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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "MySQLIndex.h"
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23
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24 #include "../../Framework/Plugins/GlobalProperties.h"
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25 #include "../../Framework/MySQL/MySQLDatabase.h"
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26 #include "../../Framework/MySQL/MySQLTransaction.h"
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27
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28 #include <EmbeddedResources.h> // Auto-generated file
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29
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30 #include <Core/Logging.h>
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31 #include <Core/OrthancException.h>
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32
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33 #include <ctype.h>
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34
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35 namespace OrthancDatabases
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36 {
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37 IDatabase* MySQLIndex::OpenInternal()
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38 {
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39 uint32_t expectedVersion = 6;
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40 if (context_)
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41 {
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42 expectedVersion = OrthancPluginGetExpectedDatabaseVersion(context_);
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43 }
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44 else
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45 {
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46 // This case only occurs during unit testing
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47 expectedVersion = 6;
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48 }
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49
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50 // Check the expected version of the database
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51 if (expectedVersion != 6)
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52 {
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53 LOG(ERROR) << "This database plugin is incompatible with your version of Orthanc "
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54 << "expecting the DB schema version " << expectedVersion
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55 << ", but this plugin is only compatible with version 6";
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56 throw Orthanc::OrthancException(Orthanc::ErrorCode_Plugin);
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57 }
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58
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59 if (parameters_.GetDatabase().empty())
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60 {
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61 LOG(ERROR) << "Empty database name";
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62 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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63 }
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64
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65 for (size_t i = 0; i < parameters_.GetDatabase().length(); i++)
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66 {
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67 if (!isalnum(parameters_.GetDatabase() [i]))
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68 {
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69 LOG(ERROR) << "Only alphanumeric characters are allowed in a "
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70 << "MySQL database name: \"" << parameters_.GetDatabase() << "\"";
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71 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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72 }
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73 }
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74
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75 if (clearAll_)
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76 {
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77 MySQLParameters p = parameters_;
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78 const std::string database = p.GetDatabase();
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79 p.SetDatabase("");
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80
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81 MySQLDatabase db(p);
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82 db.Open();
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83
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84 MySQLTransaction t(db);
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85 db.Execute("DROP DATABASE IF EXISTS " + database);
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86 db.Execute("CREATE DATABASE " + database);
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87 t.Commit();
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88 }
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89
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90 std::auto_ptr<MySQLDatabase> db(new MySQLDatabase(parameters_));
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91
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92 db->Open();
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93 db->Execute("ALTER DATABASE " + parameters_.GetDatabase() +
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94 " CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
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95 db->Execute("SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE");
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96
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97 {
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98 MySQLTransaction t(*db);
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99
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100 if (!db->DoesTableExist(t, "Resources"))
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101 {
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102 std::string query;
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103
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104 Orthanc::EmbeddedResources::GetFileResource
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105 (query, Orthanc::EmbeddedResources::MYSQL_PREPARE_INDEX);
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106 db->Execute(query);
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107
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108 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion, expectedVersion);
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109 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, 1);
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110 }
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111
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112 t.Commit();
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113 }
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114
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115 {
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116 MySQLTransaction t(*db);
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117
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118 if (!db->DoesTableExist(t, "Resources"))
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119 {
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120 LOG(ERROR) << "Corrupted MySQL database";
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121 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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122 }
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123
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124 int version = 0;
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125 if (!LookupGlobalIntegerProperty(version, *db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion) ||
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126 version != 6)
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127 {
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128 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema version: " << version;
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129 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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130 }
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131
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132 int revision;
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133 if (!LookupGlobalIntegerProperty(revision, *db, t, Orthanc::GlobalProperty_DatabasePatchLevel))
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134 {
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135 revision = 1;
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136 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, revision);
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137 }
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138
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139 if (revision != 1)
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140 {
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141 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema revision: " << revision;
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142 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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143 }
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144
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145 t.Rollback();
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146 }
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147
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148 return db.release();
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149 }
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150
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151
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152 MySQLIndex::MySQLIndex(const MySQLParameters& parameters) :
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153 IndexBackend(new Factory(*this)),
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154 context_(NULL),
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155 parameters_(parameters),
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156 clearAll_(false)
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157 {
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158 }
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159
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160
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161 int64_t MySQLIndex::CreateResource(const char* publicId,
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162 OrthancPluginResourceType type)
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163 {
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164 {
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165 DatabaseManager::CachedStatement statement(
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166 STATEMENT_FROM_HERE, GetManager(),
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167 "INSERT INTO Resources VALUES(${}, ${type}, ${id}, NULL)");
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168
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169 statement.SetParameterType("id", ValueType_Utf8String);
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170 statement.SetParameterType("type", ValueType_Integer64);
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171
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172 Dictionary args;
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173 args.SetUtf8Value("id", publicId);
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174 args.SetIntegerValue("type", static_cast<int>(type));
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175
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176 statement.Execute(args);
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177 }
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178
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179 {
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180 DatabaseManager::CachedStatement statement(
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181 STATEMENT_FROM_HERE, GetManager(),
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182 "SELECT LAST_INSERT_ID()");
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183
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184 statement.Execute();
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185
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186 return ReadInteger64(statement, 0);
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187 }
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188 }
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189
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190
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191 void MySQLIndex::DeleteResource(int64_t id)
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192 {
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193 ClearDeletedFiles();
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194
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195 // Recursive exploration of resources to be deleted, from the "id"
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196 // resource to the top of the tree of resources
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197
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198 bool done = false;
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199
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200 while (!done)
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201 {
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202 int64_t parentId;
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203
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204 {
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205 DatabaseManager::CachedStatement lookupSiblings(
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206 STATEMENT_FROM_HERE, GetManager(),
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207 "SELECT parentId FROM Resources "
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208 "WHERE parentId = (SELECT parentId FROM Resources WHERE internalId=${id});");
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209
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210 lookupSiblings.SetParameterType("id", ValueType_Integer64);
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211
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212 Dictionary args;
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213 args.SetIntegerValue("id", id);
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214
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215 lookupSiblings.Execute(args);
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216
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217 if (lookupSiblings.IsDone())
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218 {
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219 // "id" is a root node
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220 done = true;
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221 }
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222 else
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223 {
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224 parentId = ReadInteger64(lookupSiblings, 0);
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225 lookupSiblings.Next();
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226
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227 if (lookupSiblings.IsDone())
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228 {
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229 // "id" has no sibling node, recursively remove
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230 done = false;
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231 id = parentId;
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232 }
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233 else
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234 {
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235 // "id" has at least one sibling node: the parent node is the remaining ancestor
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236 done = true;
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237
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238 DatabaseManager::CachedStatement parent(
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239 STATEMENT_FROM_HERE, GetManager(),
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240 "SELECT publicId, resourceType FROM Resources WHERE internalId=${id};");
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241
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242 parent.SetParameterType("id", ValueType_Integer64);
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243
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244 Dictionary args;
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245 args.SetIntegerValue("id", parentId);
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246
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247 parent.Execute(args);
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248
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249 GetOutput().SignalRemainingAncestor(
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250 ReadString(parent, 0),
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251 static_cast<OrthancPluginResourceType>(ReadInteger32(parent, 1)));
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252 }
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253 }
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254 }
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255 }
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256
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257 {
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258 DatabaseManager::CachedStatement deleteHierarchy(
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259 STATEMENT_FROM_HERE, GetManager(),
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260 "DELETE FROM Resources WHERE internalId IN (SELECT * FROM (SELECT internalId FROM Resources WHERE internalId=${id} OR parentId=${id} OR parentId IN (SELECT internalId FROM Resources WHERE parentId=${id}) OR parentId IN (SELECT internalId FROM Resources WHERE parentId IN (SELECT internalId FROM Resources WHERE parentId=${id}))) as t);");
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261
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262 deleteHierarchy.SetParameterType("id", ValueType_Integer64);
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263
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264 Dictionary args;
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265 args.SetIntegerValue("id", id);
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266
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267 deleteHierarchy.Execute(args);
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268 }
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269
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270 SignalDeletedFiles();
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271 }
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272 }
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