Complex classes like Connection 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 Connection, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 28 | class Connection extends Doctrine\DBAL\Connection |
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| 29 | { |
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| 30 | /** |
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| 31 | * @var bool |
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| 32 | */ |
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| 33 | public $throwOldKdybyExceptions = FALSE; |
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| 34 | |||
| 35 | /** @deprecated */ |
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| 36 | const MYSQL_ERR_UNIQUE = 1062; |
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| 37 | /** @deprecated */ |
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| 38 | const MYSQL_ERR_NOT_NULL = 1048; |
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| 39 | |||
| 40 | /** @deprecated */ |
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| 41 | const SQLITE_ERR_UNIQUE = 19; |
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| 42 | |||
| 43 | /** @deprecated */ |
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| 44 | const POSTGRE_ERR_UNIQUE = 23505; // todo: verify, source: http://www.postgresql.org/docs/8.2/static/errcodes-appendix.html |
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| 45 | |||
| 46 | /** |
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| 47 | * @var Doctrine\ORM\EntityManager |
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| 48 | */ |
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| 49 | private $entityManager; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var array |
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| 53 | */ |
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| 54 | private $schemaTypes = []; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var array |
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| 58 | */ |
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| 59 | private $dbalTypes = []; |
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| 60 | |||
| 61 | |||
| 62 | |||
| 63 | /** |
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| 64 | * @internal |
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| 65 | * @param Doctrine\ORM\EntityManager $em |
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| 66 | * @return $this |
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| 67 | */ |
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| 68 | public function bindEntityManager(Doctrine\ORM\EntityManager $em) |
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| 73 | |||
| 74 | |||
| 75 | |||
| 76 | /** |
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| 77 | * Tries to autodetect, if identifier has to be quoted and quotes it. |
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| 78 | * |
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| 79 | * @param string $expression |
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| 80 | * @return string |
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| 81 | */ |
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| 82 | public function quoteIdentifier($expression) |
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| 91 | |||
| 92 | |||
| 93 | |||
| 94 | /** |
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| 95 | * {@inheritdoc} |
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| 96 | */ |
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| 97 | public function delete($tableExpression, array $identifier, array $types = []) |
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| 98 | { |
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| 99 | $fixedIdentifier = []; |
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| 100 | foreach ($identifier as $columnName => $value) { |
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| 101 | $fixedIdentifier[$this->quoteIdentifier($columnName)] = $value; |
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| 102 | } |
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| 103 | |||
| 104 | return parent::delete($this->quoteIdentifier($tableExpression), $fixedIdentifier, $types); |
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| 105 | } |
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| 106 | |||
| 107 | |||
| 108 | |||
| 109 | /** |
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| 110 | * {@inheritdoc} |
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| 111 | */ |
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| 112 | public function update($tableExpression, array $data, array $identifier, array $types = []) |
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| 113 | { |
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| 114 | $fixedData = []; |
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| 115 | foreach ($data as $columnName => $value) { |
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| 116 | $fixedData[$this->quoteIdentifier($columnName)] = $value; |
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| 117 | } |
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| 118 | |||
| 119 | $fixedIdentifier = []; |
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| 120 | foreach ($identifier as $columnName => $value) { |
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| 121 | $fixedIdentifier[$this->quoteIdentifier($columnName)] = $value; |
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| 122 | } |
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| 123 | |||
| 124 | return parent::update($this->quoteIdentifier($tableExpression), $fixedData, $fixedIdentifier, $types); |
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| 125 | } |
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| 126 | |||
| 127 | |||
| 128 | |||
| 129 | /** |
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| 130 | * {@inheritdoc} |
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| 131 | */ |
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| 132 | public function insert($tableExpression, array $data, array $types = []) |
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| 133 | { |
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| 134 | $fixedData = []; |
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| 135 | foreach ($data as $columnName => $value) { |
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| 136 | $fixedData[$this->quoteIdentifier($columnName)] = $value; |
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| 137 | } |
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| 138 | |||
| 139 | return parent::insert($this->quoteIdentifier($tableExpression), $fixedData, $types); |
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| 140 | } |
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| 141 | |||
| 142 | |||
| 143 | |||
| 144 | /** |
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| 145 | * @param string $query |
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| 146 | * @param array $params |
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| 147 | * @param array $types |
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| 148 | * @param \Doctrine\DBAL\Cache\QueryCacheProfile $qcp |
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| 149 | * @return \Doctrine\DBAL\Driver\Statement |
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| 150 | * @throws DBALException |
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| 151 | */ |
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| 152 | public function executeQuery($query, array $params = [], $types = [], Doctrine\DBAL\Cache\QueryCacheProfile $qcp = NULL) |
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| 161 | |||
| 162 | |||
| 163 | |||
| 164 | /** |
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| 165 | * @param string $query |
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| 166 | * @param array $params |
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| 167 | * @param array $types |
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| 168 | * @return int |
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| 169 | * @throws DBALException |
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| 170 | */ |
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| 171 | public function executeUpdate($query, array $params = [], array $types = []) |
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| 180 | |||
| 181 | |||
| 182 | |||
| 183 | /** |
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| 184 | * @param string $statement |
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| 185 | * @return int |
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| 186 | * @throws DBALException |
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| 187 | */ |
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| 188 | public function exec($statement) |
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| 197 | |||
| 198 | |||
| 199 | |||
| 200 | /** |
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| 201 | * @return \Doctrine\DBAL\Driver\Statement|mixed |
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| 202 | * @throws DBALException |
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| 203 | */ |
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| 204 | public function query() |
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| 214 | |||
| 215 | |||
| 216 | |||
| 217 | /** |
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| 218 | * Prepares an SQL statement. |
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| 219 | * |
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| 220 | * @param string $statement The SQL statement to prepare. |
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| 221 | * @throws DBALException |
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| 222 | * @return PDOStatement The prepared statement. |
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| 223 | */ |
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| 224 | public function prepare($statement) |
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| 239 | |||
| 240 | |||
| 241 | |||
| 242 | /** |
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| 243 | * @return Doctrine\DBAL\Query\QueryBuilder|NativeQueryBuilder |
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| 244 | */ |
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| 245 | public function createQueryBuilder() |
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| 253 | |||
| 254 | |||
| 255 | |||
| 256 | /** |
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| 257 | * @param array $schemaTypes |
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| 258 | */ |
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| 259 | public function setSchemaTypes(array $schemaTypes) |
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| 263 | |||
| 264 | |||
| 265 | |||
| 266 | /** |
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| 267 | * @param array $dbalTypes |
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| 268 | */ |
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| 269 | public function setDbalTypes(array $dbalTypes) |
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| 273 | |||
| 274 | |||
| 275 | |||
| 276 | public function connect() |
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| 277 | { |
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| 278 | if ($this->isConnected()) { |
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| 279 | return FALSE; |
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| 280 | } |
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| 281 | |||
| 282 | foreach ($this->dbalTypes as $name => $className) { |
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| 283 | if (Type::hasType($name)) { |
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| 284 | Type::overrideType($name, $className); |
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| 285 | |||
| 286 | } else { |
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| 287 | Type::addType($name, $className); |
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| 288 | } |
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| 289 | } |
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| 290 | |||
| 291 | parent::connect(); |
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| 292 | |||
| 293 | $platform = $this->getDatabasePlatform(); |
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| 294 | |||
| 295 | foreach ($this->schemaTypes as $dbType => $doctrineType) { |
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| 296 | $platform->registerDoctrineTypeMapping($dbType, $doctrineType); |
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| 297 | } |
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| 298 | |||
| 299 | foreach ($this->dbalTypes as $type => $className) { |
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| 300 | $platform->markDoctrineTypeCommented(Type::getType($type)); |
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| 301 | } |
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| 302 | |||
| 303 | return TRUE; |
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| 304 | } |
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| 305 | |||
| 306 | |||
| 307 | |||
| 308 | /** |
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| 309 | * @return Doctrine\DBAL\Platforms\AbstractPlatform |
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| 310 | */ |
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| 311 | public function getDatabasePlatform() |
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| 312 | { |
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| 313 | if (!$this->isConnected()) { |
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| 314 | $this->connect(); |
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| 315 | } |
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| 316 | |||
| 317 | return parent::getDatabasePlatform(); |
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| 318 | } |
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| 319 | |||
| 320 | |||
| 321 | |||
| 322 | public function ping() |
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| 323 | { |
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| 324 | $conn = $this->getWrappedConnection(); |
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| 325 | if ($conn instanceof Driver\PingableConnection) { |
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| 326 | return $conn->ping(); |
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| 327 | } |
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| 328 | |||
| 329 | set_error_handler(function ($severity, $message) { |
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| 330 | throw new \PDOException($message, $severity); |
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| 331 | }); |
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| 332 | |||
| 333 | try { |
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| 334 | $this->query($this->getDatabasePlatform()->getDummySelectSQL()); |
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| 335 | restore_error_handler(); |
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| 336 | |||
| 337 | return TRUE; |
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| 338 | |||
| 339 | } catch (Doctrine\DBAL\DBALException $e) { |
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| 340 | restore_error_handler(); |
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| 341 | return FALSE; |
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| 342 | |||
| 343 | } catch (\Exception $e) { |
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| 344 | restore_error_handler(); |
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| 345 | throw $e; |
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| 346 | } |
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| 347 | } |
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| 348 | |||
| 349 | |||
| 350 | |||
| 351 | /** |
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| 352 | * @param array $params |
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| 353 | * @param \Doctrine\DBAL\Configuration $config |
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| 354 | * @param \Doctrine\Common\EventManager $eventManager |
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| 355 | * @return Connection |
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| 356 | */ |
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| 357 | public static function create(array $params, Doctrine\DBAL\Configuration $config, EventManager $eventManager) |
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| 365 | |||
| 366 | |||
| 367 | |||
| 368 | /** |
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| 369 | * @deprecated |
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| 370 | * @internal |
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| 371 | * @param \Exception|\Throwable $e |
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| 372 | * @param string $query |
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| 373 | * @param array $params |
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| 374 | * @return DBALException |
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| 375 | */ |
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| 376 | public function resolveException($e, $query = NULL, $params = []) |
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| 377 | { |
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| 378 | if ($this->throwOldKdybyExceptions !== TRUE) { |
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| 379 | return $e; |
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| 380 | } |
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| 381 | |||
| 382 | if ($e instanceof Doctrine\DBAL\DBALException && ($pe = $e->getPrevious()) instanceof \PDOException) { |
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| 383 | $info = $pe->errorInfo; |
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| 384 | |||
| 385 | } elseif ($e instanceof \PDOException) { |
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| 386 | $info = $e->errorInfo; |
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| 387 | |||
| 388 | } else { |
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| 389 | return new DBALException($e, $query, $params, $this); |
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| 390 | } |
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| 391 | |||
| 392 | if ($this->getDriver() instanceof Doctrine\DBAL\Driver\PDOMySql\Driver) { |
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| 393 | if ($info[0] == 23000 && $info[1] == self::MYSQL_ERR_UNIQUE) { // unique fail |
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| 394 | $columns = []; |
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| 395 | |||
| 396 | try { |
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| 397 | if (preg_match('~Duplicate entry .*? for key \'([^\']+)\'~', $info[2], $m) |
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| 398 | && ($table = self::resolveExceptionTable($e)) |
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| 399 | && ($indexes = $this->getSchemaManager()->listTableIndexes($table)) |
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| 400 | && isset($indexes[$m[1]]) |
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| 401 | ) { |
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| 402 | $columns[$m[1]] = $indexes[$m[1]]->getColumns(); |
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| 403 | } |
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| 404 | |||
| 405 | } catch (\Exception $e) { } |
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| 406 | |||
| 407 | return new DuplicateEntryException($e, $columns, $query, $params, $this); |
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| 408 | |||
| 409 | } elseif ($info[0] == 23000 && $info[1] == self::MYSQL_ERR_NOT_NULL) { // notnull fail |
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| 410 | $column = NULL; |
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| 411 | if (preg_match('~Column \'([^\']+)\'~', $info[2], $m)) { |
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| 412 | $column = $m[1]; |
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| 413 | } |
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| 414 | |||
| 415 | return new EmptyValueException($e, $column, $query, $params, $this); |
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| 416 | } |
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| 417 | } |
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| 418 | |||
| 419 | $raw = $e; |
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| 420 | do { |
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| 421 | $raw = $raw->getPrevious(); |
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| 422 | } while ($raw && !$raw instanceof \PDOException); |
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| 423 | |||
| 424 | return new DBALException($e, $query, $params, $this, $raw ? $raw->getMessage() : $e->getMessage()); |
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| 425 | } |
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| 426 | |||
| 427 | |||
| 428 | |||
| 429 | /** |
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| 430 | * @param \Exception|\Throwable $e |
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| 431 | * @return string|NULL |
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| 432 | */ |
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| 433 | private static function resolveExceptionTable($e) |
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| 447 | |||
| 448 | |||
| 449 | |||
| 450 | /*************************** Nette\Object ***************************/ |
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| 451 | |||
| 452 | |||
| 453 | |||
| 454 | /** |
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| 455 | * Access to reflection. |
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| 456 | * @return \Nette\Reflection\ClassType |
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| 457 | */ |
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| 458 | public static function getReflection() |
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| 462 | |||
| 463 | |||
| 464 | |||
| 465 | /** |
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| 466 | * Call to undefined method. |
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| 467 | * |
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| 468 | * @param string $name |
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| 469 | * @param array $args |
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| 470 | * |
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| 471 | * @throws \Nette\MemberAccessException |
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| 472 | * @return mixed |
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| 473 | */ |
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| 474 | public function __call($name, $args) |
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| 478 | |||
| 479 | |||
| 480 | |||
| 481 | /** |
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| 482 | * Call to undefined static method. |
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| 483 | * |
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| 484 | * @param string $name |
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| 485 | * @param array $args |
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| 486 | * |
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| 487 | * @throws \Nette\MemberAccessException |
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| 488 | * @return mixed |
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| 489 | */ |
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| 490 | public static function __callStatic($name, $args) |
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| 494 | |||
| 495 | |||
| 496 | |||
| 497 | /** |
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| 498 | * Adding method to class. |
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| 499 | * |
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| 500 | * @param $name |
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| 501 | * @param null $callback |
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| 502 | * |
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| 503 | * @throws \Nette\MemberAccessException |
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| 504 | * @return callable|null |
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| 505 | */ |
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| 506 | public static function extensionMethod($name, $callback = NULL) |
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| 519 | |||
| 520 | |||
| 521 | |||
| 522 | /** |
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| 523 | * Returns property value. Do not call directly. |
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| 524 | * |
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| 525 | * @param string $name |
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| 526 | * |
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| 527 | * @throws \Nette\MemberAccessException |
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| 528 | * @return mixed |
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| 529 | */ |
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| 530 | public function &__get($name) |
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| 534 | |||
| 535 | |||
| 536 | |||
| 537 | /** |
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| 538 | * Sets value of a property. Do not call directly. |
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| 539 | * |
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| 540 | * @param string $name |
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| 541 | * @param mixed $value |
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| 542 | * |
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| 543 | * @throws \Nette\MemberAccessException |
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| 544 | * @return void |
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| 545 | */ |
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| 546 | public function __set($name, $value) |
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| 555 | |||
| 556 | |||
| 557 | |||
| 558 | /** |
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| 559 | * Is property defined? |
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| 560 | * |
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| 561 | * @param string $name |
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| 562 | * |
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| 563 | * @return bool |
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| 564 | */ |
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| 565 | public function __isset($name) |
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| 569 | |||
| 570 | |||
| 571 | |||
| 572 | /** |
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| 573 | * Access to undeclared property. |
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| 574 | * |
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| 575 | * @param string $name |
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| 576 | * |
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| 577 | * @throws \Nette\MemberAccessException |
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| 578 | * @return void |
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| 579 | */ |
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| 580 | public function __unset($name) |
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| 589 | |||
| 590 | } |
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| 591 |
This method has been deprecated.