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1 | <?php |
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2 | |||
3 | /** |
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4 | * Classe fornissant des fonctions de protection des injections SQL et d'autres fonctions liées aux requetes |
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5 | * @version 1.0 |
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6 | * @deprecated use \FMUP\Db instead |
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7 | */ |
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8 | class Sql |
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9 | { |
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10 | /** |
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11 | * Protège des injections SQL |
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12 | * @param {string} la chaîne à sécuriser |
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13 | * |
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14 | */ |
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15 | public static function sanitize($value) |
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16 | { |
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17 | $value = preg_replace('@<script[^>]*?>.*?</script>@si', '[disabled]', $value); |
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18 | return str_replace('\'', '\'\'', $value); |
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19 | } |
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20 | |||
21 | /** |
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22 | * Protège des injections SQL (pour les requètes) |
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23 | * @param {string} la chaîne à sécuriser |
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24 | **/ |
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25 | public static function secure($value) |
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26 | { |
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27 | return "'" . Sql::sanitize($value) . "'"; |
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28 | } |
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29 | |||
30 | /** |
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31 | * Protège des injections SQL pour les integers |
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32 | * @param {string} la chaîne à sécuriser |
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33 | **/ |
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34 | public static function secureId($value) |
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35 | { |
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36 | if (Is::id($value)) { |
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37 | return $value; |
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38 | } else { |
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39 | return "null"; // entre guillements pour que ça devienne une requète SQL |
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40 | } |
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41 | } |
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42 | |||
43 | public static function secureListeId($value) |
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44 | { |
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45 | if ($value) { |
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46 | $values = explode(',', $value); |
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47 | $values = self::secureArray($values); |
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48 | return implode(',', $values); |
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49 | } else { |
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50 | return "0"; // entre guillements pour que ça devienne une requète SQL |
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51 | } |
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52 | } |
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53 | |||
54 | /** |
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55 | * Protège des injections SQL pour les integers |
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56 | * @param {string} la chaîne à sécuriser |
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57 | **/ |
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58 | public static function secureInteger($value) |
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59 | { |
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60 | $value = strtr($value, ' ', ''); |
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61 | if (Is::integer($value)) { |
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62 | return $value; |
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63 | } else { |
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64 | return "null"; // entre guillements pour que ça devienne une requète SQL |
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65 | } |
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66 | } |
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67 | |||
68 | /** |
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69 | * Protège des injections SQL pour les integers |
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70 | * @param {string} la chaîne à sécuriser |
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71 | **/ |
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72 | public static function secureBoolean($value) |
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73 | { |
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74 | if (Is::integer($value)) { |
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75 | if ($value) { |
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76 | return "1"; |
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77 | } else { |
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78 | return "0"; |
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79 | } |
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80 | } else { |
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81 | return "0"; // entre guillements pour que ça devienne une requète SQL |
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82 | } |
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83 | } |
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84 | |||
85 | /** |
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86 | * Protège des injections décimales SQL en remplaçant les "," par des "." |
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87 | * @param {Decimal} le Décimal à sécuriser |
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88 | **/ |
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89 | public static function secureDecimal($value) |
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90 | { |
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91 | $value = str_replace(' ', '', $value); |
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92 | if (Is::decimal($value)) { |
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93 | return str_replace(",", ".", $value); |
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94 | } else { |
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95 | return "null"; |
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96 | } |
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97 | } |
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98 | |||
99 | /** |
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100 | * Protège des injections de date SQL en remplaçant les "" par des null |
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101 | * @param {date} lea date à sécuriser |
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102 | **/ |
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103 | public static function secureDate($value) |
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104 | { |
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105 | if ($value instanceof \DateTime) { |
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106 | return '"' . $value->format('Y-m-d') . '"'; |
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107 | } |
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108 | if (Is::dateTime($value) || Is::dateTimeUk($value)) { |
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109 | return "'" . $value . "'"; |
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110 | } else { |
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111 | return "null"; |
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112 | } |
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113 | } |
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114 | |||
115 | /** |
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116 | * Protège des injections SQL (pour les requètes) |
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117 | * @param {Array} le tableau à sécuriser |
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118 | **/ |
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119 | public static function secureArray($values) |
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120 | { |
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121 | return array_map(array('Sql', 'secure'), $values); |
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122 | } |
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123 | |||
124 | public static function replaceXJoins($tabs, $orig_join, &$join = array()) |
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125 | { |
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126 | foreach ($tabs as $tab) { |
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127 | if (!isset($join[$tab])) { |
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128 | if (isset($orig_join[$tab]['dep'])) { |
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129 | self::replaceXJoins($orig_join[$tab]['dep'], $orig_join, $join); |
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130 | } |
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131 | if (isset($orig_join[$tab])) { |
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132 | $join[$tab] = $orig_join[$tab]['join']; |
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133 | } |
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134 | } |
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135 | } |
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136 | } |
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137 | |||
138 | public static function replaceXFields($tab, $class = null, $option = array(), &$join = array()) |
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139 | { |
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140 | if ($class) { |
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141 | $fields = call_user_func(array($class, 'xFields'), $option); |
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142 | $orig_fields = array_keys($fields); |
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143 | $dest_fields = array_values($fields); |
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144 | if (isset($option['x_joins'])) { |
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145 | $orig_join = call_user_func(array($class, 'xJoins'), $option); |
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146 | } |
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147 | foreach ($tab as $key => $value) { |
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148 | $tab[$key] = preg_replace($orig_fields, $dest_fields, trim($value)); |
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149 | if (!empty($orig_join)) { |
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150 | preg_match_all("/([[:alpha:]_]+)\./", $tab[$key], $out); |
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151 | self::replaceXJoins($out[1], $orig_join, $join); |
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152 | } |
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153 | } |
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154 | } |
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155 | |||
156 | return $tab; |
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157 | } |
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158 | |||
159 | private static function filterWhere($i) |
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160 | { |
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161 | return $i <> ""; |
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162 | } |
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163 | |||
164 | /** |
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165 | * Convertit un tableau de conditions en un WHERE conditions |
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166 | * Le deuxième paramètre permet de faire un HAVING à la place |
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167 | * @uses self::filterWhere |
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168 | */ |
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169 | public static function parseWhere($where, $having = false, $class = null, $option = array()) |
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170 | { |
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171 | $where = self::replaceXFields($where, $class, $option); |
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172 | |||
173 | if (!is_array($where)) { |
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174 | throw new \FMUP\Exception( |
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175 | "Erreur à l'utilisation de sqlParseWhere : tableau attendu. Reçu : " . serialize($where) |
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176 | ); |
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177 | } |
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178 | |||
179 | $where = array_filter($where, array('\Sql', 'filterWhere')); |
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180 | if ($where == array()) { |
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181 | return ""; |
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182 | } else { |
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183 | if ($having) { |
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184 | $result = " HAVING "; |
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185 | } else { |
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186 | $result = " WHERE "; |
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187 | } |
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188 | foreach ($where as $condition) { |
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189 | if ($condition != '') { |
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190 | $result .= '(' . $condition . ') ' . "\n" . 'AND '; |
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191 | } |
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192 | } |
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193 | // suppression du dernier AND |
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194 | $result = substr($result, 0, -5); |
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195 | return $result; |
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196 | } |
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197 | } |
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198 | |||
199 | /* * ******** |
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200 | * Filtres * |
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201 | * ******** */ |
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202 | |||
203 | /** |
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204 | * Cette fonction crée un tableau de conditions LIKE à partir d'un tableau |
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205 | */ |
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206 | public static function conditionsFromArray($params) |
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207 | { |
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208 | $where = array(); |
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209 | foreach ($params as $champ => $valeur) { |
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210 | if (0 === strpos($champ, 'id_') || $champ == 'id') { |
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211 | if ($valeur != '') { |
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212 | $where[$champ] = "$champ = " . Sql::secureId($valeur); |
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213 | } |
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214 | } elseif (0 === strpos($champ, "date_")) { |
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215 | $where[$champ] = " CONVERT(VARCHAR, " . $champ . ", 103) LIKE '%" |
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216 | . Sql::sanitize(trim($valeur)) . "%' "; |
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217 | } elseif (0 < strpos($champ, "chrono") && $valeur) { |
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218 | try { |
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219 | $valeur = intval($valeur); |
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220 | } catch (Exception $e) { |
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221 | $valeur = $valeur; |
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222 | } |
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223 | View Code Duplication | if (0 === strpos($champ, 'equal_')) { |
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224 | $champ = substr($champ, 6); |
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225 | $where[$champ] = "$champ LIKE '" . Sql::sanitize(trim($valeur)) . "'"; |
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226 | } else { |
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227 | $where[$champ] = "$champ LIKE '" . Sql::sanitize(trim($valeur)) . "%'"; |
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228 | } |
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229 | } else { |
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230 | if ($valeur == "null") { |
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231 | $where[$champ] = "$champ IS null"; |
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232 | } elseif ($valeur == "IS NOT null") { |
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233 | $where[$champ] = "$champ IS NOT null"; |
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234 | View Code Duplication | } elseif ($valeur != '') { |
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235 | if (0 === strpos($champ, 'equal_')) { |
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236 | $champ = substr($champ, 6); |
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237 | $where[$champ] = "$champ = '" . Sql::sanitize(trim($valeur)) . "'"; |
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238 | } else { |
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239 | $where[$champ] = "$champ LIKE '%" . Sql::sanitize(trim($valeur)) . "%'"; |
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240 | } |
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241 | } |
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242 | } |
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243 | } |
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244 | return $where; |
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245 | } |
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246 | } |
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247 |
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