added:
[mir.git] / source / mircoders / localizer / basic / MirBasicDataModelLocalizer.java
index 597248b..a1a9425 100755 (executable)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2001, 2002  The Mir-coders group
+ * Copyright (C) 2001, 2002 The Mir-coders group
  *
  * This file is part of Mir.
  *
  * 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.
+ * the code of this program with  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.localizer.basic;
 
-import java.util.HashMap;\r
-import java.util.Iterator;\r
-import java.util.List;\r
-import java.util.Map;\r
-import java.util.Vector;\r
-\r
-import mir.config.MirPropertiesConfiguration;\r
-import mir.entity.Entity;\r
-import mir.entity.adapter.EntityAdapter;\r
-import mir.entity.adapter.EntityAdapterDefinition;\r
-import mir.entity.adapter.EntityAdapterModel;\r
-import mir.log.LoggerWrapper;\r
-import mir.media.MediaHelper;\r
-import mir.media.MirMedia;\r
-import mir.util.ParameterExpander;\r
-import mir.util.RewindableIterator;\r
-import mircoders.entity.EntityUploadedMedia;\r
-import mircoders.global.MirGlobal;\r
-import mircoders.localizer.MirAdminInterfaceLocalizer;\r
-import mircoders.localizer.MirDataModelLocalizer;\r
-import mircoders.localizer.MirLocalizerExc;\r
-import mircoders.localizer.MirLocalizerFailure;\r
-import mircoders.storage.DatabaseArticleType;\r
-import mircoders.storage.DatabaseAudio;\r
-import mircoders.storage.DatabaseBreaking;\r
-import mircoders.storage.DatabaseComment;\r
-import mircoders.storage.DatabaseCommentStatus;\r
-import mircoders.storage.DatabaseContent;\r
-import mircoders.storage.DatabaseImageType;\r
-import mircoders.storage.DatabaseImages;\r
-import mircoders.storage.DatabaseLanguage;\r
-import mircoders.storage.DatabaseMedia;\r
-import mircoders.storage.DatabaseMediaType;\r
-import mircoders.storage.DatabaseMediafolder;\r
-import mircoders.storage.DatabaseMessages;\r
-import mircoders.storage.DatabaseOther;\r
-import mircoders.storage.DatabaseTopics;\r
-import mircoders.storage.DatabaseUploadedMedia;\r
-import mircoders.storage.DatabaseUsers;\r
-import mircoders.storage.DatabaseVideo;
+import mir.config.MirPropertiesConfiguration;
+import mir.entity.Entity;
+import mir.entity.adapter.EntityAdapter;
+import mir.entity.adapter.EntityAdapterDefinition;
+import mir.entity.adapter.EntityAdapterModel;
+import mir.entity.adapter.ToManyRelationField;
+import mir.entity.adapter.ToOneRelationField;
+import mir.generator.Generator;
+import mir.generator.GeneratorExc;
+import mir.generator.GeneratorFailure;
+import mir.log.LoggerWrapper;
+import mir.media.MediaHandler;
+import mir.misc.NumberUtils;
+import mir.util.JDBCStringRoutines;
+import mir.util.ParameterExpander;
+import mir.util.StructuredContentParser;
+import mircoders.entity.EntityContent;
+import mircoders.entity.EntityUploadedMedia;
+import mircoders.global.MirGlobal;
+import mircoders.localizer.MirAdminInterfaceLocalizer;
+import mircoders.localizer.MirDataModelLocalizer;
+import mircoders.localizer.MirLocalizerExc;
+import mircoders.localizer.MirLocalizerFailure;
+import mircoders.media.MediaHelper;
+import mircoders.module.ModuleCommentStatus;
+import mircoders.module.ModuleContent;
+import mircoders.module.ModuleLanguage;
+import mircoders.storage.*;
+import multex.Failure;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
 
 public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
-  private EntityAdapterModel model;
-  protected LoggerWrapper logger;
-  protected MirPropertiesConfiguration configuration;
-
-  public MirBasicDataModelLocalizer() throws MirLocalizerFailure, MirLocalizerExc {
-    model=null;
-    logger = new LoggerWrapper("Localizer.DataModel");
+  protected LoggerWrapper logger = new LoggerWrapper("Localizer.DataModel");
+  protected MirPropertiesConfiguration configuration = MirPropertiesConfiguration.instance();
+  protected ModuleLanguage languageModule = new ModuleLanguage();
 
+  protected void constructContentAdapterDefinition(EntityAdapterDefinition anEntityAdapterDefinition) throws MirLocalizerFailure, MirLocalizerExc {
     try {
-      configuration = MirPropertiesConfiguration.instance();
-    }
-    catch (Throwable e) {
-      throw new MirLocalizerFailure("Can't get configuration: " + e.getMessage(), e);
-    }
-  }
+      anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      anEntityAdapterDefinition.addDBDateField("changedate", "webdb_lastchange", configuration.getString("Mir.DefaultTimezone"));
+      anEntityAdapterDefinition.addMirDateField("date", "date", configuration.getString("Mir.DefaultTimezone"));
 
-  public EntityAdapterModel adapterModel() throws MirLocalizerFailure {
-    if (model==null)
-      model = buildModel();
+      anEntityAdapterDefinition.addCalculatedField("lockinguser", new ToOneRelationField("to_locking_user", "id", "user"));
+      anEntityAdapterDefinition.addCalculatedField("is_locked", new ContentToIsLockedField());
 
-    return model;
-  };
-
-  protected void constructContentAdapterDefinition(EntityAdapterDefinition anEntityAdapterDefinition) throws MirLocalizerFailure {
-    try {
-      anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create");
-      anEntityAdapterDefinition.addDBDateField("changedate", "webdb_lastchange");
-      anEntityAdapterDefinition.addMirDateField("date", "date");
       anEntityAdapterDefinition.addCalculatedField("to_topics", new ContentToTopicsField());
       anEntityAdapterDefinition.addCalculatedField("to_comments", new ContentToCommentsField());
-      anEntityAdapterDefinition.addCalculatedField("language", new ContentToLanguageField());
-
+      anEntityAdapterDefinition.addCalculatedField("language", new ToOneRelationField("to_language", "language", "id"));
       anEntityAdapterDefinition.addCalculatedField("commentcount", new ContentCommentCountField(" and is_published='1'"));
       anEntityAdapterDefinition.addCalculatedField("fullcommentcount", new ContentCommentCountField(""));
+      anEntityAdapterDefinition.addCalculatedField("commentstatuscount", new CommentStatusCountField());
+
+      anEntityAdapterDefinition.addCalculatedField("mediacount", new ContentMediaCountField("uploaded_media", true));
+      anEntityAdapterDefinition.addCalculatedField("fullmediacount", new ContentMediaCountField("uploaded_media", false));
 
       anEntityAdapterDefinition.addCalculatedField("to_uploaded_media", new ContentToMediaField( "uploadedMedia" ));
       anEntityAdapterDefinition.addCalculatedField("to_media_images",  new ContentToMediaField( "image" ));
       anEntityAdapterDefinition.addCalculatedField("to_media_audio", new ContentToMediaField( "audio" ));
       anEntityAdapterDefinition.addCalculatedField("to_media_video", new ContentToMediaField( "video" ));
       anEntityAdapterDefinition.addCalculatedField("to_media_other", new ContentToMediaField( "otherMedia" ));
+
+      anEntityAdapterDefinition.addCalculatedField("firstImage",  new ContentToFirstMediaField( "image" ));
+      anEntityAdapterDefinition.addCalculatedField("firstAudio", new ContentToFirstMediaField( "audio" ));
+      anEntityAdapterDefinition.addCalculatedField("firstVideo", new ContentToFirstMediaField( "video" ));
+      anEntityAdapterDefinition.addCalculatedField("firstOther", new ContentToFirstMediaField( "otherMedia" ));
+
       anEntityAdapterDefinition.addCalculatedField("to_all_uploaded_media", new ContentToMediaField( "uploadedMedia", false));
       anEntityAdapterDefinition.addCalculatedField("to_all_media_images",  new ContentToMediaField( "image", false));
       anEntityAdapterDefinition.addCalculatedField("to_all_media_audio", new ContentToMediaField( "audio", false));
@@ -120,28 +108,63 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
       anEntityAdapterDefinition.addCalculatedField("to_all_media_other", new ContentToMediaField( "otherMedia", false));
       anEntityAdapterDefinition.addCalculatedField("to_media_icon", new ContentToIconField());
 
-      anEntityAdapterDefinition.addCalculatedField("article_type", new ContentToArticleTypeField());
+      anEntityAdapterDefinition.addCalculatedField("article_type", new ToOneRelationField("to_article_type", "articleType", "id"));
 
       anEntityAdapterDefinition.addCalculatedField("description_parsed", new FilteredField("description"));
       anEntityAdapterDefinition.addCalculatedField("content_data_parsed", new FilteredField("content_data"));
 
       anEntityAdapterDefinition.addCalculatedField("children", new ContentToChildrenField());
-      anEntityAdapterDefinition.addCalculatedField("parent", new ContentToParentField());
+      anEntityAdapterDefinition.addCalculatedField("parent", new ToOneRelationField("to_content", "content", "id"));
 
       anEntityAdapterDefinition.addCalculatedField("publicurl", new ExpandedField(configuration.getString("Article.PublicUrl")));
 
       anEntityAdapterDefinition.addCalculatedField("operations",
           new EntityToSimpleOperationsField(MirGlobal.localizer().adminInterface().simpleArticleOperations()));
+
+      anEntityAdapterDefinition.addCalculatedField("languagename", new ContentToLanguageNameField());
+
+      anEntityAdapterDefinition.addCalculatedField("is_original", new ContentIsOriginalField());
+      anEntityAdapterDefinition.addCalculatedField("to_original", new ContentToOriginalField());
+      anEntityAdapterDefinition.addCalculatedField("to_translations", new ContentToTranslationsField());
+      anEntityAdapterDefinition.addCalculatedField("to_translation", new ContentToTranslationField());
+
+      anEntityAdapterDefinition.addCalculatedField("allow_publication",
+          new EntityAdapterDefinition.CalculatedField() {
+
+            public Object getValue(EntityAdapter anEntityAdapter) {
+              try {
+                return new Boolean(MirGlobal.localizer().openPostings().
+                    allowArticlePublication((EntityContent) anEntityAdapter.getEntity()));
+              }
+              catch (Throwable t) {
+                return  Boolean.FALSE;
+              }
+            }
+          }
+      );
+
+      anEntityAdapterDefinition.addCalculatedField("previews", new EntityAdapterDefinition.CalculatedField() {
+        public Object getValue(EntityAdapter anEntityAdapter) {
+          try {
+            return MirGlobal.localizer().adminInterface().getPreviewPages(anEntityAdapter);
+          }
+          catch (MirLocalizerExc e) {
+            throw new Failure("Cannot get previews for article", e);
+          }
+        }
+      });
     }
     catch (Throwable t) {
       throw new MirLocalizerFailure(t.getMessage(), t);
     }
   }
 
+
+
   protected void constructCommentAdapterDefinition(EntityAdapterDefinition anEntityAdapterDefinition) throws MirLocalizerFailure {
     try {
-      anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create");
-      anEntityAdapterDefinition.addCalculatedField("to_content", new CommentToContentField());
+      anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      anEntityAdapterDefinition.addCalculatedField("to_content", new ToOneRelationField("to_media", "content", "id"));
       anEntityAdapterDefinition.addCalculatedField("status", new CommentToStatusField());
 
       anEntityAdapterDefinition.addCalculatedField("to_uploaded_media", new CommentToMediaField( "uploadedMedia" ));
@@ -166,7 +189,7 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected EntityAdapterModel buildModel() throws MirLocalizerFailure {
+  public EntityAdapterModel adapterModel() throws MirLocalizerFailure, MirLocalizerExc {
     EntityAdapterModel result = new EntityAdapterModel();
 
     try {
@@ -179,27 +202,81 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
       definition = new EntityAdapterDefinition();
       constructCommentAdapterDefinition( definition );
       result.addMapping( "comment", DatabaseComment.getInstance(), definition);
+      result.addMapping( "commentStatus", DatabaseCommentStatus.getInstance(), new EntityAdapterDefinition());
 
       result.addMapping( "articleType", DatabaseArticleType.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "commentStatus", DatabaseCommentStatus.getInstance(), new EntityAdapterDefinition());
+
+      result.addMapping( "mediaType", DatabaseMediaType.getInstance(), new EntityAdapterDefinition());
+
 
       definition = new EntityAdapterDefinition();
-      definition.addDBDateField("creationdate", "webdb_create");
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
       result.addMapping( "breakingNews", DatabaseBreaking.getInstance(), definition);
 
+      definition = new EntityAdapterDefinition();
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      result.addMapping( "internalMessage", DatabaseMessages.getInstance(), definition);
+
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("mediafolder", new ToOneRelationField("to_media_folder", "mediaFolder", "id"));
+      definition.addCalculatedField("human_readable_size", new HumanReadableSizeField("size"));
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("info", new MediaToMediaInfoField());
+      result.addMapping( "uploadedMedia", DatabaseUploadedMedia.getInstance(), definition);
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("mediafolder", new ToOneRelationField("to_media_folder", "mediaFolder", "id"));
+      definition.addCalculatedField("human_readable_size", new HumanReadableSizeField("size"));
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("info", new MediaToMediaInfoField());
+      definition.addCalculatedField("big_icon", new MediaToBigIconField());
+      result.addMapping( "image", DatabaseImages.getInstance(), definition);
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("mediafolder", new ToOneRelationField("to_media_folder", "mediaFolder", "id"));
+      definition.addCalculatedField("human_readable_size", new HumanReadableSizeField("size"));
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("info", new MediaToMediaInfoField());
+      definition.addCalculatedField("big_icon", new MediaToBigIconField());
+      result.addMapping( "audio", DatabaseAudio.getInstance(), definition);
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("mediafolder", new ToOneRelationField("to_media_folder", "mediaFolder", "id"));
+      definition.addCalculatedField("human_readable_size", new HumanReadableSizeField("size"));
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("info", new MediaToMediaInfoField());
+      definition.addCalculatedField("big_icon", new MediaToBigIconField());
+      result.addMapping( "video", DatabaseVideo.getInstance(), definition);
+
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("mediafolder", new ToOneRelationField("to_media_folder", "mediaFolder", "id"));
+      definition.addCalculatedField("human_readable_size", new HumanReadableSizeField("size"));
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("info", new MediaToMediaInfoField());
+      definition.addCalculatedField("big_icon", new MediaToBigIconField());
+      result.addMapping( "otherMedia", DatabaseOther.getInstance(), definition);
+
+
+      result.addMapping( "mediaFolder", DatabaseMediafolder.getInstance(), new EntityAdapterDefinition());
       result.addMapping( "imageType", DatabaseImageType.getInstance(), new EntityAdapterDefinition());
       result.addMapping( "language", DatabaseLanguage.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "mediaFolder", DatabaseMediafolder.getInstance(), new EntityAdapterDefinition());
       result.addMapping( "mediaType", DatabaseMediaType.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "internalMessage", DatabaseMessages.getInstance(), new EntityAdapterDefinition());
       result.addMapping( "topic", DatabaseTopics.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "user", DatabaseUsers.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "media", DatabaseMedia.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "uploadedMedia", DatabaseUploadedMedia.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "image", DatabaseImages.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "audio", DatabaseAudio.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "video", DatabaseVideo.getInstance(), new EntityAdapterDefinition());
-      result.addMapping( "otherMedia", DatabaseOther.getInstance(), new EntityAdapterDefinition());
+
+      definition = new EntityAdapterDefinition();
+      definition.addDBDateField("creationdate", "webdb_create", configuration.getString("Mir.DefaultTimezone"));
+      definition.addDBDateField("lastlogindate", "lastlogin", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("structuredProfile", new StructuredContentField("profile"));
+      result.addMapping( "user", DatabaseUsers.getInstance(), definition);
+
+      result.addMapping( "content_x_topic", DatabaseContentToTopics.getInstance(), new EntityAdapterDefinition());
+
+      definition = new EntityAdapterDefinition();
+      definition.addCalculatedField("to_filters",
+          new ToManyRelationField("id", "filter", "filter_group_id", "priority asc"));
+      result.addMapping("filterGroup", DatabaseFilterGroup.getInstance(), definition);
+      definition = new EntityAdapterDefinition();
+      definition.addDBDateField("lasthit", "last_hit", configuration.getString("Mir.DefaultTimezone"));
+      definition.addCalculatedField("to_filter_group",
+          new ToOneRelationField("filter_group_id", "filter_group", "id"));
+      result.addMapping("filter", DatabaseFilter.getInstance(), definition);
     }
     catch (Throwable t) {
       throw new MirLocalizerFailure(t.getMessage(), t);
@@ -208,20 +285,6 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     return result;
   }
 
-  protected class CommentToContentField implements EntityAdapterDefinition.CalculatedField {
-    public Object getValue(EntityAdapter anEntityAdapter) {
-      try {
-        return anEntityAdapter.getToOneRelation(
-                    "id="+anEntityAdapter.get("to_media"),
-                    "id",
-                    "content" );
-      }
-      catch (Throwable t) {
-        throw new RuntimeException(t.getMessage());
-      }
-    }
-  }
-
   protected class CommentToStatusField implements EntityAdapterDefinition.CalculatedField {
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
@@ -246,16 +309,16 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
         Iterator i = operations.iterator();
-        List availableOperations = new Vector();
+        List availableOperations = new ArrayList();
 
         while (i.hasNext()) {
-          MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation =
-            (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) i.next();
+          MirAdminInterfaceLocalizer.EntityOperation operation =
+            (MirAdminInterfaceLocalizer.EntityOperation) i.next();
 
           if (operation.isAvailable(anEntityAdapter)) {
             availableOperations.add(operation.getName());
           }
-        };
+        }
 
         return availableOperations;
       }
@@ -275,11 +338,9 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
         if (anEntityAdapter.get("is_html")!=null && anEntityAdapter.get("is_html").equals("1")) {
-          return anEntityAdapter.get(fieldName);
-        }
-        else {
-          return MirGlobal.localizer().producerAssistant().filterText((String) anEntityAdapter.get(fieldName));
+          return MirGlobal.localizer().producerAssistant().filterHTMLText((String) anEntityAdapter.get(fieldName));
         }
+        return MirGlobal.localizer().producerAssistant().filterNonHTMLText((String) anEntityAdapter.get(fieldName));
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -287,16 +348,16 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ExpandedField implements EntityAdapterDefinition.CalculatedField {
+  protected class StructuredContentField implements EntityAdapterDefinition.CalculatedField {
     private String expression;
 
-    public ExpandedField(String anExpression) {
+    public StructuredContentField(String anExpression) {
       expression = anExpression;
     }
 
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        return ParameterExpander.expandExpression(anEntityAdapter, expression);
+        return StructuredContentParser.parse(ParameterExpander.evaluateStringExpression(anEntityAdapter, expression));
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -304,16 +365,16 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class EvaluatedField implements EntityAdapterDefinition.CalculatedField {
+  protected class ExpandedField implements EntityAdapterDefinition.CalculatedField {
     private String expression;
 
-    public EvaluatedField(String anExpression) {
+    public ExpandedField(String anExpression) {
       expression = anExpression;
     }
 
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        return ParameterExpander.evaluateExpression(anEntityAdapter, expression);
+        return ParameterExpander.expandExpression(anEntityAdapter, expression);
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -321,14 +382,16 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToParentField implements EntityAdapterDefinition.CalculatedField {
+  protected class EvaluatedField implements EntityAdapterDefinition.CalculatedField {
+    private String expression;
+
+    public EvaluatedField(String anExpression) {
+      expression = anExpression;
+    }
+
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        logger.debug("ContentToParentField.getValue");
-        return anEntityAdapter.getToOneRelation(
-                    "id="+anEntityAdapter.get("to_content"),
-                    "id",
-                    "content" );
+        return ParameterExpander.evaluateExpression(anEntityAdapter, expression);
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -350,27 +413,47 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToLanguageField implements EntityAdapterDefinition.CalculatedField {
+  public static class MediaInfo {
+    private MediaHandler mediaHandler;
+    private Entity mediaType;
+
+    public MediaInfo(MediaHandler aHandler, Entity aMediaType) {
+      mediaHandler = aHandler;
+      mediaType = aMediaType;
+    }
+
+    public String getBigIcon() {
+      return mediaHandler.getBigIconName();
+    }
+
+    public String getSmallIcon() {
+      return mediaHandler.getTinyIconName();
+    }
+
+    public String getDescription() {
+      return mediaHandler.getDescr(mediaType);
+    }
+  }
+
+  protected static class MediaToMediaInfoField implements EntityAdapterDefinition.CalculatedField {
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        return anEntityAdapter.getToOneRelation(
-                    "id="+anEntityAdapter.get("to_language"),
-                    "id",
-                    "language" );
+        MediaHandler mediaHandler =
+            MediaHelper.getHandler(((EntityUploadedMedia) anEntityAdapter.getEntity()).getMediaType());
+
+        return new MediaInfo(mediaHandler,
+            ((EntityUploadedMedia) anEntityAdapter.getEntity()).getMediaType());
       }
       catch (Throwable t) {
-        throw new RuntimeException(t.getMessage());
+        throw new Failure(t.getMessage(), t);
       }
     }
   }
 
-  protected class ContentToArticleTypeField implements EntityAdapterDefinition.CalculatedField {
+  protected static class MediaToBigIconField implements EntityAdapterDefinition.CalculatedField {
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        return anEntityAdapter.getToOneRelation(
-                    "id="+anEntityAdapter.get("to_article_type"),
-                    "id",
-                    "articleType" );
+        return MediaHelper.getHandler(((EntityUploadedMedia) anEntityAdapter.getEntity()).getMediaType()).getBigIconName();
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -378,12 +461,24 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToCommentsField implements EntityAdapterDefinition.CalculatedField {
+  protected static class ContentToCommentsField implements EntityAdapterDefinition.CalculatedField {
+    private String extracondition;
+    private String order;
+
+    public ContentToCommentsField() {
+      this ( " and is_published='1'", "webdb_create");
+    }
+
+    public ContentToCommentsField(String anExtraCondition, String anOrder) {
+      order = anOrder;
+      extracondition = anExtraCondition;
+    }
+
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
         return anEntityAdapter.getRelation(
-                    "to_media="+anEntityAdapter.get("id")+" and is_published='1'",
-                    "webdb_create",
+                    "to_media="+anEntityAdapter.get("id")+" " + extracondition,
+                    order,
                     "comment" );
       }
       catch (Throwable t) {
@@ -392,13 +487,34 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToTopicsField implements EntityAdapterDefinition.CalculatedField {
+  protected static class ContentToTopicsField implements EntityAdapterDefinition.CalculatedField {
+    private String topicCondition;
+    private String topicOrder;
+
+    public ContentToTopicsField() {
+      this(null);
+    }
+
+    public ContentToTopicsField(String aTopicCondition) {
+      this(aTopicCondition, "title");
+    }
+
+    public ContentToTopicsField(String aTopicCondition, String aTopicOrder) {
+      topicCondition = aTopicCondition;
+      topicOrder = aTopicOrder;
+    }
+
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        return anEntityAdapter.getRelation(
-                    "exists (select * from content_x_topic where content_id="+anEntityAdapter.get("id")+" and topic_id=id)",
-                    "title",
-                    "topic" );
+        String condition = "cxt.content_id="+anEntityAdapter.get("id")+
+          " and cxt.topic_id=t.id";
+
+        if (topicCondition!=null && topicCondition.length()>0) {
+          condition = "(" + topicCondition + ") and " + condition;
+        }
+
+        return anEntityAdapter.getComplexRelation("t", Collections.singletonList("content_x_topic cxt"),
+                    condition, topicOrder, "topic" );
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -406,7 +522,7 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToMediaField implements EntityAdapterDefinition.CalculatedField {
+  protected static class ContentToMediaField implements EntityAdapterDefinition.CalculatedField {
     private String definition;
     private boolean published;
 
@@ -421,13 +537,48 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
 
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        String condition = "exists (select * from content_x_media where content_id="+anEntityAdapter.get("id")+" and media_id=id)";
+        String condition = "cxm.content_id="+ anEntityAdapter.get("id") +
+          " and cxm.media_id = m.id";
+
+        if (published) {
+          condition = "is_published='t' and " + condition;
+        }
+
+        List extraTables = new ArrayList();
+        extraTables.add("content_x_media cxm");
+
+        return anEntityAdapter.getComplexRelation("m", extraTables, condition, "id", definition);
+      }
+      catch (Throwable t) {
+        throw new RuntimeException(t.getMessage());
+      }
+    }
+  }
+
+  protected static class ContentToFirstMediaField implements EntityAdapterDefinition.CalculatedField {
+    private String definition;
+    private boolean published;
+
+    public ContentToFirstMediaField(String aDefinition, boolean anOnlyPublished) {
+      definition = aDefinition;
+      published = anOnlyPublished;
+    }
+
+    public ContentToFirstMediaField(String aDefinition) {
+      this(aDefinition, true);
+    }
+
+    public Object getValue(EntityAdapter anEntityAdapter) {
+      try {
+        String condition = "cxm.content_id="+ anEntityAdapter.get("id") +
+          " and cxm.media_id = m.id";
         if (published)
           condition = "is_published='t' and " + condition;
-        return anEntityAdapter.getRelation(
-           condition,
-          "id",
-          definition);
+
+        List extraTables = new ArrayList();
+        extraTables.add("content_x_media cxm");
+
+        return anEntityAdapter.getComplexToOneRelation("m", extraTables, condition, "id", definition);
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -435,7 +586,7 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class CommentToMediaField implements EntityAdapterDefinition.CalculatedField {
+  protected static class CommentToMediaField implements EntityAdapterDefinition.CalculatedField {
     private String definition;
     private boolean published;
 
@@ -450,13 +601,15 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
 
     public Object getValue(EntityAdapter anEntityAdapter) {
       try {
-        String condition = "exists (select * from comment_x_media where comment_id="+anEntityAdapter.get("id")+" and media_id=id)";
-        if (published)
-          condition = "is_published='t' and " + condition;
-        return anEntityAdapter.getRelation(
-           condition,
-          "id",
-          definition);
+
+        String condition = "cxm.comment_id = " + anEntityAdapter.get("id") + " and cxm.media_id = m.id";
+
+        if (published) {
+           condition = "is_published='t' and " + condition;
+        }
+
+        return anEntityAdapter.getComplexRelation("m", Collections.singletonList("comment_x_media cxm"),
+            condition, "id", definition);
       }
       catch (Throwable t) {
         throw new RuntimeException(t.getMessage());
@@ -464,54 +617,41 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentToIconField implements EntityAdapterDefinition.CalculatedField {
+  protected static class ContentToIconField implements EntityAdapterDefinition.CalculatedField {
     public Object getValue(EntityAdapter anEntityAdapter) {
-      EntityAdapter media;
-      Entity mediaType;
-      RewindableIterator iterator;
-      Map result;
-      MirMedia mediaHandler;
       String tinyIcon;
       String iconAlt;
 
       try {
-        iterator = (RewindableIterator) (anEntityAdapter.get("to_uploaded_media"));
-        iterator.rewind();
-
         tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyText");
         iconAlt = "Text";
 
-        if (iterator.hasNext()) {
-          media = (EntityAdapter) iterator.next();
+        Iterator iterator = anEntityAdapter.getIterator("to_media_video");
+        if (!iterator.hasNext()) {
+          iterator = anEntityAdapter.getIterator("to_media_audio");
+        }
+        if (!iterator.hasNext()) {
+          iterator = anEntityAdapter.getIterator("to_media_images");
+        }
+        if (!iterator.hasNext()) {
+          iterator = anEntityAdapter.getIterator("to_media_other");
+        }
 
-          mediaType = ((EntityUploadedMedia) (media.getEntity())).getMediaType();
-          mediaHandler = MediaHelper.getHandler( mediaType );
+        if (iterator.hasNext()) {
+          EntityAdapter media = (EntityAdapter) iterator.next();
 
-          if (mediaHandler.isVideo()) {
-            tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyVideo");
-            iconAlt = "Video";
-          }
-          else if (mediaHandler.isAudio()) {
-            tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyAudio");
-            iconAlt = "Audio";
-          }
-          else if (mediaHandler.isImage()) {
-            tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyImage");
-            iconAlt = "Image";
-          }
-          else {
-            tinyIcon = mediaHandler.getTinyIconName();
-            iconAlt = mediaHandler.getIconAltName();
-          }
+          Entity mediaType = ((EntityUploadedMedia) (media.getEntity())).getMediaType();
+          MediaHandler mediaHandler = MediaHelper.getHandler(mediaType);
 
+          tinyIcon = mediaHandler.getTinyIconName();
+          iconAlt = mediaHandler.getIconAltName();
         }
       }
       catch (Throwable t) {
-        logger.error("ContentToIconField: " +t.getMessage());
-        throw new RuntimeException(t.getMessage());
+        throw new Failure(t.getMessage(), t);
       }
 
-      result = new HashMap();
+      Map result = new HashMap();
       result.put("tiny_icon", MirGlobal.config().getString("Producer.ImageRoot") + "/" + tinyIcon);
       result.put("icon_alt", iconAlt);
 
@@ -519,12 +659,10 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
     }
   }
 
-  protected class ContentCommentCountField implements EntityAdapterDefinition.CalculatedField {
+  protected static class ContentCommentCountField implements EntityAdapterDefinition.CalculatedField {
     private String extraCondition;
 
     public ContentCommentCountField(String anExtraCondition) {
-      super();
-
       extraCondition = anExtraCondition;
     }
 
@@ -539,4 +677,216 @@ public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
       }
     }
   }
+
+  protected static class HumanReadableSizeField implements EntityAdapterDefinition.CalculatedField {
+      private String fieldName;
+
+      public HumanReadableSizeField(String aFieldName) {
+        fieldName= aFieldName;
+      }
+
+      public Object getValue(EntityAdapter anEntityAdapter) {
+        try {
+          String size = (String) anEntityAdapter.get(fieldName);
+          if (size!=null) {
+            return NumberUtils.humanReadableSize(Double.parseDouble(size));
+          }
+          return "";
+        }
+        catch (Throwable t) {
+          throw new RuntimeException(t.getMessage());
+        }
+      }
+    }
+
+
+  protected class ContentMediaCountField implements EntityAdapterDefinition.CalculatedField {
+    private String table;
+    private boolean published;
+
+    public ContentMediaCountField(String aTable, boolean anOnlyPublished) {
+      table = aTable;
+      published = anOnlyPublished;
+    }
+
+    public ContentMediaCountField(String aTable) {
+      this(aTable, true);
+    }
+
+    public Object getValue(EntityAdapter anEntityAdapter) {
+      try {
+        ArrayList extraTable = new ArrayList();
+        extraTable.add(table+" m");
+        String selectSql = "cxm.media_id=m.id and cxm.content_id="+
+          anEntityAdapter.get("id");
+        if (published)
+          selectSql+= " and m.is_published='t'";
+
+        return Integer.toString(
+            DatabaseContentToMedia.getInstance().getSize(
+              "cxm", extraTable, selectSql));
+      }
+      catch (Throwable t) {
+        throw new RuntimeException(t.getMessage());
+      }
+    }
+  }
+
+  protected class ContentToIsLockedField implements EntityAdapterDefinition.CalculatedField {
+    private ModuleContent contentModule;
+
+    public ContentToIsLockedField() {
+      contentModule = new ModuleContent();
+    }
+
+    public Object getValue(EntityAdapter anEntityAdapter) {
+      try {
+        return new Boolean(contentModule.queryArticleLock(anEntityAdapter.getEntity().getId())!=null);
+      }
+      catch (Throwable t) {
+        throw new RuntimeException(t.getMessage());
+      }
+    }
+  }
+    protected class ContentIsOriginalField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) throws MirLocalizerFailure {
+      try {
+
+        //ML: add check on article type
+        boolean result = (anEntityAdapter.get("parent")==null);
+
+        return new Boolean(result);
+      }
+      catch (Throwable t) {
+        throw new MirLocalizerFailure(t);
+      }
+    }
+  }
+
+  protected class ContentToOriginalField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) throws MirLocalizerFailure {
+      try {
+        if (anEntityAdapter.get("parent")!=null)
+          return anEntityAdapter.get("parent");
+        return anEntityAdapter;
+      }
+      catch (Throwable t) {
+        throw new MirLocalizerFailure(t);
+      }
+    }
+  }
+
+  protected class ContentToTranslationsField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) {
+      try {
+        return anEntityAdapter.getRelation(
+                    "is_published='t' and to_content="+anEntityAdapter.get("id"),
+                    "id",
+                    "content" );
+      }
+      catch (Throwable t) {
+        throw new RuntimeException(t.getMessage());
+      }
+    }
+  }
+
+  protected class ContentToLanguageNameField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) throws MirLocalizerFailure {
+      try {
+        String result = "";
+        EntityAdapter language = (EntityAdapter) anEntityAdapter.get("language");
+        if (language != null) {
+          if (language.get("code").equals("ot")) {
+            result = ((String) anEntityAdapter.get("subtitle")).trim();
+            if (result == null || result.equals(""))
+              result = (String) language.get("name");
+          } else {
+            result = (String) language.get("name");
+          }
+        }
+
+        return result;
+      }
+      catch (Throwable t) {
+        throw new MirLocalizerFailure(t);
+      }
+    }
+  }
+
+  protected class ContentToTranslationFunction implements Generator.Function {
+    private EntityAdapter target;
+    private String targetId;
+    private String targetLanguageId;
+
+    public ContentToTranslationFunction(EntityAdapter aTarget) {
+      target = aTarget;
+      targetId = (String) target.get("id");
+      targetLanguageId = (String) target.get("to_language");
+    }
+
+    public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
+      if (aParameters.size()!=1 || !(aParameters.get(0) instanceof String))
+        throw new GeneratorExc("1 string parameter expected");
+
+      try {
+        String language = (String) aParameters.get(0);
+        String languageId = languageModule.languageIdForCode(language);
+        Object result = null;
+
+        if (languageId != null && !targetLanguageId.equals(languageId)) {
+          result = target.getToOneRelation(
+              "is_published='t' and to_content=" + targetId + " and to_language='" + JDBCStringRoutines.escapeStringLiteral(languageId) + "'",
+              "id", "content");
+        }
+
+        if (result == null)
+          result = target;
+
+        return result;
+      }
+      catch (Throwable t) {
+        t.printStackTrace(System.out);
+        throw new GeneratorFailure(t);
+      }
+    }
+  }
+
+  protected class ContentToTranslationField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) throws MirLocalizerFailure {
+      try {
+        return new ContentToTranslationFunction((EntityAdapter) anEntityAdapter.get("to_original"));
+      }
+      catch (Throwable t) {
+        throw new MirLocalizerFailure(t);
+      }
+    }
+  }
+
+  protected static class CommentStatusCountField implements EntityAdapterDefinition.CalculatedField {
+    public Object getValue(EntityAdapter anEntityAdapter) {
+      return new CommentStatusCountField2(anEntityAdapter);
+    }
+  }
+
+  public static class CommentStatusCountField2 {
+    private final EntityAdapter comment;
+    private final ModuleCommentStatus mcs = new ModuleCommentStatus();
+
+    CommentStatusCountField2(EntityAdapter anEntityAdapter) {
+      comment = anEntityAdapter;
+    }
+
+    public String get(String aCommentStatus) {
+      try {
+        return Integer.toString(
+            DatabaseComment.getInstance().getSize(
+                  "to_media=" + comment.get("id") + " and is_published='1' and to_comment_status = " +
+                      mcs.commentStatusIdForName(aCommentStatus)));
+      }
+      catch (Exception e) {
+        return "0";
+      }
+    }
+  }
 }
+