yiisoft /
yii2
Complex classes like Command 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 Command, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 57 | class Command extends Component |
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| 58 | { |
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| 59 | /** |
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| 60 | * @event Event an event that is triggered after a command is executed |
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| 61 | * @since 2.0.14 |
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| 62 | */ |
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| 63 | const EVENT_AFTER_EXECUTE = 'afterExecute'; |
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| 64 | |||
| 65 | /** |
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| 66 | * @var Connection the DB connection that this command is associated with |
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| 67 | */ |
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| 68 | public $db; |
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| 69 | /** |
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| 70 | * @var \PDOStatement the PDOStatement object that this command is associated with |
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| 71 | */ |
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| 72 | public $pdoStatement; |
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| 73 | /** |
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| 74 | * @var int the default fetch mode for this command. |
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| 75 | * @see http://www.php.net/manual/en/pdostatement.setfetchmode.php |
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| 76 | */ |
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| 77 | public $fetchMode = \PDO::FETCH_ASSOC; |
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| 78 | /** |
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| 79 | * @var array the parameters (name => value) that are bound to the current PDO statement. |
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| 80 | * This property is maintained by methods such as [[bindValue()]]. It is mainly provided for logging purpose |
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| 81 | * and is used to generate [[rawSql]]. Do not modify it directly. |
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| 82 | */ |
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| 83 | public $params = []; |
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| 84 | /** |
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| 85 | * @var int the default number of seconds that query results can remain valid in cache. |
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| 86 | * Use 0 to indicate that the cached data will never expire. And use a negative number to indicate |
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| 87 | * query cache should not be used. |
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| 88 | * @see cache() |
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| 89 | */ |
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| 90 | public $queryCacheDuration; |
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| 91 | /** |
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| 92 | * @var \yii\caching\Dependency the dependency to be associated with the cached query result for this command |
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| 93 | * @see cache() |
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| 94 | */ |
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| 95 | public $queryCacheDependency; |
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| 96 | |||
| 97 | /** |
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| 98 | * @var array pending parameters to be bound to the current PDO statement. |
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| 99 | */ |
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| 100 | private $_pendingParams = []; |
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| 101 | /** |
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| 102 | * @var string the SQL statement that this command represents |
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| 103 | */ |
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| 104 | private $_sql; |
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| 105 | /** |
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| 106 | * @var string name of the table, which schema, should be refreshed after command execution. |
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| 107 | */ |
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| 108 | private $_refreshTableName; |
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| 109 | /** |
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| 110 | * @var string|false|null the isolation level to use for this transaction. |
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| 111 | * See [[Transaction::begin()]] for details. |
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| 112 | */ |
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| 113 | private $_isolationLevel = false; |
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| 114 | /** |
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| 115 | * @var callable a callable (e.g. anonymous function) that is called when [[\yii\db\Exception]] is thrown |
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| 116 | * when executing the command. |
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| 117 | */ |
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| 118 | private $_retryHandler; |
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| 119 | |||
| 120 | |||
| 121 | /** |
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| 122 | * Enables query cache for this command. |
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| 123 | * @param int $duration the number of seconds that query result of this command can remain valid in the cache. |
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| 124 | * If this is not set, the value of [[Connection::queryCacheDuration]] will be used instead. |
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| 125 | * Use 0 to indicate that the cached data will never expire. |
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| 126 | * @param \yii\caching\Dependency $dependency the cache dependency associated with the cached query result. |
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| 127 | * @return $this the command object itself |
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| 128 | */ |
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| 129 | 3 | public function cache($duration = null, $dependency = null) |
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| 135 | |||
| 136 | /** |
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| 137 | * Disables query cache for this command. |
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| 138 | * @return $this the command object itself |
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| 139 | */ |
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| 140 | 3 | public function noCache() |
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| 145 | |||
| 146 | /** |
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| 147 | * Returns the SQL statement for this command. |
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| 148 | * @return string the SQL statement to be executed |
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| 149 | */ |
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| 150 | 1222 | public function getSql() |
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| 154 | |||
| 155 | /** |
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| 156 | * Specifies the SQL statement to be executed. The SQL statement will be quoted using [[Connection::quoteSql()]]. |
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| 157 | * The previous SQL (if any) will be discarded, and [[params]] will be cleared as well. See [[reset()]] |
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| 158 | * for details. |
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| 159 | * |
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| 160 | * @param string $sql the SQL statement to be set. |
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| 161 | * @return $this this command instance |
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| 162 | * @see reset() |
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| 163 | * @see cancel() |
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| 164 | */ |
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| 165 | 1243 | public function setSql($sql) |
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| 175 | |||
| 176 | /** |
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| 177 | * Specifies the SQL statement to be executed. The SQL statement will not be modified in any way. |
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| 178 | * The previous SQL (if any) will be discarded, and [[params]] will be cleared as well. See [[reset()]] |
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| 179 | * for details. |
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| 180 | * |
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| 181 | * @param string $sql the SQL statement to be set. |
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| 182 | * @return $this this command instance |
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| 183 | * @since 2.0.13 |
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| 184 | * @see reset() |
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| 185 | * @see cancel() |
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| 186 | */ |
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| 187 | 22 | public function setRawSql($sql) |
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| 197 | |||
| 198 | /** |
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| 199 | * Returns the raw SQL by inserting parameter values into the corresponding placeholders in [[sql]]. |
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| 200 | * Note that the return value of this method should mainly be used for logging purpose. |
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| 201 | * It is likely that this method returns an invalid SQL due to improper replacement of parameter placeholders. |
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| 202 | * @return string the raw SQL with parameter values inserted into the corresponding placeholders in [[sql]]. |
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| 203 | */ |
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| 204 | 1225 | public function getRawSql() |
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| 234 | |||
| 235 | /** |
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| 236 | * Prepares the SQL statement to be executed. |
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| 237 | * For complex SQL statement that is to be executed multiple times, |
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| 238 | * this may improve performance. |
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| 239 | * For SQL statement with binding parameters, this method is invoked |
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| 240 | * automatically. |
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| 241 | * @param bool $forRead whether this method is called for a read query. If null, it means |
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| 242 | * the SQL statement should be used to determine whether it is for read or write. |
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| 243 | * @throws Exception if there is any DB error |
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| 244 | */ |
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| 245 | 1210 | public function prepare($forRead = null) |
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| 273 | |||
| 274 | /** |
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| 275 | * Cancels the execution of the SQL statement. |
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| 276 | * This method mainly sets [[pdoStatement]] to be null. |
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| 277 | */ |
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| 278 | 1243 | public function cancel() |
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| 282 | |||
| 283 | /** |
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| 284 | * Binds a parameter to the SQL statement to be executed. |
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| 285 | * @param string|int $name parameter identifier. For a prepared statement |
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| 286 | * using named placeholders, this will be a parameter name of |
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| 287 | * the form `:name`. For a prepared statement using question mark |
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| 288 | * placeholders, this will be the 1-indexed position of the parameter. |
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| 289 | * @param mixed $value the PHP variable to bind to the SQL statement parameter (passed by reference) |
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| 290 | * @param int $dataType SQL data type of the parameter. If null, the type is determined by the PHP type of the value. |
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| 291 | * @param int $length length of the data type |
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| 292 | * @param mixed $driverOptions the driver-specific options |
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| 293 | * @return $this the current command being executed |
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| 294 | * @see http://www.php.net/manual/en/function.PDOStatement-bindParam.php |
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| 295 | */ |
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| 296 | 3 | public function bindParam($name, &$value, $dataType = null, $length = null, $driverOptions = null) |
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| 314 | |||
| 315 | /** |
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| 316 | * Binds pending parameters that were registered via [[bindValue()]] and [[bindValues()]]. |
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| 317 | * Note that this method requires an active [[pdoStatement]]. |
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| 318 | */ |
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| 319 | 1209 | protected function bindPendingParams() |
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| 326 | |||
| 327 | /** |
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| 328 | * Binds a value to a parameter. |
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| 329 | * @param string|int $name Parameter identifier. For a prepared statement |
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| 330 | * using named placeholders, this will be a parameter name of |
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| 331 | * the form `:name`. For a prepared statement using question mark |
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| 332 | * placeholders, this will be the 1-indexed position of the parameter. |
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| 333 | * @param mixed $value The value to bind to the parameter |
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| 334 | * @param int $dataType SQL data type of the parameter. If null, the type is determined by the PHP type of the value. |
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| 335 | * @return $this the current command being executed |
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| 336 | * @see http://www.php.net/manual/en/function.PDOStatement-bindValue.php |
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| 337 | */ |
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| 338 | 6 | public function bindValue($name, $value, $dataType = null) |
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| 348 | |||
| 349 | /** |
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| 350 | * Binds a list of values to the corresponding parameters. |
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| 351 | * This is similar to [[bindValue()]] except that it binds multiple values at a time. |
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| 352 | * Note that the SQL data type of each value is determined by its PHP type. |
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| 353 | * @param array $values the values to be bound. This must be given in terms of an associative |
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| 354 | * array with array keys being the parameter names, and array values the corresponding parameter values, |
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| 355 | * e.g. `[':name' => 'John', ':age' => 25]`. By default, the PDO type of each value is determined |
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| 356 | * by its PHP type. You may explicitly specify the PDO type by using a [[yii\db\PdoValue]] class: `new PdoValue(value, type)`, |
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| 357 | * e.g. `[':name' => 'John', ':profile' => new PdoValue($profile, \PDO::PARAM_LOB)]`. |
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| 358 | * @return $this the current command being executed |
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| 359 | */ |
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| 360 | 1243 | public function bindValues($values) |
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| 380 | |||
| 381 | /** |
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| 382 | * Executes the SQL statement and returns query result. |
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| 383 | * This method is for executing a SQL query that returns result set, such as `SELECT`. |
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| 384 | * @return DataReader the reader object for fetching the query result |
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| 385 | * @throws Exception execution failed |
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| 386 | */ |
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| 387 | 9 | public function query() |
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| 391 | |||
| 392 | /** |
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| 393 | * Executes the SQL statement and returns ALL rows at once. |
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| 394 | * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php) |
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| 395 | * for valid fetch modes. If this parameter is null, the value set in [[fetchMode]] will be used. |
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| 396 | * @return array all rows of the query result. Each array element is an array representing a row of data. |
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| 397 | * An empty array is returned if the query results in nothing. |
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| 398 | * @throws Exception execution failed |
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| 399 | */ |
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| 400 | 1047 | public function queryAll($fetchMode = null) |
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| 404 | |||
| 405 | /** |
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| 406 | * Executes the SQL statement and returns the first row of the result. |
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| 407 | * This method is best used when only the first row of result is needed for a query. |
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| 408 | * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](http://php.net/manual/en/pdostatement.setfetchmode.php) |
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| 409 | * for valid fetch modes. If this parameter is null, the value set in [[fetchMode]] will be used. |
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| 410 | * @return array|false the first row (in terms of an array) of the query result. False is returned if the query |
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| 411 | * results in nothing. |
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| 412 | * @throws Exception execution failed |
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| 413 | */ |
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| 414 | 439 | public function queryOne($fetchMode = null) |
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| 418 | |||
| 419 | /** |
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| 420 | * Executes the SQL statement and returns the value of the first column in the first row of data. |
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| 421 | * This method is best used when only a single value is needed for a query. |
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| 422 | * @return string|null|false the value of the first column in the first row of the query result. |
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| 423 | * False is returned if there is no value. |
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| 424 | * @throws Exception execution failed |
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| 425 | */ |
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| 426 | 278 | public function queryScalar() |
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| 435 | |||
| 436 | /** |
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| 437 | * Executes the SQL statement and returns the first column of the result. |
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| 438 | * This method is best used when only the first column of result (i.e. the first element in each row) |
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| 439 | * is needed for a query. |
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| 440 | * @return array the first column of the query result. Empty array is returned if the query results in nothing. |
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| 441 | * @throws Exception execution failed |
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| 442 | */ |
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| 443 | 77 | public function queryColumn() |
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| 447 | |||
| 448 | /** |
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| 449 | * Creates an INSERT command. |
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| 450 | * |
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| 451 | * For example, |
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| 452 | * |
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| 453 | * ```php |
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| 454 | * $connection->createCommand()->insert('user', [ |
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| 455 | * 'name' => 'Sam', |
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| 456 | * 'age' => 30, |
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| 457 | * ])->execute(); |
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| 458 | * ``` |
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| 459 | * |
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| 460 | * The method will properly escape the column names, and bind the values to be inserted. |
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| 461 | * |
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| 462 | * Note that the created command is not executed until [[execute()]] is called. |
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| 463 | * |
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| 464 | * @param string $table the table that new rows will be inserted into. |
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| 465 | * @param array|\yii\db\Query $columns the column data (name => value) to be inserted into the table or instance |
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| 466 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 467 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 468 | * @return $this the command object itself |
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| 469 | */ |
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| 470 | 440 | public function insert($table, $columns) |
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| 477 | |||
| 478 | /** |
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| 479 | * Creates a batch INSERT command. |
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| 480 | * |
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| 481 | * For example, |
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| 482 | * |
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| 483 | * ```php |
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| 484 | * $connection->createCommand()->batchInsert('user', ['name', 'age'], [ |
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| 485 | * ['Tom', 30], |
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| 486 | * ['Jane', 20], |
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| 487 | * ['Linda', 25], |
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| 488 | * ])->execute(); |
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| 489 | * ``` |
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| 490 | * |
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| 491 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 492 | * |
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| 493 | * Note that the values in each row must match the corresponding column names. |
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| 494 | * |
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| 495 | * Also note that the created command is not executed until [[execute()]] is called. |
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| 496 | * |
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| 497 | * @param string $table the table that new rows will be inserted into. |
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| 498 | * @param array $columns the column names |
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| 499 | * @param array|\Generator $rows the rows to be batch inserted into the table |
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| 500 | * @return $this the command object itself |
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| 501 | */ |
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| 502 | 22 | public function batchInsert($table, $columns, $rows) |
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| 515 | |||
| 516 | /** |
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| 517 | * Creates an UPDATE command. |
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| 518 | * |
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| 519 | * For example, |
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| 520 | * |
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| 521 | * ```php |
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| 522 | * $connection->createCommand()->update('user', ['status' => 1], 'age > 30')->execute(); |
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| 523 | * ``` |
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| 524 | * |
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| 525 | * or with using parameter binding for the condition: |
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| 526 | * |
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| 527 | * ```php |
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| 528 | * $minAge = 30; |
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| 529 | * $connection->createCommand()->update('user', ['status' => 1], 'age > :minAge', [':minAge' => $minAge])->execute(); |
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| 530 | * ``` |
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| 531 | * |
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| 532 | * The method will properly escape the column names and bind the values to be updated. |
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| 533 | * |
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| 534 | * Note that the created command is not executed until [[execute()]] is called. |
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| 535 | * |
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| 536 | * @param string $table the table to be updated. |
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| 537 | * @param array $columns the column data (name => value) to be updated. |
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| 538 | * @param string|array $condition the condition that will be put in the WHERE part. Please |
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| 539 | * refer to [[Query::where()]] on how to specify condition. |
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| 540 | * @param array $params the parameters to be bound to the command |
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| 541 | * @return $this the command object itself |
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| 542 | */ |
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| 543 | 109 | public function update($table, $columns, $condition = '', $params = []) |
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| 549 | |||
| 550 | /** |
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| 551 | * Creates a DELETE command. |
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| 552 | * |
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| 553 | * For example, |
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| 554 | * |
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| 555 | * ```php |
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| 556 | * $connection->createCommand()->delete('user', 'status = 0')->execute(); |
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| 557 | * ``` |
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| 558 | * |
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| 559 | * or with using parameter binding for the condition: |
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| 560 | * |
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| 561 | * ```php |
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| 562 | * $status = 0; |
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| 563 | * $connection->createCommand()->delete('user', 'status = :status', [':status' => $status])->execute(); |
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| 564 | * ``` |
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| 565 | * |
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| 566 | * The method will properly escape the table and column names. |
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| 567 | * |
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| 568 | * Note that the created command is not executed until [[execute()]] is called. |
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| 569 | * |
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| 570 | * @param string $table the table where the data will be deleted from. |
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| 571 | * @param string|array $condition the condition that will be put in the WHERE part. Please |
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| 572 | * refer to [[Query::where()]] on how to specify condition. |
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| 573 | * @param array $params the parameters to be bound to the command |
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| 574 | * @return $this the command object itself |
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| 575 | */ |
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| 576 | 344 | public function delete($table, $condition = '', $params = []) |
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| 582 | |||
| 583 | /** |
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| 584 | * Creates a SQL command for creating a new DB table. |
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| 585 | * |
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| 586 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 587 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 588 | * stands for the column type which can contain an abstract DB type. |
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| 589 | * The method [[QueryBuilder::getColumnType()]] will be called |
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| 590 | * to convert the abstract column types to physical ones. For example, `string` will be converted |
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| 591 | * as `varchar(255)`, and `string not null` becomes `varchar(255) not null`. |
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| 592 | * |
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| 593 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 594 | * inserted into the generated SQL. |
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| 595 | * |
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| 596 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 597 | * @param array $columns the columns (name => definition) in the new table. |
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| 598 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 599 | * @return $this the command object itself |
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| 600 | */ |
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| 601 | 125 | public function createTable($table, $columns, $options = null) |
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| 607 | |||
| 608 | /** |
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| 609 | * Creates a SQL command for renaming a DB table. |
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| 610 | * @param string $table the table to be renamed. The name will be properly quoted by the method. |
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| 611 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 612 | * @return $this the command object itself |
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| 613 | */ |
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| 614 | 3 | public function renameTable($table, $newName) |
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| 620 | |||
| 621 | /** |
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| 622 | * Creates a SQL command for dropping a DB table. |
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| 623 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 624 | * @return $this the command object itself |
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| 625 | */ |
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| 626 | 33 | public function dropTable($table) |
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| 632 | |||
| 633 | /** |
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| 634 | * Creates a SQL command for truncating a DB table. |
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| 635 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 636 | * @return $this the command object itself |
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| 637 | */ |
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| 638 | 13 | public function truncateTable($table) |
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| 644 | |||
| 645 | /** |
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| 646 | * Creates a SQL command for adding a new DB column. |
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| 647 | * @param string $table the table that the new column will be added to. The table name will be properly quoted by the method. |
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| 648 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 649 | * @param string $type the column type. [[\yii\db\QueryBuilder::getColumnType()]] will be called |
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| 650 | * to convert the give column type to the physical one. For example, `string` will be converted |
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| 651 | * as `varchar(255)`, and `string not null` becomes `varchar(255) not null`. |
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| 652 | * @return $this the command object itself |
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| 653 | */ |
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| 654 | 4 | public function addColumn($table, $column, $type) |
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| 660 | |||
| 661 | /** |
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| 662 | * Creates a SQL command for dropping a DB column. |
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| 663 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 664 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 665 | * @return $this the command object itself |
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| 666 | */ |
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| 667 | public function dropColumn($table, $column) |
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| 673 | |||
| 674 | /** |
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| 675 | * Creates a SQL command for renaming a column. |
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| 676 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 677 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 678 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 679 | * @return $this the command object itself |
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| 680 | */ |
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| 681 | public function renameColumn($table, $oldName, $newName) |
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| 687 | |||
| 688 | /** |
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| 689 | * Creates a SQL command for changing the definition of a column. |
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| 690 | * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
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| 691 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 692 | * @param string $type the column type. [[\yii\db\QueryBuilder::getColumnType()]] will be called |
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| 693 | * to convert the give column type to the physical one. For example, `string` will be converted |
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| 694 | * as `varchar(255)`, and `string not null` becomes `varchar(255) not null`. |
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| 695 | * @return $this the command object itself |
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| 696 | */ |
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| 697 | 2 | public function alterColumn($table, $column, $type) |
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| 703 | |||
| 704 | /** |
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| 705 | * Creates a SQL command for adding a primary key constraint to an existing table. |
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| 706 | * The method will properly quote the table and column names. |
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| 707 | * @param string $name the name of the primary key constraint. |
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| 708 | * @param string $table the table that the primary key constraint will be added to. |
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| 709 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 710 | * @return $this the command object itself. |
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| 711 | */ |
||
| 712 | 2 | public function addPrimaryKey($name, $table, $columns) |
|
| 718 | |||
| 719 | /** |
||
| 720 | * Creates a SQL command for removing a primary key constraint to an existing table. |
||
| 721 | * @param string $name the name of the primary key constraint to be removed. |
||
| 722 | * @param string $table the table that the primary key constraint will be removed from. |
||
| 723 | * @return $this the command object itself |
||
| 724 | */ |
||
| 725 | 2 | public function dropPrimaryKey($name, $table) |
|
| 731 | |||
| 732 | /** |
||
| 733 | * Creates a SQL command for adding a foreign key constraint to an existing table. |
||
| 734 | * The method will properly quote the table and column names. |
||
| 735 | * @param string $name the name of the foreign key constraint. |
||
| 736 | * @param string $table the table that the foreign key constraint will be added to. |
||
| 737 | * @param string|array $columns the name of the column to that the constraint will be added on. If there are multiple columns, separate them with commas. |
||
| 738 | * @param string $refTable the table that the foreign key references to. |
||
| 739 | * @param string|array $refColumns the name of the column that the foreign key references to. If there are multiple columns, separate them with commas. |
||
| 740 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 741 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 742 | * @return $this the command object itself |
||
| 743 | */ |
||
| 744 | 4 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
|
| 750 | |||
| 751 | /** |
||
| 752 | * Creates a SQL command for dropping a foreign key constraint. |
||
| 753 | * @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
||
| 754 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
||
| 755 | * @return $this the command object itself |
||
| 756 | */ |
||
| 757 | 4 | public function dropForeignKey($name, $table) |
|
| 763 | |||
| 764 | /** |
||
| 765 | * Creates a SQL command for creating a new index. |
||
| 766 | * @param string $name the name of the index. The name will be properly quoted by the method. |
||
| 767 | * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method. |
||
| 768 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, please separate them |
||
| 769 | * by commas. The column names will be properly quoted by the method. |
||
| 770 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
||
| 771 | * @return $this the command object itself |
||
| 772 | */ |
||
| 773 | 12 | public function createIndex($name, $table, $columns, $unique = false) |
|
| 779 | |||
| 780 | /** |
||
| 781 | * Creates a SQL command for dropping an index. |
||
| 782 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
||
| 783 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
||
| 784 | * @return $this the command object itself |
||
| 785 | */ |
||
| 786 | 3 | public function dropIndex($name, $table) |
|
| 792 | |||
| 793 | /** |
||
| 794 | * Creates a SQL command for adding an unique constraint to an existing table. |
||
| 795 | * @param string $name the name of the unique constraint. |
||
| 796 | * The name will be properly quoted by the method. |
||
| 797 | * @param string $table the table that the unique constraint will be added to. |
||
| 798 | * The name will be properly quoted by the method. |
||
| 799 | * @param string|array $columns the name of the column to that the constraint will be added on. |
||
| 800 | * If there are multiple columns, separate them with commas. |
||
| 801 | * The name will be properly quoted by the method. |
||
| 802 | * @return $this the command object itself. |
||
| 803 | * @since 2.0.13 |
||
| 804 | */ |
||
| 805 | 2 | public function addUnique($name, $table, $columns) |
|
| 811 | |||
| 812 | /** |
||
| 813 | * Creates a SQL command for dropping an unique constraint. |
||
| 814 | * @param string $name the name of the unique constraint to be dropped. |
||
| 815 | * The name will be properly quoted by the method. |
||
| 816 | * @param string $table the table whose unique constraint is to be dropped. |
||
| 817 | * The name will be properly quoted by the method. |
||
| 818 | * @return $this the command object itself. |
||
| 819 | * @since 2.0.13 |
||
| 820 | */ |
||
| 821 | 2 | public function dropUnique($name, $table) |
|
| 827 | |||
| 828 | /** |
||
| 829 | * Creates a SQL command for adding a check constraint to an existing table. |
||
| 830 | * @param string $name the name of the check constraint. |
||
| 831 | * The name will be properly quoted by the method. |
||
| 832 | * @param string $table the table that the check constraint will be added to. |
||
| 833 | * The name will be properly quoted by the method. |
||
| 834 | * @param string $expression the SQL of the `CHECK` constraint. |
||
| 835 | * @return $this the command object itself. |
||
| 836 | * @since 2.0.13 |
||
| 837 | */ |
||
| 838 | 1 | public function addCheck($name, $table, $expression) |
|
| 844 | |||
| 845 | /** |
||
| 846 | * Creates a SQL command for dropping a check constraint. |
||
| 847 | * @param string $name the name of the check constraint to be dropped. |
||
| 848 | * The name will be properly quoted by the method. |
||
| 849 | * @param string $table the table whose check constraint is to be dropped. |
||
| 850 | * The name will be properly quoted by the method. |
||
| 851 | * @return $this the command object itself. |
||
| 852 | * @since 2.0.13 |
||
| 853 | */ |
||
| 854 | 1 | public function dropCheck($name, $table) |
|
| 860 | |||
| 861 | /** |
||
| 862 | * Creates a SQL command for adding a default value constraint to an existing table. |
||
| 863 | * @param string $name the name of the default value constraint. |
||
| 864 | * The name will be properly quoted by the method. |
||
| 865 | * @param string $table the table that the default value constraint will be added to. |
||
| 866 | * The name will be properly quoted by the method. |
||
| 867 | * @param string $column the name of the column to that the constraint will be added on. |
||
| 868 | * The name will be properly quoted by the method. |
||
| 869 | * @param mixed $value default value. |
||
| 870 | * @return $this the command object itself. |
||
| 871 | * @since 2.0.13 |
||
| 872 | */ |
||
| 873 | public function addDefaultValue($name, $table, $column, $value) |
||
| 879 | |||
| 880 | /** |
||
| 881 | * Creates a SQL command for dropping a default value constraint. |
||
| 882 | * @param string $name the name of the default value constraint to be dropped. |
||
| 883 | * The name will be properly quoted by the method. |
||
| 884 | * @param string $table the table whose default value constraint is to be dropped. |
||
| 885 | * The name will be properly quoted by the method. |
||
| 886 | * @return $this the command object itself. |
||
| 887 | * @since 2.0.13 |
||
| 888 | */ |
||
| 889 | public function dropDefaultValue($name, $table) |
||
| 895 | |||
| 896 | /** |
||
| 897 | * Creates a SQL command for resetting the sequence value of a table's primary key. |
||
| 898 | * The sequence will be reset such that the primary key of the next new row inserted |
||
| 899 | * will have the specified value or 1. |
||
| 900 | * @param string $table the name of the table whose primary key sequence will be reset |
||
| 901 | * @param mixed $value the value for the primary key of the next new row inserted. If this is not set, |
||
| 902 | * the next new row's primary key will have a value 1. |
||
| 903 | * @return $this the command object itself |
||
| 904 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 905 | */ |
||
| 906 | 16 | public function resetSequence($table, $value = null) |
|
| 912 | |||
| 913 | /** |
||
| 914 | * Builds a SQL command for enabling or disabling integrity check. |
||
| 915 | * @param bool $check whether to turn on or off the integrity check. |
||
| 916 | * @param string $schema the schema name of the tables. Defaults to empty string, meaning the current |
||
| 917 | * or default schema. |
||
| 918 | * @param string $table the table name. |
||
| 919 | * @return $this the command object itself |
||
| 920 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 921 | */ |
||
| 922 | 4 | public function checkIntegrity($check = true, $schema = '', $table = '') |
|
| 928 | |||
| 929 | /** |
||
| 930 | * Builds a SQL command for adding comment to column. |
||
| 931 | * |
||
| 932 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 933 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 934 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 935 | * @return $this the command object itself |
||
| 936 | * @since 2.0.8 |
||
| 937 | */ |
||
| 938 | 2 | public function addCommentOnColumn($table, $column, $comment) |
|
| 944 | |||
| 945 | /** |
||
| 946 | * Builds a SQL command for adding comment to table. |
||
| 947 | * |
||
| 948 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 949 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 950 | * @return $this the command object itself |
||
| 951 | * @since 2.0.8 |
||
| 952 | */ |
||
| 953 | public function addCommentOnTable($table, $comment) |
||
| 959 | |||
| 960 | /** |
||
| 961 | * Builds a SQL command for dropping comment from column. |
||
| 962 | * |
||
| 963 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 964 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 965 | * @return $this the command object itself |
||
| 966 | * @since 2.0.8 |
||
| 967 | */ |
||
| 968 | 2 | public function dropCommentFromColumn($table, $column) |
|
| 974 | |||
| 975 | /** |
||
| 976 | * Builds a SQL command for dropping comment from table. |
||
| 977 | * |
||
| 978 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 979 | * @return $this the command object itself |
||
| 980 | * @since 2.0.8 |
||
| 981 | */ |
||
| 982 | public function dropCommentFromTable($table) |
||
| 988 | |||
| 989 | /** |
||
| 990 | * Creates a SQL View. |
||
| 991 | * |
||
| 992 | * @param string $viewName the name of the view to be created. |
||
| 993 | * @param string|Query $subquery the select statement which defines the view. |
||
| 994 | * This can be either a string or a [[Query]] object. |
||
| 995 | * @return $this the command object itself. |
||
| 996 | * @since 2.0.14 |
||
| 997 | */ |
||
| 998 | 3 | public function createView($viewName, $subquery) |
|
| 1004 | |||
| 1005 | /** |
||
| 1006 | * Drops a SQL View. |
||
| 1007 | * |
||
| 1008 | * @param string $viewName the name of the view to be dropped. |
||
| 1009 | * @return $this the command object itself. |
||
| 1010 | * @since 2.0.14 |
||
| 1011 | */ |
||
| 1012 | 3 | public function dropView($viewName) |
|
| 1018 | |||
| 1019 | /** |
||
| 1020 | * Executes the SQL statement. |
||
| 1021 | * This method should only be used for executing non-query SQL statement, such as `INSERT`, `DELETE`, `UPDATE` SQLs. |
||
| 1022 | * No result set will be returned. |
||
| 1023 | * @return int number of rows affected by the execution. |
||
| 1024 | * @throws Exception execution failed |
||
| 1025 | */ |
||
| 1026 | 624 | public function execute() |
|
| 1057 | |||
| 1058 | /** |
||
| 1059 | * Logs the current database query if query logging is enabled and returns |
||
| 1060 | * the profiling token if profiling is enabled. |
||
| 1061 | * @param string $category the log category. |
||
| 1062 | * @return array array of two elements, the first is boolean of whether profiling is enabled or not. |
||
| 1063 | * The second is the rawSql if it has been created. |
||
| 1064 | */ |
||
| 1065 | 1207 | private function logQuery($category) |
|
| 1077 | |||
| 1078 | /** |
||
| 1079 | * Performs the actual DB query of a SQL statement. |
||
| 1080 | * @param string $method method of PDOStatement to be called |
||
| 1081 | * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php) |
||
| 1082 | * for valid fetch modes. If this parameter is null, the value set in [[fetchMode]] will be used. |
||
| 1083 | * @return mixed the method execution result |
||
| 1084 | * @throws Exception if the query causes any problem |
||
| 1085 | * @since 2.0.1 this method is protected (was private before). |
||
| 1086 | */ |
||
| 1087 | 1166 | protected function queryInternal($method, $fetchMode = null) |
|
| 1142 | |||
| 1143 | /** |
||
| 1144 | * Marks a specified table schema to be refreshed after command execution. |
||
| 1145 | * @param string $name name of the table, which schema should be refreshed. |
||
| 1146 | * @return $this this command instance |
||
| 1147 | * @since 2.0.6 |
||
| 1148 | */ |
||
| 1149 | 134 | protected function requireTableSchemaRefresh($name) |
|
| 1154 | |||
| 1155 | /** |
||
| 1156 | * Refreshes table schema, which was marked by [[requireTableSchemaRefresh()]]. |
||
| 1157 | * @since 2.0.6 |
||
| 1158 | */ |
||
| 1159 | 618 | protected function refreshTableSchema() |
|
| 1165 | |||
| 1166 | /** |
||
| 1167 | * Marks the command to be executed in transaction. |
||
| 1168 | * @param string|null $isolationLevel The isolation level to use for this transaction. |
||
| 1169 | * See [[Transaction::begin()]] for details. |
||
| 1170 | * @return $this this command instance. |
||
| 1171 | * @since 2.0.14 |
||
| 1172 | */ |
||
| 1173 | 3 | protected function requireTransaction($isolationLevel = null) |
|
| 1178 | |||
| 1179 | /** |
||
| 1180 | * Sets a callable (e.g. anonymous function) that is called when [[Exception]] is thrown |
||
| 1181 | * when executing the command. The signature of the callable should be: |
||
| 1182 | * |
||
| 1183 | * ```php |
||
| 1184 | * function (\yii\db\Exception $e, $attempt) |
||
| 1185 | * { |
||
| 1186 | * // return true or false (whether to retry the command or rethrow $e) |
||
| 1187 | * } |
||
| 1188 | * ``` |
||
| 1189 | * |
||
| 1190 | * The callable will recieve a database exception thrown and a current attempt |
||
| 1191 | * (to execute the command) number starting from 1. |
||
| 1192 | * |
||
| 1193 | * @param callable $handler a PHP callback to handle database exceptions. |
||
| 1194 | * @return $this this command instance. |
||
| 1195 | * @since 2.0.14 |
||
| 1196 | */ |
||
| 1197 | 3 | protected function setRetryHandler(callable $handler) |
|
| 1202 | |||
| 1203 | /** |
||
| 1204 | * Executes a prepared statement. |
||
| 1205 | * |
||
| 1206 | * It's a wrapper around [[\PDOStatement::execute()]] to support transactions |
||
| 1207 | * and retry handlers. |
||
| 1208 | * |
||
| 1209 | * @param string|null $rawSql the rawSql if it has been created. |
||
| 1210 | * @throws Exception if execution failed. |
||
| 1211 | * @since 2.0.14 |
||
| 1212 | */ |
||
| 1213 | 1206 | protected function internalExecute($rawSql) |
|
| 1239 | |||
| 1240 | /** |
||
| 1241 | * Resets command properties to their initial state. |
||
| 1242 | * |
||
| 1243 | * @since 2.0.13 |
||
| 1244 | */ |
||
| 1245 | 1243 | protected function reset() |
|
| 1254 | } |
||
| 1255 |
