| Total Complexity | 41 |
| Total Lines | 251 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like MysqlDatabaseTable 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 MysqlDatabaseTable, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 11 | class MysqlDatabaseTable implements DatabaseInterface |
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| 12 | { |
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| 13 | |||
| 14 | use LoggerTrait; |
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| 15 | |||
| 16 | private $table; |
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| 17 | /** |
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| 18 | * @var MysqlDatabaseColumn[] |
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| 19 | */ |
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| 20 | private $columns = []; |
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| 21 | |||
| 22 | /** |
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| 23 | * @var MysqlDatabaseIndex[] |
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| 24 | */ |
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| 25 | private $indexes = []; |
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| 26 | |||
| 27 | /** |
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| 28 | * @var string |
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| 29 | */ |
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| 30 | private $collate; |
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| 31 | |||
| 32 | /** |
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| 33 | * DatabaseTableStructure constructor. |
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| 34 | * |
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| 35 | * @param $table |
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| 36 | * |
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| 37 | * @throws TablenameHasNotDefinedException |
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| 38 | */ |
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| 39 | public function __construct($table) |
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| 46 | } |
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| 47 | |||
| 48 | public function addColumn(MysqlDatabaseColumn $column) |
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| 49 | { |
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| 50 | $column->setTable($this->getTable()); |
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| 51 | $this->columns[$column->getName()] = $column; |
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| 52 | } |
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| 53 | |||
| 54 | /** |
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| 55 | * @return mixed |
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| 56 | */ |
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| 57 | public function getTable() |
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| 58 | { |
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| 59 | return $this->table; |
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| 60 | } |
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| 61 | |||
| 62 | public function removeColumn($columnName) |
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| 63 | { |
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| 64 | |||
| 65 | unset($this->columns[$columnName]); |
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| 66 | } |
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| 67 | |||
| 68 | public function addIndex(array $columns, $indexName = '') |
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| 69 | { |
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| 70 | $this->addIndexType($indexName, 0, $columns); |
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| 71 | } |
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| 72 | |||
| 73 | /** |
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| 74 | * @param $indexName |
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| 75 | * @param $unique |
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| 76 | * @param array $columns |
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| 77 | */ |
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| 78 | protected function addIndexType($indexName, $unique, array $columns) |
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| 79 | { |
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| 80 | if (empty($indexName)) { |
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| 81 | $indexName = ($unique ? 'UNI_' : 'IDX_') . md5(implode(',', $columns)); |
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| 82 | } |
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| 83 | try { |
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| 84 | $index = new MysqlDatabaseIndex($indexName, $columns, $unique); |
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| 85 | $index->setTable($this->getTable()); |
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| 86 | $this->indexes[$indexName] = $index; |
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| 87 | } catch (\Exception $e) { |
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| 88 | |||
| 89 | } |
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| 90 | } |
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| 91 | |||
| 92 | public function addPrimary(array $columnName) |
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| 93 | { |
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| 94 | $this->addIndexType('PRIMARY', 1, $columnName); |
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| 95 | } |
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| 96 | |||
| 97 | public function addUnique(array $columnName, $indexName = '') |
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| 98 | { |
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| 99 | $this->addIndexType($indexName, 1, $columnName); |
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| 100 | } |
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| 101 | |||
| 102 | public function toArray() |
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| 103 | { |
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| 104 | $export = []; |
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| 105 | $export['columns'] = []; |
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| 106 | $columns = $this->getColumns(); |
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| 107 | foreach ($columns as $column) { |
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| 108 | $export['columns'][] = $column->toArray(); |
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| 109 | } |
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| 110 | |||
| 111 | $export['indexes'] = []; |
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| 112 | $indexes = $this->getIndexes(); |
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| 113 | foreach ($indexes as $index) { |
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| 114 | $export['indexes'][] = $index->toArray(); |
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| 115 | } |
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| 116 | |||
| 117 | return $export; |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * @return MysqlDatabaseColumn[] |
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| 122 | * |
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| 123 | * @throws TableHasNotColumnException |
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| 124 | */ |
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| 125 | public function getColumns() |
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| 126 | { |
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| 127 | if (!count($this->columns)) { |
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| 128 | $this->critical('You need to define columns for this table.', ['table' => $this->getTable()]); |
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| 129 | throw new TableHasNotColumnException(''); |
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| 130 | } |
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| 131 | |||
| 132 | return $this->columns; |
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| 133 | } |
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| 134 | |||
| 135 | public function getIndexes() |
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| 136 | { |
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| 137 | if (empty($this->indexes)) { |
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| 138 | $this->error("You don't have any index. Are you sure ?"); |
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| 139 | } |
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| 140 | |||
| 141 | return $this->indexes; |
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| 142 | } |
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| 143 | |||
| 144 | /** |
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| 145 | * @return array |
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| 146 | * |
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| 147 | * @throws TableHasNotColumnException |
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| 148 | */ |
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| 149 | public function createStatement() |
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| 150 | { |
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| 151 | $modifications = []; |
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| 152 | $modifications[] = [sprintf('CREATE TABLE IF NOT EXISTS `%s`', $this->getTable())]; |
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| 153 | $columns = $this->getColumns(); |
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| 154 | foreach ($columns as $column) { |
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| 155 | try { |
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| 156 | if ($this->getCollate() == '') { |
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| 157 | $column->setCollate(''); |
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| 158 | } |
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| 159 | $modifications[] = $column->createStatement(); |
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| 160 | } catch (TablenameHasNotDefinedException $e) { |
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| 161 | continue; |
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| 162 | } |
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| 163 | } |
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| 164 | $indexes = $this->getIndexes(); |
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| 165 | foreach ($indexes as $index) { |
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| 166 | try { |
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| 167 | if (!$this->getIndex($index->getName())) { |
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| 168 | continue; |
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| 169 | } |
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| 170 | $modifications[] = $index->createStatement(); |
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| 171 | } catch (\Exception $e) { |
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| 172 | $this->critical('Unexpected error are throw.', ['table' => $this->getTable(), 'index' => $index->getName()]); |
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| 173 | continue; |
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| 174 | } |
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| 175 | } |
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| 176 | |||
| 177 | if (!$modifications = $this->formatStatements($modifications)) { |
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| 178 | return []; |
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| 179 | } |
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| 180 | |||
| 181 | return $this->formatCreateStatement($modifications); |
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| 182 | |||
| 183 | } |
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| 184 | |||
| 185 | /** |
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| 186 | * @return string |
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| 187 | */ |
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| 188 | public function getCollate() |
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| 189 | { |
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| 190 | return $this->collate; |
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| 191 | } |
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| 192 | |||
| 193 | /** |
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| 194 | * @param $indexName |
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| 195 | * |
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| 196 | * @return MysqlDatabaseIndex |
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| 197 | * |
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| 198 | * @throws \RuntimeException |
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| 199 | */ |
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| 200 | public function getIndex($indexName) |
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| 201 | { |
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| 202 | |||
| 203 | if (empty($this->indexes[$indexName])) { |
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| 204 | $this->critical('You attempt to get undefined index name.', ['index' => $indexName]); |
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| 205 | throw new \RuntimeException(''); |
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| 206 | } |
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| 207 | |||
| 208 | return $this->indexes[$indexName]; |
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| 209 | } |
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| 210 | |||
| 211 | /** |
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| 212 | * @param array $modificationsBetweenTable |
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| 213 | * |
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| 214 | * @return array |
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| 215 | */ |
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| 216 | private function formatStatements(array $modificationsBetweenTable) |
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| 217 | { |
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| 218 | $statements = []; |
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| 219 | foreach ($modificationsBetweenTable as $modifications) { |
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| 220 | foreach ((array)$modifications as $modification) { |
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| 221 | $statements[] = $modification; |
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| 222 | } |
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| 223 | } |
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| 224 | |||
| 225 | return array_filter(array_unique($statements)); |
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| 226 | } |
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| 227 | |||
| 228 | private function formatCreateStatement(array $modifications) |
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| 240 | } |
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| 241 | |||
| 242 | /** |
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| 243 | * @param string $collate |
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| 244 | */ |
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| 245 | public function setCollate($collate) |
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| 246 | { |
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| 247 | $this->collate = $collate; |
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| 248 | } |
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| 249 | |||
| 250 | /** |
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| 251 | * |
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| 252 | * @throws \RuntimeException |
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| 253 | */ |
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| 254 | public function alterStatement() |
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| 262 | } |
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| 263 | |||
| 265 |