source: trunk/sources/HeuristicLab.Services.Hive.DataAccess/3.3/Daos/PluginDao.cs @ 12914

Last change on this file since 12914 was 12914, checked in by ascheibe, 4 years ago

#2388 fixed plugin queries for maintenance page

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Data.Linq;
25using System.Linq;
26
27namespace HeuristicLab.Services.Hive.DataAccess.Daos {
28  public class PluginDao : GenericDao<Guid, Plugin> {
29    public PluginDao(DataContext dataContext) : base(dataContext) { }
30
31    public override Plugin GetById(Guid id) {
32      return GetByIdQuery(DataContext, id);
33    }
34
35    public IEnumerable<Plugin> GetByHash(byte[] hash) {
36      return GetByHashQuery(DataContext).Where(x => x.Hash.SequenceEqual(hash));
37    }
38
39    public int DeleteUnusedPlugins() {
40      return DataContext.ExecuteCommand(DeleteUnusedPluginsStringQuery);
41    }
42
43    #region Compiled queries
44    private static readonly Func<DataContext, Guid, Plugin> GetByIdQuery =
45      CompiledQuery.Compile((DataContext db, Guid pluginId) =>
46        (from plugin in db.GetTable<Plugin>()
47         where plugin.PluginId == pluginId
48         select plugin).SingleOrDefault());
49
50    private static readonly Func<DataContext, IEnumerable<Plugin>> GetByHashQuery =
51      CompiledQuery.Compile((DataContext db) =>
52        (from plugin in db.GetTable<Plugin>()
53         where plugin.Hash != null
54         select plugin));
55    #endregion
56
57    #region String queries
58    private const string DeleteUnusedPluginsStringQuery = @"
59     DELETE FROM [Plugin] WHERE PluginId IN (
60     SELECT p.[PluginId] FROM [Plugin] p
61     LEFT JOIN [RequiredPlugins] rp
62     ON rp.PluginId = p.PluginId
63     WHERE rp.PluginId IS NULL)";
64    #endregion
65  }
66}
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