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annotate OrthancServer/Search/ISqlLookupFormatter.cpp @ 3078:147497152ce3 db-changes

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fix
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 03 Jan 2019 12:47:17 +0100
parents 5ebd2ef5e7ae
children 65e2bfa953ef
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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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5ebd2ef5e7ae preparing for 2019
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5 * Copyright (C) 2017-2019 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../PrecompiledHeadersServer.h"
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35 #include "ISqlLookupFormatter.h"
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36
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37 #include "../../Core/OrthancException.h"
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38
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39 namespace Orthanc
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40 {
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41 static std::string FormatLevel(ResourceType level)
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42 {
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43 switch (level)
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44 {
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45 case ResourceType_Patient:
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46 return "patients";
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47
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48 case ResourceType_Study:
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49 return "studies";
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50
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51 case ResourceType_Series:
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52 return "series";
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53
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54 case ResourceType_Instance:
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55 return "instances";
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56
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57 default:
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58 throw OrthancException(ErrorCode_InternalError);
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59 }
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60 }
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61
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63 static bool FormatComparison(std::string& target,
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64 ISqlLookupFormatter& formatter,
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65 const DatabaseConstraint& constraint,
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66 size_t index)
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67 {
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68 std::string tag = "t" + boost::lexical_cast<std::string>(index);
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69
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70 std::string comparison;
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71
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72 switch (constraint.GetConstraintType())
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73 {
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74 case ConstraintType_Equal:
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75 case ConstraintType_SmallerOrEqual:
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76 case ConstraintType_GreaterOrEqual:
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77 {
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78 std::string op;
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79 switch (constraint.GetConstraintType())
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80 {
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81 case ConstraintType_Equal:
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82 op = "=";
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83 break;
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84
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85 case ConstraintType_SmallerOrEqual:
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86 op = "<=";
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87 break;
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88
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89 case ConstraintType_GreaterOrEqual:
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90 op = ">=";
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91 break;
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92
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93 default:
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94 throw OrthancException(ErrorCode_InternalError);
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95 }
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96
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97 std::string parameter = formatter.GenerateParameter(constraint.GetSingleValue());
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98
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99 if (constraint.IsCaseSensitive())
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100 {
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101 comparison = tag + ".value " + op + " " + parameter;
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102 }
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103 else
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104 {
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105 comparison = "lower(" + tag + ".value) " + op + " lower(" + parameter + ")";
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106 }
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107
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108 break;
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109 }
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110
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111 case ConstraintType_List:
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112 {
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113 for (size_t i = 0; i < constraint.GetValuesCount(); i++)
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114 {
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115 if (!comparison.empty())
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116 {
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117 comparison += ", ";
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118 }
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119
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120 std::string parameter = formatter.GenerateParameter(constraint.GetValue(i));
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121
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122 if (constraint.IsCaseSensitive())
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123 {
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124 comparison += parameter;
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125 }
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126 else
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127 {
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128 comparison += "lower(" + parameter + ")";
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129 }
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130 }
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131
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132 if (constraint.IsCaseSensitive())
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133 {
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134 comparison = tag + ".value IN (" + comparison + ")";
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135 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
136 else
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Sebastien Jodogne <s.jodogne@gmail.com>
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137 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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138 comparison = "lower(" + tag + ".value) IN (" + comparison + ")";
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139 }
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140
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141 break;
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diff changeset
142 }
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143
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144 case ConstraintType_Wildcard:
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145 {
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146 const std::string value = constraint.GetSingleValue();
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147
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148 if (value == "*")
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149 {
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150 if (!constraint.IsMandatory())
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151 {
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152 // Universal constraint on an optional tag, ignore it
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153 return false;
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154 }
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155 }
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156 else
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157 {
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158 std::string escaped;
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159 escaped.reserve(value.size());
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160
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161 for (size_t i = 0; i < value.size(); i++)
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162 {
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163 if (value[i] == '*')
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164 {
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165 escaped += "%";
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166 }
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167 else if (value[i] == '?')
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168 {
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169 escaped += "_";
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170 }
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171 else if (value[i] == '%')
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172 {
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173 escaped += "\\%";
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174 }
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175 else if (value[i] == '_')
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176 {
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177 escaped += "\\_";
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178 }
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179 else if (value[i] == '\\')
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180 {
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181 escaped += "\\\\";
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182 }
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183 else
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parents:
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184 {
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185 escaped += value[i];
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186 }
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parents:
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187 }
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188
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189 std::string parameter = formatter.GenerateParameter(escaped);
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190
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191 if (constraint.IsCaseSensitive())
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192 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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193 comparison = tag + ".value LIKE " + parameter + " ESCAPE '\\'";
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194 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
195 else
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
196 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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197 comparison = "lower(" + tag + ".value) LIKE lower(" + parameter + ") ESCAPE '\\'";
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198 }
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parents:
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199 }
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parents:
diff changeset
200
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
201 break;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
202 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
203
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
204 default:
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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diff changeset
205 return false;
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parents:
diff changeset
206 }
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parents:
diff changeset
207
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
208 if (constraint.IsMandatory())
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diff changeset
209 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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diff changeset
210 target = comparison;
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diff changeset
211 }
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parents:
diff changeset
212 else if (comparison.empty())
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diff changeset
213 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
214 target = tag + ".value IS NULL";
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parents:
diff changeset
215 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
216 else
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
217 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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diff changeset
218 target = tag + ".value IS NULL OR " + comparison;
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parents:
diff changeset
219 }
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parents:
diff changeset
220
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
221 return true;
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
222 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
223
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
224
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
225 static void FormatJoin(std::string& target,
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diff changeset
226 const DatabaseConstraint& constraint,
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diff changeset
227 size_t index)
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parents:
diff changeset
228 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
229 std::string tag = "t" + boost::lexical_cast<std::string>(index);
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
230
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
231 if (constraint.IsMandatory())
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parents:
diff changeset
232 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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diff changeset
233 target = " INNER JOIN ";
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parents:
diff changeset
234 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235 else
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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diff changeset
237 target = " LEFT JOIN ";
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parents:
diff changeset
238 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
240 if (constraint.IsIdentifier())
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
241 {
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
242 target += "DicomIdentifiers ";
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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parents:
diff changeset
243 }
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
244 else
6faf575ba9cc refactoring: class ISqlLookupFormatter to be used in orthanc-databases
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245 {
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246 target += "MainDicomTags ";
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247 }
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248
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249 target += (tag + " ON " + tag + ".id = " + FormatLevel(constraint.GetLevel()) +
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250 ".internalId AND " + tag + ".tagGroup = " +
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251 boost::lexical_cast<std::string>(constraint.GetTag().GetGroup()) +
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252 " AND " + tag + ".tagElement = " +
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253 boost::lexical_cast<std::string>(constraint.GetTag().GetElement()));
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254 }
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255
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256
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257 void ISqlLookupFormatter::Apply(std::string& sql,
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258 ISqlLookupFormatter& formatter,
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259 const std::vector<DatabaseConstraint>& lookup,
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260 ResourceType queryLevel,
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261 size_t limit)
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262 {
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263 assert(ResourceType_Patient < ResourceType_Study &&
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264 ResourceType_Study < ResourceType_Series &&
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265 ResourceType_Series < ResourceType_Instance);
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266
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267 ResourceType upperLevel = queryLevel;
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268 ResourceType lowerLevel = queryLevel;
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269
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270 for (size_t i = 0; i < lookup.size(); i++)
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271 {
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272 ResourceType level = lookup[i].GetLevel();
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273
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274 if (level < upperLevel)
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275 {
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276 upperLevel = level;
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277 }
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278
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279 if (level > lowerLevel)
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280 {
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281 lowerLevel = level;
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282 }
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283 }
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284
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285 assert(upperLevel <= queryLevel &&
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286 queryLevel <= lowerLevel);
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287
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288 std::string joins, comparisons;
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289
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290 size_t count = 0;
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291
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292 for (size_t i = 0; i < lookup.size(); i++)
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293 {
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294 std::string comparison;
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295
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296 if (FormatComparison(comparison, formatter, lookup[i], count))
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297 {
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298 std::string join;
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299 FormatJoin(join, lookup[i], count);
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300 joins += join;
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301
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302 if (!comparison.empty())
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303 {
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304 comparisons += " AND " + comparison;
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305 }
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306
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307 count ++;
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308 }
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309 }
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310
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311 sql = ("SELECT " +
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312 FormatLevel(queryLevel) + ".publicId, " +
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313 FormatLevel(queryLevel) + ".internalId" +
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314 " FROM Resources AS " + FormatLevel(queryLevel));
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315
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316 for (int level = queryLevel - 1; level >= upperLevel; level--)
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317 {
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318 sql += (" INNER JOIN Resources " +
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319 FormatLevel(static_cast<ResourceType>(level)) + " ON " +
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320 FormatLevel(static_cast<ResourceType>(level)) + ".internalId=" +
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321 FormatLevel(static_cast<ResourceType>(level + 1)) + ".parentId");
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322 }
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323
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324 for (int level = queryLevel + 1; level <= lowerLevel; level++)
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325 {
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326 sql += (" INNER JOIN Resources " +
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327 FormatLevel(static_cast<ResourceType>(level)) + " ON " +
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328 FormatLevel(static_cast<ResourceType>(level - 1)) + ".internalId=" +
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329 FormatLevel(static_cast<ResourceType>(level)) + ".parentId");
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330 }
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331
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332 sql += (joins + " WHERE " + FormatLevel(queryLevel) + ".resourceType = " +
3078
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333 formatter.FormatResourceType(queryLevel) + comparisons);
3058
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334
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335 if (limit != 0)
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336 {
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337 sql += " LIMIT " + boost::lexical_cast<std::string>(limit);
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338 }
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339 }
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340 }