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source: branches/HiveProjectManagement/HeuristicLab.Services.Hive.DataAccess/3.3/Daos/ResourceDao.cs @ 15497

Last change on this file since 15497 was 15497, checked in by jzenisek, 5 years ago

#2839 worked on permission check at AddTask

File size: 3.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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 ResourceDao : GenericDao<Guid, Resource> {
29    public ResourceDao(DataContext dataContext) : base(dataContext) { }
30
31    public override Resource GetById(Guid id) {
32      return GetByIdQuery(DataContext, id);
33    }
34
35    public Resource GetByName(string name) {
36      return GetByNameQuery(DataContext, name);
37    }
38
39    public IQueryable<Resource> GetResourcesWithValidOwner() {
40      return Table.Where(x => x.OwnerUserId != null);
41    }
42
43    public IEnumerable<Guid> GetResourceIdsByParentId(Guid id) {
44      return DataContext.ExecuteQuery<Guid>(GetResourceIdsByParentIdQuery, id);
45    }
46
47    public IEnumerable<Resource> GetResourcesByParentId(Guid id) {
48      return DataContext.ExecuteQuery<Resource>(GetResourcesByParentIdQuery, id);
49    }
50
51    #region Compiled queries
52    private static readonly Func<DataContext, Guid, Resource> GetByIdQuery =
53      CompiledQuery.Compile((DataContext db, Guid resourceId) =>
54        (from resource in db.GetTable<Resource>()
55         where resource.ResourceId == resourceId
56         select resource).SingleOrDefault());
57
58    private static readonly Func<DataContext, string, Resource> GetByNameQuery =
59     CompiledQuery.Compile((DataContext db, string name) =>
60       (from resource in db.GetTable<Resource>()
61        where resource.Name == name
62        select resource).FirstOrDefault());
63    #endregion
64
65    #region String queries
66    private const string GetResourcesByParentIdQuery = @"
67      WITH rtree AS
68      (
69        SELECT ResourceId, ParentResourceId
70        FROM [Resource]
71        UNION ALL
72        SELECT rt.ResourceId, r.ParentResourceId
73        FROM [Resource] r
74        JOIN rtree rt ON rt.ParentResourceId = r.ResourceId AND r.ParentResourceId <> r.ResourceId AND rt.ParentResourceId <> rt.ResourceId
75      )
76      SELECT DISTINCT rtree.ResourceId
77      FROM rtree
78      WHERE rtree.ParentResourceId = ({0})
79    ";
80    private const string GetResourceIdsByParentIdQuery = @"
81      WITH rtree AS
82      (
83        SELECT ResourceId, ParentResourceId
84        FROM [Resource]
85        UNION ALL
86        SELECT rt.ResourceId, r.ParentResourceId
87        FROM [Resource] r
88        JOIN rtree rt ON rt.ParentResourceId = r.ResourceId AND r.ParentResourceId <> r.ResourceId AND rt.ParentResourceId <> rt.ResourceId
89      )
90      SELECT DISTINCT res.*
91      FROM rtree, [Resource] res
92      WHERE rtree.ParentResourceId = ({0})
93      AND rtree.ResourceId = res.ResourceId
94    ";
95    #endregion
96  }
97}
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