yiisoft /
yii2
Complex classes like QueryBuilder 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 QueryBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class QueryBuilder extends \yii\base\BaseObject |
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| 27 | { |
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| 28 | /** |
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| 29 | * The prefix for automatically generated query binding parameters. |
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| 30 | */ |
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| 31 | const PARAM_PREFIX = ':qp'; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var Connection the database connection. |
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| 35 | */ |
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| 36 | public $db; |
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| 37 | /** |
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| 38 | * @var string the separator between different fragments of a SQL statement. |
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| 39 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 40 | */ |
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| 41 | public $separator = ' '; |
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| 42 | /** |
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| 43 | * @var array the abstract column types mapped to physical column types. |
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| 44 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 45 | * Child classes should override this property to declare supported type mappings. |
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| 46 | */ |
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| 47 | public $typeMap = []; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var array map of query condition to builder methods. |
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| 51 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 52 | */ |
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| 53 | protected $conditionBuilders = [ |
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| 54 | 'NOT' => 'buildNotCondition', |
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| 55 | 'AND' => 'buildAndCondition', |
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| 56 | 'OR' => 'buildAndCondition', |
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| 57 | 'BETWEEN' => 'buildBetweenCondition', |
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| 58 | 'NOT BETWEEN' => 'buildBetweenCondition', |
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| 59 | 'IN' => 'buildInCondition', |
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| 60 | 'NOT IN' => 'buildInCondition', |
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| 61 | 'LIKE' => 'buildLikeCondition', |
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| 62 | 'NOT LIKE' => 'buildLikeCondition', |
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| 63 | 'OR LIKE' => 'buildLikeCondition', |
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| 64 | 'OR NOT LIKE' => 'buildLikeCondition', |
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| 65 | 'EXISTS' => 'buildExistsCondition', |
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| 66 | 'NOT EXISTS' => 'buildExistsCondition', |
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| 67 | ]; |
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| 68 | /** |
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| 69 | * @var array map of chars to their replacements in LIKE conditions. |
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| 70 | * By default it's configured to escape `%`, `_` and `\` with `\`. |
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| 71 | * @since 2.0.12. |
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| 72 | */ |
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| 73 | protected $likeEscapingReplacements = [ |
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| 74 | '%' => '\%', |
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| 75 | '_' => '\_', |
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| 76 | '\\' => '\\\\', |
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| 77 | ]; |
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| 78 | /** |
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| 79 | * @var string|null character used to escape special characters in LIKE conditions. |
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| 80 | * By default it's assumed to be `\`. |
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| 81 | * @since 2.0.12 |
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| 82 | */ |
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| 83 | protected $likeEscapeCharacter; |
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| 84 | |||
| 85 | |||
| 86 | /** |
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| 87 | * Constructor. |
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| 88 | * @param Connection $connection the database connection. |
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| 89 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 90 | */ |
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| 91 | 1169 | public function __construct($connection, $config = []) |
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| 96 | |||
| 97 | /** |
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| 98 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 99 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 100 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 101 | * be included in the result with the additional parameters generated during the query building process. |
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| 102 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 103 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 104 | * include those provided in `$params`. |
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| 105 | */ |
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| 106 | 658 | public function build($query, $params = []) |
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| 131 | |||
| 132 | /** |
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| 133 | * Creates an INSERT SQL statement. |
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| 134 | * |
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| 135 | * For example, |
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| 136 | * |
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| 137 | * ```php |
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| 138 | * $sql = $queryBuilder->insert('user', [ |
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| 139 | * 'name' => 'Sam', |
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| 140 | * 'age' => 30, |
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| 141 | * ], $params); |
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| 142 | * ``` |
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| 143 | * |
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| 144 | * The method will properly escape the table and column names. |
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| 145 | * |
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| 146 | * @param string $table the table that new rows will be inserted into. |
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| 147 | * @param array|\yii\db\Query $columns the column data (name => value) to be inserted into the table or instance |
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| 148 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 149 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 150 | * @param array $params the binding parameters that will be generated by this method. |
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| 151 | * They should be bound to the DB command later. |
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| 152 | * @return string the INSERT SQL |
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| 153 | */ |
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| 154 | 266 | public function insert($table, $columns, &$params) |
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| 190 | |||
| 191 | /** |
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| 192 | * Prepare select-subquery and field names for INSERT INTO ... SELECT SQL statement. |
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| 193 | * |
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| 194 | * @param \yii\db\Query $columns Object, which represents select query. |
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| 195 | * @param \yii\db\Schema $schema Schema object to quote column name. |
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| 196 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 197 | * be included in the result with the additional parameters generated during the query building process. |
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| 198 | * @return array |
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| 199 | * @throws InvalidArgumentException if query's select does not contain named parameters only. |
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| 200 | * @since 2.0.11 |
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| 201 | */ |
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| 202 | 15 | protected function prepareInsertSelectSubQuery($columns, $schema, $params = []) |
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| 223 | |||
| 224 | /** |
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| 225 | * Generates a batch INSERT SQL statement. |
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| 226 | * |
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| 227 | * For example, |
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| 228 | * |
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| 229 | * ```php |
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| 230 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 231 | * ['Tom', 30], |
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| 232 | * ['Jane', 20], |
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| 233 | * ['Linda', 25], |
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| 234 | * ]); |
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| 235 | * ``` |
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| 236 | * |
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| 237 | * Note that the values in each row must match the corresponding column names. |
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| 238 | * |
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| 239 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 240 | * |
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| 241 | * @param string $table the table that new rows will be inserted into. |
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| 242 | * @param array $columns the column names |
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| 243 | * @param array|\Generator $rows the rows to be batch inserted into the table |
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| 244 | * @return string the batch INSERT SQL statement |
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| 245 | */ |
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| 246 | 22 | public function batchInsert($table, $columns, $rows) |
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| 291 | |||
| 292 | /** |
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| 293 | * Creates an UPDATE SQL statement. |
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| 294 | * |
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| 295 | * For example, |
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| 296 | * |
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| 297 | * ```php |
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| 298 | * $params = []; |
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| 299 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 300 | * ``` |
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| 301 | * |
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| 302 | * The method will properly escape the table and column names. |
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| 303 | * |
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| 304 | * @param string $table the table to be updated. |
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| 305 | * @param array $columns the column data (name => value) to be updated. |
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| 306 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 307 | * refer to [[Query::where()]] on how to specify condition. |
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| 308 | * @param array $params the binding parameters that will be modified by this method |
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| 309 | * so that they can be bound to the DB command later. |
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| 310 | * @return string the UPDATE SQL |
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| 311 | */ |
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| 312 | 92 | public function update($table, $columns, $condition, &$params) |
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| 339 | |||
| 340 | /** |
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| 341 | * Creates a DELETE SQL statement. |
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| 342 | * |
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| 343 | * For example, |
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| 344 | * |
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| 345 | * ```php |
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| 346 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 347 | * ``` |
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| 348 | * |
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| 349 | * The method will properly escape the table and column names. |
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| 350 | * |
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| 351 | * @param string $table the table where the data will be deleted from. |
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| 352 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 353 | * refer to [[Query::where()]] on how to specify condition. |
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| 354 | * @param array $params the binding parameters that will be modified by this method |
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| 355 | * so that they can be bound to the DB command later. |
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| 356 | * @return string the DELETE SQL |
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| 357 | */ |
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| 358 | 308 | public function delete($table, $condition, &$params) |
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| 365 | |||
| 366 | /** |
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| 367 | * Builds a SQL statement for creating a new DB table. |
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| 368 | * |
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| 369 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 370 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 371 | * stands for the column type which can contain an abstract DB type. |
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| 372 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 373 | * |
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| 374 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 375 | * inserted into the generated SQL. |
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| 376 | * |
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| 377 | * For example, |
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| 378 | * |
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| 379 | * ```php |
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| 380 | * $sql = $queryBuilder->createTable('user', [ |
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| 381 | * 'id' => 'pk', |
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| 382 | * 'name' => 'string', |
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| 383 | * 'age' => 'integer', |
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| 384 | * ]); |
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| 385 | * ``` |
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| 386 | * |
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| 387 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 388 | * @param array $columns the columns (name => definition) in the new table. |
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| 389 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 390 | * @return string the SQL statement for creating a new DB table. |
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| 391 | */ |
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| 392 | 110 | public function createTable($table, $columns, $options = null) |
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| 406 | |||
| 407 | /** |
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| 408 | * Builds a SQL statement for renaming a DB table. |
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| 409 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 410 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 411 | * @return string the SQL statement for renaming a DB table. |
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| 412 | */ |
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| 413 | 1 | public function renameTable($oldName, $newName) |
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| 417 | |||
| 418 | /** |
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| 419 | * Builds a SQL statement for dropping a DB table. |
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| 420 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 421 | * @return string the SQL statement for dropping a DB table. |
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| 422 | */ |
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| 423 | 19 | public function dropTable($table) |
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| 427 | |||
| 428 | /** |
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| 429 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 430 | * @param string $name the name of the primary key constraint. |
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| 431 | * @param string $table the table that the primary key constraint will be added to. |
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| 432 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 433 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 434 | */ |
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| 435 | 6 | public function addPrimaryKey($name, $table, $columns) |
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| 449 | |||
| 450 | /** |
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| 451 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 452 | * @param string $name the name of the primary key constraint to be removed. |
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| 453 | * @param string $table the table that the primary key constraint will be removed from. |
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| 454 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 455 | */ |
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| 456 | 2 | public function dropPrimaryKey($name, $table) |
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| 461 | |||
| 462 | /** |
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| 463 | * Builds a SQL statement for truncating a DB table. |
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| 464 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 465 | * @return string the SQL statement for truncating a DB table. |
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| 466 | */ |
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| 467 | 9 | public function truncateTable($table) |
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| 471 | |||
| 472 | /** |
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| 473 | * Builds a SQL statement for adding a new DB column. |
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| 474 | * @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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| 475 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 476 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 477 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 478 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 479 | * @return string the SQL statement for adding a new column. |
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| 480 | */ |
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| 481 | 4 | public function addColumn($table, $column, $type) |
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| 487 | |||
| 488 | /** |
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| 489 | * Builds a SQL statement for dropping a DB column. |
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| 490 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 491 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 492 | * @return string the SQL statement for dropping a DB column. |
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| 493 | */ |
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| 494 | public function dropColumn($table, $column) |
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| 499 | |||
| 500 | /** |
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| 501 | * Builds a SQL statement for renaming a column. |
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| 502 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 503 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 504 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 505 | * @return string the SQL statement for renaming a DB column. |
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| 506 | */ |
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| 507 | public function renameColumn($table, $oldName, $newName) |
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| 513 | |||
| 514 | /** |
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| 515 | * Builds a SQL statement for changing the definition of a column. |
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| 516 | * @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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| 517 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 518 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 519 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 520 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 521 | * will become 'varchar(255) not null'. |
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| 522 | * @return string the SQL statement for changing the definition of a column. |
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| 523 | */ |
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| 524 | 1 | public function alterColumn($table, $column, $type) |
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| 531 | |||
| 532 | /** |
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| 533 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 534 | * The method will properly quote the table and column names. |
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| 535 | * @param string $name the name of the foreign key constraint. |
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| 536 | * @param string $table the table that the foreign key constraint will be added to. |
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| 537 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 538 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 539 | * @param string $refTable the table that the foreign key references to. |
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| 540 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 541 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 542 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 543 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 544 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 545 | */ |
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| 546 | 8 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 562 | |||
| 563 | /** |
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| 564 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 565 | * @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
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| 566 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 567 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 568 | */ |
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| 569 | 3 | public function dropForeignKey($name, $table) |
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| 574 | |||
| 575 | /** |
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| 576 | * Builds a SQL statement for creating a new index. |
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| 577 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 578 | * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method. |
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| 579 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 580 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 581 | * by the method, unless a parenthesis is found in the name. |
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| 582 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
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| 583 | * @return string the SQL statement for creating a new index. |
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| 584 | */ |
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| 585 | 6 | public function createIndex($name, $table, $columns, $unique = false) |
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| 592 | |||
| 593 | /** |
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| 594 | * Builds a SQL statement for dropping an index. |
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| 595 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 596 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 597 | * @return string the SQL statement for dropping an index. |
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| 598 | */ |
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| 599 | 4 | public function dropIndex($name, $table) |
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| 603 | |||
| 604 | /** |
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| 605 | * Creates a SQL command for adding an unique constraint to an existing table. |
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| 606 | * @param string $name the name of the unique constraint. |
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| 607 | * The name will be properly quoted by the method. |
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| 608 | * @param string $table the table that the unique constraint will be added to. |
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| 609 | * The name will be properly quoted by the method. |
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| 610 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 611 | * If there are multiple columns, separate them with commas. |
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| 612 | * The name will be properly quoted by the method. |
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| 613 | * @return string the SQL statement for adding an unique constraint to an existing table. |
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| 614 | * @since 2.0.13 |
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| 615 | */ |
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| 616 | 6 | public function addUnique($name, $table, $columns) |
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| 629 | |||
| 630 | /** |
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| 631 | * Creates a SQL command for dropping an unique constraint. |
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| 632 | * @param string $name the name of the unique constraint to be dropped. |
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| 633 | * The name will be properly quoted by the method. |
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| 634 | * @param string $table the table whose unique constraint is to be dropped. |
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| 635 | * The name will be properly quoted by the method. |
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| 636 | * @return string the SQL statement for dropping an unique constraint. |
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| 637 | * @since 2.0.13 |
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| 638 | */ |
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| 639 | 2 | public function dropUnique($name, $table) |
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| 644 | |||
| 645 | /** |
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| 646 | * Creates a SQL command for adding a check constraint to an existing table. |
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| 647 | * @param string $name the name of the check constraint. |
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| 648 | * The name will be properly quoted by the method. |
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| 649 | * @param string $table the table that the check constraint will be added to. |
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| 650 | * The name will be properly quoted by the method. |
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| 651 | * @param string $expression the SQL of the `CHECK` constraint. |
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| 652 | * @return string the SQL statement for adding a check constraint to an existing table. |
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| 653 | * @since 2.0.13 |
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| 654 | */ |
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| 655 | 2 | public function addCheck($name, $table, $expression) |
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| 660 | |||
| 661 | /** |
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| 662 | * Creates a SQL command for dropping a check constraint. |
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| 663 | * @param string $name the name of the check constraint to be dropped. |
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| 664 | * The name will be properly quoted by the method. |
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| 665 | * @param string $table the table whose check constraint is to be dropped. |
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| 666 | * The name will be properly quoted by the method. |
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| 667 | * @return string the SQL statement for dropping a check constraint. |
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| 668 | * @since 2.0.13 |
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| 669 | */ |
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| 670 | 2 | public function dropCheck($name, $table) |
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| 675 | |||
| 676 | /** |
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| 677 | * Creates a SQL command for adding a default value constraint to an existing table. |
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| 678 | * @param string $name the name of the default value constraint. |
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| 679 | * The name will be properly quoted by the method. |
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| 680 | * @param string $table the table that the default value constraint will be added to. |
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| 681 | * The name will be properly quoted by the method. |
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| 682 | * @param string $column the name of the column to that the constraint will be added on. |
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| 683 | * The name will be properly quoted by the method. |
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| 684 | * @param mixed $value default value. |
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| 685 | * @return string the SQL statement for adding a default value constraint to an existing table. |
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| 686 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
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| 687 | * @since 2.0.13 |
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| 688 | */ |
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| 689 | public function addDefaultValue($name, $table, $column, $value) |
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| 693 | |||
| 694 | /** |
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| 695 | * Creates a SQL command for dropping a default value constraint. |
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| 696 | * @param string $name the name of the default value constraint to be dropped. |
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| 697 | * The name will be properly quoted by the method. |
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| 698 | * @param string $table the table whose default value constraint is to be dropped. |
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| 699 | * The name will be properly quoted by the method. |
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| 700 | * @return string the SQL statement for dropping a default value constraint. |
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| 701 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
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| 702 | * @since 2.0.13 |
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| 703 | */ |
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| 704 | public function dropDefaultValue($name, $table) |
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| 708 | |||
| 709 | /** |
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| 710 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 711 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 712 | * will have the specified value or 1. |
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| 713 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 714 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 715 | * the next new row's primary key will have a value 1. |
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| 716 | * @return string the SQL statement for resetting sequence |
||
| 717 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 718 | */ |
||
| 719 | public function resetSequence($table, $value = null) |
||
| 723 | |||
| 724 | /** |
||
| 725 | * Builds a SQL statement for enabling or disabling integrity check. |
||
| 726 | * @param bool $check whether to turn on or off the integrity check. |
||
| 727 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
||
| 728 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
||
| 729 | * @return string the SQL statement for checking integrity |
||
| 730 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 731 | */ |
||
| 732 | public function checkIntegrity($check = true, $schema = '', $table = '') |
||
| 736 | |||
| 737 | /** |
||
| 738 | * Builds a SQL command for adding comment to column. |
||
| 739 | * |
||
| 740 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 741 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 742 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 743 | * @return string the SQL statement for adding comment on column |
||
| 744 | * @since 2.0.8 |
||
| 745 | */ |
||
| 746 | 2 | public function addCommentOnColumn($table, $column, $comment) |
|
| 750 | |||
| 751 | /** |
||
| 752 | * Builds a SQL command for adding comment to table. |
||
| 753 | * |
||
| 754 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 755 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 756 | * @return string the SQL statement for adding comment on table |
||
| 757 | * @since 2.0.8 |
||
| 758 | */ |
||
| 759 | 1 | public function addCommentOnTable($table, $comment) |
|
| 763 | |||
| 764 | /** |
||
| 765 | * Builds a SQL command for adding comment to column. |
||
| 766 | * |
||
| 767 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 768 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 769 | * @return string the SQL statement for adding comment on column |
||
| 770 | * @since 2.0.8 |
||
| 771 | */ |
||
| 772 | 2 | public function dropCommentFromColumn($table, $column) |
|
| 776 | |||
| 777 | /** |
||
| 778 | * Builds a SQL command for adding comment to table. |
||
| 779 | * |
||
| 780 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 781 | * @return string the SQL statement for adding comment on column |
||
| 782 | * @since 2.0.8 |
||
| 783 | */ |
||
| 784 | 1 | public function dropCommentFromTable($table) |
|
| 788 | |||
| 789 | /** |
||
| 790 | * Converts an abstract column type into a physical column type. |
||
| 791 | * |
||
| 792 | * The conversion is done using the type map specified in [[typeMap]]. |
||
| 793 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
||
| 794 | * physical types): |
||
| 795 | * |
||
| 796 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 797 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 798 | * - `upk`: an unsigned auto-incremental primary key type, will be converted into "int(10) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 799 | * - `char`: char type, will be converted into "char(1)" |
||
| 800 | * - `string`: string type, will be converted into "varchar(255)" |
||
| 801 | * - `text`: a long string type, will be converted into "text" |
||
| 802 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
||
| 803 | * - `integer`: integer type, will be converted into "int(11)" |
||
| 804 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
||
| 805 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
||
| 806 | * - `float``: float number type, will be converted into "float" |
||
| 807 | * - `decimal`: decimal number type, will be converted into "decimal" |
||
| 808 | * - `datetime`: datetime type, will be converted into "datetime" |
||
| 809 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
||
| 810 | * - `time`: time type, will be converted into "time" |
||
| 811 | * - `date`: date type, will be converted into "date" |
||
| 812 | * - `money`: money type, will be converted into "decimal(19,4)" |
||
| 813 | * - `binary`: binary data type, will be converted into "blob" |
||
| 814 | * |
||
| 815 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
||
| 816 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
||
| 817 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
||
| 818 | * |
||
| 819 | * For some of the abstract types you can also specify a length or precision constraint |
||
| 820 | * by appending it in round brackets directly to the type. |
||
| 821 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
||
| 822 | * If the underlying DBMS does not support these kind of constraints for a type it will |
||
| 823 | * be ignored. |
||
| 824 | * |
||
| 825 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
||
| 826 | * @param string|ColumnSchemaBuilder $type abstract column type |
||
| 827 | * @return string physical column type. |
||
| 828 | */ |
||
| 829 | 114 | public function getColumnType($type) |
|
| 849 | |||
| 850 | /** |
||
| 851 | * @param array $columns |
||
| 852 | * @param array $params the binding parameters to be populated |
||
| 853 | * @param bool $distinct |
||
| 854 | * @param string $selectOption |
||
| 855 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 856 | */ |
||
| 857 | 956 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 895 | |||
| 896 | /** |
||
| 897 | * @param array $tables |
||
| 898 | * @param array $params the binding parameters to be populated |
||
| 899 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 900 | */ |
||
| 901 | 956 | public function buildFrom($tables, &$params) |
|
| 911 | |||
| 912 | /** |
||
| 913 | * @param array $joins |
||
| 914 | * @param array $params the binding parameters to be populated |
||
| 915 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 916 | * @throws Exception if the $joins parameter is not in proper format |
||
| 917 | */ |
||
| 918 | 956 | public function buildJoin($joins, &$params) |
|
| 943 | |||
| 944 | /** |
||
| 945 | * Quotes table names passed. |
||
| 946 | * |
||
| 947 | * @param array $tables |
||
| 948 | * @param array $params |
||
| 949 | * @return array |
||
| 950 | */ |
||
| 951 | 701 | private function quoteTableNames($tables, &$params) |
|
| 973 | |||
| 974 | /** |
||
| 975 | * @param string|array $condition |
||
| 976 | * @param array $params the binding parameters to be populated |
||
| 977 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 978 | */ |
||
| 979 | 1019 | public function buildWhere($condition, &$params) |
|
| 985 | |||
| 986 | /** |
||
| 987 | * @param array $columns |
||
| 988 | * @param array $params the binding parameters to be populated |
||
| 989 | * @return string the GROUP BY clause |
||
| 990 | */ |
||
| 991 | 956 | public function buildGroupBy($columns, &$params) |
|
| 1007 | |||
| 1008 | /** |
||
| 1009 | * @param string|array $condition |
||
| 1010 | * @param array $params the binding parameters to be populated |
||
| 1011 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 1012 | */ |
||
| 1013 | 956 | public function buildHaving($condition, &$params) |
|
| 1019 | |||
| 1020 | /** |
||
| 1021 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 1022 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 1023 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 1024 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 1025 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 1026 | * @param array $params the binding parameters to be populated |
||
| 1027 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 1028 | */ |
||
| 1029 | 956 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset, &$params) |
|
| 1042 | |||
| 1043 | /** |
||
| 1044 | * @param array $columns |
||
| 1045 | * @param array $params the binding parameters to be populated |
||
| 1046 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 1047 | */ |
||
| 1048 | 956 | public function buildOrderBy($columns, &$params) |
|
| 1065 | |||
| 1066 | /** |
||
| 1067 | * @param int $limit |
||
| 1068 | * @param int $offset |
||
| 1069 | * @return string the LIMIT and OFFSET clauses |
||
| 1070 | */ |
||
| 1071 | 320 | public function buildLimit($limit, $offset) |
|
| 1083 | |||
| 1084 | /** |
||
| 1085 | * Checks to see if the given limit is effective. |
||
| 1086 | * @param mixed $limit the given limit |
||
| 1087 | * @return bool whether the limit is effective |
||
| 1088 | */ |
||
| 1089 | 618 | protected function hasLimit($limit) |
|
| 1093 | |||
| 1094 | /** |
||
| 1095 | * Checks to see if the given offset is effective. |
||
| 1096 | * @param mixed $offset the given offset |
||
| 1097 | * @return bool whether the offset is effective |
||
| 1098 | */ |
||
| 1099 | 618 | protected function hasOffset($offset) |
|
| 1103 | |||
| 1104 | /** |
||
| 1105 | * @param array $unions |
||
| 1106 | * @param array $params the binding parameters to be populated |
||
| 1107 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 1108 | */ |
||
| 1109 | 658 | public function buildUnion($unions, &$params) |
|
| 1128 | |||
| 1129 | /** |
||
| 1130 | * Processes columns and properly quotes them if necessary. |
||
| 1131 | * It will join all columns into a string with comma as separators. |
||
| 1132 | * @param string|array $columns the columns to be processed |
||
| 1133 | * @return string the processing result |
||
| 1134 | */ |
||
| 1135 | 32 | public function buildColumns($columns) |
|
| 1154 | |||
| 1155 | /** |
||
| 1156 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 1157 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 1158 | * on how to specify a condition. |
||
| 1159 | * @param array $params the binding parameters to be populated |
||
| 1160 | * @return string the generated SQL expression |
||
| 1161 | */ |
||
| 1162 | 1019 | public function buildCondition($condition, &$params) |
|
| 1190 | |||
| 1191 | /** |
||
| 1192 | * Creates a condition based on column-value pairs. |
||
| 1193 | * @param array $condition the condition specification. |
||
| 1194 | * @param array $params the binding parameters to be populated |
||
| 1195 | * @return string the generated SQL expression |
||
| 1196 | */ |
||
| 1197 | 568 | public function buildHashCondition($condition, &$params) |
|
| 1225 | |||
| 1226 | /** |
||
| 1227 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1228 | * @param string $operator the operator to use for connecting the given operands |
||
| 1229 | * @param array $operands the SQL expressions to connect. |
||
| 1230 | * @param array $params the binding parameters to be populated |
||
| 1231 | * @return string the generated SQL expression |
||
| 1232 | */ |
||
| 1233 | 198 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1256 | |||
| 1257 | /** |
||
| 1258 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1259 | * @param string $operator the operator to use for connecting the given operands |
||
| 1260 | * @param array $operands the SQL expressions to connect. |
||
| 1261 | * @param array $params the binding parameters to be populated |
||
| 1262 | * @return string the generated SQL expression |
||
| 1263 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1264 | */ |
||
| 1265 | 6 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1281 | |||
| 1282 | /** |
||
| 1283 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1284 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1285 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1286 | * describe the interval that column value should be in. |
||
| 1287 | * @param array $params the binding parameters to be populated |
||
| 1288 | * @return string the generated SQL expression |
||
| 1289 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1290 | */ |
||
| 1291 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1323 | |||
| 1324 | /** |
||
| 1325 | * Creates an SQL expressions with the `IN` operator. |
||
| 1326 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1327 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1328 | * a composite IN condition will be generated. |
||
| 1329 | * The second operand is an array of values that column value should be among. |
||
| 1330 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1331 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1332 | * @param array $params the binding parameters to be populated |
||
| 1333 | * @return string the generated SQL expression |
||
| 1334 | * @throws Exception if wrong number of operands have been given. |
||
| 1335 | */ |
||
| 1336 | 231 | public function buildInCondition($operator, $operands, &$params) |
|
| 1397 | |||
| 1398 | /** |
||
| 1399 | * Builds SQL for IN condition. |
||
| 1400 | * |
||
| 1401 | * @param string $operator |
||
| 1402 | * @param array $columns |
||
| 1403 | * @param Query $values |
||
| 1404 | * @param array $params |
||
| 1405 | * @return string SQL |
||
| 1406 | */ |
||
| 1407 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1426 | |||
| 1427 | /** |
||
| 1428 | * Builds SQL for IN condition. |
||
| 1429 | * |
||
| 1430 | * @param string $operator |
||
| 1431 | * @param array|\Traversable $columns |
||
| 1432 | * @param array $values |
||
| 1433 | * @param array $params |
||
| 1434 | * @return string SQL |
||
| 1435 | */ |
||
| 1436 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1464 | |||
| 1465 | /** |
||
| 1466 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1467 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1468 | * @param array $operands an array of two or three operands |
||
| 1469 | * |
||
| 1470 | * - The first operand is the column name. |
||
| 1471 | * - The second operand is a single value or an array of values that column value |
||
| 1472 | * should be compared with. If it is an empty array the generated expression will |
||
| 1473 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1474 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1475 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1476 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1477 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1478 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1479 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1480 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1481 | * @param array $params the binding parameters to be populated |
||
| 1482 | * @return string the generated SQL expression |
||
| 1483 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1484 | */ |
||
| 1485 | 75 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1535 | |||
| 1536 | /** |
||
| 1537 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1538 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1539 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1540 | * @param array $params the binding parameters to be populated |
||
| 1541 | * @return string the generated SQL expression |
||
| 1542 | * @throws InvalidArgumentException if the operand is not a [[Query]] object. |
||
| 1543 | */ |
||
| 1544 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1553 | |||
| 1554 | /** |
||
| 1555 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1556 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1557 | * @param array $operands contains two column names. |
||
| 1558 | * @param array $params the binding parameters to be populated |
||
| 1559 | * @return string the generated SQL expression |
||
| 1560 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1561 | */ |
||
| 1562 | 36 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1591 | |||
| 1592 | /** |
||
| 1593 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1594 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1595 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1596 | * @since 2.0.8 |
||
| 1597 | */ |
||
| 1598 | 60 | public function selectExists($rawSql) |
|
| 1602 | } |
||
| 1603 |
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.