redCOMPONENT-COM /
redCORE
| Total Complexity | 196 |
| Total Lines | 791 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Complex classes like RDatabaseSqlparserSqlcreator often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use RDatabaseSqlparserSqlcreator, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 40 | class RDatabaseSqlparserSqlcreator { |
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| 41 | |||
| 42 | public $created; |
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| 43 | |||
| 44 | public function __construct($parsed = null) { |
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| 45 | if ($parsed) { |
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| 46 | $this->create($parsed); |
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| 47 | } |
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| 48 | } |
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| 49 | |||
| 50 | public function create($parsed) { |
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| 51 | $k = key($parsed); |
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| 52 | switch ($k) { |
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| 53 | |||
| 54 | case "UNION": |
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| 55 | case "UNION ALL": |
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| 56 | throw new Exception($k . " not implemented.", 20); |
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| 57 | break; |
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| 58 | case "SELECT": |
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| 59 | $this->created = $this->processSelectStatement($parsed); |
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| 60 | break; |
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| 61 | case "INSERT": |
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| 62 | $this->created = $this->processInsertStatement($parsed); |
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| 63 | break; |
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| 64 | case "DELETE": |
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| 65 | $this->created = $this->processDeleteStatement($parsed); |
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| 66 | break; |
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| 67 | case "UPDATE": |
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| 68 | $this->created = $this->processUpdateStatement($parsed); |
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| 69 | break; |
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| 70 | default: |
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| 71 | throw new Exception($k . " not implemented.", 20); |
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| 72 | break; |
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| 73 | } |
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| 74 | return $this->created; |
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| 75 | } |
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| 76 | |||
| 77 | protected function processSelectStatement($parsed) |
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| 78 | { |
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| 79 | |||
| 80 | $sql = $this->processSELECT($parsed['SELECT']) . " " . $this->processFROM($parsed['FROM']); |
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| 81 | if (isset($parsed['WHERE'])) { |
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| 82 | $sql .= " " . $this->processWHERE($parsed['WHERE']); |
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| 83 | } |
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| 84 | if (isset($parsed['GROUP'])) { |
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| 85 | $sql .= " " . $this->processGROUP($parsed['GROUP']); |
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| 86 | } |
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| 87 | if (isset($parsed['ORDER'])) { |
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| 88 | $sql .= " " . $this->processORDER($parsed['ORDER']); |
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| 89 | } |
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| 90 | if (isset($parsed['LIMIT'])) { |
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| 91 | $sql .= " " . $this->processLIMIT($parsed['LIMIT']); |
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| 92 | } |
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| 93 | return $sql; |
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| 94 | } |
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| 95 | |||
| 96 | protected function processInsertStatement($parsed) { |
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| 97 | return $this->processINSERT($parsed['INSERT']) . " " . $this->processVALUES($parsed['VALUES']); |
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| 98 | // TODO: subquery? |
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| 99 | } |
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| 100 | |||
| 101 | protected function processDeleteStatement($parsed) { |
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| 102 | return $this->processDELETE($parsed['DELETE']) . " " . $this->processFROM($parsed['FROM']) . " " |
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| 103 | . $this->processWHERE($parsed['WHERE']); |
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| 104 | } |
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| 105 | |||
| 106 | protected function processUpdateStatement($parsed) { |
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| 107 | $sql = $this->processUPDATE($parsed['UPDATE']) . " " . $this->processSET($parsed['SET']); |
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| 108 | if (isset($parsed['WHERE'])) { |
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| 109 | $sql .= " " . $this->processWHERE($parsed['WHERE']); |
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| 110 | } |
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| 111 | return $sql; |
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| 112 | } |
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| 113 | |||
| 114 | protected function processDELETE($parsed) { |
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| 115 | $sql = "DELETE"; |
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| 116 | foreach ($parsed['TABLES'] as $v) { |
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| 117 | $sql .= $v . ","; |
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| 118 | } |
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| 119 | return substr($sql, 0, -1); |
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| 120 | } |
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| 121 | |||
| 122 | protected function processSELECT($parsed) |
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| 123 | { |
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| 124 | $sql = ""; |
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| 125 | |||
| 126 | foreach ($parsed as $k => $v) |
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| 127 | { |
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| 128 | $len = strlen($sql); |
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| 129 | $sql .= $this->processReserved($v); |
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| 130 | $sql .= $this->processColRef($v); |
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| 131 | $sql .= $this->processSelectExpression($v); |
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| 132 | $sql .= $this->processFunction($v); |
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| 133 | $sql .= $this->processConstant($v); |
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| 134 | $sql .= $this->processSelectBracketExpression($v); |
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| 135 | |||
| 136 | if ($len == strlen($sql)) |
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| 137 | { |
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| 138 | throw new RDatabaseSqlparserExceptioncreatesql('SELECT', $k, $v, 'expr_type'); |
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| 139 | } |
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| 140 | |||
| 141 | $sql .= ","; |
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| 142 | } |
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| 143 | |||
| 144 | $sql = substr($sql, 0, -1); |
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| 145 | |||
| 146 | return "SELECT " . $sql; |
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| 147 | } |
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| 148 | |||
| 149 | protected function processFROM($parsed) { |
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| 150 | $sql = ""; |
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| 151 | foreach ($parsed as $k => $v) { |
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| 152 | $len = strlen($sql); |
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| 153 | $sql .= $this->processTable($v, $k); |
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| 154 | $sql .= $this->processTableExpression($v, $k); |
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| 155 | $sql .= $this->processSubQuery($v, $k); |
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| 156 | $sql .= $this->processConstant($v); |
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| 157 | $sql .= $this->processIndexHints($v); |
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| 158 | |||
| 159 | if ($len == strlen($sql)) { |
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| 160 | throw new RDatabaseSqlparserExceptioncreatesql('FROM', $k, $v, 'expr_type'); |
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| 161 | } |
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| 162 | |||
| 163 | $sql .= " "; |
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| 164 | } |
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| 165 | return "FROM " . substr($sql, 0, -1); |
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| 166 | } |
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| 167 | |||
| 168 | protected function processORDER($parsed) { |
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| 169 | $sql = ""; |
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| 170 | foreach ($parsed as $k => $v) { |
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| 171 | $len = strlen($sql); |
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| 172 | $sql .= $this->processOrderByAlias($v); |
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| 173 | $sql .= $this->processColRef($v); |
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| 174 | $sql .= $this->processConstant($v); |
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| 175 | $sql .= $this->processFunction($v); |
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| 176 | $sql .= $this->processOrderByExpression($v); |
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| 177 | |||
| 178 | if ($len == strlen($sql)) { |
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| 179 | throw new RDatabaseSqlparserExceptioncreatesql('ORDER', $k, $v, 'expr_type'); |
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| 180 | } |
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| 181 | |||
| 182 | $sql .= ","; |
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| 183 | } |
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| 184 | $sql = substr($sql, 0, -1); |
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| 185 | return "ORDER BY " . $sql; |
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| 186 | } |
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| 187 | |||
| 188 | protected function processLIMIT($parsed) { |
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| 189 | $sql = (!empty($parsed['offset']) ? $parsed['offset'] . ", " : ""); |
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| 190 | $sql .= (!empty($parsed['rowcount']) ? $parsed['rowcount'] : ""); |
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| 191 | if ($sql === "") { |
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| 192 | throw new RDatabaseSqlparserExceptioncreatesql('LIMIT', 'rowcount', $parsed, 'rowcount'); |
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| 193 | } |
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| 194 | return "LIMIT " . $sql; |
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| 195 | } |
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| 196 | |||
| 197 | protected function processIndexHints($parsed) |
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| 198 | { |
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| 199 | if (!isset($parsed['index_hints']) || !$parsed['index_hints']) |
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| 200 | { |
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| 201 | return ""; |
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| 202 | } |
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| 203 | |||
| 204 | if ($parsed['index_hints']['base_expr'] == "") |
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| 205 | { |
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| 206 | throw new RDatabaseSqlparserExceptioncreatesql('Index_Hints', 'USE', $parsed['index_hints'], 'expr_type'); |
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| 207 | } |
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| 208 | |||
| 209 | return ' ' . $parsed['index_hints']['base_expr']; |
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| 210 | } |
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| 211 | |||
| 212 | protected function processGROUP($parsed) { |
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| 213 | $sql = ""; |
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| 214 | foreach ($parsed as $k => $v) { |
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| 215 | $len = strlen($sql); |
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| 216 | $sql .= $this->processColRef($v); |
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| 217 | $sql .= $this->processPosition($v); |
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| 218 | $sql .= $this->processFunction($v); |
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| 219 | $sql .= $this->processGroupByAlias($v); |
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| 220 | $sql .= $this->processGroupByExpression($v); |
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| 221 | |||
| 222 | if ($len == strlen($sql)) { |
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| 223 | throw new RDatabaseSqlparserExceptioncreatesql('GROUP', $k, $v, 'expr_type'); |
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| 224 | } |
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| 225 | |||
| 226 | $sql .= ","; |
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| 227 | } |
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| 228 | $sql = substr($sql, 0, -1); |
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| 229 | return "GROUP BY " . $sql; |
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| 230 | } |
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| 231 | |||
| 232 | protected function processGroupByAlias($parsed) { |
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| 233 | if ($parsed['expr_type'] !== 'alias') { |
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| 234 | return ""; |
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| 235 | } |
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| 236 | return $parsed['base_expr']; |
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| 237 | } |
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| 238 | |||
| 239 | protected function processPosition($parsed) { |
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| 240 | if ($parsed['expr_type'] !== 'pos') { |
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| 241 | return ""; |
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| 242 | } |
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| 243 | return $parsed['base_expr']; |
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| 244 | } |
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| 245 | |||
| 246 | protected function processRecord($parsed) { |
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| 247 | if ($parsed['expr_type'] !== 'record') { |
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| 248 | return ""; |
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| 249 | } |
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| 250 | $sql = ""; |
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| 251 | foreach ($parsed['data'] as $k => $v) { |
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| 252 | $len = strlen($sql); |
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| 253 | $sql .= $this->processConstant($v); |
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| 254 | $sql .= $this->processFunction($v); |
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| 255 | $sql .= $this->processOperator($v); |
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| 256 | |||
| 257 | if ($len == strlen($sql)) { |
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| 258 | throw new RDatabaseSqlparserExceptioncreatesql('record', $k, $v, 'expr_type'); |
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| 259 | } |
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| 260 | |||
| 261 | $sql .= ","; |
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| 262 | } |
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| 263 | $sql = substr($sql, 0, -1); |
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| 264 | return "(" . $sql . ")"; |
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| 265 | |||
| 266 | } |
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| 267 | |||
| 268 | protected function processVALUES($parsed) { |
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| 269 | $sql = ""; |
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| 270 | foreach ($parsed as $k => $v) { |
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| 271 | $len = strlen($sql); |
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| 272 | $sql .= $this->processRecord($v); |
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| 273 | |||
| 274 | if ($len == strlen($sql)) { |
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| 275 | throw new RDatabaseSqlparserExceptioncreatesql('VALUES', $k, $v, 'expr_type'); |
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| 276 | } |
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| 277 | |||
| 278 | $sql .= ","; |
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| 279 | } |
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| 280 | $sql = substr($sql, 0, -1); |
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| 281 | return "VALUES " . $sql; |
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| 282 | } |
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| 283 | |||
| 284 | protected function processINSERT($parsed) { |
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| 285 | $sql = "INSERT INTO " . $parsed['table']; |
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| 286 | |||
| 287 | if ($parsed['columns'] === false) { |
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| 288 | return $sql; |
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| 289 | } |
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| 290 | |||
| 291 | $columns = ""; |
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| 292 | foreach ($parsed['columns'] as $k => $v) { |
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| 293 | $len = strlen($columns); |
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| 294 | $columns .= $this->processColRef($v); |
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| 295 | |||
| 296 | if ($len == strlen($columns)) { |
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| 297 | throw new RDatabaseSqlparserExceptioncreatesql('INSERT[columns]', $k, $v, 'expr_type'); |
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| 298 | } |
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| 299 | |||
| 300 | $columns .= ","; |
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| 301 | } |
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| 302 | |||
| 303 | if ($columns !== "") { |
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| 304 | $columns = " (" . substr($columns, 0, -1) . ")"; |
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| 305 | } |
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| 306 | |||
| 307 | $sql .= $columns; |
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| 308 | return $sql; |
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| 309 | } |
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| 310 | |||
| 311 | protected function processUPDATE($parsed) { |
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| 312 | return "UPDATE " . $parsed[0]['table']; |
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| 313 | } |
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| 314 | |||
| 315 | protected function processSetExpression($parsed) { |
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| 316 | if ($parsed['expr_type'] !== 'expression') { |
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| 317 | return ""; |
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| 318 | } |
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| 319 | $sql = ""; |
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| 320 | foreach ($parsed['sub_tree'] as $k => $v) { |
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| 321 | $len = strlen($sql); |
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| 322 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
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| 323 | { |
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| 324 | $sql = substr($sql, 0, -1) . ' '; |
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| 325 | } |
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| 326 | |||
| 327 | $sql .= $this->processReserved($v); |
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| 328 | $sql .= $this->processColRef($v); |
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| 329 | $sql .= $this->processConstant($v); |
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| 330 | $sql .= $this->processOperator($v); |
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| 331 | $sql .= $this->processFunction($v); |
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| 332 | |||
| 333 | if ($len == strlen($sql)) { |
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| 334 | throw new RDatabaseSqlparserExceptioncreatesql('SET expression subtree', $k, $v, 'expr_type'); |
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| 335 | } |
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| 336 | |||
| 337 | $sql .= " "; |
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| 338 | } |
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| 339 | |||
| 340 | $sql = substr($sql, 0, -1); |
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| 341 | return $sql; |
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| 342 | } |
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| 343 | |||
| 344 | protected function processSET($parsed) { |
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| 345 | $sql = ""; |
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| 346 | foreach ($parsed as $k => $v) { |
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| 347 | $len = strlen($sql); |
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| 348 | $sql .= $this->processSetExpression($v); |
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| 349 | |||
| 350 | if ($len == strlen($sql)) { |
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| 351 | throw new RDatabaseSqlparserExceptioncreatesql('SET', $k, $v, 'expr_type'); |
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| 352 | } |
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| 353 | |||
| 354 | $sql .= ","; |
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| 355 | } |
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| 356 | return "SET " . substr($sql, 0, -1); |
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| 357 | } |
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| 358 | |||
| 359 | protected function processWHERE($parsed) { |
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| 360 | $sql = "WHERE "; |
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| 361 | foreach ($parsed as $k => $v) { |
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| 362 | $len = strlen($sql); |
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| 363 | |||
| 364 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
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| 365 | { |
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| 366 | $sql = substr($sql, 0, -1) . ' '; |
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| 367 | } |
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| 368 | |||
| 369 | $sql .= $this->processReserved($v); |
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| 370 | $sql .= $this->processOperator($v); |
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| 371 | $sql .= $this->processConstant($v); |
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| 372 | $sql .= $this->processColRef($v); |
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| 373 | $sql .= $this->processSubQuery($v); |
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| 374 | $sql .= $this->processInList($v); |
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| 375 | $sql .= $this->processFunction($v); |
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| 376 | $sql .= $this->processWhereExpression($v); |
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| 377 | $sql .= $this->processWhereBracketExpression($v); |
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| 378 | |||
| 379 | if (strlen($sql) == $len) { |
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| 380 | throw new RDatabaseSqlparserExceptioncreatesql('WHERE', $k, $v, 'expr_type'); |
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| 381 | } |
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| 382 | |||
| 383 | $sql .= " "; |
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| 384 | } |
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| 385 | return substr($sql, 0, -1); |
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| 386 | } |
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| 387 | |||
| 388 | protected function processWhereExpression($parsed) { |
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| 389 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'expression') { |
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| 390 | return ""; |
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| 391 | } |
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| 392 | $sql = ""; |
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| 393 | foreach ($parsed['sub_tree'] as $k => $v) { |
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| 394 | $len = strlen($sql); |
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| 395 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
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| 396 | { |
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| 397 | $sql = substr($sql, 0, -1) . ' '; |
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| 398 | } |
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| 399 | |||
| 400 | $sql .= $this->processReserved($v); |
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| 401 | $sql .= $this->processColRef($v); |
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| 402 | $sql .= $this->processConstant($v); |
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| 403 | $sql .= $this->processOperator($v); |
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| 404 | $sql .= $this->processInList($v); |
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| 405 | $sql .= $this->processFunction($v); |
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| 406 | $sql .= $this->processWhereExpression($v); |
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| 407 | $sql .= $this->processWhereBracketExpression($v); |
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| 408 | $sql .= $this->processSubQuery($v); |
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| 409 | |||
| 410 | if ($len == strlen($sql)) { |
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| 411 | throw new RDatabaseSqlparserExceptioncreatesql('WHERE expression subtree', $k, $v, 'expr_type'); |
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| 412 | } |
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| 413 | |||
| 414 | $sql .= " "; |
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| 415 | } |
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| 416 | |||
| 417 | $sql = substr($sql, 0, -1); |
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| 418 | return $sql; |
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| 419 | } |
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| 420 | |||
| 421 | protected function processWhereBracketExpression($parsed) { |
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| 422 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'bracket_expression') { |
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| 423 | return ""; |
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| 424 | } |
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| 425 | elseif (empty($parsed['sub_tree'])) |
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| 426 | { |
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| 427 | return "()"; |
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| 428 | } |
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| 429 | $sql = ""; |
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| 430 | foreach ($parsed['sub_tree'] as $k => $v) { |
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| 431 | $len = strlen($sql); |
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| 432 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
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| 433 | { |
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| 434 | $sql = substr($sql, 0, -1) . ' '; |
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| 435 | } |
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| 436 | |||
| 437 | $sql .= $this->processReserved($v); |
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| 438 | $sql .= $this->processColRef($v); |
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| 439 | $sql .= $this->processConstant($v); |
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| 440 | $sql .= $this->processOperator($v); |
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| 441 | $sql .= $this->processInList($v); |
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| 442 | $sql .= $this->processFunction($v); |
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| 443 | $sql .= $this->processWhereExpression($v); |
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| 444 | $sql .= $this->processWhereBracketExpression($v); |
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| 445 | $sql .= $this->processSubQuery($v); |
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| 446 | |||
| 447 | if ($len == strlen($sql)) { |
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| 448 | throw new RDatabaseSqlparserExceptioncreatesql('WHERE expression subtree', $k, $v, 'expr_type'); |
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| 449 | } |
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| 450 | |||
| 451 | $sql .= " "; |
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| 452 | } |
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| 453 | |||
| 454 | $sql = "(" . substr($sql, 0, -1) . ")"; |
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| 455 | return $sql; |
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| 456 | } |
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| 457 | |||
| 458 | protected function processOrderByAlias($parsed) { |
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| 459 | if ($parsed['expr_type'] !== 'alias') { |
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| 460 | return ""; |
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| 461 | } |
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| 462 | return $parsed['base_expr'] . $this->processDirection($parsed['direction']); |
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| 463 | } |
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| 464 | |||
| 465 | protected function processLimitRowCount($key, $value) { |
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| 466 | if ($key != 'rowcount') { |
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| 467 | return ""; |
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| 468 | } |
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| 469 | return $value; |
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| 470 | } |
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| 471 | |||
| 472 | protected function processLimitOffset($key, $value) { |
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| 473 | if ($key !== 'offset') { |
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| 474 | return ""; |
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| 475 | } |
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| 476 | return $value; |
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| 477 | } |
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| 478 | |||
| 479 | protected function processFunction($parsed) { |
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| 480 | if (empty($parsed['expr_type']) || (($parsed['expr_type'] !== 'aggregate_function') && ($parsed['expr_type'] !== 'function'))) { |
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| 481 | return ""; |
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| 482 | } |
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| 483 | |||
| 484 | if ($parsed['sub_tree'] === false) { |
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| 485 | return $parsed['base_expr'] . "()"; |
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| 486 | } |
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| 487 | |||
| 488 | $sql = ""; |
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| 489 | |||
| 490 | foreach ($parsed['sub_tree'] as $k => $v) { |
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| 491 | $len = strlen($sql); |
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| 492 | |||
| 493 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
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| 494 | { |
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| 495 | $sql = substr($sql, 0, -1) . ' '; |
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| 496 | } |
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| 497 | |||
| 498 | $sql .= (!empty($this->processReserved($v))) ? ',' . $this->processReserved($v) : $this->processReserved($v); |
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| 499 | $sql .= $this->processFunction($v); |
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| 500 | $sql .= $this->processConstant($v); |
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| 501 | $sql .= $this->processOperator($v); |
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| 502 | $sql .= $this->processColRef($v); |
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| 503 | $sql .= $this->processInList($v); |
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| 504 | $sql .= $this->processSelectBracketExpression($v); |
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| 505 | $sql .= $this->processSelectExpression($v); |
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| 506 | $sql .= $this->processSubQuery($v); |
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| 507 | |||
| 508 | if ($len == strlen($sql)) { |
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| 509 | throw new RDatabaseSqlparserExceptioncreatesql('function subtree', $k, $v, 'expr_type'); |
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| 510 | } |
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| 511 | |||
| 512 | $sql .= ($this->isReserved($v) || $this->isOperator($v) ? " " : ","); |
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| 513 | } |
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| 514 | |||
| 515 | $sql2 = $parsed['base_expr'] . "(" . substr($sql, 0, -1) . ")"; |
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| 516 | $sql2 .= !empty($parsed['alias']) ? $this->processAlias($parsed['alias']) : ''; |
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| 517 | |||
| 518 | return $sql2; |
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| 519 | } |
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| 520 | |||
| 521 | protected function processSelectExpression($parsed) { |
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| 522 | if ($parsed['expr_type'] !== 'expression') { |
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| 523 | return ""; |
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| 524 | } |
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| 525 | $sql = $this->processSubTree($parsed, " "); |
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| 526 | $sql .= $this->processAlias($parsed['alias']); |
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| 527 | return $sql; |
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| 528 | } |
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| 529 | |||
| 530 | protected function processGroupByExpression($parsed) { |
||
| 531 | if ($parsed['expr_type'] !== 'expression') { |
||
| 532 | return ""; |
||
| 533 | } |
||
| 534 | $sql = $this->processSubTree($parsed, " "); |
||
| 535 | return $sql; |
||
| 536 | } |
||
| 537 | |||
| 538 | protected function processOrderByExpression($parsed) { |
||
| 539 | if ($parsed['expr_type'] !== 'expression') { |
||
| 540 | return ""; |
||
| 541 | } |
||
| 542 | $sql = $this->processSubTree($parsed, " "); |
||
| 543 | |||
| 544 | return $sql; |
||
| 545 | } |
||
| 546 | |||
| 547 | protected function processSelectBracketExpression($parsed) |
||
| 548 | { |
||
| 549 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'bracket_expression') |
||
| 550 | { |
||
| 551 | return ""; |
||
| 552 | } |
||
| 553 | elseif (empty($parsed['sub_tree'])) |
||
| 554 | { |
||
| 555 | return ""; |
||
| 556 | } |
||
| 557 | |||
| 558 | $sql = $this->processSubTree($parsed, " "); |
||
| 559 | $sql .= $this->processColRef($parsed); |
||
| 560 | $sql = "(" . $sql . ")"; |
||
| 561 | $sql .= !empty($parsed['alias']) ? $this->processAlias($parsed['alias']) : ''; |
||
| 562 | |||
| 563 | return $sql; |
||
| 564 | } |
||
| 565 | |||
| 566 | protected function processSubTree($parsed, $delim = " ") { |
||
| 567 | if ($parsed['sub_tree'] === '') { |
||
| 568 | return ""; |
||
| 569 | } |
||
| 570 | $sql = ""; |
||
| 571 | foreach ($parsed['sub_tree'] as $k => $v) { |
||
| 572 | $len = strlen($sql); |
||
| 573 | |||
| 574 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
||
| 575 | { |
||
| 576 | $sql = substr($sql, 0, -1) . ' '; |
||
| 577 | } |
||
| 578 | |||
| 579 | $sql .= $this->processReserved($v); |
||
| 580 | $sql .= $this->processFunction($v); |
||
| 581 | $sql .= $this->processOperator($v); |
||
| 582 | $sql .= $this->processConstant($v); |
||
| 583 | $sql .= $this->processUserVariable($v); |
||
| 584 | $sql .= $this->processSelectBracketExpression($v); |
||
| 585 | $sql .= $this->processSelectExpression($v); |
||
| 586 | $sql .= $this->processSubQuery($v); |
||
| 587 | |||
| 588 | // Always last since it will give alias if needed |
||
| 589 | $sql .= $this->processColRef($v); |
||
| 590 | |||
| 591 | if ($len == strlen($sql)) { |
||
| 592 | throw new RDatabaseSqlparserExceptioncreatesql('expression subtree', $k, $v, 'expr_type'); |
||
| 593 | } |
||
| 594 | |||
| 595 | $sql .= ($this->isReserved($v) || $this->isOperator($v) ? " " : $delim); |
||
| 596 | } |
||
| 597 | |||
| 598 | $sql = substr($sql, 0, -1); |
||
| 599 | |||
| 600 | return $sql; |
||
| 601 | } |
||
| 602 | |||
| 603 | protected function processRefClause($parsed) { |
||
| 604 | if ($parsed === false) { |
||
| 605 | return ""; |
||
| 606 | } |
||
| 607 | |||
| 608 | $sql = ""; |
||
| 609 | foreach ($parsed as $k => $v) { |
||
| 610 | $len = strlen($sql); |
||
| 611 | |||
| 612 | if (($this->isReserved($v) || $this->isOperator($v)) && !empty($sql) && substr($sql, -1) == ',') |
||
| 613 | { |
||
| 614 | $sql = substr($sql, 0, -1) . ' '; |
||
| 615 | } |
||
| 616 | |||
| 617 | $sql .= $this->processReserved($v); |
||
| 618 | $sql .= $this->processColRef($v); |
||
| 619 | $sql .= $this->processFunction($v); |
||
| 620 | $sql .= $this->processOperator($v); |
||
| 621 | $sql .= $this->processInList($v); |
||
| 622 | $sql .= $this->processConstant($v); |
||
| 623 | $sql .= $this->processSelectBracketExpression($v); |
||
| 624 | $sql .= $this->processSelectExpression($v); |
||
| 625 | $sql .= $this->processSubQuery($v); |
||
| 626 | |||
| 627 | if ($len == strlen($sql)) { |
||
| 628 | throw new RDatabaseSqlparserExceptioncreatesql('expression ref_clause', $k, $v, 'expr_type'); |
||
| 629 | } |
||
| 630 | |||
| 631 | $sql .= " "; |
||
| 632 | } |
||
| 633 | return "(" . substr($sql, 0, -1) . ")"; |
||
| 634 | } |
||
| 635 | |||
| 636 | protected function processAlias($parsed) { |
||
| 637 | if ($parsed === false) { |
||
| 638 | return ""; |
||
| 639 | } |
||
| 640 | $sql = ""; |
||
| 641 | if (!empty($parsed['as'])) { |
||
| 642 | $sql .= " as"; |
||
| 643 | } |
||
| 644 | if (!empty($parsed['name'])) { |
||
| 645 | $sql .= " " . $parsed['name']; |
||
| 646 | } |
||
| 647 | |||
| 648 | return $sql; |
||
| 649 | } |
||
| 650 | |||
| 651 | protected function processJoin($parsed) { |
||
| 652 | if ($parsed === 'CROSS') { |
||
| 653 | return ","; |
||
| 654 | } |
||
| 655 | if ($parsed === 'JOIN') { |
||
| 656 | return "INNER JOIN"; |
||
| 657 | } |
||
| 658 | if ($parsed === 'LEFT') { |
||
| 659 | return "LEFT JOIN"; |
||
| 660 | } |
||
| 661 | if ($parsed === 'RIGHT') { |
||
| 662 | return "RIGHT JOIN"; |
||
| 663 | } |
||
| 664 | // TODO: add more |
||
| 665 | throw new Exception($parsed, 20); |
||
| 666 | } |
||
| 667 | |||
| 668 | protected function processRefType($parsed) { |
||
| 669 | if ($parsed === false) { |
||
| 670 | return ""; |
||
| 671 | } |
||
| 672 | if ($parsed === 'ON') { |
||
| 673 | return " ON "; |
||
| 674 | } |
||
| 675 | if ($parsed === 'USING') { |
||
| 676 | return " USING "; |
||
| 677 | } |
||
| 678 | // TODO: add more |
||
| 679 | throw new Exception($parsed, 20); |
||
| 680 | } |
||
| 681 | |||
| 682 | protected function processTable($parsed, $index) { |
||
| 683 | if ($parsed['expr_type'] !== 'table') { |
||
| 684 | return ""; |
||
| 685 | } |
||
| 686 | |||
| 687 | $sql = $parsed['table']; |
||
| 688 | $sql .= $this->processAlias($parsed['alias']); |
||
| 689 | |||
| 690 | if ($index !== 0) { |
||
| 691 | $sql = $this->processJoin($parsed['join_type']) . " " . $sql; |
||
| 692 | $sql .= $this->processRefType($parsed['ref_type']); |
||
| 693 | $sql .= $this->processRefClause($parsed['ref_clause']); |
||
| 694 | } |
||
| 695 | return $sql; |
||
| 696 | } |
||
| 697 | |||
| 698 | protected function processTableExpression($parsed, $index) { |
||
| 699 | if ($parsed['expr_type'] !== 'table_expression') { |
||
| 700 | return ""; |
||
| 701 | } |
||
| 702 | $sql = substr($this->processFROM($parsed['sub_tree']), 5); // remove FROM keyword |
||
| 703 | $sql = "(" . $sql . ")"; |
||
| 704 | |||
| 705 | if (isset($parsed['alias'])) { |
||
| 706 | $sql .= $this->processAlias($parsed['alias']); |
||
| 707 | } |
||
| 708 | |||
| 709 | if ($index !== 0) { |
||
| 710 | $sql = $this->processJoin($parsed['join_type']) . " " . $sql; |
||
| 711 | $sql .= $this->processRefType($parsed['ref_type']); |
||
| 712 | $sql .= $this->processRefClause($parsed['ref_clause']); |
||
| 713 | } |
||
| 714 | return $sql; |
||
| 715 | } |
||
| 716 | |||
| 717 | protected function processSubQuery($parsed, $index = 0) |
||
| 718 | { |
||
| 719 | if ($parsed['expr_type'] !== 'subquery') |
||
| 720 | { |
||
| 721 | return ""; |
||
| 722 | } |
||
| 723 | |||
| 724 | // We handle subqueries in a loop in sqltranslation file |
||
| 725 | $sql = $parsed['base_expr']; |
||
| 726 | $sql = "(" . $sql . ")"; |
||
| 727 | |||
| 728 | if (isset($parsed['alias'])) |
||
| 729 | { |
||
| 730 | $sql .= $this->processAlias($parsed['alias']); |
||
| 731 | } |
||
| 732 | |||
| 733 | if ($index !== 0) |
||
| 734 | { |
||
| 735 | $sql = $this->processJoin($parsed['join_type']) . " " . $sql; |
||
| 736 | $sql .= $this->processRefType($parsed['ref_type']); |
||
| 737 | $sql .= $this->processRefClause($parsed['ref_clause']); |
||
| 738 | } |
||
| 739 | |||
| 740 | return $sql; |
||
| 741 | } |
||
| 742 | |||
| 743 | protected function processOperator($parsed) { |
||
| 744 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'operator') { |
||
| 745 | return ""; |
||
| 746 | } |
||
| 747 | return $parsed['base_expr']; |
||
| 748 | } |
||
| 749 | |||
| 750 | protected function processColRef($parsed) { |
||
| 751 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'colref') { |
||
| 752 | return ""; |
||
| 753 | } |
||
| 754 | $sql = $parsed['base_expr']; |
||
| 755 | if (isset($parsed['alias'])) { |
||
| 756 | $sql .= $this->processAlias($parsed['alias']); |
||
| 757 | } |
||
| 758 | if (isset($parsed['direction'])) { |
||
| 759 | $sql .= $this->processDirection($parsed['direction']); |
||
| 760 | } |
||
| 761 | return $sql; |
||
| 762 | } |
||
| 763 | |||
| 764 | protected function processDirection($parsed) { |
||
| 765 | $sql = ($parsed ? " " . $parsed : ""); |
||
| 766 | return $sql; |
||
| 767 | } |
||
| 768 | |||
| 769 | protected function processReserved($parsed) |
||
| 770 | { |
||
| 771 | if (!$this->isReserved($parsed)) |
||
| 772 | { |
||
| 773 | return ""; |
||
| 774 | } |
||
| 775 | |||
| 776 | $sql = $parsed['base_expr']; |
||
| 777 | |||
| 778 | if (isset($parsed['alias'])) |
||
| 779 | { |
||
| 780 | $sql .= $this->processAlias($parsed['alias']); |
||
| 781 | } |
||
| 782 | |||
| 783 | return $sql; |
||
| 784 | } |
||
| 785 | |||
| 786 | protected function isReserved($parsed) { |
||
| 787 | return (!empty($parsed['expr_type']) && $parsed['expr_type'] === 'reserved'); |
||
| 788 | } |
||
| 789 | |||
| 790 | protected function isOperator($parsed) { |
||
| 792 | } |
||
| 793 | |||
| 794 | protected function processConstant($parsed) { |
||
| 795 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'const') { |
||
| 796 | return ""; |
||
| 797 | } |
||
| 798 | |||
| 799 | $sql = $parsed['base_expr']; |
||
| 800 | |||
| 801 | if (isset($parsed['alias'])) { |
||
| 802 | $sql .= $this->processAlias($parsed['alias']); |
||
| 803 | } |
||
| 804 | |||
| 805 | return $sql; |
||
| 806 | } |
||
| 807 | |||
| 808 | protected function processUserVariable($parsed) |
||
| 809 | { |
||
| 810 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'user_variable') |
||
| 811 | { |
||
| 812 | return ""; |
||
| 813 | } |
||
| 814 | |||
| 815 | $sql = $parsed['base_expr']; |
||
| 816 | |||
| 817 | if (isset($parsed['alias'])) |
||
| 818 | { |
||
| 819 | $sql .= $this->processAlias($parsed['alias']); |
||
| 820 | } |
||
| 821 | |||
| 823 | } |
||
| 824 | |||
| 825 | protected function processInList($parsed) { |
||
| 826 | if (empty($parsed['expr_type']) || $parsed['expr_type'] !== 'in-list') { |
||
| 827 | return ""; |
||
| 828 | } |
||
| 829 | $sql = $this->processSubTree($parsed, ","); |
||
| 830 | return "(" . $sql . ")"; |
||
| 831 | } |
||
| 832 | |||
| 833 | } |
||
| 834 |
