatement ) { addStatement.close() } |
| if ( null != conn ) { conn.close() } |
| if ( null != datasource ) { dbselector.release( datasource ) } |
| if ( null != dbselector ) { manager.release( dbselector ) } |
| } |
| |
| logger.debug( "END deleteknown.js" ) |
