1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Data.Linq;
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25 | using System.Linq;
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26 |
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27 | namespace HeuristicLab.Services.Hive.DataAccess.Daos {
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28 | public class ResourcePermissionDao : GenericDao<Guid, ResourcePermission> {
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29 |
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30 | public ResourcePermissionDao(DataContext dataContext) : base(dataContext) { }
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31 |
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32 | public override ResourcePermission GetById(Guid id) {
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33 | throw new NotImplementedException();
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34 | }
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35 |
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36 | public IEnumerable<Guid> GetByGrantedUserId(IEnumerable<Guid> grantedUserId) {
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37 | string paramIds = string.Join(",", grantedUserId.Select(x => string.Format("'{0}'", x)));
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38 | if (!string.IsNullOrWhiteSpace(paramIds)) {
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39 | string query = string.Format(GetGrantedResourcesQuery, paramIds);
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40 | return DataContext.ExecuteQuery<Guid>(query);
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41 | }
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42 | return Enumerable.Empty<Guid>();
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43 | }
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44 |
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45 | #region Compiled queries
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46 | private static readonly Func<DataContext, Guid, IEnumerable<ResourcePermission>> GetByResourceIdQuery =
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47 | CompiledQuery.Compile((DataContext db, Guid resourceId) =>
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48 | from resourcePermission in db.GetTable<ResourcePermission>()
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49 | where resourcePermission.ResourceId == resourceId
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50 | select resourcePermission);
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51 | #endregion
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52 |
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53 | #region String queries
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54 | private const string GetGrantedResourcesQuery = @"
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55 | WITH rtree AS
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56 | (
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57 | SELECT ResourceId, ParentResourceId
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58 | FROM [dbo].Resource
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59 | UNION ALL
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60 | SELECT rt.ResourceId, r.ParentResourceId
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61 | FROM [dbo].Resource r
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62 | JOIN rtree rt ON rt.ParentResourceId = r.ResourceId AND r.ParentResourceId <> r.ResourceId AND rt.ParentResourceId <> rt.ResourceId
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63 | )
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64 | SELECT DISTINCT rtree.ResourceId FROM rtree, ResourcePermission rp
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65 | WHERE rtree.ParentResourceId = rp.ResourceId
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66 | AND rp.GrantedUserId IN ({0})
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67 | UNION ALL
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68 | SELECT rp.ResourceId
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69 | FROM ResourcePermission rp
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70 | WHERE rp.GrantedUserId IN ({0})
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71 | ;";
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72 |
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73 | #endregion
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74 | }
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75 | }
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