1 | <?php |
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2 | /** |
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3 | * @brief Select query statement builder |
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4 | * |
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5 | * dcSelectStatement is a class used to build select queries |
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6 | * |
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7 | * @package Dotclear |
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8 | * @subpackage Core |
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9 | * |
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10 | * @copyright Bruno Hondelatte & Association Dotclear |
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11 | * @copyright GPL-2.0-only |
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12 | */ |
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13 | |
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14 | /** |
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15 | * SQL Statement : small utility to build SQL queries |
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16 | */ |
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17 | class dcSqlStatement |
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18 | { |
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19 | protected $core; |
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20 | protected $con; |
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21 | |
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22 | protected $columns; |
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23 | protected $from; |
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24 | protected $where; |
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25 | protected $cond; |
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26 | protected $sql; |
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27 | |
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28 | /** |
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29 | * Class constructor |
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30 | * |
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31 | * @param dcCore $core dcCore instance |
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32 | * @param mixed $from optional from clause(s) |
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33 | */ |
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34 | public function __construct(&$core, $from = null) |
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35 | { |
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36 | $this->core = &$core; |
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37 | $this->con = &$core->con; |
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38 | |
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39 | $this->columns = |
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40 | $this->from = |
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41 | $this->where = |
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42 | $this->cond = |
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43 | $this->sql = |
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44 | array(); |
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45 | |
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46 | if ($from !== null) { |
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47 | if (is_array($from)) { |
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48 | $this->froms($from); |
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49 | } else { |
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50 | $this->from($from); |
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51 | } |
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52 | } |
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53 | } |
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54 | |
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55 | /** |
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56 | * Magic getter method |
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57 | * |
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58 | * @param string $property The property |
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59 | * |
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60 | * @return mixed property value if property exists |
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61 | */ |
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62 | public function __get($property) |
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63 | { |
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64 | if (property_exists($this, $property)) { |
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65 | return $this->$property; |
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66 | } |
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67 | trigger_error('Unknown property ' . $property, E_USER_ERROR); |
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68 | return; |
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69 | } |
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70 | |
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71 | /** |
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72 | * Magic setter method |
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73 | * |
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74 | * @param string $property The property |
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75 | * @param mixed $value The value |
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76 | * |
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77 | * @return self |
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78 | */ |
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79 | public function __set($property, $value) |
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80 | { |
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81 | if (property_exists($this, $property)) { |
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82 | $this->$property = $value; |
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83 | } else { |
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84 | trigger_error('Unknown property ' . $property, E_USER_ERROR); |
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85 | } |
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86 | return $this; |
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87 | } |
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88 | |
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89 | /** |
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90 | * Adds column(s) |
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91 | * |
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92 | * @param mixed $c the column(s) |
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93 | * @param boolean $reset reset previous column(s) first |
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94 | * |
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95 | * @return dcSelectStatement self instance, enabling to chain calls |
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96 | */ |
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97 | public function columns($c, $reset = false) |
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98 | { |
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99 | if ($reset) { |
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100 | $this->columns = array(); |
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101 | } |
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102 | if (is_array($c)) { |
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103 | $this->columns = array_merge($this->columns, $c); |
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104 | } else { |
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105 | array_push($this->columns, $c); |
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106 | } |
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107 | return $this; |
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108 | } |
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109 | |
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110 | /** |
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111 | * columns() alias |
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112 | * |
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113 | * @param mixed $c the column(s) |
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114 | * @param boolean $reset reset previous column(s) first |
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115 | * |
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116 | * @return dcSelectStatement self instance, enabling to chain calls |
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117 | */ |
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118 | public function column($c, $reset = false) |
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119 | { |
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120 | return $this->columns($c, $reset); |
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121 | } |
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122 | |
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123 | /** |
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124 | * Adds FROM clause(s) |
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125 | * |
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126 | * @param mixed $c the from clause(s) |
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127 | * @param boolean $reset reset previous from(s) first |
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128 | * |
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129 | * @return dcSelectStatement self instance, enabling to chain calls |
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130 | */ |
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131 | public function from($c, $reset = false) |
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132 | { |
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133 | if ($reset) { |
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134 | $this->from = array(); |
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135 | } |
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136 | if (is_array($c)) { |
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137 | $filter = function($v) { |
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138 | return trim(ltrim($v, ',')); |
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139 | }; |
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140 | $c = array_map($filter, $c); // Cope with legacy code |
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141 | $this->from = array_merge($this->from, $c); |
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142 | } else { |
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143 | $c = trim(ltrim($c, ',')); // Cope with legacy code |
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144 | array_push($this->from, $c); |
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145 | } |
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146 | return $this; |
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147 | } |
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148 | |
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149 | /** |
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150 | * Adds WHERE clause(s) condition (each will be AND combined in statement) |
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151 | * |
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152 | * @param mixed $c the clause(s) |
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153 | * @param boolean $reset reset previous where(s) first |
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154 | * |
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155 | * @return dcSelectStatement self instance, enabling to chain calls |
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156 | */ |
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157 | public function where($c, $reset = false) |
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158 | { |
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159 | if ($reset) { |
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160 | $this->where = array(); |
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161 | } |
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162 | if (is_array($c)) { |
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163 | $this->where = array_merge($this->where, $c); |
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164 | } else { |
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165 | array_push($this->where, $c); |
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166 | } |
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167 | return $this; |
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168 | } |
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169 | |
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170 | /** |
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171 | * Adds additional WHERE clause condition(s) (including an operator at beginning) |
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172 | * |
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173 | * @param mixed $c the clause(s) |
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174 | * @param boolean $reset reset previous condition(s) first |
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175 | * |
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176 | * @return dcSelectStatement self instance, enabling to chain calls |
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177 | */ |
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178 | public function cond($c, $reset = false) |
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179 | { |
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180 | if ($reset) { |
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181 | $this->cond = array(); |
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182 | } |
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183 | if (is_array($c)) { |
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184 | $this->cond = array_merge($this->cond, $c); |
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185 | } else { |
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186 | array_push($this->cond, $c); |
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187 | } |
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188 | return $this; |
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189 | } |
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190 | |
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191 | /** |
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192 | * Adds generic clause(s) |
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193 | * |
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194 | * @param mixed $c the clause(s) |
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195 | * @param boolean $reset reset previous generic clause(s) first |
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196 | * |
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197 | * @return dcSelectStatement self instance, enabling to chain calls |
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198 | */ |
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199 | public function sql($c, $reset = false) |
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200 | { |
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201 | if ($reset) { |
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202 | $this->sql = array(); |
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203 | } |
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204 | if (is_array($c)) { |
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205 | $this->sql = array_merge($this->sql, $c); |
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206 | } else { |
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207 | array_push($this->sql, $c); |
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208 | } |
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209 | return $this; |
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210 | } |
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211 | |
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212 | // Helpers |
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213 | |
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214 | /** |
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215 | * Escape a value |
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216 | * |
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217 | * @param string $value The value |
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218 | * |
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219 | * @return string |
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220 | */ |
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221 | public function escape($value) |
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222 | { |
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223 | return $this->con->escape($value); |
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224 | } |
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225 | |
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226 | /** |
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227 | * Quote and escape a value if necessary (type string) |
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228 | * |
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229 | * @param mixed $value The value |
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230 | * @param boolean $escape The escape |
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231 | * |
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232 | * @return string |
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233 | */ |
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234 | public function quote($value, $escape = true) |
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235 | { |
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236 | return |
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237 | (is_string($value) ? "'" : '') . |
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238 | ($escape ? $this->con->escape($value) : $value) . |
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239 | (is_string($value) ? "'" : ''); |
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240 | } |
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241 | |
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242 | /** |
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243 | * Return an SQL IN (…) fragment |
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244 | * |
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245 | * @param mixed $list The list |
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246 | * |
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247 | * @return string |
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248 | */ |
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249 | public function in($list) |
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250 | { |
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251 | return $this->con->in($list); |
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252 | } |
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253 | |
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254 | /** |
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255 | * Return an SQL formatted date |
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256 | * |
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257 | * @param string $field Field name |
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258 | * @param string $pattern Date format |
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259 | * |
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260 | * @return string |
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261 | */ |
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262 | public function dateFormat($field, $pattern) |
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263 | { |
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264 | return $this->con->dateFormat($field, $pattern); |
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265 | } |
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266 | |
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267 | /** |
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268 | * Return an SQL formatted REGEXP clause |
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269 | * |
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270 | * @param string $value The value |
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271 | * |
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272 | * @return string |
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273 | */ |
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274 | public function regexp($value) |
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275 | { |
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276 | if ($this->con->driver() == 'mysql' || $this->con->driver() == 'mysqli' || $this->con->driver() == 'mysqlimb4') { |
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277 | $clause = "REGEXP '^" . $this->escape(preg_quote($value)) . "[0-9]+$'"; |
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278 | } elseif ($this->con->driver() == 'pgsql') { |
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279 | $clause = "~ '^" . $this->escape(preg_quote($value)) . "[0-9]+$'"; |
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280 | } else { |
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281 | $clause = "LIKE '" . |
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282 | $sql->escape(preg_replace(array('%', '_', '!'), array('!%', '!_', '!!'), $value)) . |
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283 | "%' ESCAPE '!'"; |
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284 | } |
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285 | return $clause; |
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286 | } |
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287 | |
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288 | /** |
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289 | * Compare two SQL queries |
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290 | * |
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291 | * May be used for debugging purpose as: |
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292 | * |
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293 | * if (!$sql->isSame($sql->statement(), $oldRequest)) { |
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294 | * trigger_error('SQL statement error: ' . $sql->statement() . ' / ' .$oldRequest, E_USER_ERROR); |
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295 | * } |
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296 | * |
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297 | * @param string $local The local |
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298 | * @param string $external The external |
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299 | * |
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300 | * @return boolean True if same, False otherwise. |
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301 | */ |
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302 | public function isSame($local, $external) |
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303 | { |
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304 | $filter = function ($s) { |
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305 | $s = strtoupper($s); |
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306 | $patterns = array( |
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307 | '\s+' => ' ', // Multiple spaces/tabs -> one space |
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308 | ' \)' => ')', // <space>) -> ) |
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309 | ' ,' => ',', // <space>, -> , |
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310 | '\( ' => '(' // (<space> -> ( |
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311 | ); |
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312 | foreach ($patterns as $pattern => $replace) { |
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313 | $s = preg_replace('!' . $pattern . '!', $replace, $s); |
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314 | } |
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315 | return trim($s); |
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316 | }; |
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317 | return ($filter($local) === $filter($external)); |
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318 | } |
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319 | } |
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320 | |
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321 | /** |
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322 | * Select Statement : small utility to build select queries |
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323 | */ |
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324 | class dcSelectStatement extends dcSqlStatement |
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325 | { |
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326 | protected $join; |
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327 | protected $having; |
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328 | protected $order; |
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329 | protected $group; |
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330 | protected $limit; |
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331 | protected $offset; |
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332 | protected $distinct; |
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333 | |
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334 | /** |
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335 | * Class constructor |
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336 | * |
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337 | * @param dcCore $core dcCore instance |
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338 | * @param mixed $from optional from clause(s) |
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339 | */ |
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340 | public function __construct(&$core, $from = null) |
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341 | { |
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342 | $this->join = |
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343 | $this->having = |
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344 | $this->order = |
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345 | $this->group = |
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346 | array(); |
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347 | |
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348 | $this->limit = null; |
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349 | $this->offset = null; |
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350 | $this->distinct = false; |
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351 | |
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352 | parent::__construct($core, $from); |
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353 | } |
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354 | |
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355 | /** |
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356 | * Adds JOIN clause(s) (applied on first from item only) |
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357 | * |
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358 | * @param mixed $c the join clause(s) |
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359 | * @param boolean $reset reset previous join(s) first |
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360 | * |
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361 | * @return dcSelectStatement self instance, enabling to chain calls |
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362 | */ |
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363 | public function join($c, $reset = false) |
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364 | { |
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365 | if ($reset) { |
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366 | $this->join = array(); |
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367 | } |
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368 | if (is_array($c)) { |
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369 | $this->join = array_merge($this->join, $c); |
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370 | } else { |
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371 | array_push($this->join, $c); |
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372 | } |
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373 | return $this; |
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374 | } |
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375 | |
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376 | /** |
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377 | * Adds HAVING clause(s) |
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378 | * |
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379 | * @param mixed $c the clause(s) |
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380 | * @param boolean $reset reset previous having(s) first |
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381 | * |
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382 | * @return dcSelectStatement self instance, enabling to chain calls |
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383 | */ |
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384 | public function having($c, $reset = false) |
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385 | { |
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386 | if ($reset) { |
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387 | $this->having = array(); |
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388 | } |
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389 | if (is_array($c)) { |
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390 | $this->having = array_merge($this->having, $c); |
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391 | } else { |
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392 | array_push($this->having, $c); |
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393 | } |
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394 | return $this; |
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395 | } |
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396 | |
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397 | /** |
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398 | * Adds ORDER BY clause(s) |
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399 | * |
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400 | * @param mixed $c the clause(s) |
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401 | * @param boolean $reset reset previous order(s) first |
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402 | * |
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403 | * @return dcSelectStatement self instance, enabling to chain calls |
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404 | */ |
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405 | public function order($c, $reset = false) |
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406 | { |
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407 | if ($reset) { |
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408 | $this->order = array(); |
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409 | } |
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410 | if (is_array($c)) { |
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411 | $this->order = array_merge($this->order, $c); |
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412 | } else { |
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413 | array_push($this->order, $c); |
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414 | } |
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415 | return $this; |
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416 | } |
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417 | |
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418 | /** |
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419 | * Adds GROUP BY clause(s) |
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420 | * |
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421 | * @param mixed $c the clause(s) |
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422 | * @param boolean $reset reset previous group(s) first |
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423 | * |
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424 | * @return dcSelectStatement self instance, enabling to chain calls |
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425 | */ |
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426 | public function group($c, $reset = false) |
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427 | { |
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428 | if ($reset) { |
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429 | $this->group = array(); |
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430 | } |
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431 | if (is_array($c)) { |
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432 | $this->group = array_merge($this->group, $c); |
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433 | } else { |
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434 | array_push($this->group, $c); |
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435 | } |
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436 | return $this; |
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437 | } |
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438 | |
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439 | /** |
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440 | * Defines the LIMIT for select |
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441 | * |
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442 | * @param mixed $limit |
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443 | * @return dcSelectStatement self instance, enabling to chain calls |
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444 | */ |
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445 | public function limit($limit) |
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446 | { |
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447 | $offset = null; |
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448 | if (is_array($limit)) { |
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449 | // Keep only values |
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450 | $limit = array_values($limit); |
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451 | // If 2 values, [0] -> offset, [1] -> limit |
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452 | // If 1 value, [0] -> limit |
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453 | if (isset($limit[1])) { |
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454 | $offset = $limit[0]; |
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455 | $limit = $limit[1]; |
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456 | } else { |
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457 | $limit = limit[0]; |
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458 | } |
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459 | } |
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460 | $this->limit = $limit; |
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461 | if ($offset !== null) { |
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462 | $this->offset = $offset; |
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463 | } |
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464 | return $this; |
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465 | } |
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466 | |
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467 | /** |
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468 | * Defines the OFFSET for select |
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469 | * |
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470 | * @param integer $offset |
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471 | * @return dcSelectStatement self instance, enabling to chain calls |
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472 | */ |
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473 | public function offset($offset) |
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474 | { |
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475 | $this->offset = $offset; |
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476 | return $this; |
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477 | } |
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478 | |
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479 | /** |
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480 | * Defines the DISTINCT flag for select |
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481 | * |
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482 | * @param boolean $distinct |
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483 | * @return dcSelectStatement self instance, enabling to chain calls |
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484 | */ |
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485 | public function distinct($distinct = true) |
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486 | { |
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487 | $this->distinct = $distinct; |
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488 | return $this; |
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489 | } |
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490 | |
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491 | /** |
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492 | * Returns the select statement |
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493 | * |
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494 | * @return string the statement |
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495 | */ |
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496 | public function statement() |
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497 | { |
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498 | // Check if source given |
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499 | if (!count($this->from)) { |
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500 | trigger_error(__('SQL SELECT requires a FROM source'), E_USER_ERROR); |
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501 | return ''; |
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502 | } |
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503 | |
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504 | // Query |
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505 | $query = 'SELECT ' . ($this->distinct ? 'DISTINCT ' : ''); |
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506 | |
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507 | // Specific column(s) or all (*) |
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508 | if (count($this->columns)) { |
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509 | $query .= join(', ', $this->columns) . ' '; |
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510 | } else { |
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511 | $query .= '* '; |
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512 | } |
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513 | |
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514 | // Table(s) and Join(s) |
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515 | $query .= 'FROM ' . $this->from[0] . ' '; |
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516 | $query .= join(' ', $this->join) . ' '; |
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517 | if (count($this->from) > 1) { |
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518 | array_shift($this->from); |
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519 | $query .= ', ' . join(', ', $this->from) . ' '; // All other from(s) |
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520 | } |
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521 | |
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522 | // Where clause(s) |
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523 | if (count($this->where)) { |
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524 | $query .= 'WHERE ' . join(' AND ', $this->where) . ' '; |
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525 | } |
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526 | |
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527 | // Direct where clause(s) |
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528 | if (count($this->cond)) { |
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529 | if (!count($this->where)) { |
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530 | $query .= 'WHERE 1 '; // Hack to cope with the operator included in top of each condition |
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531 | } |
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532 | $query .= join(' ', $this->cond) . ' '; |
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533 | } |
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534 | |
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535 | // Generic clause(s) |
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536 | if (count($this->sql)) { |
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537 | $query .= join(' ', $this->sql) . ' '; |
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538 | } |
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539 | |
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540 | // Group by clause (columns or aliases) |
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541 | if (count($this->group)) { |
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542 | $query .= 'GROUP BY ' . join(', ', $this->group) . ' '; |
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543 | } |
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544 | |
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545 | // Having clause(s) |
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546 | if (count($this->having)) { |
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547 | $query .= 'HAVING ' . join(' AND ', $this->having) . ' '; |
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548 | } |
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549 | |
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550 | // Order by clause (columns or aliases and optionnaly order ASC/DESC) |
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551 | if (count($this->order)) { |
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552 | $query .= 'ORDER BY ' . join(', ', $this->order) . ' '; |
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553 | } |
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554 | |
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555 | // Limit clause |
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556 | if ($this->limit !== null) { |
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557 | $query .= 'LIMIT ' . $this->limit . ' '; |
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558 | } |
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559 | |
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560 | // Offset clause |
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561 | if ($this->offset !== null) { |
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562 | $query .= 'OFFSET ' . $this->offset . ' '; |
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563 | } |
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564 | |
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565 | return trim($query); |
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566 | } |
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567 | } |
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568 | |
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569 | /** |
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570 | * Delete Statement : small utility to build delete queries |
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571 | */ |
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572 | class dcDeleteStatement extends dcSqlStatement |
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573 | { |
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574 | /** |
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575 | * Returns the delete statement |
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576 | * |
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577 | * @return string the statement |
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578 | */ |
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579 | public function statement() |
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580 | { |
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581 | // Check if source given |
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582 | if (!count($this->from)) { |
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583 | trigger_error(__('SQL DELETE requires a FROM source'), E_USER_ERROR); |
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584 | return ''; |
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585 | } |
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586 | |
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587 | // Query |
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588 | $query = 'DELETE '; |
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589 | |
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590 | // Table |
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591 | $query .= 'FROM ' . $this->from[0] . ' '; |
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592 | |
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593 | // Where clause(s) |
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594 | if (count($this->where)) { |
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595 | $query .= 'WHERE ' . join(' AND ', $this->where) . ' '; |
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596 | } |
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597 | |
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598 | // Direct where clause(s) |
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599 | if (count($this->cond)) { |
---|
600 | if (!count($this->where)) { |
---|
601 | $query .= 'WHERE 1 '; // Hack to cope with the operator included in top of each condition |
---|
602 | } |
---|
603 | $query .= join(' ', $this->cond) . ' '; |
---|
604 | } |
---|
605 | |
---|
606 | // Generic clause(s) |
---|
607 | if (count($this->sql)) { |
---|
608 | $query .= join(' ', $this->sql) . ' '; |
---|
609 | } |
---|
610 | |
---|
611 | return trim($query); |
---|
612 | } |
---|
613 | } |
---|
614 | |
---|
615 | /** |
---|
616 | * Update Statement : small utility to build update queries |
---|
617 | */ |
---|
618 | class dcUpdateStatement extends dcSqlStatement |
---|
619 | { |
---|
620 | protected $set; |
---|
621 | |
---|
622 | /** |
---|
623 | * Class constructor |
---|
624 | * |
---|
625 | * @param dcCore $core dcCore instance |
---|
626 | * @param mixed $from optional from clause(s) |
---|
627 | */ |
---|
628 | public function __construct(&$core, $from = null) |
---|
629 | { |
---|
630 | $this->set = array(); |
---|
631 | |
---|
632 | parent::__construct($core, $from); |
---|
633 | } |
---|
634 | |
---|
635 | /** |
---|
636 | * from() alias |
---|
637 | * |
---|
638 | * @param mixed $c the reference clause(s) |
---|
639 | * @param boolean $reset reset previous reference first |
---|
640 | * |
---|
641 | * @return dcUpdateStatement self instance, enabling to chain calls |
---|
642 | */ |
---|
643 | public function reference($c, $reset = false) |
---|
644 | { |
---|
645 | return $this->from($c, $reset); |
---|
646 | } |
---|
647 | |
---|
648 | /** |
---|
649 | * from() alias |
---|
650 | * |
---|
651 | * @param mixed $c the reference clause(s) |
---|
652 | * @param boolean $reset reset previous reference first |
---|
653 | * |
---|
654 | * @return dcUpdateStatement self instance, enabling to chain calls |
---|
655 | */ |
---|
656 | public function ref($c, $reset = false) |
---|
657 | { |
---|
658 | return $this->reference($c, $reset); |
---|
659 | } |
---|
660 | |
---|
661 | /** |
---|
662 | * Adds update value(s) |
---|
663 | * |
---|
664 | * @param mixed $c the udpate values(s) |
---|
665 | * @param boolean $reset reset previous update value(s) first |
---|
666 | * |
---|
667 | * @return dcUpdateStatement self instance, enabling to chain calls |
---|
668 | */ |
---|
669 | public function set($c, $reset = false) |
---|
670 | { |
---|
671 | if ($reset) { |
---|
672 | $this->set = array(); |
---|
673 | } |
---|
674 | if (is_array($c)) { |
---|
675 | $this->set = array_merge($this->set, $c); |
---|
676 | } else { |
---|
677 | array_push($this->set, $c); |
---|
678 | } |
---|
679 | return $this; |
---|
680 | } |
---|
681 | |
---|
682 | /** |
---|
683 | * set() alias |
---|
684 | * |
---|
685 | * @param mixed $c the update value(s) |
---|
686 | * @param boolean $reset reset previous update value(s) first |
---|
687 | * |
---|
688 | * @return dcUpdateStatement self instance, enabling to chain calls |
---|
689 | */ |
---|
690 | public function sets($c, $reset = false) |
---|
691 | { |
---|
692 | return $this->set($c, $reset); |
---|
693 | } |
---|
694 | |
---|
695 | /** |
---|
696 | * Returns the WHERE part of update statement |
---|
697 | * |
---|
698 | * Useful to construct the where clause used with cursor->update() method |
---|
699 | */ |
---|
700 | public function whereStatement() |
---|
701 | { |
---|
702 | $query = ''; |
---|
703 | |
---|
704 | // Where clause(s) |
---|
705 | if (count($this->where)) { |
---|
706 | $query .= 'WHERE ' . join(' AND ', $this->where) . ' '; |
---|
707 | } |
---|
708 | |
---|
709 | // Direct where clause(s) |
---|
710 | if (count($this->cond)) { |
---|
711 | if (!count($this->where)) { |
---|
712 | $query .= 'WHERE 1 '; // Hack to cope with the operator included in top of each condition |
---|
713 | } |
---|
714 | $query .= join(' ', $this->cond) . ' '; |
---|
715 | } |
---|
716 | |
---|
717 | // Generic clause(s) |
---|
718 | if (count($this->sql)) { |
---|
719 | $query .= join(' ', $this->sql) . ' '; |
---|
720 | } |
---|
721 | |
---|
722 | return trim($query); |
---|
723 | } |
---|
724 | |
---|
725 | /** |
---|
726 | * Returns the update statement |
---|
727 | * |
---|
728 | * @return string the statement |
---|
729 | */ |
---|
730 | public function statement() |
---|
731 | { |
---|
732 | // Check if source given |
---|
733 | if (!count($this->from)) { |
---|
734 | trigger_error(__('SQL UPDATE requires an INTO source'), E_USER_ERROR); |
---|
735 | return ''; |
---|
736 | } |
---|
737 | |
---|
738 | // Query |
---|
739 | $query = 'UPDATE '; |
---|
740 | |
---|
741 | // Reference |
---|
742 | $query .= $this->from[0] . ' '; |
---|
743 | |
---|
744 | // Value(s) |
---|
745 | if (count($this->set)) { |
---|
746 | $query .= 'SET ' . join(', ', $this->set) . ' '; |
---|
747 | } |
---|
748 | |
---|
749 | // Where clause(s) |
---|
750 | if (count($this->where)) { |
---|
751 | $query .= 'WHERE ' . join(' AND ', $this->where) . ' '; |
---|
752 | } |
---|
753 | |
---|
754 | // Direct where clause(s) |
---|
755 | if (count($this->cond)) { |
---|
756 | if (!count($this->where)) { |
---|
757 | $query .= 'WHERE 1 '; // Hack to cope with the operator included in top of each condition |
---|
758 | } |
---|
759 | $query .= join(' ', $this->cond) . ' '; |
---|
760 | } |
---|
761 | |
---|
762 | // Generic clause(s) |
---|
763 | if (count($this->sql)) { |
---|
764 | $query .= join(' ', $this->sql) . ' '; |
---|
765 | } |
---|
766 | |
---|
767 | return trim($query); |
---|
768 | } |
---|
769 | } |
---|
770 | |
---|
771 | /** |
---|
772 | * Insert Statement : small utility to build insert queries |
---|
773 | */ |
---|
774 | class dcInsertStatement extends dcSqlStatement |
---|
775 | { |
---|
776 | protected $lines; |
---|
777 | |
---|
778 | /** |
---|
779 | * Class constructor |
---|
780 | * |
---|
781 | * @param dcCore $core dcCore instance |
---|
782 | * @param mixed $into optional into clause(s) |
---|
783 | */ |
---|
784 | public function __construct(&$core, $into = null) |
---|
785 | { |
---|
786 | $this->lines = array(); |
---|
787 | |
---|
788 | parent::__construct($core, $into); |
---|
789 | } |
---|
790 | |
---|
791 | /** |
---|
792 | * from() alias |
---|
793 | * |
---|
794 | * @param mixed $c the into clause(s) |
---|
795 | * @param boolean $reset reset previous into first |
---|
796 | * |
---|
797 | * @return dcSelectStatement self instance, enabling to chain calls |
---|
798 | */ |
---|
799 | public function into($c, $reset = false) |
---|
800 | { |
---|
801 | return $this->into($c, $reset); |
---|
802 | } |
---|
803 | |
---|
804 | /** |
---|
805 | * Adds update value(s) |
---|
806 | * |
---|
807 | * @param mixed $c the insert values(s) |
---|
808 | * @param boolean $reset reset previous insert value(s) first |
---|
809 | * |
---|
810 | * @return dcSelectStatement self instance, enabling to chain calls |
---|
811 | */ |
---|
812 | public function lines($c, $reset = false) |
---|
813 | { |
---|
814 | if ($reset) { |
---|
815 | $this->lines = array(); |
---|
816 | } |
---|
817 | if (is_array($c)) { |
---|
818 | $this->lines = array_merge($this->lines, $c); |
---|
819 | } else { |
---|
820 | array_push($this->lines, $c); |
---|
821 | } |
---|
822 | return $this; |
---|
823 | } |
---|
824 | |
---|
825 | /** |
---|
826 | * line() alias |
---|
827 | * |
---|
828 | * @param mixed $c the insert value(s) |
---|
829 | * @param boolean $reset reset previous insert value(s) first |
---|
830 | * |
---|
831 | * @return dcInsertStatement self instance, enabling to chain calls |
---|
832 | */ |
---|
833 | public function line($c, $reset = false) |
---|
834 | { |
---|
835 | return $this->lines($c, $reset); |
---|
836 | } |
---|
837 | |
---|
838 | /** |
---|
839 | * Returns the insert statement |
---|
840 | * |
---|
841 | * @return string the statement |
---|
842 | */ |
---|
843 | public function statement() |
---|
844 | { |
---|
845 | // Check if source given |
---|
846 | if (!count($this->from)) { |
---|
847 | trigger_error(__('SQL INSERT requires an INTO source'), E_USER_ERROR); |
---|
848 | return ''; |
---|
849 | } |
---|
850 | |
---|
851 | // Query |
---|
852 | $query = 'INSERT '; |
---|
853 | |
---|
854 | // Reference |
---|
855 | $query .= 'INTO ' . $this->from[0] . ' '; |
---|
856 | |
---|
857 | // Column(s) |
---|
858 | if (count($this->columns)) { |
---|
859 | $query .= '(' . join(', ', $this->columns) . ') '; |
---|
860 | } |
---|
861 | |
---|
862 | // Value(s) |
---|
863 | $query .= 'VALUES '; |
---|
864 | if (count($this->lines)) { |
---|
865 | $raws = array(); |
---|
866 | foreach ($this->lines as $line) { |
---|
867 | $raws[] = '(' . join(', ', $line) . ')'; |
---|
868 | } |
---|
869 | $query .= join(', ', $raws); |
---|
870 | } else { |
---|
871 | // Use SQL default values (useful only if SQL strict mode is off or if every columns has a defined default value) |
---|
872 | $query .= '()'; |
---|
873 | } |
---|
874 | |
---|
875 | return trim($query); |
---|
876 | } |
---|
877 | } |
---|