fixing scaling images -> nullpointer, patch by yossarian

[mir.git] / source / mircoders / storage / DatabaseUploadedMedia.java

diff --git a/source/mircoders/storage/DatabaseUploadedMedia.java b/source/mircoders/storage/DatabaseUploadedMedia.java
index dc3c8ab..97294fb 100755 (executable)
--- a/source/mircoders/storage/DatabaseUploadedMedia.java
+++ b/source/mircoders/storage/DatabaseUploadedMedia.java
@@ -1,68 +1,85 @@
-package mircoders.storage;
-
-import java.lang.*;
-import java.sql.*;
-import java.io.*;
-import java.util.*;
-
-import freemarker.template.*;
-
-import mir.storage.*;
-import mir.entity.*;
-import mir.misc.*;
-
-import mircoders.entity.*;
-
-/**
- * <b>this class implements the access to the content-table</b>
+/*
+ * 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  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.
  */
 
-public class DatabaseUploadedMedia extends Database implements StorageObject {
+package mircoders.storage;
 
-  private static DatabaseUploadedMedia  instance;
-  private static EntityRelation         relationMediaType;
+import java.util.Iterator;
 
-  // Contructors / Singleton
+import mir.entity.Entity;
+import mir.entity.EntityBrowser;
+import mir.log.LoggerWrapper;
+import mir.storage.Database;
+import mir.storage.DatabaseFailure;
+import mircoders.entity.EntityUploadedMedia;
 
-  public static DatabaseUploadedMedia getInstance()
-    throws StorageObjectException {
+public class DatabaseUploadedMedia extends Database  {
+  private static DatabaseUploadedMedia instance;
 
+  public static synchronized DatabaseUploadedMedia getInstance() {
     if (instance == null ) {
       instance = new DatabaseUploadedMedia();
-      instance.myselfDatabase = instance;
     }
+
     return instance;
   }
 
-  private DatabaseUploadedMedia()
-    throws StorageObjectException {
+  private DatabaseUploadedMedia() {
+    logger = new LoggerWrapper("Database.UploadedMedia");
 
-    super();
-    this.theTable="uploaded_media";
-    this.theCoreTable="media";
-    relationMediaType = new EntityRelation("id", "to_media_type", DatabaseMediaType.getInstance(), EntityRelation.TO_ONE);
-    try { this.theEntityClass = Class.forName("mircoders.entity.EntityContent"); }
-    catch (Exception e) { throw new StorageObjectException(e.toString()); }
+    mainTable="uploaded_media";
+    entityClass = EntityUploadedMedia.class;
   }
 
-  // methods
-
 
   /**
-   * returns the comments that belong to the article (via entityrelation)
+   * returns the media_type that belongs to the media item (via entityrelation)
    * where db-flag is_published is true
    */
-  public SimpleList getMediaType(EntityUploadedMedia ent) {
-    SimpleList comments=null;
+  public Entity getMediaType(Entity aMedia) throws DatabaseFailure {
+    Entity type=null;
     try {
-      comments = relationMediaType.getManyAsSimpleList(ent,"webdb_create","is_published='1'");
+      Iterator i = new EntityBrowser(DatabaseMediaType.getInstance(), aMedia.getFieldValue("to_media_type") + " = id" , "id", 1);
+
+      if (i.hasNext()) {
+        type = (Entity) i.next();
+      }
     }
-    catch (StorageObjectException e) {
-      theLog.printError("DatabaseUploadedMedia :: failed to get media_type");
+    catch (Throwable t) {
+      logger.error("DatabaseUploadedMedia :: failed to get media_type: " + t.getMessage());
+
+      throw new DatabaseFailure("DatabaseUploadedMedia :: failed to get media_type", t);
     }
-    return comments;
+    return type;
   }
 
+  protected String getPrimaryKeySequence() {
+    return "media_id_seq";
+  }
 }