Mercurial > hg > orthanc
annotate OrthancServer/Sources/Search/ISqlLookupFormatter.cpp @ 5460:1474fd6ea6c6
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author | Alain Mazy <am@osimis.io> |
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date | Mon, 11 Dec 2023 12:03:48 +0100 |
parents | 7f37233359aa |
children | 78f68ad10b69 |
rev | line source |
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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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upgrade to year 2023
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU General Public License as |
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10 * published by the Free Software Foundation, either version 3 of the |
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11 * License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License |
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #if !defined(ORTHANC_BUILDING_SERVER_LIBRARY) |
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24 # error Macro ORTHANC_BUILDING_SERVER_LIBRARY must be defined |
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25 #endif |
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26 |
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27 #if ORTHANC_BUILDING_SERVER_LIBRARY == 1 |
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28 # include "../PrecompiledHeadersServer.h" |
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29 #endif |
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30 |
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31 #include "ISqlLookupFormatter.h" |
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32 |
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33 #if ORTHANC_BUILDING_SERVER_LIBRARY == 1 |
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34 # include "../../../OrthancFramework/Sources/OrthancException.h" |
5422 | 35 # include "../../../OrthancFramework/Sources/Toolbox.h" |
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36 #else |
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37 # include <OrthancException.h> |
5422 | 38 # include <Toolbox.h> |
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39 #endif |
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40 |
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41 #include "DatabaseConstraint.h" |
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42 |
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44 #include <list> |
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46 | |
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47 namespace Orthanc |
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48 { |
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49 static std::string FormatLevel(ResourceType level) |
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50 { |
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51 switch (level) |
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52 { |
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53 case ResourceType_Patient: |
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54 return "patients"; |
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55 |
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56 case ResourceType_Study: |
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57 return "studies"; |
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58 |
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59 case ResourceType_Series: |
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60 return "series"; |
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61 |
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62 case ResourceType_Instance: |
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63 return "instances"; |
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64 |
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65 default: |
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66 throw OrthancException(ErrorCode_InternalError); |
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67 } |
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68 } |
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69 |
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70 |
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71 static bool FormatComparison(std::string& target, |
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72 ISqlLookupFormatter& formatter, |
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73 const DatabaseConstraint& constraint, |
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74 size_t index, |
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75 bool escapeBrackets) |
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76 { |
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77 std::string tag = "t" + boost::lexical_cast<std::string>(index); |
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78 |
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79 std::string comparison; |
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80 |
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81 switch (constraint.GetConstraintType()) |
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82 { |
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83 case ConstraintType_Equal: |
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84 case ConstraintType_SmallerOrEqual: |
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85 case ConstraintType_GreaterOrEqual: |
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86 { |
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87 std::string op; |
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88 switch (constraint.GetConstraintType()) |
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89 { |
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90 case ConstraintType_Equal: |
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91 op = "="; |
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92 break; |
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93 |
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94 case ConstraintType_SmallerOrEqual: |
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95 op = "<="; |
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96 break; |
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97 |
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98 case ConstraintType_GreaterOrEqual: |
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99 op = ">="; |
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100 break; |
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101 |
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102 default: |
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103 throw OrthancException(ErrorCode_InternalError); |
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104 } |
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105 |
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106 std::string parameter = formatter.GenerateParameter(constraint.GetSingleValue()); |
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107 |
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108 if (constraint.IsCaseSensitive()) |
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109 { |
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110 comparison = tag + ".value " + op + " " + parameter; |
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111 } |
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112 else |
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113 { |
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114 comparison = "lower(" + tag + ".value) " + op + " lower(" + parameter + ")"; |
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115 } |
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116 |
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117 break; |
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118 } |
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119 |
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120 case ConstraintType_List: |
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121 { |
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122 for (size_t i = 0; i < constraint.GetValuesCount(); i++) |
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123 { |
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124 if (!comparison.empty()) |
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125 { |
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126 comparison += ", "; |
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127 } |
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128 |
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129 std::string parameter = formatter.GenerateParameter(constraint.GetValue(i)); |
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130 |
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131 if (constraint.IsCaseSensitive()) |
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132 { |
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133 comparison += parameter; |
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134 } |
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135 else |
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136 { |
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137 comparison += "lower(" + parameter + ")"; |
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138 } |
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139 } |
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140 |
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141 if (constraint.IsCaseSensitive()) |
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142 { |
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143 comparison = tag + ".value IN (" + comparison + ")"; |
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144 } |
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145 else |
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146 { |
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147 comparison = "lower(" + tag + ".value) IN (" + comparison + ")"; |
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148 } |
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149 |
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150 break; |
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151 } |
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152 |
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153 case ConstraintType_Wildcard: |
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154 { |
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155 const std::string value = constraint.GetSingleValue(); |
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156 |
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157 if (value == "*") |
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158 { |
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159 if (!constraint.IsMandatory()) |
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160 { |
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161 // Universal constraint on an optional tag, ignore it |
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162 return false; |
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163 } |
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164 } |
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165 else |
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166 { |
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167 std::string escaped; |
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|
168 escaped.reserve(value.size()); |
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169 |
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170 for (size_t i = 0; i < value.size(); i++) |
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171 { |
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172 if (value[i] == '*') |
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173 { |
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174 escaped += "%"; |
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175 } |
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176 else if (value[i] == '?') |
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|
177 { |
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178 escaped += "_"; |
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179 } |
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180 else if (value[i] == '%') |
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181 { |
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182 escaped += "\\%"; |
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183 } |
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184 else if (value[i] == '_') |
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185 { |
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186 escaped += "\\_"; |
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187 } |
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188 else if (value[i] == '\\') |
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189 { |
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190 escaped += "\\\\"; |
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|
191 } |
4817
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added ISqlLookupFormatter::IsEscapeBrackets()
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4437
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|
192 else if (escapeBrackets && value[i] == '[') |
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|
193 { |
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|
194 escaped += "\\["; |
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|
195 } |
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added ISqlLookupFormatter::IsEscapeBrackets()
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|
196 else if (escapeBrackets && value[i] == ']') |
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added ISqlLookupFormatter::IsEscapeBrackets()
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|
197 { |
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added ISqlLookupFormatter::IsEscapeBrackets()
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|
198 escaped += "\\]"; |
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|
199 } |
3058
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|
200 else |
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|
201 { |
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202 escaped += value[i]; |
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|
203 } |
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|
204 } |
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205 |
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|
206 std::string parameter = formatter.GenerateParameter(escaped); |
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207 |
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|
208 if (constraint.IsCaseSensitive()) |
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|
209 { |
3079
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ISqlLookupFormatter::FormatWildcardEscape()
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3078
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|
210 comparison = (tag + ".value LIKE " + parameter + " " + |
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ISqlLookupFormatter::FormatWildcardEscape()
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3078
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|
211 formatter.FormatWildcardEscape()); |
3058
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212 } |
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213 else |
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|
214 { |
3079
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ISqlLookupFormatter::FormatWildcardEscape()
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|
215 comparison = ("lower(" + tag + ".value) LIKE lower(" + |
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ISqlLookupFormatter::FormatWildcardEscape()
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3078
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|
216 parameter + ") " + formatter.FormatWildcardEscape()); |
3058
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217 } |
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|
218 } |
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219 |
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220 break; |
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221 } |
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222 |
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223 default: |
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224 return false; |
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225 } |
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226 |
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227 if (constraint.IsMandatory()) |
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228 { |
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229 target = comparison; |
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230 } |
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231 else if (comparison.empty()) |
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232 { |
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233 target = tag + ".value IS NULL"; |
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234 } |
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235 else |
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236 { |
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237 target = tag + ".value IS NULL OR " + comparison; |
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238 } |
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239 |
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240 return true; |
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241 } |
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242 |
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243 |
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244 static void FormatJoin(std::string& target, |
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245 const DatabaseConstraint& constraint, |
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246 size_t index) |
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247 { |
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248 std::string tag = "t" + boost::lexical_cast<std::string>(index); |
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249 |
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250 if (constraint.IsMandatory()) |
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251 { |
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252 target = " INNER JOIN "; |
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253 } |
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254 else |
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255 { |
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256 target = " LEFT JOIN "; |
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257 } |
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258 |
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259 if (constraint.IsIdentifier()) |
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260 { |
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261 target += "DicomIdentifiers "; |
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262 } |
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263 else |
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264 { |
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265 target += "MainDicomTags "; |
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266 } |
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267 |
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268 target += (tag + " ON " + tag + ".id = " + FormatLevel(constraint.GetLevel()) + |
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269 ".internalId AND " + tag + ".tagGroup = " + |
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270 boost::lexical_cast<std::string>(constraint.GetTag().GetGroup()) + |
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271 " AND " + tag + ".tagElement = " + |
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272 boost::lexical_cast<std::string>(constraint.GetTag().GetElement())); |
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273 } |
5227
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274 |
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275 |
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276 static std::string Join(const std::list<std::string>& values, |
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277 const std::string& prefix, |
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278 const std::string& separator) |
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279 { |
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280 if (values.empty()) |
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281 { |
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282 return ""; |
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283 } |
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284 else |
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285 { |
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286 std::string s = prefix; |
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287 |
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288 bool first = true; |
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289 for (std::list<std::string>::const_iterator it = values.begin(); it != values.end(); ++it) |
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290 { |
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291 if (first) |
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292 { |
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293 first = false; |
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294 } |
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295 else |
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296 { |
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297 s += separator; |
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298 } |
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299 |
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300 s += *it; |
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301 } |
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302 |
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303 return s; |
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304 } |
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305 } |
5422 | 306 |
307 static bool FormatComparison2(std::string& target, | |
308 ISqlLookupFormatter& formatter, | |
309 const DatabaseConstraint& constraint, | |
310 bool escapeBrackets) | |
311 { | |
312 std::string comparison; | |
313 std::string tagFilter = ("tagGroup = " + boost::lexical_cast<std::string>(constraint.GetTag().GetGroup()) | |
314 + " AND tagElement = " + boost::lexical_cast<std::string>(constraint.GetTag().GetElement())); | |
315 | |
316 switch (constraint.GetConstraintType()) | |
317 { | |
318 case ConstraintType_Equal: | |
319 case ConstraintType_SmallerOrEqual: | |
320 case ConstraintType_GreaterOrEqual: | |
321 { | |
322 std::string op; | |
323 switch (constraint.GetConstraintType()) | |
324 { | |
325 case ConstraintType_Equal: | |
326 op = "="; | |
327 break; | |
328 | |
329 case ConstraintType_SmallerOrEqual: | |
330 op = "<="; | |
331 break; | |
332 | |
333 case ConstraintType_GreaterOrEqual: | |
334 op = ">="; | |
335 break; | |
336 | |
337 default: | |
338 throw OrthancException(ErrorCode_InternalError); | |
339 } | |
340 | |
341 std::string parameter = formatter.GenerateParameter(constraint.GetSingleValue()); | |
342 | |
343 if (constraint.IsCaseSensitive()) | |
344 { | |
345 comparison = " AND value " + op + " " + parameter; | |
346 } | |
347 else | |
348 { | |
349 comparison = " AND lower(value) " + op + " lower(" + parameter + ")"; | |
350 } | |
351 | |
352 break; | |
353 } | |
354 | |
355 case ConstraintType_List: | |
356 { | |
357 std::vector<std::string> comparisonValues; | |
358 for (size_t i = 0; i < constraint.GetValuesCount(); i++) | |
359 { | |
360 std::string parameter = formatter.GenerateParameter(constraint.GetValue(i)); | |
361 | |
362 if (constraint.IsCaseSensitive()) | |
363 { | |
364 comparisonValues.push_back(parameter); | |
365 } | |
366 else | |
367 { | |
368 comparisonValues.push_back("lower(" + parameter + ")"); | |
369 } | |
370 } | |
371 | |
372 std::string values; | |
373 Toolbox::JoinStrings(values, comparisonValues, ", "); | |
374 | |
375 if (constraint.IsCaseSensitive()) | |
376 { | |
377 comparison = " AND value IN (" + values + ")"; | |
378 } | |
379 else | |
380 { | |
381 comparison = " AND lower(value) IN (" + values + ")"; | |
382 } | |
383 | |
384 break; | |
385 } | |
386 | |
387 case ConstraintType_Wildcard: | |
388 { | |
389 const std::string value = constraint.GetSingleValue(); | |
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390 |
5422 | 391 if (value == "*") |
392 { | |
393 if (!constraint.IsMandatory()) | |
394 { | |
395 // Universal constraint on an optional tag, ignore it | |
396 return false; | |
397 } | |
398 } | |
399 else | |
400 { | |
401 std::string escaped; | |
402 escaped.reserve(value.size()); | |
403 | |
404 for (size_t i = 0; i < value.size(); i++) | |
405 { | |
406 if (value[i] == '*') | |
407 { | |
408 escaped += "%"; | |
409 } | |
410 else if (value[i] == '?') | |
411 { | |
412 escaped += "_"; | |
413 } | |
414 else if (value[i] == '%') | |
415 { | |
416 escaped += "\\%"; | |
417 } | |
418 else if (value[i] == '_') | |
419 { | |
420 escaped += "\\_"; | |
421 } | |
422 else if (value[i] == '\\') | |
423 { | |
424 escaped += "\\\\"; | |
425 } | |
426 else if (escapeBrackets && value[i] == '[') | |
427 { | |
428 escaped += "\\["; | |
429 } | |
430 else if (escapeBrackets && value[i] == ']') | |
431 { | |
432 escaped += "\\]"; | |
433 } | |
434 else | |
435 { | |
436 escaped += value[i]; | |
437 } | |
438 } | |
439 | |
440 std::string parameter = formatter.GenerateParameter(escaped); | |
441 | |
442 if (constraint.IsCaseSensitive()) | |
443 { | |
444 comparison = " AND value LIKE " + parameter + " " + formatter.FormatWildcardEscape(); | |
445 } | |
446 else | |
447 { | |
448 comparison = " AND lower(value) LIKE lower(" + parameter + ") " + formatter.FormatWildcardEscape(); | |
449 } | |
450 } | |
451 | |
452 break; | |
453 } | |
454 | |
455 default: | |
456 return false; | |
457 } | |
458 | |
459 if (constraint.IsMandatory()) | |
460 { | |
461 target = tagFilter + comparison; | |
462 } | |
463 else if (comparison.empty()) | |
464 { | |
465 target = tagFilter + " AND value IS NULL"; | |
466 } | |
467 else | |
468 { | |
469 target = tagFilter + " AND value IS NULL OR " + comparison; | |
470 } | |
471 | |
472 return true; | |
473 } | |
474 | |
475 | |
476 void ISqlLookupFormatter::GetLookupLevels(ResourceType& lowerLevel, ResourceType& upperLevel, const ResourceType& queryLevel, const std::vector<DatabaseConstraint>& lookup) | |
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477 { |
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478 assert(ResourceType_Patient < ResourceType_Study && |
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479 ResourceType_Study < ResourceType_Series && |
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480 ResourceType_Series < ResourceType_Instance); |
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481 |
5422 | 482 lowerLevel = queryLevel; |
483 upperLevel = queryLevel; | |
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484 |
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485 for (size_t i = 0; i < lookup.size(); i++) |
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486 { |
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487 ResourceType level = lookup[i].GetLevel(); |
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488 |
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489 if (level < upperLevel) |
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490 { |
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491 upperLevel = level; |
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492 } |
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493 |
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494 if (level > lowerLevel) |
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495 { |
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496 lowerLevel = level; |
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497 } |
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498 } |
5422 | 499 } |
500 | |
501 | |
502 void ISqlLookupFormatter::Apply(std::string& sql, | |
503 ISqlLookupFormatter& formatter, | |
504 const std::vector<DatabaseConstraint>& lookup, | |
505 ResourceType queryLevel, | |
506 const std::set<std::string>& labels, | |
507 LabelsConstraint labelsConstraint, | |
508 size_t limit) | |
509 { | |
510 ResourceType lowerLevel, upperLevel; | |
511 GetLookupLevels(lowerLevel, upperLevel, queryLevel, lookup); | |
512 | |
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513 assert(upperLevel <= queryLevel && |
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514 queryLevel <= lowerLevel); |
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515 |
4817
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516 const bool escapeBrackets = formatter.IsEscapeBrackets(); |
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517 |
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518 std::string joins, comparisons; |
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519 |
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520 size_t count = 0; |
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521 |
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522 for (size_t i = 0; i < lookup.size(); i++) |
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523 { |
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524 std::string comparison; |
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525 |
4817
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526 if (FormatComparison(comparison, formatter, lookup[i], count, escapeBrackets)) |
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527 { |
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528 std::string join; |
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529 FormatJoin(join, lookup[i], count); |
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530 joins += join; |
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531 |
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532 if (!comparison.empty()) |
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533 { |
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534 comparisons += " AND " + comparison; |
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535 } |
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536 |
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537 count ++; |
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538 } |
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539 } |
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540 |
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541 sql = ("SELECT " + |
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542 FormatLevel(queryLevel) + ".publicId, " + |
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543 FormatLevel(queryLevel) + ".internalId" + |
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544 " FROM Resources AS " + FormatLevel(queryLevel)); |
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545 |
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546 for (int level = queryLevel - 1; level >= upperLevel; level--) |
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547 { |
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548 sql += (" INNER JOIN Resources " + |
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549 FormatLevel(static_cast<ResourceType>(level)) + " ON " + |
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550 FormatLevel(static_cast<ResourceType>(level)) + ".internalId=" + |
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551 FormatLevel(static_cast<ResourceType>(level + 1)) + ".parentId"); |
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552 } |
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553 |
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554 for (int level = queryLevel + 1; level <= lowerLevel; level++) |
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555 { |
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556 sql += (" INNER JOIN Resources " + |
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557 FormatLevel(static_cast<ResourceType>(level)) + " ON " + |
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558 FormatLevel(static_cast<ResourceType>(level - 1)) + ".internalId=" + |
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559 FormatLevel(static_cast<ResourceType>(level)) + ".parentId"); |
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560 } |
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561 |
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562 std::list<std::string> where; |
5256 | 563 where.push_back(FormatLevel(queryLevel) + ".resourceType = " + |
564 formatter.FormatResourceType(queryLevel) + comparisons); | |
5227
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565 |
5248
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566 if (!labels.empty()) |
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567 { |
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568 /** |
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569 * "In SQL Server, NOT EXISTS and NOT IN predicates are the best |
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570 * way to search for missing values, as long as both columns in |
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571 * question are NOT NULL." |
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572 * https://explainextended.com/2009/09/15/not-in-vs-not-exists-vs-left-join-is-null-sql-server/ |
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573 **/ |
5248
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574 |
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575 std::list<std::string> formattedLabels; |
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576 for (std::set<std::string>::const_iterator it = labels.begin(); it != labels.end(); ++it) |
5227
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577 { |
5248
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578 formattedLabels.push_back(formatter.GenerateParameter(*it)); |
5227
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579 } |
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580 |
5248
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581 std::string condition; |
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582 switch (labelsConstraint) |
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583 { |
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584 case LabelsConstraint_Any: |
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585 condition = "> 0"; |
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586 break; |
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587 |
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588 case LabelsConstraint_All: |
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589 condition = "= " + boost::lexical_cast<std::string>(labels.size()); |
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590 break; |
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591 |
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592 case LabelsConstraint_None: |
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593 condition = "= 0"; |
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594 break; |
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595 |
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596 default: |
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597 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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598 } |
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599 |
5256 | 600 where.push_back("(SELECT COUNT(1) FROM Labels AS selectedLabels WHERE selectedLabels.id = " + FormatLevel(queryLevel) + |
601 ".internalId AND selectedLabels.label IN (" + Join(formattedLabels, "", ", ") + ")) " + condition); | |
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602 } |
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603 |
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604 sql += joins + Join(where, " WHERE ", " AND "); |
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605 |
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606 if (limit != 0) |
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607 { |
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608 sql += " LIMIT " + boost::lexical_cast<std::string>(limit); |
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609 } |
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610 } |
5422 | 611 |
612 | |
613 void ISqlLookupFormatter::ApplySingleLevel(std::string& sql, | |
614 ISqlLookupFormatter& formatter, | |
615 const std::vector<DatabaseConstraint>& lookup, | |
616 ResourceType queryLevel, | |
617 const std::set<std::string>& labels, | |
618 LabelsConstraint labelsConstraint, | |
619 size_t limit | |
620 ) | |
621 { | |
622 ResourceType lowerLevel, upperLevel; | |
623 GetLookupLevels(lowerLevel, upperLevel, queryLevel, lookup); | |
624 | |
625 assert(upperLevel == queryLevel && | |
626 queryLevel == lowerLevel); | |
627 | |
628 const bool escapeBrackets = formatter.IsEscapeBrackets(); | |
629 | |
630 std::vector<std::string> mainDicomTagsComparisons, dicomIdentifiersComparisons; | |
631 | |
632 for (size_t i = 0; i < lookup.size(); i++) | |
633 { | |
634 std::string comparison; | |
635 | |
636 if (FormatComparison2(comparison, formatter, lookup[i], escapeBrackets)) | |
637 { | |
638 if (!comparison.empty()) | |
639 { | |
640 if (lookup[i].IsIdentifier()) | |
641 { | |
642 dicomIdentifiersComparisons.push_back(comparison); | |
643 } | |
644 else | |
645 { | |
646 mainDicomTagsComparisons.push_back(comparison); | |
647 } | |
648 } | |
649 } | |
650 } | |
651 | |
652 sql = ("SELECT publicId, internalId " | |
653 "FROM Resources " | |
654 "WHERE resourceType = " + formatter.FormatResourceType(queryLevel) | |
655 + " "); | |
656 | |
657 if (dicomIdentifiersComparisons.size() > 0) | |
658 { | |
659 for (std::vector<std::string>::const_iterator it = dicomIdentifiersComparisons.begin(); it < dicomIdentifiersComparisons.end(); ++it) | |
660 { | |
661 sql += (" AND internalId IN (SELECT id FROM DicomIdentifiers WHERE " + *it + ") "); | |
662 } | |
663 } | |
664 | |
665 if (mainDicomTagsComparisons.size() > 0) | |
666 { | |
667 for (std::vector<std::string>::const_iterator it = mainDicomTagsComparisons.begin(); it < mainDicomTagsComparisons.end(); ++it) | |
668 { | |
669 sql += (" AND internalId IN (SELECT id FROM MainDicomTags WHERE " + *it + ") "); | |
670 } | |
671 } | |
672 | |
673 if (!labels.empty()) | |
674 { | |
675 /** | |
676 * "In SQL Server, NOT EXISTS and NOT IN predicates are the best | |
677 * way to search for missing values, as long as both columns in | |
678 * question are NOT NULL." | |
679 * https://explainextended.com/2009/09/15/not-in-vs-not-exists-vs-left-join-is-null-sql-server/ | |
680 **/ | |
681 | |
682 std::list<std::string> formattedLabels; | |
683 for (std::set<std::string>::const_iterator it = labels.begin(); it != labels.end(); ++it) | |
684 { | |
685 formattedLabels.push_back(formatter.GenerateParameter(*it)); | |
686 } | |
687 | |
688 std::string condition; | |
689 std::string inOrNotIn; | |
690 switch (labelsConstraint) | |
691 { | |
692 case LabelsConstraint_Any: | |
693 condition = "> 0"; | |
694 inOrNotIn = "IN"; | |
695 break; | |
696 | |
697 case LabelsConstraint_All: | |
698 condition = "= " + boost::lexical_cast<std::string>(labels.size()); | |
699 inOrNotIn = "IN"; | |
700 break; | |
701 | |
702 case LabelsConstraint_None: | |
703 condition = "> 0"; | |
704 inOrNotIn = "NOT IN"; | |
705 break; | |
706 | |
707 default: | |
708 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
709 } | |
710 | |
711 sql += (" AND internalId " + inOrNotIn + " (SELECT id" | |
712 " FROM (SELECT id, COUNT(1) AS labelsCount " | |
713 "FROM Labels " | |
714 "WHERE label IN (" + Join(formattedLabels, "", ", ") + ") GROUP BY id" | |
715 ") AS temp " | |
716 " WHERE labelsCount " + condition + ")"); | |
717 } | |
718 | |
719 if (limit != 0) | |
720 { | |
721 sql += " LIMIT " + boost::lexical_cast<std::string>(limit); | |
722 } | |
723 } | |
724 | |
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725 } |