fix trivial thinko bug regarding the nexturl
[mir.git] / source / mircoders / servlet / ServletModuleContent.java
index b70c29c..3822b64 100755 (executable)
@@ -1,3 +1,34 @@
+/*
+ * Copyright (C) 2001, 2002  The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir 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.
+ *
+ * Mir 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 Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two.  You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries.  If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so.  If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+
 package mircoders.servlet;
 
 import java.io.*;
@@ -7,410 +38,430 @@ import java.net.*;
 import javax.servlet.*;
 import javax.servlet.http.*;
 
+import org.apache.struts.util.MessageResources;
 
 import freemarker.template.*;
 
-import webdb.servlet.*;
-import webdb.module.*;
-import webdb.misc.*;
-import webdb.entity.*;
-import webdb.storage.*;
-
-import mir.entity.*;
-import mir.storage.*;
+import mir.servlet.*;
+import mir.media.*;
 import mir.module.*;
+import mir.misc.*;
+import mir.storage.*;
+import mir.entity.*;
+import mir.util.*;
+import mir.entity.adapter.*;
+import mir.log.*;
+
+import mircoders.global.*;
+import mircoders.storage.*;
+import mircoders.module.*;
+import mircoders.entity.*;
+import mircoders.localizer.*;
 
 /*
  *  ServletModuleContent -
- *  liefert HTML fuer Content
+ *  deliver html for the article admin form.
  *
+ * @version $Id: ServletModuleContent.java,v 1.30 2002/12/28 03:14:42 mh Exp $
+ * @author rk, mir-coders
  *
- * @author RK
  */
 
 public class ServletModuleContent extends ServletModule
 {
+  static ModuleTopics         themenModule;
+  static ModuleSchwerpunkt    schwerpunktModule;
+  static ModuleImages         imageModule;
+
+  static String templateOpString;
+
+// Singelton / Kontruktor
+
+  private static ServletModuleContent instance = new ServletModuleContent();
+  public static ServletModule getInstance() { return instance; }
+
+  private ServletModuleContent() {
+    logger = new LoggerWrapper("ServletModule.Content");
+    try {
+      templateListString = MirConfig.getProp("ServletModule.Content.ListTemplate");
+      templateObjektString = MirConfig.getProp("ServletModule.Content.ObjektTemplate");
+      templateConfirmString = MirConfig.getProp("ServletModule.Content.ConfirmTemplate");
+
+      mainModule = new ModuleContent(DatabaseContent.getInstance());
+      themenModule = new ModuleTopics(DatabaseTopics.getInstance());
+      schwerpunktModule = new ModuleSchwerpunkt(DatabaseFeature.getInstance());
+      imageModule = new ModuleImages(DatabaseImages.getInstance());
+    }
+    catch (StorageObjectException e) {
+      logger.error("servletmodulecontent konnte nicht initialisiert werden");
+    }
+  }
+
+// Methoden
+
+  public void list(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    EntityUsers user = _getUser(req);
+    String offsetParam = req.getParameter("offset");
+    String whereParam = req.getParameter("where");
+    String orderParam = req.getParameter("order");
+
+    int offset =0;
+
+    if (offsetParam != null && !offsetParam.equals(""))
+      offset = Integer.parseInt(offsetParam);
+
+    if (req.getParameter("next") != null)
+      offset=Integer.parseInt(req.getParameter("nextoffset"));
+    else
+      if (req.getParameter("prev") != null)
+        offset = Integer.parseInt(req.getParameter("prevoffset"));
+
+    returnArticleList(req, res, whereParam, orderParam, offset);
+  }
+
+  public void listop(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    EntityUsers user = _getUser(req);
+    String       offsetParam = req.getParameter("offset");
+    int          offset =0;
+
+    String whereParam = req.getParameter("where");
+
+    if (whereParam==null) whereParam = "to_article_type='0'";
+
+// hier offsetcode bearbeiteb
+    if (offsetParam != null && !offsetParam.equals(""))
+      offset = Integer.parseInt(offsetParam);
+
+    if (req.getParameter("next") != null)
+      offset=Integer.parseInt(req.getParameter("nextoffset"));
+    else
+      if (req.getParameter("prev") != null)
+        offset = Integer.parseInt(req.getParameter("prevoffset"));
+
+    String orderParam = req.getParameter("order");
+
+    returnArticleList(req, res, whereParam, orderParam, offset);
+  }
+
+
+  public void search(HttpServletRequest req, HttpServletResponse res)
+      throws ServletModuleException {
+    try {
+      EntityUsers   user = _getUser(req);
+      EntityList    theList;
+      String        fieldParam = req.getParameter("field");
+      String        fieldValueParam = req.getParameter("fieldvalue");
+      String        orderParam = req.getParameter("order");
+
+      theList = ((ModuleContent)mainModule).getContentByField(fieldParam, fieldValueParam, orderParam, 0, user);
+      returnArticleList(req, res, "lower("+ fieldParam + ") like lower('%" + JDBCStringRoutines.escapeStringLiteral(fieldValueParam) + "%')", orderParam, 0);
+    } catch (ModuleException e) {
+      throw new ServletModuleException(e.toString());
+    }
+  }
+
+  public void add(HttpServletRequest req, HttpServletResponse res)
+      throws ServletModuleException {
+    _showObject(null, req, res);
+  }
+
+
+  public void insert(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+//theLog.printDebugInfo(":: content :: trying to insert");
+    try {
+      EntityUsers   user = _getUser(req);
+      HashMap withValues = getIntersectingValues(req, DatabaseContent.getInstance());
+
+      String now = StringUtil.date2webdbDate(new GregorianCalendar());
+      withValues.put("date", now);
+      withValues.put("publish_path", StringUtil.webdbDate2path(now));
+      withValues.put("to_publisher", user.getId());
+      withValues.put("is_produced", "0");
+      if (!withValues.containsKey("is_published"))
+        withValues.put("is_published","0");
+      if (!withValues.containsKey("is_html"))
+        withValues.put("is_html","0");
+
+      String id = mainModule.add(withValues);
+      DatabaseContentToTopics.getInstance().setTopics(id,req.getParameterValues("to_topic"));
+
+      _showObject(id, req, res);
+    }
+    catch (StorageObjectException e) {
+      throw new ServletModuleException(e.toString());
+    }
+    catch (ModuleException e) {
+      throw new ServletModuleException(e.toString());
+    }
+  }
+
+  public void delete(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    EntityUsers   user = _getUser(req);
+
+    String idParam = req.getParameter("id");
+    if (idParam == null) throw new ServletModuleException("Invalid call: id missing");
+
+    String confirmParam = req.getParameter("confirm");
+    String cancelParam = req.getParameter("cancel");
+
+    logger.info("where = " + req.getParameter("where"));
+
+    if (confirmParam == null && cancelParam == null) {
+
+      SimpleHash mergeData = new SimpleHash();
+      mergeData.put("module", "Content");
+      mergeData.put("infoString", "Content: " + idParam);
+      mergeData.put("id", idParam);
+      mergeData.put("where", req.getParameter("where"));
+      mergeData.put("order", req.getParameter("order"));
+      mergeData.put("offset", req.getParameter("offset"));
+      deliver(req, res, mergeData, templateConfirmString);
+    }
+    else {
+      if (confirmParam!= null && !confirmParam.equals("")) {
+        try {
+          mainModule.deleteById(idParam);
+
+          /** @todo the following two should be implied in
+           *  DatabaseContent */
+
+          //delete rows in the content_x_topic-table
+          DatabaseContentToTopics.getInstance().deleteByContentId(idParam);
+          //delete rows in the comment-table
+          DatabaseComment.getInstance().deleteByContentId(idParam);
+        } catch (ModuleException e) {
+          throw new ServletModuleException(e.toString());
+        } catch (StorageObjectException e) {
+          throw new ServletModuleException(e.toString());
+        }
+        list(req,res);
+      }
+      else {
+        // Datensatz anzeigen
+        _showObject(idParam, req, res);
+      }
+    }
+  }
+
+  public void edit(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    String        idParam = req.getParameter("id");
+    if (idParam == null) throw new ServletModuleException("Invalid call: id not supplied ");
+    _showObject(idParam, req, res);
+  }
+
+// methods for attaching media file
+  public void attach(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    String  mediaIdParam = req.getParameter("mid");
+    String  idParam = req.getParameter("cid");
+    if (idParam == null||mediaIdParam==null) throw new ServletModuleException("smod content :: attach :: cid/mid missing");
+
+    try {
+      EntityContent entContent = (EntityContent)mainModule.getById(idParam);
+      entContent.attach(mediaIdParam);
+    }
+    catch(ModuleException e) {
+      logger.error("smod content :: attach :: could not get entityContent");
+    }
+    catch(StorageObjectException e) {
+      logger.error("smod content :: attach :: could not get entityContent");
+    }
+
+    _showObject(idParam, req, res);
+  }
+
+  public void dettach(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    String  cidParam = req.getParameter("cid");
+    String  midParam = req.getParameter("mid");
+    if (cidParam == null) throw new ServletModuleException("smod content :: dettach :: cid missing");
+    if (midParam == null) throw new ServletModuleException("smod content :: dettach :: mid missing");
+
+    try {
+      EntityContent entContent = (EntityContent)mainModule.getById(cidParam);
+      entContent.dettach(cidParam,midParam);
+    }
+    catch(ModuleException e) {
+      logger.error("smod content :: dettach :: could not get entityContent");
+    }
+    catch(StorageObjectException e) {
+      logger.error("smod content :: dettach :: could not get entityContent");
+    }
+
+    _showObject(cidParam, req, res);
+  }
+
+  public void newswire(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
+  {
+    String  idParam = req.getParameter("id");
+    if (idParam == null) throw new ServletModuleException("smod content :: newswire :: id missing");
+    try {
+      EntityContent entContent = (EntityContent)mainModule.getById(idParam);
+      entContent.newswire();
+    }
+    catch(ModuleException e) {
+      logger.error("smod content :: newswire :: could not get entityContent");
+    }
+    catch(StorageObjectException e) {
+      logger.error("smod content :: dettach :: could not get entityContent");
+    }
+
+    list(req, res);
+  }
+
+
+  public void update(HttpServletRequest req, HttpServletResponse res)
+      throws ServletModuleException
+  {
+    try {
+
+      EntityUsers   user = _getUser(req);
+      if (user==null) logger.debug("user null!");
+      String idParam = req.getParameter("id");
+      if (idParam == null) throw new ServletModuleException("Wrong call: (id) is missing");
+
+      HashMap withValues = getIntersectingValues(req, DatabaseContent.getInstance());
+      String[] topic_id = req.getParameterValues("to_topic");
+      String content_id = req.getParameter("id");
+
+      if(user != null) withValues.put("user_id", user.getId());
+      withValues.put("is_produced", "0");
+      if (!withValues.containsKey("is_published"))
+        withValues.put("is_published","0");
+      if (!withValues.containsKey("is_html"))
+        withValues.put("is_html","0");
+
+      String id = mainModule.set(withValues);
+      DatabaseContentToTopics.getInstance().setTopics(req.getParameter("id"),topic_id);
+
+      String whereParam = req.getParameter("where");
+      String orderParam = req.getParameter("order");
+
+      if ((whereParam!=null && !whereParam.equals("")) || (orderParam!=null && !orderParam.equals(""))){
+        list(req,res);
+      }
+      else
+        _showObject(idParam, req, res);
+    }
+    catch (StorageObjectException e) {
+      throw new ServletModuleException(e.toString());
+    }
+    catch (ModuleException e) {
+      throw new ServletModuleException(e.toString());
+    }
+  }
 
-       static ModuleTopics         themenModule;
-       static ModuleSchwerpunkt    schwerpunktModule;
-       static ModuleGruppen        gruppenModule;
-       static ModuleImages         imageModule;
-
-       static String templateOpString;
-
-       // Singelton / Kontruktor
-
-       private static ServletModuleContent instance = new ServletModuleContent();
-       public static ServletModule getInstance() { return instance; }
-
-       private ServletModuleContent() {
-               try {
-                       theLog = Logfile.getInstance(Configuration.getProperty("Home") + Configuration.getProperty("ServletModule.Content.Logfile"));
-                       templateListString = Configuration.getProperty("ServletModule.Content.ListTemplate");
-                       templateOpString = Configuration.getProperty("ServletModule.Content.OpTemplate");
-                       templateObjektString = Configuration.getProperty("ServletModule.Content.ObjektTemplate");
-                       templateConfirmString = Configuration.getProperty("ServletModule.Content.ConfirmTemplate");
-                       mainModule = new ModuleContent(DatabaseContent.getInstance());
-                       themenModule = new ModuleTopics(DatabaseTopics.getInstance());
-                       schwerpunktModule = new ModuleSchwerpunkt(DatabaseFeature.getInstance());
-                       gruppenModule = new ModuleGruppen(DatabaseGroups.getInstance());
-                       imageModule = new ModuleImages(DatabaseImages.getInstance());
-               }
-               catch (StorageObjectException e) {
-                               theLog.printDebugInfo("servletmodulecontent konnte nicht initialisiert werden");
-               }
-       }
-
-       // Methoden
-
-       public void list(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               try {
-                       EntityUsers user = _getUser(req);
-                       EntityList   theList;
-                       String       offsetParam = req.getParameter("offset");
-                       int          offset =0;
-
-                       // hier offsetcode bearbeiteb
-                       if (offsetParam != null && !offsetParam.equals(""))
-                                       offset = Integer.parseInt(offsetParam);
-
-                       if (req.getParameter("next") != null)
-                                       offset=Integer.parseInt(req.getParameter("nextoffset"));
-                       else
-                                       if (req.getParameter("prev") != null)
-                                               offset = Integer.parseInt(req.getParameter("prevoffset"));
-
-                       String        whereParam = req.getParameter("where");
-                       String        orderParam = req.getParameter("order");
-
-                       theList = ((ModuleContent)mainModule).getContent(whereParam, orderParam, offset, user);
-                       _list(theList, req, res);
-               }       catch (ModuleException e) {
-                       throw new ServletModuleException(e.toString());
-               }
-       }
-
-       public void listop(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               try {
-                       EntityUsers user = _getUser(req);
-                       EntityList   theList;
-                       String       offsetParam = req.getParameter("offset");
-                       int          offset =0;
-
-                       String whereParam = req.getParameter("where");
-
-                       if (whereParam==null) whereParam = "to_article_type='0'";
-
-                       // hier offsetcode bearbeiteb
-                       if (offsetParam != null && !offsetParam.equals(""))
-                                       offset = Integer.parseInt(offsetParam);
-
-                       if (req.getParameter("next") != null)
-                                       offset=Integer.parseInt(req.getParameter("nextoffset"));
-                       else
-                                       if (req.getParameter("prev") != null)
-                                               offset = Integer.parseInt(req.getParameter("prevoffset"));
-
-                       String orderParam = req.getParameter("order");
-
-                       theList = ((ModuleContent)mainModule).getContent(whereParam, orderParam, offset, user);
-                       _list(theList, req, res);
-               }       catch (ModuleException e) {
-                       throw new ServletModuleException(e.toString());
-               }
-       }
-
-
-       public void search(HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException {
-               try {
-                       EntityUsers   user = _getUser(req);
-                       EntityList    theList;
-                       String        fieldParam = req.getParameter("field");
-                       String        fieldValueParam = req.getParameter("fieldvalue");
-                       String        orderParam = req.getParameter("order");
-
-                       theList = ((ModuleContent)mainModule).getContentByField(fieldParam, fieldValueParam, orderParam, 0, user);
-                       _list(theList, req, res);
-               } catch (ModuleException e) {
-                       throw new ServletModuleException(e.toString());
-               }
-       }
-
-       public void add(HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException {
-
-               EntityUsers   user = _getUser(req);
-               SimpleHash mergeData = new SimpleHash();
-               mergeData.put("new", "1");
-               mergeData.put("is_published", "1");
-               String now = StringUtil.date2webdbDate(new GregorianCalendar());
-               mergeData.put("date", new SimpleScalar(now));
-               mergeData.put("themenPopupData", themenModule.getTopicsAsSimpleList());
-               mergeData.put("gruppenPopupData", gruppenModule.getGruppenAsSimpleList());
-               try {
-                       mergeData.put("articletypePopupData", DatabaseArticleType.getInstance().getPopupData());
-               } catch (Exception e) {theLog.printError("articletype could not be fetched.");}
-               //mergeData.put("gruppenHashData", gruppenModule.getHashData());
-               mergeData.put("schwerpunktPopupData", schwerpunktModule.getSchwerpunktAsSimpleList());
-               mergeData.put("login_user", HTMLTemplateProcessor.makeSimpleHash(user));
-               deliver(req, res, mergeData, templateObjektString);
-       }
-
-
-       public void insert(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               //theLog.printDebugInfo(":: content :: trying to insert");
-               try {
-                       EntityUsers   user = _getUser(req);
-                       HashMap withValues = getIntersectingValues(req, DatabaseContent.getInstance());
-                       //theLog.printDebugInfo(":: content :: got intersecting values");
-                       String now = StringUtil.date2webdbDate(new GregorianCalendar());
-                       withValues.put("date", now);
-                       withValues.put("publish_path", StringUtil.webdbDate2path(now));
-                       withValues.put("to_publisher", user.getId());
-                       withValues.put("is_produced", "0");
-                       if (!withValues.containsKey("is_published"))
-                               withValues.put("is_published","0");
-                       if (!withValues.containsKey("is_html"))
-                               withValues.put("is_html","0");
-                       if (withValues.get("creator").toString().equals(""))
-                               withValues.put("creator","Anonym");
-                       String id = mainModule.add(withValues);
-                       DatabaseContentToTopics.getInstance().setTopics(id,req.getParameter("to_topic"));
-                       //theLog.printDebugInfo(":: content :: inserted");
-                       _showObject(id, req, res);
-               }
-               catch (StorageObjectException e) { throw new ServletModuleException(e.toString());}
-               catch (ModuleException e) { throw new ServletModuleException(e.toString());}
-       }
-
-       public void delete(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-
-               EntityUsers   user = _getUser(req);
-               // hier pruefen ob dem akt. user loeschen erlaubt ist...
-               String idParam = req.getParameter("id");
-               if (idParam == null) throw new ServletModuleException("Falscher Aufruf: (id) nicht angegeben");
-
-               String confirmParam = req.getParameter("confirm");
-               String cancelParam = req.getParameter("cancel");
-
-               if (confirmParam == null && cancelParam == null) {
-                       // HTML Ausgabe zum Confirmen!
-                       SimpleHash mergeData = new SimpleHash();
-                       mergeData.put("module", "Content");
-                       mergeData.put("infoString", "Content: " + idParam);
-                       mergeData.put("id", idParam);
-                       mergeData.put("where", req.getParameter("where"));
-                       mergeData.put("order", req.getParameter("order"));
-                       mergeData.put("offset", req.getParameter("offset"));
-                       deliver(req, res, mergeData, templateConfirmString);
-               }
-               else {
-                       if (confirmParam!= null && !confirmParam.equals("")) {
-                               try {
-                                       mainModule.deleteById(idParam);
-                                       //delete rows in the content_x_topic-table
-                                       DatabaseContentToTopics.getInstance().deleteByContentId(idParam);
-                                       //delete rows in the comment-table
-                                       DatabaseComment.getInstance().deleteByContentId(idParam);
-                               } catch (ModuleException e) {
-                                       throw new ServletModuleException(e.toString());
-                               } catch (StorageObjectException e) {
-                                       throw new ServletModuleException(e.toString());
-                               }
-                               list(req,res);
-                       }
-                       else {
-                               // Datensatz anzeigen
-                               _showObject(idParam, req, res);
-                       }
-               }
-       }
-
-       public void edit(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               String        idParam = req.getParameter("id");
-               if (idParam == null) throw new ServletModuleException("Falscher Aufruf: (id) nicht angegeben");
-               _showObject(idParam, req, res);
-       }
-
-       // methods for attaching media file
-       public void attach(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               String  mediaIdParam = req.getParameter("mid");
-               String  idParam = req.getParameter("cid");
-               if (idParam == null||mediaIdParam==null) throw new ServletModuleException("smod content :: attach :: cid/mid missing");
-               try {
-                       EntityContent entContent = (EntityContent)mainModule.getById(idParam);
-                       entContent.attach(mediaIdParam);
-               }
-               catch(ModuleException e) {
-                       theLog.printError("smod content :: attach :: could not get entityContent");
-               }
-               _showObject(idParam, req, res);
-       }
-
-       public void dettach(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               String  idParam = req.getParameter("cid");
-               if (idParam == null) throw new ServletModuleException("smod content :: dettach :: cid missing");
-               try {
-                       EntityContent entContent = (EntityContent)mainModule.getById(idParam);
-                       entContent.dettach();
-               }
-               catch(ModuleException e) {
-                       theLog.printError("smod content :: dettach :: could not get entityContent");
-               }
-               _showObject(idParam, req, res);
-       }
-
-       public void newswire(HttpServletRequest req, HttpServletResponse res) throws ServletModuleException
-       {
-               String  idParam = req.getParameter("id");
-               if (idParam == null) throw new ServletModuleException("smod content :: newswire :: id missing");
-               try {
-                       EntityContent entContent = (EntityContent)mainModule.getById(idParam);
-                       entContent.newswire();
-               }
-               catch(ModuleException e) {
-                       theLog.printError("smod content :: newswire :: could not get entityContent");
-               }
-               list(req, res);
-       }
-
-
-       public void update(HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException
-       {
-               try {
-
-                       EntityUsers   user = _getUser(req);
-                       if (user==null) theLog.printDebugInfo("user null!");
-                       String idParam = req.getParameter("id");
-                       if (idParam == null) throw new ServletModuleException("Falscher Aufruf: (id) nicht angegeben");
-
-                       HashMap withValues = getIntersectingValues(req, DatabaseContent.getInstance());
-                       String topic_id = req.getParameter("to_topic");
-                       String content_id = req.getParameter("id");
-                       // withValues.put("publish_path", StringUtil.webdbDate2path((String)withValues.get("date")));
-                       if(user != null) withValues.put("user_id", user.getId());
-                       withValues.put("is_produced", "0");
-                       if (!withValues.containsKey("is_published"))
-                               withValues.put("is_published","0");
-                       if (!withValues.containsKey("is_html"))
-                               withValues.put("is_html","0");
-                       if (withValues.get("creator").toString().equals(""))
-                               withValues.put("creator","Anonym");
-                       //theLog.printDebugInfo("updating. ");
-                       String id = mainModule.set(withValues);
-                       DatabaseContentToTopics.getInstance().setTopics(req.getParameter("id"),req.getParameter("to_topic"));
-                       //theLog.printDebugInfo("update done. ");
-                       String whereParam = req.getParameter("where");
-                       String orderParam = req.getParameter("order");
-                       if ((whereParam!=null && !whereParam.equals("")) || (orderParam!=null && !orderParam.equals(""))){
-                               //theLog.printDebugInfo("update to list");
-                               list(req,res);
-                       }
-                       else
-                               _showObject(idParam, req, res);
-               }
-               catch (StorageObjectException e) { throw new ServletModuleException(e.toString());}
-               catch (ModuleException e) { throw new ServletModuleException(e.toString());}
-       }
-
-       //
-       // Hilfsmethoden
-
-       private void _showObject(String id, HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException {
-
-               try {
-                       EntityContent entContent=(EntityContent)mainModule.getById(id);
-                       SimpleHash mergeData =  HTMLTemplateProcessor.makeSimpleHash(entContent);
-                       EntityList topicToContent = DatabaseContentToTopics.getInstance().getTopics(entContent);
-                       if (topicToContent!=null && topicToContent.size()>0){
-                               Entity topics = (EntityTopics)topicToContent.elementAt(0);
-                               mergeData.put("to_topic",topics.getId());
-                       }
-                       //obsolete, because of psqgl 7.1.x
-      //mergeData.put("content_data", entContent.getContentData());
-                       mergeData.put("themenPopupData", themenModule.getTopicsAsSimpleList());
-                       mergeData.put("gruppenPopupData", gruppenModule.getGruppenAsSimpleList());
-                       try {
-                               mergeData.put("articletypePopupData", DatabaseArticleType.getInstance().getPopupData());
-                       } catch (Exception e) {theLog.printError("articletype could not be fetched.");}
-
-                       // get the images
-                       String currentMediaId = entContent.getValue("to_media");
-                       SimpleHash imageHash = new SimpleHash();
-                       if (currentMediaId!=null && !currentMediaId.equals("")) {
-                               imageHash.put(currentMediaId, HTMLTemplateProcessor.makeSimpleHash(imageModule.getById(currentMediaId)));
-                               mergeData.put("images", imageHash);
-                       }
-
-
-                       //mergeData.put("gruppenHashData", gruppenModule.getHashData());
-                       mergeData.put("schwerpunktPopupData", schwerpunktModule.getSchwerpunktAsSimpleList());
-                       // hier code um zur liste zurueckzukommen
-                       String offsetParam, whereParam, orderParam;
-                       if ((offsetParam = req.getParameter("offset"))!=null) mergeData.put("offset", offsetParam);
-                       if ((whereParam = req.getParameter("where"))!=null) mergeData.put("where", whereParam);
-                       if ((orderParam = req.getParameter("order"))!=null) mergeData.put("order", orderParam);
-                       mergeData.put("login_user", HTMLTemplateProcessor.makeSimpleHash(_getUser(req)));
-                       deliver(req, res, mergeData, templateObjektString);
-               }
-               catch (Exception e) { throw new ServletModuleException(e.toString());}
-       }
-
-
-       public void _list(EntityList theList, HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException {
-
-               try {
-                       // hier dann htmlcode rausschreiben
-                       if (theList == null || theList.getCount() == 0 || theList.getCount()>1) {
-                               SimpleHash modelRoot = HTMLTemplateProcessor.makeSimpleHashWithEntitylistInfos(theList);
-                               modelRoot.put("themenHashData", themenModule.getHashData());
-                               modelRoot.put("schwerpunktHashData", schwerpunktModule.getHashData());
-                               modelRoot.put("gruppenHashData", gruppenModule.getHashData());
-                               modelRoot.put("articletypeHash", DatabaseArticleType.getInstance().getHashData());
-                               deliver(req, res, modelRoot, templateListString);
-                       } else  { // count = 1
-                               _showObject(theList.elementAt(0).getId(),req,res);
-                       }
-               } catch (StorageObjectException e) {
-                       throw new ServletModuleException(e.toString());
-               }
-       }
-
-       public void _listop(EntityList theList, HttpServletRequest req, HttpServletResponse res)
-               throws ServletModuleException {
-
-               try {
-                       // hier dann htmlcode rausschreiben
-                       if (theList == null || theList.getCount() == 0 || theList.getCount()>1) {
-                               SimpleHash modelRoot = HTMLTemplateProcessor.makeSimpleHashWithEntitylistInfos(theList);
-                               modelRoot.put("articletypeHash", DatabaseArticleType.getInstance().getHashData());
-                               modelRoot.put("gruppenHashData", gruppenModule.getHashData());
-                               deliver(req, res, modelRoot, templateListString);
-                       } else  { // count = 1
-                               _showObject(theList.elementAt(0).getId(), req, res);
-                       }
-               } catch (StorageObjectException e) {
-                       throw new ServletModuleException(e.toString());
-               }
-       }
-
-       private EntityUsers _getUser(HttpServletRequest req)
-       {
-               HttpSession session=req.getSession(false);
-               return (EntityUsers)session.getAttribute("login.uid");
-       }
-
-
+/*
+  * HelperMethod shows the basic article editing form.
+  *
+  * if the "id" parameter is null, it means show an empty form to add a new
+  * article.
+*/
+  private void _showObject(String id, HttpServletRequest req, HttpServletResponse res)
+      throws ServletModuleException {
+
+    SimpleHash extraInfo = new SimpleHash();
+    try {
+      TemplateModelRoot entContent;
+
+      if (id != null) {
+        entContent = (TemplateModelRoot)mainModule.getById(id);
+      }
+      else {
+        SimpleHash withValues = new SimpleHash();
+        withValues.put("new", "1");
+        withValues.put("is_published", "0");
+        String now = StringUtil.date2webdbDate(new GregorianCalendar());
+        withValues.put("date", new SimpleScalar(now));
+        EntityUsers   user = _getUser(req);
+        withValues.put("login_user", user);
+        entContent = withValues;
+      }
+
+      extraInfo.put("themenPopupData", themenModule.getTopicsAsSimpleList());
+      extraInfo.put("articletypePopupData", DatabaseArticleType.getInstance().getPopupData());
+      extraInfo.put("languagePopupData", DatabaseLanguage.getInstance().getPopupData());
+
+      // code to be able to return to the list:
+      String offsetParam, whereParam, orderParam;
+      if ((offsetParam = req.getParameter("offset"))!=null) extraInfo.put("offset", offsetParam);
+      if ((whereParam = req.getParameter("where"))!=null) extraInfo.put("where", whereParam);
+      if ((orderParam = req.getParameter("order"))!=null) extraInfo.put("order", orderParam);
+
+      extraInfo.put("login_user", _getUser(req));
+      deliver(req, res, entContent, extraInfo, templateObjektString);
+    }
+    catch (Exception e) {
+      throw new ServletModuleException(e.toString());
+    }
+  }
+
+  public void returnArticleList(HttpServletRequest aRequest, HttpServletResponse aResponse,
+                                String aWhereClause, String anOrderByClause, int anOffset) throws ServletModuleException {
+    // ML: experiment in using the producer's generation system instead of the
+    //     old one...
+
+    EntityAdapterModel model;
+    int nrArticlesPerPage = 20;
+    int count;
+
+    try {
+      Map responseData = ServletHelper.makeGenerationData(getLocale(aRequest));
+      model = MirGlobal.localizer().dataModel().adapterModel();
+
+      Object contentList =
+          new CachingRewindableIterator(
+          new EntityIteratorAdapter( aWhereClause, anOrderByClause, nrArticlesPerPage,
+          MirGlobal.localizer().dataModel().adapterModel(), "content", nrArticlesPerPage, anOffset)
+      );
+
+      responseData.put("nexturl", null);
+      responseData.put("prevurl", null);
+
+      count=mainModule.getSize(aWhereClause);
+
+      if (count>=anOffset+nrArticlesPerPage) {
+        responseData.put("nexturl" ,
+                         "module=Content&do=list&where=" + HTMLRoutines.encodeURL(aWhereClause) +
+                         "&order=" + HTMLRoutines.encodeURL(anOrderByClause) +
+                         "&offset=" + (anOffset + nrArticlesPerPage));
+      }
+      if (anOffset>0) {
+        responseData.put("prevurl" ,
+                         "module=Content&do=list&where=" + HTMLRoutines.encodeURL(aWhereClause) +
+                         "&order=" + HTMLRoutines.encodeURL(anOrderByClause) +
+                         "&offset=" + Math.max(anOffset - nrArticlesPerPage, 0));
+      }
+
+      responseData.put("articles", contentList);
+
+      responseData.put("thisurl" ,
+                       "module=Content&do=list&where=" + HTMLRoutines.encodeURL(aWhereClause) +
+                       "&order=" + HTMLRoutines.encodeURL(anOrderByClause) +
+                       "&offset=" + anOffset);
+
+      responseData.put("from" , Integer.toString(anOffset+1));
+      responseData.put("count", Integer.toString(count));
+      responseData.put("to", Integer.toString(Math.min(anOffset+nrArticlesPerPage, count)));
+      responseData.put("offset" , Integer.toString(anOffset));
+      responseData.put("order", anOrderByClause);
+      responseData.put("where" , aWhereClause);
+
+      ServletHelper.generateResponse(aResponse.getWriter(), responseData, "contentlist.template");
+    }
+    catch (Throwable e) {
+      throw new ServletModuleException(e.toString());
+    }
+  }
+
+  private EntityUsers _getUser(HttpServletRequest req)
+  {
+    HttpSession session=req.getSession(false);
+    return (EntityUsers)session.getAttribute("login.uid");
+  }
 }
-