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Java > Open Source Codes > de > webman > config > eventhandler > COPropGroupDeleteHandler


1 package de.webman.config.eventhandler;
2
3 import java.util.*;
4 import java.sql.*;
5
6 import com.teamkonzept.web.*;
7 import com.teamkonzept.lib.*;
8 import com.teamkonzept.db.*;
9 import com.teamkonzept.webman.*;
10 import com.teamkonzept.webman.mainint.*;
11 import com.teamkonzept.webman.mainint.db.queries.*;
12 import com.teamkonzept.webman.mainint.events.*;
13
14 /**
15    Löscht eine Propertygruppe sammt ihrer Properties und stellt ein frameset dar, rechts die Liste der Propertygruppen,
16    links leer.
17  * @author $Author: uli $
18  * @version $Revision: 1.4 $
19 */
20 public class COPropGroupDeleteHandler extends DefaultEventHandler implements ParameterTypes, DatabaseDefaults, FrameConstants
21 {
22     private COPropGroupDeleteHandler() {}
23
24     private static COPropGroupDeleteHandler instance = new COPropGroupDeleteHandler();
25
26     public static COPropGroupDeleteHandler getInstance()
27     {
28         return instance;
29     };
30
31     public void handleEvent(TKEvent evt) throws TKException
32     {
33         try {
34             WebManEvent.checkEvent(evt.getRemoteUser(), evt.getName(), ContextConstants.CUSTOMIZE_PROPERTIES); // check if event is allowed
35 String JavaDoc propGroupId = evt.getParameter(PARAMETER, "PROPGROUP_ID");
36             String JavaDoc propGroupName = evt.getParameter(PARAMETER, "PROPGROUP_NAME");
37             propGroupId = (propGroupId != null ? propGroupId : "-1");
38             if ( ! propGroupId.equals("-1"))
39             {
40                 // find the properties of this group
41 TKQuery q = TKDBManager.newQuery(TKDBPropGroupGetGroupProps.class);
42                 q.setQueryParams("PROPGROUP_ID", new Integer JavaDoc(propGroupId));
43                 q.execute();
44                 ResultSet rs = q.fetchResultSet();
45
46                 // löschen der properties der gruppe
47 while (rs != null && rs.next())
48                 {
49                     q = TKDBManager.newQuery(TKDBPropDelete.class);
50                     q.setQueryParams( "PROP_ID", new Integer JavaDoc(rs.getInt("PROP_ID")) );
51                     q.execute();
52                 }
53
54                 // löschen der gruppe selbst
55 q = TKDBManager.newQuery(TKDBPropGroupDelete.class);
56                 q.setQueryParams( "PROPGROUP_ID", new Integer JavaDoc(propGroupId) );
57                 q.execute();
58
59                 // Notify listeners.
60 ConfigurationManager.getInstance().notifyListeners(propGroupName);
61             }
62
63             TKHTMLTemplate t = evt.getPrepHTMLTemplate( "f_co_propgroup.tmpl" );
64             HTMLUtils.fillFrameSet( t, LEFT_FRAME_WIDTH, "CO_PROPGROUP_LIST", "EMPTY" );
65             evt.finishTemplate( t );
66         } catch (Throwable JavaDoc e) {
67             throw WebmanExceptionHandler.getException(e);
68         }
69     }
70
71     public boolean isHandler(TKEvent evt)
72     {
73         return evt.getName().equalsIgnoreCase( "CO_PROPGROUP_DELETE" );
74     }
75
76 }
77
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