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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| 23 | class QueryBuilder extends \yii\base\Object |
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| 24 | { |
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| 25 | /** |
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| 26 | * The prefix for automatically generated query binding parameters. |
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| 27 | */ |
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| 28 | const PARAM_PREFIX = ':qp'; |
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| 29 | |||
| 30 | /** |
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| 31 | * @var Connection the database connection. |
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| 32 | */ |
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| 33 | public $db; |
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| 34 | /** |
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| 35 | * @var string the separator between different fragments of a SQL statement. |
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| 36 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 37 | */ |
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| 38 | public $separator = ' '; |
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| 39 | /** |
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| 40 | * @var array the abstract column types mapped to physical column types. |
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| 41 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 42 | * Child classes should override this property to declare supported type mappings. |
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| 43 | */ |
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| 44 | public $typeMap = []; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var array map of query condition to builder methods. |
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| 48 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 49 | */ |
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| 50 | protected $conditionBuilders = [ |
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| 51 | 'NOT' => 'buildNotCondition', |
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| 52 | 'AND' => 'buildAndCondition', |
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| 53 | 'OR' => 'buildAndCondition', |
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| 54 | 'BETWEEN' => 'buildBetweenCondition', |
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| 55 | 'NOT BETWEEN' => 'buildBetweenCondition', |
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| 56 | 'IN' => 'buildInCondition', |
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| 57 | 'NOT IN' => 'buildInCondition', |
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| 58 | 'LIKE' => 'buildLikeCondition', |
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| 59 | 'NOT LIKE' => 'buildLikeCondition', |
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| 60 | 'OR LIKE' => 'buildLikeCondition', |
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| 61 | 'OR NOT LIKE' => 'buildLikeCondition', |
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| 62 | 'EXISTS' => 'buildExistsCondition', |
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| 63 | 'NOT EXISTS' => 'buildExistsCondition', |
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| 64 | ]; |
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| 65 | |||
| 66 | |||
| 67 | /** |
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| 68 | * Constructor. |
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| 69 | * @param Connection $connection the database connection. |
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| 70 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 71 | */ |
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| 72 | 639 | public function __construct($connection, $config = []) |
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| 77 | |||
| 78 | /** |
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| 79 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 80 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 81 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 82 | * be included in the result with the additional parameters generated during the query building process. |
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| 83 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 84 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 85 | * include those provided in `$params`. |
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| 86 | */ |
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| 87 | 434 | public function build($query, $params = []) |
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| 136 | |||
| 137 | /** |
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| 138 | * Creates an INSERT SQL statement. |
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| 139 | * For example, |
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| 140 | * |
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| 141 | * ```php |
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| 142 | * $sql = $queryBuilder->insert('user', [ |
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| 143 | * 'name' => 'Sam', |
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| 144 | * 'age' => 30, |
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| 145 | * ], $params); |
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| 146 | * ``` |
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| 147 | * |
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| 148 | * The method will properly escape the table and column names. |
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| 149 | * |
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| 150 | * @param string $table the table that new rows will be inserted into. |
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| 151 | * @param array $columns the column data (name => value) to be inserted into the table. |
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| 152 | * @param array $params the binding parameters that will be generated by this method. |
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| 153 | * They should be bound to the DB command later. |
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| 154 | * @return string the INSERT SQL |
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| 155 | */ |
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| 156 | 68 | public function insert($table, $columns, &$params) |
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| 184 | |||
| 185 | /** |
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| 186 | * Generates a batch INSERT SQL statement. |
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| 187 | * For example, |
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| 188 | * |
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| 189 | * ```php |
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| 190 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 191 | * ['Tom', 30], |
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| 192 | * ['Jane', 20], |
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| 193 | * ['Linda', 25], |
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| 194 | * ]); |
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| 195 | * ``` |
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| 196 | * |
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| 197 | * Note that the values in each row must match the corresponding column names. |
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| 198 | * |
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| 199 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 200 | * |
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| 201 | * @param string $table the table that new rows will be inserted into. |
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| 202 | * @param array $columns the column names |
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| 203 | * @param array $rows the rows to be batch inserted into the table |
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| 204 | * @return string the batch INSERT SQL statement |
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| 205 | */ |
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| 206 | 2 | public function batchInsert($table, $columns, $rows) |
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| 241 | |||
| 242 | /** |
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| 243 | * Creates an UPDATE SQL statement. |
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| 244 | * For example, |
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| 245 | * |
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| 246 | * ```php |
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| 247 | * $params = []; |
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| 248 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 249 | * ``` |
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| 250 | * |
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| 251 | * The method will properly escape the table and column names. |
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| 252 | * |
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| 253 | * @param string $table the table to be updated. |
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| 254 | * @param array $columns the column data (name => value) to be updated. |
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| 255 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 256 | * refer to [[Query::where()]] on how to specify condition. |
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| 257 | * @param array $params the binding parameters that will be modified by this method |
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| 258 | * so that they can be bound to the DB command later. |
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| 259 | * @return string the UPDATE SQL |
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| 260 | */ |
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| 261 | 61 | public function update($table, $columns, $condition, &$params) |
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| 288 | |||
| 289 | /** |
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| 290 | * Creates a DELETE SQL statement. |
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| 291 | * For example, |
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| 292 | * |
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| 293 | * ```php |
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| 294 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 295 | * ``` |
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| 296 | * |
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| 297 | * The method will properly escape the table and column names. |
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| 298 | * |
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| 299 | * @param string $table the table where the data will be deleted from. |
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| 300 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 301 | * refer to [[Query::where()]] on how to specify condition. |
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| 302 | * @param array $params the binding parameters that will be modified by this method |
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| 303 | * so that they can be bound to the DB command later. |
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| 304 | * @return string the DELETE SQL |
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| 305 | */ |
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| 306 | 95 | public function delete($table, $condition, &$params) |
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| 313 | |||
| 314 | /** |
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| 315 | * Builds a SQL statement for creating a new DB table. |
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| 316 | * |
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| 317 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 318 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 319 | * stands for the column type which can contain an abstract DB type. |
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| 320 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 321 | * |
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| 322 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 323 | * inserted into the generated SQL. |
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| 324 | * |
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| 325 | * For example, |
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| 326 | * |
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| 327 | * ```php |
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| 328 | * $sql = $queryBuilder->createTable('user', [ |
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| 329 | * 'id' => 'pk', |
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| 330 | * 'name' => 'string', |
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| 331 | * 'age' => 'integer', |
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| 332 | * ]); |
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| 333 | * ``` |
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| 334 | * |
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| 335 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 336 | * @param array $columns the columns (name => definition) in the new table. |
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| 337 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 338 | * @return string the SQL statement for creating a new DB table. |
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| 339 | */ |
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| 340 | 36 | public function createTable($table, $columns, $options = null) |
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| 354 | |||
| 355 | /** |
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| 356 | * Builds a SQL statement for renaming a DB table. |
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| 357 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 358 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 359 | * @return string the SQL statement for renaming a DB table. |
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| 360 | */ |
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| 361 | 1 | public function renameTable($oldName, $newName) |
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| 365 | |||
| 366 | /** |
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| 367 | * Builds a SQL statement for dropping a DB table. |
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| 368 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 369 | * @return string the SQL statement for dropping a DB table. |
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| 370 | */ |
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| 371 | 7 | public function dropTable($table) |
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| 375 | |||
| 376 | /** |
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| 377 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 378 | * @param string $name the name of the primary key constraint. |
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| 379 | * @param string $table the table that the primary key constraint will be added to. |
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| 380 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 381 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 382 | */ |
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| 383 | 2 | public function addPrimaryKey($name, $table, $columns) |
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| 397 | |||
| 398 | /** |
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| 399 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 400 | * @param string $name the name of the primary key constraint to be removed. |
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| 401 | * @param string $table the table that the primary key constraint will be removed from. |
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| 402 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 403 | */ |
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| 404 | 1 | public function dropPrimaryKey($name, $table) |
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| 409 | |||
| 410 | /** |
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| 411 | * Builds a SQL statement for truncating a DB table. |
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| 412 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 413 | * @return string the SQL statement for truncating a DB table. |
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| 414 | */ |
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| 415 | 5 | public function truncateTable($table) |
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| 419 | |||
| 420 | /** |
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| 421 | * Builds a SQL statement for adding a new DB column. |
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| 422 | * @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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| 423 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 424 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 425 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 426 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 427 | * @return string the SQL statement for adding a new column. |
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| 428 | */ |
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| 429 | 4 | public function addColumn($table, $column, $type) |
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| 435 | |||
| 436 | /** |
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| 437 | * Builds a SQL statement for dropping a DB column. |
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| 438 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 439 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 440 | * @return string the SQL statement for dropping a DB column. |
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| 441 | */ |
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| 442 | public function dropColumn($table, $column) |
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| 447 | |||
| 448 | /** |
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| 449 | * Builds a SQL statement for renaming a column. |
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| 450 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 451 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 452 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 453 | * @return string the SQL statement for renaming a DB column. |
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| 454 | */ |
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| 455 | public function renameColumn($table, $oldName, $newName) |
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| 461 | |||
| 462 | /** |
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| 463 | * Builds a SQL statement for changing the definition of a column. |
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| 464 | * @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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| 465 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 466 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 467 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 468 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 469 | * will become 'varchar(255) not null'. |
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| 470 | * @return string the SQL statement for changing the definition of a column. |
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| 471 | */ |
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| 472 | 1 | public function alterColumn($table, $column, $type) |
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| 479 | |||
| 480 | /** |
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| 481 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 482 | * The method will properly quote the table and column names. |
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| 483 | * @param string $name the name of the foreign key constraint. |
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| 484 | * @param string $table the table that the foreign key constraint will be added to. |
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| 485 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 486 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 487 | * @param string $refTable the table that the foreign key references to. |
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| 488 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 489 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 490 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 491 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 492 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 493 | */ |
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| 494 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 510 | |||
| 511 | /** |
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| 512 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 513 | * @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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| 514 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 515 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 516 | */ |
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| 517 | public function dropForeignKey($name, $table) |
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| 522 | |||
| 523 | /** |
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| 524 | * Builds a SQL statement for creating a new index. |
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| 525 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 526 | * @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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| 527 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 528 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 529 | * by the method, unless a parenthesis is found in the name. |
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| 530 | * @param boolean $unique whether to add UNIQUE constraint on the created index. |
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| 531 | * @return string the SQL statement for creating a new index. |
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| 532 | */ |
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| 533 | public function createIndex($name, $table, $columns, $unique = false) |
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| 540 | |||
| 541 | /** |
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| 542 | * Builds a SQL statement for dropping an index. |
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| 543 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 544 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 545 | * @return string the SQL statement for dropping an index. |
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| 546 | */ |
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| 547 | public function dropIndex($name, $table) |
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| 551 | |||
| 552 | /** |
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| 553 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 554 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 555 | * will have the specified value or 1. |
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| 556 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 557 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 558 | * the next new row's primary key will have a value 1. |
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| 559 | * @return string the SQL statement for resetting sequence |
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| 560 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 561 | */ |
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| 562 | public function resetSequence($table, $value = null) |
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| 566 | |||
| 567 | /** |
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| 568 | * Builds a SQL statement for enabling or disabling integrity check. |
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| 569 | * @param boolean $check whether to turn on or off the integrity check. |
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| 570 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
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| 571 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
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| 572 | * @return string the SQL statement for checking integrity |
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| 573 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 574 | */ |
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| 575 | public function checkIntegrity($check = true, $schema = '', $table = '') |
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| 579 | |||
| 580 | /** |
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| 581 | * Converts an abstract column type into a physical column type. |
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| 582 | * The conversion is done using the type map specified in [[typeMap]]. |
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| 583 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
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| 584 | * physical types): |
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| 585 | * |
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| 586 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 587 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 588 | * - `string`: string type, will be converted into "varchar(255)" |
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| 589 | * - `text`: a long string type, will be converted into "text" |
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| 590 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
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| 591 | * - `integer`: integer type, will be converted into "int(11)" |
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| 592 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
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| 593 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
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| 594 | * - `float``: float number type, will be converted into "float" |
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| 595 | * - `decimal`: decimal number type, will be converted into "decimal" |
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| 596 | * - `datetime`: datetime type, will be converted into "datetime" |
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| 597 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
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| 598 | * - `time`: time type, will be converted into "time" |
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| 599 | * - `date`: date type, will be converted into "date" |
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| 600 | * - `money`: money type, will be converted into "decimal(19,4)" |
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| 601 | * - `binary`: binary data type, will be converted into "blob" |
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| 602 | * |
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| 603 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
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| 604 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
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| 605 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
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| 606 | * |
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| 607 | * For some of the abstract types you can also specify a length or precision constraint |
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| 608 | * by appending it in round brackets directly to the type. |
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| 609 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
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| 610 | * If the underlying DBMS does not support these kind of constraints for a type it will |
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| 611 | * be ignored. |
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| 612 | * |
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| 613 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
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| 614 | * @param string|ColumnSchemaBuilder $type abstract column type |
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| 615 | * @return string physical column type. |
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| 616 | */ |
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| 617 | 40 | public function getColumnType($type) |
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| 637 | |||
| 638 | /** |
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| 639 | * @param array $columns |
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| 640 | * @param array $params the binding parameters to be populated |
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| 641 | * @param boolean $distinct |
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| 642 | * @param string $selectOption |
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| 643 | * @return string the SELECT clause built from [[Query::$select]]. |
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| 644 | */ |
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| 645 | 619 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
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| 683 | |||
| 684 | /** |
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| 685 | * @param array $tables |
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| 686 | * @param array $params the binding parameters to be populated |
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| 687 | * @return string the FROM clause built from [[Query::$from]]. |
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| 688 | */ |
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| 689 | 619 | public function buildFrom($tables, &$params) |
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| 699 | |||
| 700 | /** |
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| 701 | * @param array $joins |
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| 702 | * @param array $params the binding parameters to be populated |
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| 703 | * @return string the JOIN clause built from [[Query::$join]]. |
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| 704 | * @throws Exception if the $joins parameter is not in proper format |
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| 705 | */ |
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| 706 | 619 | public function buildJoin($joins, &$params) |
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| 731 | |||
| 732 | /** |
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| 733 | * Quotes table names passed |
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| 734 | * |
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| 735 | * @param array $tables |
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| 736 | * @param array $params |
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| 737 | * @return array |
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| 738 | */ |
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| 739 | 397 | private function quoteTableNames($tables, &$params) |
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| 760 | |||
| 761 | /** |
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| 762 | * @param string|array $condition |
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| 763 | * @param array $params the binding parameters to be populated |
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| 764 | * @return string the WHERE clause built from [[Query::$where]]. |
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| 765 | */ |
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| 766 | 634 | public function buildWhere($condition, &$params) |
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| 772 | |||
| 773 | /** |
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| 774 | * @param array $columns |
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| 775 | * @return string the GROUP BY clause |
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| 776 | */ |
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| 777 | 619 | public function buildGroupBy($columns) |
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| 791 | |||
| 792 | /** |
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| 793 | * @param string|array $condition |
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| 794 | * @param array $params the binding parameters to be populated |
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| 795 | * @return string the HAVING clause built from [[Query::$having]]. |
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| 796 | */ |
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| 797 | 619 | public function buildHaving($condition, &$params) |
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| 803 | |||
| 804 | /** |
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| 805 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
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| 806 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
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| 807 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
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| 808 | * @param integer $limit the limit number. See [[Query::limit]] for more details. |
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| 809 | * @param integer $offset the offset number. See [[Query::offset]] for more details. |
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| 810 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 811 | */ |
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| 812 | 619 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset) |
|
| 824 | |||
| 825 | /** |
||
| 826 | * @param array $columns |
||
| 827 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 828 | */ |
||
| 829 | 619 | public function buildOrderBy($columns) |
|
| 845 | |||
| 846 | /** |
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| 847 | * @param integer $limit |
||
| 848 | * @param integer $offset |
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| 849 | * @return string the LIMIT and OFFSET clauses |
||
| 850 | */ |
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| 851 | 185 | public function buildLimit($limit, $offset) |
|
| 863 | |||
| 864 | /** |
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| 865 | * Checks to see if the given limit is effective. |
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| 866 | * @param mixed $limit the given limit |
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| 867 | * @return boolean whether the limit is effective |
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| 868 | */ |
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| 869 | 619 | protected function hasLimit($limit) |
|
| 873 | |||
| 874 | /** |
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| 875 | * Checks to see if the given offset is effective. |
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| 876 | * @param mixed $offset the given offset |
||
| 877 | * @return boolean whether the offset is effective |
||
| 878 | */ |
||
| 879 | 619 | protected function hasOffset($offset) |
|
| 884 | |||
| 885 | /** |
||
| 886 | * @param array $unions |
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| 887 | * @param array $params the binding parameters to be populated |
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| 888 | * @return string the UNION clause built from [[Query::$union]]. |
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| 889 | */ |
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| 890 | 434 | public function buildUnion($unions, &$params) |
|
| 909 | |||
| 910 | /** |
||
| 911 | * Processes columns and properly quotes them if necessary. |
||
| 912 | * It will join all columns into a string with comma as separators. |
||
| 913 | * @param string|array $columns the columns to be processed |
||
| 914 | * @return string the processing result |
||
| 915 | */ |
||
| 916 | public function buildColumns($columns) |
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| 935 | |||
| 936 | /** |
||
| 937 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 938 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 939 | * on how to specify a condition. |
||
| 940 | * @param array $params the binding parameters to be populated |
||
| 941 | * @return string the generated SQL expression |
||
| 942 | */ |
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| 943 | 634 | public function buildCondition($condition, &$params) |
|
| 969 | |||
| 970 | /** |
||
| 971 | * Creates a condition based on column-value pairs. |
||
| 972 | * @param array $condition the condition specification. |
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| 973 | * @param array $params the binding parameters to be populated |
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| 974 | * @return string the generated SQL expression |
||
| 975 | */ |
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| 976 | 304 | public function buildHashCondition($condition, &$params) |
|
| 1003 | |||
| 1004 | /** |
||
| 1005 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1006 | * @param string $operator the operator to use for connecting the given operands |
||
| 1007 | * @param array $operands the SQL expressions to connect. |
||
| 1008 | * @param array $params the binding parameters to be populated |
||
| 1009 | * @return string the generated SQL expression |
||
| 1010 | */ |
||
| 1011 | 95 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1028 | |||
| 1029 | /** |
||
| 1030 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1031 | * @param string $operator the operator to use for connecting the given operands |
||
| 1032 | * @param array $operands the SQL expressions to connect. |
||
| 1033 | * @param array $params the binding parameters to be populated |
||
| 1034 | * @return string the generated SQL expression |
||
| 1035 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1036 | */ |
||
| 1037 | 3 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1053 | |||
| 1054 | /** |
||
| 1055 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1056 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1057 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1058 | * describe the interval that column value should be in. |
||
| 1059 | * @param array $params the binding parameters to be populated |
||
| 1060 | * @return string the generated SQL expression |
||
| 1061 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1062 | */ |
||
| 1063 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1095 | |||
| 1096 | /** |
||
| 1097 | * Creates an SQL expressions with the `IN` operator. |
||
| 1098 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1099 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1100 | * a composite IN condition will be generated. |
||
| 1101 | * The second operand is an array of values that column value should be among. |
||
| 1102 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1103 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1104 | * @param array $params the binding parameters to be populated |
||
| 1105 | * @return string the generated SQL expression |
||
| 1106 | * @throws Exception if wrong number of operands have been given. |
||
| 1107 | */ |
||
| 1108 | 153 | public function buildInCondition($operator, $operands, &$params) |
|
| 1161 | |||
| 1162 | /** |
||
| 1163 | * Builds SQL for IN condition |
||
| 1164 | * |
||
| 1165 | * @param string $operator |
||
| 1166 | * @param array $columns |
||
| 1167 | * @param Query $values |
||
| 1168 | * @param array $params |
||
| 1169 | * @return string SQL |
||
| 1170 | */ |
||
| 1171 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1188 | |||
| 1189 | /** |
||
| 1190 | * Builds SQL for IN condition |
||
| 1191 | * |
||
| 1192 | * @param string $operator |
||
| 1193 | * @param array $columns |
||
| 1194 | * @param array $values |
||
| 1195 | * @param array $params |
||
| 1196 | * @return string SQL |
||
| 1197 | */ |
||
| 1198 | 6 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1222 | |||
| 1223 | /** |
||
| 1224 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1225 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1226 | * @param array $operands an array of two or three operands |
||
| 1227 | * |
||
| 1228 | * - The first operand is the column name. |
||
| 1229 | * - The second operand is a single value or an array of values that column value |
||
| 1230 | * should be compared with. If it is an empty array the generated expression will |
||
| 1231 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1232 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1233 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1234 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1235 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1236 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1237 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1238 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1239 | * @param array $params the binding parameters to be populated |
||
| 1240 | * @return string the generated SQL expression |
||
| 1241 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1242 | */ |
||
| 1243 | 72 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1289 | |||
| 1290 | /** |
||
| 1291 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1292 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1293 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1294 | * @param array $params the binding parameters to be populated |
||
| 1295 | * @return string the generated SQL expression |
||
| 1296 | * @throws InvalidParamException if the operand is not a [[Query]] object. |
||
| 1297 | */ |
||
| 1298 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1307 | |||
| 1308 | /** |
||
| 1309 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1310 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1311 | * @param array $operands contains two column names. |
||
| 1312 | * @param array $params the binding parameters to be populated |
||
| 1313 | * @return string the generated SQL expression |
||
| 1314 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1315 | */ |
||
| 1316 | 30 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1344 | } |
||
| 1345 |
