annotate Core/SQLite/Statement.cpp @ 724:96a2d2da0fee

more sqlite tests
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 18 Feb 2014 16:55:10 +0100
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children a811bdf8b8eb
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * Copyright (c) 2012 The Chromium Authors. All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are
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10 * met:
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11 *
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12 * * Redistributions of source code must retain the above copyright
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13 * notice, this list of conditions and the following disclaimer.
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14 * * Redistributions in binary form must reproduce the above
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15 * copyright notice, this list of conditions and the following disclaimer
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16 * in the documentation and/or other materials provided with the
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17 * distribution.
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18 * * Neither the name of Google Inc., the name of the CHU of Liege,
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19 * nor the names of its contributors may be used to endorse or promote
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20 * products derived from this software without specific prior written
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21 * permission.
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22 *
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23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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34 **/
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37 #include "Statement.h"
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39 #include "Connection.h"
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40 #include "../Toolbox.h"
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42 #include <boost/lexical_cast.hpp>
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43 #include <sqlite3.h>
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44 #include <string.h>
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45 #include <glog/logging.h>
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47 namespace Orthanc
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48 {
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49 namespace SQLite
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50 {
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51 int Statement::CheckError(int err) const
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52 {
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53 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE);
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54 if (!succeeded)
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55 {
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56 throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err));
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57 }
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59 return err;
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60 }
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61
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62 void Statement::CheckOk(int err) const
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63 {
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64 if (err == SQLITE_RANGE)
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65 {
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66 // Binding to a non-existent variable is evidence of a serious error.
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67 throw OrthancException("Bind value out of range");
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68 }
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69 else if (err != SQLITE_OK)
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70 {
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71 throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err));
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72 }
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73 }
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76 Statement::Statement(Connection& database,
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77 const StatementId& id,
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78 const std::string& sql) :
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79 reference_(database.GetCachedStatement(id, sql.c_str()))
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80 {
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81 Reset(true);
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82 }
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85 Statement::Statement(Connection& database,
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86 const StatementId& id,
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87 const char* sql) :
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88 reference_(database.GetCachedStatement(id, sql))
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89 {
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90 Reset(true);
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91 }
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94 Statement::Statement(Connection& database,
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95 const std::string& sql) :
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96 reference_(database.GetWrappedObject(), sql.c_str())
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97 {
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98 }
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100
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101 Statement::Statement(Connection& database,
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102 const char* sql) :
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103 reference_(database.GetWrappedObject(), sql)
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104 {
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105 }
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106
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107
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108 bool Statement::Run()
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109 {
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110 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement());
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111 return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE;
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112 }
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113
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114 bool Statement::Step()
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115 {
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116 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement());
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117 return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW;
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118 }
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119
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120 void Statement::Reset(bool clear_bound_vars)
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121 {
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122 // We don't call CheckError() here because sqlite3_reset() returns
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123 // the last error that Step() caused thereby generating a second
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124 // spurious error callback.
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125 if (clear_bound_vars)
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126 sqlite3_clear_bindings(GetStatement());
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127 //VLOG(1) << "SQLite::Statement::Reset";
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128 sqlite3_reset(GetStatement());
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129 }
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130
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131 std::string Statement::GetOriginalSQLStatement()
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132 {
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133 return std::string(sqlite3_sql(GetStatement()));
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134 }
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136
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137 void Statement::BindNull(int col)
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138 {
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139 CheckOk(sqlite3_bind_null(GetStatement(), col + 1));
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140 }
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141
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142 void Statement::BindBool(int col, bool val)
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143 {
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144 BindInt(col, val ? 1 : 0);
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145 }
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146
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147 void Statement::BindInt(int col, int val)
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148 {
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149 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val));
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150 }
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151
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152 void Statement::BindInt64(int col, int64_t val)
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153 {
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154 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val));
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155 }
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156
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157 void Statement::BindDouble(int col, double val)
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158 {
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159 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val));
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160 }
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161
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162 void Statement::BindCString(int col, const char* val)
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163 {
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164 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT));
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165 }
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166
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167 void Statement::BindString(int col, const std::string& val)
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168 {
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169 CheckOk(sqlite3_bind_text(GetStatement(),
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170 col + 1,
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171 val.data(),
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172 val.size(),
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173 SQLITE_TRANSIENT));
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174 }
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175
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176 /*void Statement::BindString16(int col, const string16& value)
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177 {
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178 BindString(col, UTF16ToUTF8(value));
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179 }*/
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180
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181 void Statement::BindBlob(int col, const void* val, int val_len)
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182 {
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183 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT));
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184 }
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185
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186
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187 int Statement::ColumnCount() const
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188 {
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189 return sqlite3_column_count(GetStatement());
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190 }
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191
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192
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193 ColumnType Statement::GetColumnType(int col) const
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194 {
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195 // Verify that our enum matches sqlite's values.
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196 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER);
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197 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT);
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198 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT);
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199 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB);
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200 assert(COLUMN_TYPE_NULL == SQLITE_NULL);
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201
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202 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col));
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203 }
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204
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205 ColumnType Statement::GetDeclaredColumnType(int col) const
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206 {
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207 std::string column_type(sqlite3_column_decltype(GetStatement(), col));
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208 Toolbox::ToLowerCase(column_type);
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209
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210 if (column_type == "integer")
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211 return COLUMN_TYPE_INTEGER;
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212 else if (column_type == "float")
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213 return COLUMN_TYPE_FLOAT;
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214 else if (column_type == "text")
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215 return COLUMN_TYPE_TEXT;
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216 else if (column_type == "blob")
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217 return COLUMN_TYPE_BLOB;
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218
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219 return COLUMN_TYPE_NULL;
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220 }
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221
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222 bool Statement::ColumnIsNull(int col) const
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223 {
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224 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL;
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225 }
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226
0
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227 bool Statement::ColumnBool(int col) const
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228 {
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229 return !!ColumnInt(col);
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230 }
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231
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232 int Statement::ColumnInt(int col) const
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233 {
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234 return sqlite3_column_int(GetStatement(), col);
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235 }
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236
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237 int64_t Statement::ColumnInt64(int col) const
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238 {
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239 return sqlite3_column_int64(GetStatement(), col);
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240 }
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241
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242 double Statement::ColumnDouble(int col) const
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243 {
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244 return sqlite3_column_double(GetStatement(), col);
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245 }
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246
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247 std::string Statement::ColumnString(int col) const
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248 {
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249 const char* str = reinterpret_cast<const char*>(
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250 sqlite3_column_text(GetStatement(), col));
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251 int len = sqlite3_column_bytes(GetStatement(), col);
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252
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253 std::string result;
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254 if (str && len > 0)
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255 result.assign(str, len);
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256 return result;
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257 }
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258
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259 /*string16 Statement::ColumnString16(int col) const
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260 {
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261 std::string s = ColumnString(col);
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262 return !s.empty() ? UTF8ToUTF16(s) : string16();
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263 }*/
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264
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265 int Statement::ColumnByteLength(int col) const
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266 {
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267 return sqlite3_column_bytes(GetStatement(), col);
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268 }
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269
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270 const void* Statement::ColumnBlob(int col) const
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271 {
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272 return sqlite3_column_blob(GetStatement(), col);
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273 }
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274
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275 bool Statement::ColumnBlobAsString(int col, std::string* blob)
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276 {
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277 const void* p = ColumnBlob(col);
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278 size_t len = ColumnByteLength(col);
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279 blob->resize(len);
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280 if (blob->size() != len) {
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281 return false;
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282 }
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283 blob->assign(reinterpret_cast<const char*>(p), len);
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284 return true;
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285 }
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286
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287 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const
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288 {
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289 const void* data = ColumnBlob(col);
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290 size_t len = ColumnByteLength(col) / sizeof(char16);
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291 val->resize(len);
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292 if (val->size() != len)
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293 return false;
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294 val->assign(reinterpret_cast<const char16*>(data), len);
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295 return true;
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296 }*/
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297
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298 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const
0
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299 {
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300 val->clear();
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301
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302 const void* data = sqlite3_column_blob(GetStatement(), col);
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303 int len = sqlite3_column_bytes(GetStatement(), col);
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304 if (data && len > 0) {
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305 val->resize(len);
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306 memcpy(&(*val)[0], data, len);
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307 }
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308 return true;
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309 }*/
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310
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311 /*bool Statement::ColumnBlobAsVector(
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312 int col,
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313 std::vector<unsigned char>* val) const
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314 {
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315 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val));
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316 }*/
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318 }
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319 }