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\Object |
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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 | |||
| 69 | |||
| 70 | /** |
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| 71 | * Constructor. |
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| 72 | * @param Connection $connection the database connection. |
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| 73 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 74 | */ |
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| 75 | 755 | public function __construct($connection, $config = []) |
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| 80 | |||
| 81 | /** |
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| 82 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 83 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 84 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 85 | * be included in the result with the additional parameters generated during the query building process. |
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| 86 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 87 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 88 | * include those provided in `$params`. |
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| 89 | */ |
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| 90 | 518 | public function build($query, $params = []) |
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| 115 | |||
| 116 | /** |
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| 117 | * Creates an INSERT SQL statement. |
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| 118 | * For example, |
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| 119 | * |
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| 120 | * ```php |
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| 121 | * $sql = $queryBuilder->insert('user', [ |
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| 122 | * 'name' => 'Sam', |
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| 123 | * 'age' => 30, |
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| 124 | * ], $params); |
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| 125 | * ``` |
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| 126 | * |
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| 127 | * The method will properly escape the table and column names. |
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| 128 | * |
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| 129 | * @param string $table the table that new rows will be inserted into. |
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| 130 | * @param array $columns the column data (name => value) to be inserted into the table. |
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| 131 | * @param array $params the binding parameters that will be generated by this method. |
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| 132 | * They should be bound to the DB command later. |
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| 133 | * @return string the INSERT SQL |
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| 134 | */ |
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| 135 | 95 | public function insert($table, $columns, &$params) |
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| 163 | |||
| 164 | /** |
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| 165 | * Generates a batch INSERT SQL statement. |
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| 166 | * For example, |
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| 167 | * |
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| 168 | * ```php |
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| 169 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 170 | * ['Tom', 30], |
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| 171 | * ['Jane', 20], |
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| 172 | * ['Linda', 25], |
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| 173 | * ]); |
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| 174 | * ``` |
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| 175 | * |
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| 176 | * Note that the values in each row must match the corresponding column names. |
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| 177 | * |
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| 178 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 179 | * |
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| 180 | * @param string $table the table that new rows will be inserted into. |
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| 181 | * @param array $columns the column names |
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| 182 | * @param array $rows the rows to be batch inserted into the table |
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| 183 | * @return string the batch INSERT SQL statement |
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| 184 | */ |
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| 185 | 2 | public function batchInsert($table, $columns, $rows) |
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| 224 | |||
| 225 | /** |
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| 226 | * Creates an UPDATE SQL statement. |
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| 227 | * For example, |
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| 228 | * |
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| 229 | * ```php |
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| 230 | * $params = []; |
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| 231 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 232 | * ``` |
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| 233 | * |
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| 234 | * The method will properly escape the table and column names. |
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| 235 | * |
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| 236 | * @param string $table the table to be updated. |
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| 237 | * @param array $columns the column data (name => value) to be updated. |
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| 238 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 239 | * refer to [[Query::where()]] on how to specify condition. |
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| 240 | * @param array $params the binding parameters that will be modified by this method |
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| 241 | * so that they can be bound to the DB command later. |
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| 242 | * @return string the UPDATE SQL |
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| 243 | */ |
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| 244 | 67 | public function update($table, $columns, $condition, &$params) |
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| 271 | |||
| 272 | /** |
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| 273 | * Creates a DELETE SQL statement. |
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| 274 | * For example, |
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| 275 | * |
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| 276 | * ```php |
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| 277 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 278 | * ``` |
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| 279 | * |
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| 280 | * The method will properly escape the table and column names. |
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| 281 | * |
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| 282 | * @param string $table the table where the data will be deleted from. |
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| 283 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 284 | * refer to [[Query::where()]] on how to specify condition. |
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| 285 | * @param array $params the binding parameters that will be modified by this method |
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| 286 | * so that they can be bound to the DB command later. |
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| 287 | * @return string the DELETE SQL |
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| 288 | */ |
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| 289 | 132 | public function delete($table, $condition, &$params) |
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| 296 | |||
| 297 | /** |
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| 298 | * Builds a SQL statement for creating a new DB table. |
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| 299 | * |
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| 300 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 301 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 302 | * stands for the column type which can contain an abstract DB type. |
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| 303 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 304 | * |
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| 305 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 306 | * inserted into the generated SQL. |
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| 307 | * |
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| 308 | * For example, |
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| 309 | * |
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| 310 | * ```php |
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| 311 | * $sql = $queryBuilder->createTable('user', [ |
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| 312 | * 'id' => 'pk', |
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| 313 | * 'name' => 'string', |
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| 314 | * 'age' => 'integer', |
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| 315 | * ]); |
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| 316 | * ``` |
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| 317 | * |
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| 318 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 319 | * @param array $columns the columns (name => definition) in the new table. |
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| 320 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 321 | * @return string the SQL statement for creating a new DB table. |
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| 322 | */ |
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| 323 | 55 | public function createTable($table, $columns, $options = null) |
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| 337 | |||
| 338 | /** |
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| 339 | * Builds a SQL statement for renaming a DB table. |
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| 340 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 341 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 342 | * @return string the SQL statement for renaming a DB table. |
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| 343 | */ |
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| 344 | 1 | public function renameTable($oldName, $newName) |
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| 348 | |||
| 349 | /** |
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| 350 | * Builds a SQL statement for dropping a DB table. |
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| 351 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 352 | * @return string the SQL statement for dropping a DB table. |
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| 353 | */ |
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| 354 | 11 | public function dropTable($table) |
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| 358 | |||
| 359 | /** |
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| 360 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 361 | * @param string $name the name of the primary key constraint. |
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| 362 | * @param string $table the table that the primary key constraint will be added to. |
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| 363 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 364 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 365 | */ |
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| 366 | 2 | public function addPrimaryKey($name, $table, $columns) |
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| 380 | |||
| 381 | /** |
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| 382 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 383 | * @param string $name the name of the primary key constraint to be removed. |
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| 384 | * @param string $table the table that the primary key constraint will be removed from. |
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| 385 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 386 | */ |
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| 387 | 1 | public function dropPrimaryKey($name, $table) |
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| 392 | |||
| 393 | /** |
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| 394 | * Builds a SQL statement for truncating a DB table. |
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| 395 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 396 | * @return string the SQL statement for truncating a DB table. |
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| 397 | */ |
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| 398 | 5 | public function truncateTable($table) |
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| 402 | |||
| 403 | /** |
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| 404 | * Builds a SQL statement for adding a new DB column. |
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| 405 | * @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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| 406 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 407 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 408 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 409 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 410 | * @return string the SQL statement for adding a new column. |
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| 411 | */ |
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| 412 | 4 | public function addColumn($table, $column, $type) |
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| 418 | |||
| 419 | /** |
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| 420 | * Builds a SQL statement for dropping a DB column. |
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| 421 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 422 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 423 | * @return string the SQL statement for dropping a DB column. |
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| 424 | */ |
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| 425 | public function dropColumn($table, $column) |
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| 430 | |||
| 431 | /** |
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| 432 | * Builds a SQL statement for renaming a column. |
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| 433 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 434 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 435 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 436 | * @return string the SQL statement for renaming a DB column. |
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| 437 | */ |
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| 438 | public function renameColumn($table, $oldName, $newName) |
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| 444 | |||
| 445 | /** |
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| 446 | * Builds a SQL statement for changing the definition of a column. |
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| 447 | * @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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| 448 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 449 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 450 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 451 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 452 | * will become 'varchar(255) not null'. |
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| 453 | * @return string the SQL statement for changing the definition of a column. |
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| 454 | */ |
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| 455 | 1 | public function alterColumn($table, $column, $type) |
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| 462 | |||
| 463 | /** |
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| 464 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 465 | * The method will properly quote the table and column names. |
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| 466 | * @param string $name the name of the foreign key constraint. |
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| 467 | * @param string $table the table that the foreign key constraint will be added to. |
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| 468 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 469 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 470 | * @param string $refTable the table that the foreign key references to. |
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| 471 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 472 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 473 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 474 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 475 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 476 | */ |
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| 477 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 493 | |||
| 494 | /** |
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| 495 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 496 | * @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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| 497 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 498 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 499 | */ |
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| 500 | public function dropForeignKey($name, $table) |
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| 505 | |||
| 506 | /** |
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| 507 | * Builds a SQL statement for creating a new index. |
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| 508 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 509 | * @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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| 510 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 511 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 512 | * by the method, unless a parenthesis is found in the name. |
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| 513 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
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| 514 | * @return string the SQL statement for creating a new index. |
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| 515 | */ |
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| 516 | 1 | public function createIndex($name, $table, $columns, $unique = false) |
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| 523 | |||
| 524 | /** |
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| 525 | * Builds a SQL statement for dropping an index. |
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| 526 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 527 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 528 | * @return string the SQL statement for dropping an index. |
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| 529 | */ |
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| 530 | public function dropIndex($name, $table) |
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| 534 | |||
| 535 | /** |
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| 536 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 537 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 538 | * will have the specified value or 1. |
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| 539 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 540 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 541 | * the next new row's primary key will have a value 1. |
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| 542 | * @return string the SQL statement for resetting sequence |
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| 543 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 544 | */ |
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| 545 | public function resetSequence($table, $value = null) |
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| 549 | |||
| 550 | /** |
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| 551 | * Builds a SQL statement for enabling or disabling integrity check. |
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| 552 | * @param bool $check whether to turn on or off the integrity check. |
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| 553 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
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| 554 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
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| 555 | * @return string the SQL statement for checking integrity |
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| 556 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 557 | */ |
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| 558 | public function checkIntegrity($check = true, $schema = '', $table = '') |
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| 562 | |||
| 563 | /** |
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| 564 | * Builds a SQL command for adding comment to column |
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| 565 | * |
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| 566 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 567 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 568 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 569 | * @return string the SQL statement for adding comment on column |
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| 570 | * @since 2.0.8 |
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| 571 | */ |
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| 572 | 1 | public function addCommentOnColumn($table, $column, $comment) |
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| 577 | |||
| 578 | /** |
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| 579 | * Builds a SQL command for adding comment to table |
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| 580 | * |
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| 581 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 582 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 583 | * @return string the SQL statement for adding comment on table |
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| 584 | * @since 2.0.8 |
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| 585 | */ |
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| 586 | 1 | public function addCommentOnTable($table, $comment) |
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| 590 | |||
| 591 | /** |
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| 592 | * Builds a SQL command for adding comment to column |
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| 593 | * |
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| 594 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 595 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 596 | * @return string the SQL statement for adding comment on column |
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| 597 | * @since 2.0.8 |
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| 598 | */ |
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| 599 | 1 | public function dropCommentFromColumn($table, $column) |
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| 603 | |||
| 604 | /** |
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| 605 | * Builds a SQL command for adding comment to table |
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| 606 | * |
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| 607 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 608 | * @return string the SQL statement for adding comment on column |
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| 609 | * @since 2.0.8 |
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| 610 | */ |
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| 611 | 1 | public function dropCommentFromTable($table) |
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| 615 | |||
| 616 | /** |
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| 617 | * Converts an abstract column type into a physical column type. |
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| 618 | * The conversion is done using the type map specified in [[typeMap]]. |
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| 619 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
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| 620 | * physical types): |
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| 621 | * |
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| 622 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 623 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 624 | * - `unsignedpk`: an unsigned auto-incremental primary key type, will be converted into "int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 625 | * - `char`: char type, will be converted into "char(1)" |
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| 626 | * - `string`: string type, will be converted into "varchar(255)" |
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| 627 | * - `text`: a long string type, will be converted into "text" |
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| 628 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
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| 629 | * - `integer`: integer type, will be converted into "int(11)" |
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| 630 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
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| 631 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
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| 632 | * - `float``: float number type, will be converted into "float" |
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| 633 | * - `decimal`: decimal number type, will be converted into "decimal" |
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| 634 | * - `datetime`: datetime type, will be converted into "datetime" |
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| 635 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
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| 636 | * - `time`: time type, will be converted into "time" |
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| 637 | * - `date`: date type, will be converted into "date" |
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| 638 | * - `money`: money type, will be converted into "decimal(19,4)" |
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| 639 | * - `binary`: binary data type, will be converted into "blob" |
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| 640 | * |
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| 641 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
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| 642 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
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| 643 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
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| 644 | * |
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| 645 | * For some of the abstract types you can also specify a length or precision constraint |
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| 646 | * by appending it in round brackets directly to the type. |
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| 647 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
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| 648 | * If the underlying DBMS does not support these kind of constraints for a type it will |
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| 649 | * be ignored. |
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| 650 | * |
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| 651 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
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| 652 | * @param string|ColumnSchemaBuilder $type abstract column type |
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| 653 | * @return string physical column type. |
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| 654 | */ |
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| 655 | 59 | public function getColumnType($type) |
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| 675 | |||
| 676 | /** |
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| 677 | * @param array $columns |
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| 678 | * @param array $params the binding parameters to be populated |
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| 679 | * @param bool $distinct |
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| 680 | * @param string $selectOption |
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| 681 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 682 | */ |
||
| 683 | 740 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 721 | |||
| 722 | /** |
||
| 723 | * @param array $tables |
||
| 724 | * @param array $params the binding parameters to be populated |
||
| 725 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 726 | */ |
||
| 727 | 740 | public function buildFrom($tables, &$params) |
|
| 737 | |||
| 738 | /** |
||
| 739 | * @param array $joins |
||
| 740 | * @param array $params the binding parameters to be populated |
||
| 741 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 742 | * @throws Exception if the $joins parameter is not in proper format |
||
| 743 | */ |
||
| 744 | 740 | public function buildJoin($joins, &$params) |
|
| 769 | |||
| 770 | /** |
||
| 771 | * Quotes table names passed |
||
| 772 | * |
||
| 773 | * @param array $tables |
||
| 774 | * @param array $params |
||
| 775 | * @return array |
||
| 776 | */ |
||
| 777 | 491 | private function quoteTableNames($tables, &$params) |
|
| 798 | |||
| 799 | /** |
||
| 800 | * @param string|array $condition |
||
| 801 | * @param array $params the binding parameters to be populated |
||
| 802 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 803 | */ |
||
| 804 | 758 | public function buildWhere($condition, &$params) |
|
| 810 | |||
| 811 | /** |
||
| 812 | * @param array $columns |
||
| 813 | * @param array $params the binding parameters to be populated |
||
| 814 | * @return string the GROUP BY clause |
||
| 815 | */ |
||
| 816 | 740 | public function buildGroupBy($columns, &$params) |
|
| 831 | |||
| 832 | /** |
||
| 833 | * @param string|array $condition |
||
| 834 | * @param array $params the binding parameters to be populated |
||
| 835 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 836 | */ |
||
| 837 | 740 | public function buildHaving($condition, &$params) |
|
| 843 | |||
| 844 | /** |
||
| 845 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 846 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 847 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 848 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 849 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 850 | * @param array $params the binding parameters to be populated |
||
| 851 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 852 | */ |
||
| 853 | 740 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset, &$params) |
|
| 865 | |||
| 866 | /** |
||
| 867 | * @param array $columns |
||
| 868 | * @param array $params the binding parameters to be populated |
||
| 869 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 870 | */ |
||
| 871 | 740 | public function buildOrderBy($columns, &$params) |
|
| 888 | |||
| 889 | /** |
||
| 890 | * @param int $limit |
||
| 891 | * @param int $offset |
||
| 892 | * @return string the LIMIT and OFFSET clauses |
||
| 893 | */ |
||
| 894 | 220 | public function buildLimit($limit, $offset) |
|
| 906 | |||
| 907 | /** |
||
| 908 | * Checks to see if the given limit is effective. |
||
| 909 | * @param mixed $limit the given limit |
||
| 910 | * @return bool whether the limit is effective |
||
| 911 | */ |
||
| 912 | 740 | protected function hasLimit($limit) |
|
| 916 | |||
| 917 | /** |
||
| 918 | * Checks to see if the given offset is effective. |
||
| 919 | * @param mixed $offset the given offset |
||
| 920 | * @return bool whether the offset is effective |
||
| 921 | */ |
||
| 922 | 740 | protected function hasOffset($offset) |
|
| 927 | |||
| 928 | /** |
||
| 929 | * @param array $unions |
||
| 930 | * @param array $params the binding parameters to be populated |
||
| 931 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 932 | */ |
||
| 933 | 518 | public function buildUnion($unions, &$params) |
|
| 952 | |||
| 953 | /** |
||
| 954 | * Processes columns and properly quotes them if necessary. |
||
| 955 | * It will join all columns into a string with comma as separators. |
||
| 956 | * @param string|array $columns the columns to be processed |
||
| 957 | * @return string the processing result |
||
| 958 | */ |
||
| 959 | 3 | public function buildColumns($columns) |
|
| 978 | |||
| 979 | /** |
||
| 980 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 981 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 982 | * on how to specify a condition. |
||
| 983 | * @param array $params the binding parameters to be populated |
||
| 984 | * @return string the generated SQL expression |
||
| 985 | */ |
||
| 986 | 758 | public function buildCondition($condition, &$params) |
|
| 1012 | |||
| 1013 | /** |
||
| 1014 | * Creates a condition based on column-value pairs. |
||
| 1015 | * @param array $condition the condition specification. |
||
| 1016 | * @param array $params the binding parameters to be populated |
||
| 1017 | * @return string the generated SQL expression |
||
| 1018 | */ |
||
| 1019 | 379 | public function buildHashCondition($condition, &$params) |
|
| 1046 | |||
| 1047 | /** |
||
| 1048 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1049 | * @param string $operator the operator to use for connecting the given operands |
||
| 1050 | * @param array $operands the SQL expressions to connect. |
||
| 1051 | * @param array $params the binding parameters to be populated |
||
| 1052 | * @return string the generated SQL expression |
||
| 1053 | */ |
||
| 1054 | 98 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1077 | |||
| 1078 | /** |
||
| 1079 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1080 | * @param string $operator the operator to use for connecting the given operands |
||
| 1081 | * @param array $operands the SQL expressions to connect. |
||
| 1082 | * @param array $params the binding parameters to be populated |
||
| 1083 | * @return string the generated SQL expression |
||
| 1084 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1085 | */ |
||
| 1086 | 3 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1102 | |||
| 1103 | /** |
||
| 1104 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1105 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1106 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1107 | * describe the interval that column value should be in. |
||
| 1108 | * @param array $params the binding parameters to be populated |
||
| 1109 | * @return string the generated SQL expression |
||
| 1110 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1111 | */ |
||
| 1112 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1144 | |||
| 1145 | /** |
||
| 1146 | * Creates an SQL expressions with the `IN` operator. |
||
| 1147 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1148 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1149 | * a composite IN condition will be generated. |
||
| 1150 | * The second operand is an array of values that column value should be among. |
||
| 1151 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1152 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1153 | * @param array $params the binding parameters to be populated |
||
| 1154 | * @return string the generated SQL expression |
||
| 1155 | * @throws Exception if wrong number of operands have been given. |
||
| 1156 | */ |
||
| 1157 | 200 | public function buildInCondition($operator, $operands, &$params) |
|
| 1218 | |||
| 1219 | /** |
||
| 1220 | * Builds SQL for IN condition |
||
| 1221 | * |
||
| 1222 | * @param string $operator |
||
| 1223 | * @param array $columns |
||
| 1224 | * @param Query $values |
||
| 1225 | * @param array $params |
||
| 1226 | * @return string SQL |
||
| 1227 | */ |
||
| 1228 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1245 | |||
| 1246 | /** |
||
| 1247 | * Builds SQL for IN condition |
||
| 1248 | * |
||
| 1249 | * @param string $operator |
||
| 1250 | * @param array|\Traversable $columns |
||
| 1251 | * @param array $values |
||
| 1252 | * @param array $params |
||
| 1253 | * @return string SQL |
||
| 1254 | */ |
||
| 1255 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1283 | |||
| 1284 | /** |
||
| 1285 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1286 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1287 | * @param array $operands an array of two or three operands |
||
| 1288 | * |
||
| 1289 | * - The first operand is the column name. |
||
| 1290 | * - The second operand is a single value or an array of values that column value |
||
| 1291 | * should be compared with. If it is an empty array the generated expression will |
||
| 1292 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1293 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1294 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1295 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1296 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1297 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1298 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1299 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1300 | * @param array $params the binding parameters to be populated |
||
| 1301 | * @return string the generated SQL expression |
||
| 1302 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1303 | */ |
||
| 1304 | 72 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1350 | |||
| 1351 | /** |
||
| 1352 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1353 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1354 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1355 | * @param array $params the binding parameters to be populated |
||
| 1356 | * @return string the generated SQL expression |
||
| 1357 | * @throws InvalidParamException if the operand is not a [[Query]] object. |
||
| 1358 | */ |
||
| 1359 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1368 | |||
| 1369 | /** |
||
| 1370 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1371 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1372 | * @param array $operands contains two column names. |
||
| 1373 | * @param array $params the binding parameters to be populated |
||
| 1374 | * @return string the generated SQL expression |
||
| 1375 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1376 | */ |
||
| 1377 | 30 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1405 | |||
| 1406 | /** |
||
| 1407 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1408 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1409 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1410 | * @since 2.0.8 |
||
| 1411 | */ |
||
| 1412 | 45 | public function selectExists($rawSql) |
|
| 1416 | } |
||
| 1417 |
