Samples/MindDump/Castle.Applications.MindDump/Dao/BlogDao.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.Applications.MindDump.Dao
  16 {
  17         using System;
  18         using System.Collections;
  19
  20         using Castle.Applications.MindDump.Model;
  21         using Castle.Facilities.NHibernateIntegration;
  22
  23         using NHibernate;
  24
  25         public class BlogDao
  26         {
  27                 private readonly ISessionManager sessionManager;
  28
  29                 public BlogDao(ISessionManager sessionManager)
  30                 {
  31                         this.sessionManager = sessionManager;
  32                 }
  33
  34                 public Blog Create(Blog blog)
  35                 {
  36                         using(ISession session = sessionManager.OpenSession())
  37                         {
  38                                 if (blog.Posts == null)
  39                                 {
  40                                         blog.Posts = new ArrayList();
  41                                 }
  42
  43                                 session.Save(blog);
  44                         }
  45
  46                         return blog;
  47                 }
  48
  49                 public void Update(Blog blog)
  50                 {
  51                         using(ISession session = sessionManager.OpenSession())
  52                         {
  53                                 session.Update(blog);
  54                         }
  55                 }
  56
  57                 /// <summary>
  58                 /// Usually will be invoked only by the
  59                 /// test cases
  60                 /// </summary>
  61                 public void DeleteAll()
  62                 {
  63                         using(ISession session = sessionManager.OpenSession())
  64                         {
  65                                 session.Delete("from Blog");
  66                         }
  67                 }
  68
  69                 public IList Find()
  70                 {
  71                         using(ISession session = sessionManager.OpenSession())
  72                         {
  73                                 return session.Find("from Blog");
  74                         }
  75                 }
  76
  77                 public Blog Find(String blogName)
  78                 {
  79                         using(ISession session = sessionManager.OpenSession())
  80                         {
  81                                 IList list = session.Find(
  82                                         "from Blog as a where a.Name=:name", blogName, NHibernateUtil.String);
  83
  84                                 if (list.Count == 1)
  85                                 {
  86                                         return list[0] as Blog;
  87                                 }
  88                                 else
  89                                 {
  90                                         return null;
  91                                 }
  92                         }
  93                 }
  94
  95                 public IList FindLatest(int howMany)
  96                 {
  97                         using(ISession session = sessionManager.OpenSession())
  98                         {
  99                                 IList list = session.Find("from Blog order by id desc");
 100
 101                                 if (list.Count > howMany)
 102                                 {
 103                                         list = ListUtil.Limit(howMany, list);
 104                                 }
 105
 106                                 return list;
 107                         }
 108                 }
 109         }
 110 }