yiisoft /
yii2
Complex classes like QueryBuilder often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use QueryBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class QueryBuilder extends \yii\base\BaseObject |
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| 27 | { |
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| 28 | /** |
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| 29 | * The prefix for automatically generated query binding parameters. |
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| 30 | */ |
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| 31 | const PARAM_PREFIX = ':qp'; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var Connection the database connection. |
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| 35 | */ |
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| 36 | public $db; |
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| 37 | /** |
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| 38 | * @var string the separator between different fragments of a SQL statement. |
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| 39 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 40 | */ |
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| 41 | public $separator = ' '; |
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| 42 | /** |
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| 43 | * @var array the abstract column types mapped to physical column types. |
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| 44 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 45 | * Child classes should override this property to declare supported type mappings. |
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| 46 | */ |
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| 47 | public $typeMap = []; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var array map of query condition to builder methods. |
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| 51 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 52 | */ |
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| 53 | protected $conditionBuilders = [ |
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| 54 | 'NOT' => 'buildNotCondition', |
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| 55 | 'AND' => 'buildAndCondition', |
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| 56 | 'OR' => 'buildAndCondition', |
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| 57 | 'BETWEEN' => 'buildBetweenCondition', |
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| 58 | 'NOT BETWEEN' => 'buildBetweenCondition', |
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| 59 | 'IN' => 'buildInCondition', |
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| 60 | 'NOT IN' => 'buildInCondition', |
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| 61 | 'LIKE' => 'buildLikeCondition', |
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| 62 | 'NOT LIKE' => 'buildLikeCondition', |
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| 63 | 'OR LIKE' => 'buildLikeCondition', |
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| 64 | 'OR NOT LIKE' => 'buildLikeCondition', |
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| 65 | 'EXISTS' => 'buildExistsCondition', |
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| 66 | 'NOT EXISTS' => 'buildExistsCondition', |
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| 67 | ]; |
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| 68 | /** |
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| 69 | * @var array map of chars to their replacements in LIKE conditions. |
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| 70 | * By default it's configured to escape `%`, `_` and `\` with `\`. |
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| 71 | * @since 2.0.12. |
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| 72 | */ |
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| 73 | protected $likeEscapingReplacements = [ |
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| 74 | '%' => '\%', |
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| 75 | '_' => '\_', |
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| 76 | '\\' => '\\\\', |
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| 77 | ]; |
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| 78 | /** |
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| 79 | * @var string|null character used to escape special characters in LIKE conditions. |
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| 80 | * By default it's assumed to be `\`. |
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| 81 | * @since 2.0.12 |
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| 82 | */ |
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| 83 | protected $likeEscapeCharacter; |
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| 84 | |||
| 85 | |||
| 86 | /** |
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| 87 | * Constructor. |
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| 88 | * @param Connection $connection the database connection. |
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| 89 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 90 | */ |
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| 91 | 1069 | public function __construct($connection, $config = []) |
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| 96 | |||
| 97 | /** |
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| 98 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 99 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 100 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 101 | * be included in the result with the additional parameters generated during the query building process. |
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| 102 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 103 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 104 | * include those provided in `$params`. |
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| 105 | */ |
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| 106 | 597 | public function build($query, $params = []) |
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| 146 | |||
| 147 | /** |
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| 148 | * Creates an INSERT SQL statement. |
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| 149 | * For example, |
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| 150 | * |
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| 151 | * ```php |
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| 152 | * $sql = $queryBuilder->insert('user', [ |
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| 153 | * 'name' => 'Sam', |
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| 154 | * 'age' => 30, |
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| 155 | * ], $params); |
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| 156 | * ``` |
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| 157 | * |
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| 158 | * The method will properly escape the table and column names. |
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| 159 | * |
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| 160 | * @param string $table the table that new rows will be inserted into. |
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| 161 | * @param array|\yii\db\Query $columns the column data (name => value) to be inserted into the table or instance |
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| 162 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 163 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 164 | * @param array $params the binding parameters that will be generated by this method. |
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| 165 | * They should be bound to the DB command later. |
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| 166 | * @return string the INSERT SQL |
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| 167 | */ |
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| 168 | 199 | public function insert($table, $columns, &$params) |
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| 204 | |||
| 205 | /** |
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| 206 | * Prepare select-subquery and field names for INSERT INTO ... SELECT SQL statement. |
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| 207 | * |
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| 208 | * @param \yii\db\Query $columns Object, which represents select query. |
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| 209 | * @param \yii\db\Schema $schema Schema object to quote column name. |
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| 210 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 211 | * be included in the result with the additional parameters generated during the query building process. |
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| 212 | * @return array |
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| 213 | * @throws InvalidParamException if query's select does not contain named parameters only. |
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| 214 | * @since 2.0.11 |
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| 215 | */ |
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| 216 | 15 | protected function prepareInsertSelectSubQuery($columns, $schema, $params = []) |
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| 237 | |||
| 238 | /** |
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| 239 | * Generates a batch INSERT SQL statement. |
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| 240 | * For example, |
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| 241 | * |
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| 242 | * ```php |
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| 243 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 244 | * ['Tom', 30], |
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| 245 | * ['Jane', 20], |
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| 246 | * ['Linda', 25], |
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| 247 | * ]); |
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| 248 | * ``` |
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| 249 | * |
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| 250 | * Note that the values in each row must match the corresponding column names. |
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| 251 | * |
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| 252 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 253 | * |
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| 254 | * @param string $table the table that new rows will be inserted into. |
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| 255 | * @param array $columns the column names |
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| 256 | * @param array|\Generator $rows the rows to be batch inserted into the table |
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| 257 | * @return string the batch INSERT SQL statement |
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| 258 | */ |
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| 259 | 20 | public function batchInsert($table, $columns, $rows) |
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| 301 | |||
| 302 | /** |
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| 303 | * Creates an UPDATE SQL statement. |
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| 304 | * For example, |
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| 305 | * |
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| 306 | * ```php |
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| 307 | * $params = []; |
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| 308 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 309 | * ``` |
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| 310 | * |
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| 311 | * The method will properly escape the table and column names. |
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| 312 | * |
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| 313 | * @param string $table the table to be updated. |
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| 314 | * @param array $columns the column data (name => value) to be updated. |
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| 315 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 316 | * refer to [[Query::where()]] on how to specify condition. |
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| 317 | * @param array $params the binding parameters that will be modified by this method |
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| 318 | * so that they can be bound to the DB command later. |
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| 319 | * @return string the UPDATE SQL |
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| 320 | */ |
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| 321 | 87 | public function update($table, $columns, $condition, &$params) |
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| 348 | |||
| 349 | /** |
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| 350 | * Creates a DELETE SQL statement. |
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| 351 | * For example, |
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| 352 | * |
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| 353 | * ```php |
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| 354 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 355 | * ``` |
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| 356 | * |
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| 357 | * The method will properly escape the table and column names. |
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| 358 | * |
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| 359 | * @param string $table the table where the data will be deleted from. |
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| 360 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 361 | * refer to [[Query::where()]] on how to specify condition. |
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| 362 | * @param array $params the binding parameters that will be modified by this method |
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| 363 | * so that they can be bound to the DB command later. |
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| 364 | * @return string the DELETE SQL |
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| 365 | */ |
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| 366 | 195 | public function delete($table, $condition, &$params) |
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| 373 | |||
| 374 | /** |
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| 375 | * Builds a SQL statement for creating a new DB table. |
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| 376 | * |
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| 377 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 378 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 379 | * stands for the column type which can contain an abstract DB type. |
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| 380 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 381 | * |
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| 382 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 383 | * inserted into the generated SQL. |
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| 384 | * |
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| 385 | * For example, |
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| 386 | * |
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| 387 | * ```php |
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| 388 | * $sql = $queryBuilder->createTable('user', [ |
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| 389 | * 'id' => 'pk', |
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| 390 | * 'name' => 'string', |
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| 391 | * 'age' => 'integer', |
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| 392 | * ]); |
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| 393 | * ``` |
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| 394 | * |
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| 395 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 396 | * @param array $columns the columns (name => definition) in the new table. |
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| 397 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 398 | * @return string the SQL statement for creating a new DB table. |
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| 399 | */ |
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| 400 | 103 | public function createTable($table, $columns, $options = null) |
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| 414 | |||
| 415 | /** |
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| 416 | * Builds a SQL statement for renaming a DB table. |
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| 417 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 418 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 419 | * @return string the SQL statement for renaming a DB table. |
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| 420 | */ |
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| 421 | 1 | public function renameTable($oldName, $newName) |
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| 425 | |||
| 426 | /** |
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| 427 | * Builds a SQL statement for dropping a DB table. |
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| 428 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 429 | * @return string the SQL statement for dropping a DB table. |
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| 430 | */ |
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| 431 | 18 | public function dropTable($table) |
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| 435 | |||
| 436 | /** |
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| 437 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 438 | * @param string $name the name of the primary key constraint. |
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| 439 | * @param string $table the table that the primary key constraint will be added to. |
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| 440 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 441 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 442 | */ |
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| 443 | 6 | public function addPrimaryKey($name, $table, $columns) |
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| 457 | |||
| 458 | /** |
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| 459 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 460 | * @param string $name the name of the primary key constraint to be removed. |
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| 461 | * @param string $table the table that the primary key constraint will be removed from. |
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| 462 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 463 | */ |
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| 464 | 2 | public function dropPrimaryKey($name, $table) |
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| 469 | |||
| 470 | /** |
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| 471 | * Builds a SQL statement for truncating a DB table. |
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| 472 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 473 | * @return string the SQL statement for truncating a DB table. |
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| 474 | */ |
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| 475 | 9 | public function truncateTable($table) |
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| 479 | |||
| 480 | /** |
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| 481 | * Builds a SQL statement for adding a new DB column. |
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| 482 | * @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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| 483 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 484 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 485 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 486 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 487 | * @return string the SQL statement for adding a new column. |
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| 488 | */ |
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| 489 | 4 | public function addColumn($table, $column, $type) |
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| 495 | |||
| 496 | /** |
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| 497 | * Builds a SQL statement for dropping a DB column. |
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| 498 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 499 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 500 | * @return string the SQL statement for dropping a DB column. |
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| 501 | */ |
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| 502 | public function dropColumn($table, $column) |
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| 507 | |||
| 508 | /** |
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| 509 | * Builds a SQL statement for renaming a column. |
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| 510 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 511 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 512 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 513 | * @return string the SQL statement for renaming a DB column. |
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| 514 | */ |
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| 515 | public function renameColumn($table, $oldName, $newName) |
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| 521 | |||
| 522 | /** |
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| 523 | * Builds a SQL statement for changing the definition of a column. |
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| 524 | * @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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| 525 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 526 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 527 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 528 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 529 | * will become 'varchar(255) not null'. |
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| 530 | * @return string the SQL statement for changing the definition of a column. |
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| 531 | */ |
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| 532 | 1 | public function alterColumn($table, $column, $type) |
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| 539 | |||
| 540 | /** |
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| 541 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 542 | * The method will properly quote the table and column names. |
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| 543 | * @param string $name the name of the foreign key constraint. |
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| 544 | * @param string $table the table that the foreign key constraint will be added to. |
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| 545 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 546 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 547 | * @param string $refTable the table that the foreign key references to. |
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| 548 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 549 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 550 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 551 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 552 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 553 | */ |
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| 554 | 8 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 570 | |||
| 571 | /** |
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| 572 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 573 | * @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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| 574 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 575 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 576 | */ |
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| 577 | 3 | public function dropForeignKey($name, $table) |
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| 582 | |||
| 583 | /** |
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| 584 | * Builds a SQL statement for creating a new index. |
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| 585 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 586 | * @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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| 587 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 588 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 589 | * by the method, unless a parenthesis is found in the name. |
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| 590 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
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| 591 | * @return string the SQL statement for creating a new index. |
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| 592 | */ |
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| 593 | 6 | public function createIndex($name, $table, $columns, $unique = false) |
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| 600 | |||
| 601 | /** |
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| 602 | * Builds a SQL statement for dropping an index. |
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| 603 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 604 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 605 | * @return string the SQL statement for dropping an index. |
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| 606 | */ |
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| 607 | 4 | public function dropIndex($name, $table) |
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| 611 | |||
| 612 | /** |
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| 613 | * Creates a SQL command for adding an unique constraint to an existing table. |
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| 614 | * @param string $name the name of the unique constraint. |
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| 615 | * The name will be properly quoted by the method. |
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| 616 | * @param string $table the table that the unique constraint will be added to. |
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| 617 | * The name will be properly quoted by the method. |
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| 618 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 619 | * If there are multiple columns, separate them with commas. |
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| 620 | * The name will be properly quoted by the method. |
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| 621 | * @return string the SQL statement for adding an unique constraint to an existing table. |
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| 622 | * @since 2.0.13 |
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| 623 | */ |
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| 624 | 6 | public function addUnique($name, $table, $columns) |
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| 636 | |||
| 637 | /** |
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| 638 | * Creates a SQL command for dropping an unique constraint. |
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| 639 | * @param string $name the name of the unique constraint to be dropped. |
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| 640 | * The name will be properly quoted by the method. |
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| 641 | * @param string $table the table whose unique constraint is to be dropped. |
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| 642 | * The name will be properly quoted by the method. |
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| 643 | * @return string the SQL statement for dropping an unique constraint. |
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| 644 | * @since 2.0.13 |
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| 645 | */ |
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| 646 | 2 | public function dropUnique($name, $table) |
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| 651 | |||
| 652 | /** |
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| 653 | * Creates a SQL command for adding a check constraint to an existing table. |
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| 654 | * @param string $name the name of the check constraint. |
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| 655 | * The name will be properly quoted by the method. |
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| 656 | * @param string $table the table that the check constraint will be added to. |
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| 657 | * The name will be properly quoted by the method. |
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| 658 | * @param string $expression the SQL of the `CHECK` constraint. |
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| 659 | * @return string the SQL statement for adding a check constraint to an existing table. |
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| 660 | * @since 2.0.13 |
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| 661 | */ |
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| 662 | 2 | public function addCheck($name, $table, $expression) |
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| 667 | |||
| 668 | /** |
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| 669 | * Creates a SQL command for dropping a check constraint. |
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| 670 | * @param string $name the name of the check constraint to be dropped. |
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| 671 | * The name will be properly quoted by the method. |
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| 672 | * @param string $table the table whose check constraint is to be dropped. |
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| 673 | * The name will be properly quoted by the method. |
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| 674 | * @return string the SQL statement for dropping a check constraint. |
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| 675 | * @since 2.0.13 |
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| 676 | */ |
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| 677 | 2 | public function dropCheck($name, $table) |
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| 682 | |||
| 683 | /** |
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| 684 | * Creates a SQL command for adding a default value constraint to an existing table. |
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| 685 | * @param string $name the name of the default value constraint. |
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| 686 | * The name will be properly quoted by the method. |
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| 687 | * @param string $table the table that the default value constraint will be added to. |
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| 688 | * The name will be properly quoted by the method. |
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| 689 | * @param string $column the name of the column to that the constraint will be added on. |
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| 690 | * The name will be properly quoted by the method. |
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| 691 | * @param mixed $value default value. |
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| 692 | * @return string the SQL statement for adding a default value constraint to an existing table. |
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| 693 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
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| 694 | * @since 2.0.13 |
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| 695 | */ |
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| 696 | public function addDefaultValue($name, $table, $column, $value) |
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| 700 | |||
| 701 | /** |
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| 702 | * Creates a SQL command for dropping a default value constraint. |
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| 703 | * @param string $name the name of the default value constraint to be dropped. |
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| 704 | * The name will be properly quoted by the method. |
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| 705 | * @param string $table the table whose default value constraint is to be dropped. |
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| 706 | * The name will be properly quoted by the method. |
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| 707 | * @return string the SQL statement for dropping a default value constraint. |
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| 708 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
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| 709 | * @since 2.0.13 |
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| 710 | */ |
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| 711 | public function dropDefaultValue($name, $table) |
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| 715 | |||
| 716 | /** |
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| 717 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 718 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 719 | * will have the specified value or 1. |
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| 720 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 721 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 722 | * the next new row's primary key will have a value 1. |
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| 723 | * @return string the SQL statement for resetting sequence |
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| 724 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 725 | */ |
||
| 726 | public function resetSequence($table, $value = null) |
||
| 730 | |||
| 731 | /** |
||
| 732 | * Builds a SQL statement for enabling or disabling integrity check. |
||
| 733 | * @param bool $check whether to turn on or off the integrity check. |
||
| 734 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
||
| 735 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
||
| 736 | * @return string the SQL statement for checking integrity |
||
| 737 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 738 | */ |
||
| 739 | public function checkIntegrity($check = true, $schema = '', $table = '') |
||
| 743 | |||
| 744 | /** |
||
| 745 | * Builds a SQL command for adding comment to column |
||
| 746 | * |
||
| 747 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 748 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 749 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 750 | * @return string the SQL statement for adding comment on column |
||
| 751 | * @since 2.0.8 |
||
| 752 | */ |
||
| 753 | 2 | public function addCommentOnColumn($table, $column, $comment) |
|
| 754 | { |
||
| 755 | 2 | return 'COMMENT ON COLUMN ' . $this->db->quoteTableName($table) . '.' . $this->db->quoteColumnName($column) . ' IS ' . $this->db->quoteValue($comment); |
|
| 756 | } |
||
| 757 | |||
| 758 | /** |
||
| 759 | * Builds a SQL command for adding comment to table |
||
| 760 | * |
||
| 761 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 762 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 763 | * @return string the SQL statement for adding comment on table |
||
| 764 | * @since 2.0.8 |
||
| 765 | */ |
||
| 766 | 1 | public function addCommentOnTable($table, $comment) |
|
| 767 | { |
||
| 768 | 1 | return 'COMMENT ON TABLE ' . $this->db->quoteTableName($table) . ' IS ' . $this->db->quoteValue($comment); |
|
| 769 | } |
||
| 770 | |||
| 771 | /** |
||
| 772 | * Builds a SQL command for adding comment to column |
||
| 773 | * |
||
| 774 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 775 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 776 | * @return string the SQL statement for adding comment on column |
||
| 777 | * @since 2.0.8 |
||
| 778 | */ |
||
| 779 | 2 | public function dropCommentFromColumn($table, $column) |
|
| 780 | { |
||
| 781 | 2 | return 'COMMENT ON COLUMN ' . $this->db->quoteTableName($table) . '.' . $this->db->quoteColumnName($column) . ' IS NULL'; |
|
| 782 | } |
||
| 783 | |||
| 784 | /** |
||
| 785 | * Builds a SQL command for adding comment to table |
||
| 786 | * |
||
| 787 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 788 | * @return string the SQL statement for adding comment on column |
||
| 789 | * @since 2.0.8 |
||
| 790 | */ |
||
| 791 | 1 | public function dropCommentFromTable($table) |
|
| 792 | { |
||
| 793 | 1 | return 'COMMENT ON TABLE ' . $this->db->quoteTableName($table) . ' IS NULL'; |
|
| 794 | } |
||
| 795 | |||
| 796 | /** |
||
| 797 | * Converts an abstract column type into a physical column type. |
||
| 798 | * The conversion is done using the type map specified in [[typeMap]]. |
||
| 799 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
||
| 800 | * physical types): |
||
| 801 | * |
||
| 802 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 803 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 804 | * - `unsignedpk`: an unsigned auto-incremental primary key type, will be converted into "int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 805 | * - `char`: char type, will be converted into "char(1)" |
||
| 806 | * - `string`: string type, will be converted into "varchar(255)" |
||
| 807 | * - `text`: a long string type, will be converted into "text" |
||
| 808 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
||
| 809 | * - `integer`: integer type, will be converted into "int(11)" |
||
| 810 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
||
| 811 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
||
| 812 | * - `float``: float number type, will be converted into "float" |
||
| 813 | * - `decimal`: decimal number type, will be converted into "decimal" |
||
| 814 | * - `datetime`: datetime type, will be converted into "datetime" |
||
| 815 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
||
| 816 | * - `time`: time type, will be converted into "time" |
||
| 817 | * - `date`: date type, will be converted into "date" |
||
| 818 | * - `money`: money type, will be converted into "decimal(19,4)" |
||
| 819 | * - `binary`: binary data type, will be converted into "blob" |
||
| 820 | * |
||
| 821 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
||
| 822 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
||
| 823 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
||
| 824 | * |
||
| 825 | * For some of the abstract types you can also specify a length or precision constraint |
||
| 826 | * by appending it in round brackets directly to the type. |
||
| 827 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
||
| 828 | * If the underlying DBMS does not support these kind of constraints for a type it will |
||
| 829 | * be ignored. |
||
| 830 | * |
||
| 831 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
||
| 832 | * @param string|ColumnSchemaBuilder $type abstract column type |
||
| 833 | * @return string physical column type. |
||
| 834 | */ |
||
| 835 | 107 | public function getColumnType($type) |
|
| 836 | { |
||
| 837 | 107 | if ($type instanceof ColumnSchemaBuilder) { |
|
| 838 | 13 | $type = $type->__toString(); |
|
| 839 | } |
||
| 840 | |||
| 841 | 107 | if (isset($this->typeMap[$type])) { |
|
| 842 | 92 | return $this->typeMap[$type]; |
|
| 843 | 54 | } elseif (preg_match('/^(\w+)\((.+?)\)(.*)$/', $type, $matches)) { |
|
| 844 | 30 | if (isset($this->typeMap[$matches[1]])) { |
|
| 845 | 30 | return preg_replace('/\(.+\)/', '(' . $matches[2] . ')', $this->typeMap[$matches[1]]) . $matches[3]; |
|
| 846 | } |
||
| 847 | 32 | } elseif (preg_match('/^(\w+)\s+/', $type, $matches)) { |
|
| 848 | 29 | if (isset($this->typeMap[$matches[1]])) { |
|
| 849 | 29 | return preg_replace('/^\w+/', $this->typeMap[$matches[1]], $type); |
|
| 850 | } |
||
| 851 | } |
||
| 852 | |||
| 853 | 23 | return $type; |
|
| 854 | } |
||
| 855 | |||
| 856 | /** |
||
| 857 | * @param array $columns |
||
| 858 | * @param array $params the binding parameters to be populated |
||
| 859 | * @param bool $distinct |
||
| 860 | * @param string $selectOption |
||
| 861 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 862 | */ |
||
| 863 | 878 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 864 | { |
||
| 865 | 878 | $select = $distinct ? 'SELECT DISTINCT' : 'SELECT'; |
|
| 866 | 878 | if ($selectOption !== null) { |
|
| 867 | $select .= ' ' . $selectOption; |
||
| 868 | } |
||
| 869 | |||
| 870 | 878 | if (empty($columns)) { |
|
| 871 | 704 | return $select . ' *'; |
|
| 872 | } |
||
| 873 | |||
| 874 | 399 | foreach ($columns as $i => $column) { |
|
| 875 | 399 | if ($column instanceof Expression) { |
|
| 876 | 6 | if (is_int($i)) { |
|
| 877 | 6 | $columns[$i] = $column->expression; |
|
| 878 | } else { |
||
| 879 | 3 | $columns[$i] = $column->expression . ' AS ' . $this->db->quoteColumnName($i); |
|
| 880 | } |
||
| 881 | 6 | $params = array_merge($params, $column->params); |
|
| 882 | 396 | } elseif ($column instanceof Query) { |
|
| 883 | 3 | list($sql, $params) = $this->build($column, $params); |
|
| 884 | 3 | $columns[$i] = "($sql) AS " . $this->db->quoteColumnName($i); |
|
| 885 | 396 | } elseif (is_string($i)) { |
|
| 886 | 21 | if (strpos($column, '(') === false) { |
|
| 887 | 21 | $column = $this->db->quoteColumnName($column); |
|
| 888 | } |
||
| 889 | 21 | $columns[$i] = "$column AS " . $this->db->quoteColumnName($i); |
|
| 890 | 391 | } elseif (strpos($column, '(') === false) { |
|
| 891 | 310 | if (preg_match('/^(.*?)(?i:\s+as\s+|\s+)([\w\-_\.]+)$/', $column, $matches)) { |
|
| 892 | 6 | $columns[$i] = $this->db->quoteColumnName($matches[1]) . ' AS ' . $this->db->quoteColumnName($matches[2]); |
|
| 893 | } else { |
||
| 894 | 399 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 895 | } |
||
| 896 | } |
||
| 897 | } |
||
| 898 | |||
| 899 | 399 | return $select . ' ' . implode(', ', $columns); |
|
| 900 | } |
||
| 901 | |||
| 902 | /** |
||
| 903 | * @param array $tables |
||
| 904 | * @param array $params the binding parameters to be populated |
||
| 905 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 906 | */ |
||
| 907 | 878 | public function buildFrom($tables, &$params) |
|
| 908 | { |
||
| 909 | 878 | if (empty($tables)) { |
|
| 910 | 274 | return ''; |
|
| 911 | } |
||
| 912 | |||
| 913 | 623 | $tables = $this->quoteTableNames($tables, $params); |
|
| 914 | |||
| 915 | 623 | return 'FROM ' . implode(', ', $tables); |
|
| 916 | } |
||
| 917 | |||
| 918 | /** |
||
| 919 | * @param array $joins |
||
| 920 | * @param array $params the binding parameters to be populated |
||
| 921 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 922 | * @throws Exception if the $joins parameter is not in proper format |
||
| 923 | */ |
||
| 924 | 878 | public function buildJoin($joins, &$params) |
|
| 925 | { |
||
| 926 | 878 | if (empty($joins)) { |
|
| 927 | 866 | return ''; |
|
| 928 | } |
||
| 929 | |||
| 930 | 51 | foreach ($joins as $i => $join) { |
|
| 931 | 51 | if (!is_array($join) || !isset($join[0], $join[1])) { |
|
| 932 | throw new Exception('A join clause must be specified as an array of join type, join table, and optionally join condition.'); |
||
| 933 | } |
||
| 934 | // 0:join type, 1:join table, 2:on-condition (optional) |
||
| 935 | 51 | list($joinType, $table) = $join; |
|
| 936 | 51 | $tables = $this->quoteTableNames((array) $table, $params); |
|
| 937 | 51 | $table = reset($tables); |
|
| 938 | 51 | $joins[$i] = "$joinType $table"; |
|
| 939 | 51 | if (isset($join[2])) { |
|
| 940 | 51 | $condition = $this->buildCondition($join[2], $params); |
|
| 941 | 51 | if ($condition !== '') { |
|
| 942 | 51 | $joins[$i] .= ' ON ' . $condition; |
|
| 943 | } |
||
| 944 | } |
||
| 945 | } |
||
| 946 | |||
| 947 | 51 | return implode($this->separator, $joins); |
|
| 948 | } |
||
| 949 | |||
| 950 | /** |
||
| 951 | * Quotes table names passed |
||
| 952 | * |
||
| 953 | * @param array $tables |
||
| 954 | * @param array $params |
||
| 955 | * @return array |
||
| 956 | */ |
||
| 957 | 623 | private function quoteTableNames($tables, &$params) |
|
| 958 | { |
||
| 959 | 623 | foreach ($tables as $i => $table) { |
|
| 960 | 623 | if ($table instanceof Query) { |
|
| 961 | 10 | list($sql, $params) = $this->build($table, $params); |
|
| 962 | 10 | $tables[$i] = "($sql) " . $this->db->quoteTableName($i); |
|
| 963 | 623 | } elseif (is_string($i)) { |
|
| 964 | 54 | if (strpos($table, '(') === false) { |
|
| 965 | 45 | $table = $this->db->quoteTableName($table); |
|
| 966 | } |
||
| 967 | 54 | $tables[$i] = "$table " . $this->db->quoteTableName($i); |
|
| 968 | 615 | } elseif (strpos($table, '(') === false) { |
|
| 969 | 611 | if (preg_match('/^(.*?)(?i:\s+as|)\s+([^ ]+)$/', $table, $matches)) { // with alias |
|
| 970 | 21 | $tables[$i] = $this->db->quoteTableName($matches[1]) . ' ' . $this->db->quoteTableName($matches[2]); |
|
| 971 | } else { |
||
| 972 | 623 | $tables[$i] = $this->db->quoteTableName($table); |
|
| 973 | } |
||
| 974 | } |
||
| 975 | } |
||
| 976 | 623 | return $tables; |
|
| 977 | } |
||
| 978 | |||
| 979 | /** |
||
| 980 | * @param string|array $condition |
||
| 981 | * @param array $params the binding parameters to be populated |
||
| 982 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 983 | */ |
||
| 984 | 903 | public function buildWhere($condition, &$params) |
|
| 985 | { |
||
| 986 | 903 | $where = $this->buildCondition($condition, $params); |
|
| 987 | |||
| 988 | 903 | return $where === '' ? '' : 'WHERE ' . $where; |
|
| 989 | } |
||
| 990 | |||
| 991 | /** |
||
| 992 | * @param array $columns |
||
| 993 | * @return string the GROUP BY clause |
||
| 994 | */ |
||
| 995 | 878 | public function buildGroupBy($columns) |
|
| 996 | { |
||
| 997 | 878 | if (empty($columns)) { |
|
| 998 | 872 | return ''; |
|
| 999 | } |
||
| 1000 | 19 | foreach ($columns as $i => $column) { |
|
| 1001 | 19 | if ($column instanceof Expression) { |
|
| 1002 | 3 | $columns[$i] = $column->expression; |
|
| 1003 | 19 | } elseif (strpos($column, '(') === false) { |
|
| 1004 | 19 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 1005 | } |
||
| 1006 | } |
||
| 1007 | 19 | return 'GROUP BY ' . implode(', ', $columns); |
|
| 1008 | } |
||
| 1009 | |||
| 1010 | /** |
||
| 1011 | * @param string|array $condition |
||
| 1012 | * @param array $params the binding parameters to be populated |
||
| 1013 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 1014 | */ |
||
| 1015 | 878 | public function buildHaving($condition, &$params) |
|
| 1016 | { |
||
| 1017 | 878 | $having = $this->buildCondition($condition, $params); |
|
| 1018 | |||
| 1019 | 878 | return $having === '' ? '' : 'HAVING ' . $having; |
|
| 1020 | } |
||
| 1021 | |||
| 1022 | /** |
||
| 1023 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 1024 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 1025 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 1026 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 1027 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 1028 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 1029 | */ |
||
| 1030 | 878 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset) |
|
| 1031 | { |
||
| 1032 | 878 | $orderBy = $this->buildOrderBy($orderBy); |
|
| 1033 | 878 | if ($orderBy !== '') { |
|
| 1034 | 151 | $sql .= $this->separator . $orderBy; |
|
| 1035 | } |
||
| 1036 | 878 | $limit = $this->buildLimit($limit, $offset); |
|
| 1037 | 878 | if ($limit !== '') { |
|
| 1038 | 65 | $sql .= $this->separator . $limit; |
|
| 1039 | } |
||
| 1040 | 878 | return $sql; |
|
| 1041 | } |
||
| 1042 | |||
| 1043 | /** |
||
| 1044 | * @param array $columns |
||
| 1045 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 1046 | */ |
||
| 1047 | 878 | public function buildOrderBy($columns) |
|
| 1048 | { |
||
| 1049 | 878 | if (empty($columns)) { |
|
| 1050 | 846 | return ''; |
|
| 1051 | } |
||
| 1052 | 151 | $orders = []; |
|
| 1053 | 151 | foreach ($columns as $name => $direction) { |
|
| 1054 | 151 | if ($direction instanceof Expression) { |
|
| 1055 | 3 | $orders[] = $direction->expression; |
|
| 1056 | } else { |
||
| 1057 | 151 | $orders[] = $this->db->quoteColumnName($name) . ($direction === SORT_DESC ? ' DESC' : ''); |
|
| 1058 | } |
||
| 1059 | } |
||
| 1060 | |||
| 1061 | 151 | return 'ORDER BY ' . implode(', ', $orders); |
|
| 1062 | } |
||
| 1063 | |||
| 1064 | /** |
||
| 1065 | * @param int $limit |
||
| 1066 | * @param int $offset |
||
| 1067 | * @return string the LIMIT and OFFSET clauses |
||
| 1068 | */ |
||
| 1069 | 289 | public function buildLimit($limit, $offset) |
|
| 1070 | { |
||
| 1071 | 289 | $sql = ''; |
|
| 1072 | 289 | if ($this->hasLimit($limit)) { |
|
| 1073 | 16 | $sql = 'LIMIT ' . $limit; |
|
| 1074 | } |
||
| 1075 | 289 | if ($this->hasOffset($offset)) { |
|
| 1076 | 3 | $sql .= ' OFFSET ' . $offset; |
|
| 1077 | } |
||
| 1078 | |||
| 1079 | 289 | return ltrim($sql); |
|
| 1080 | } |
||
| 1081 | |||
| 1082 | /** |
||
| 1083 | * Checks to see if the given limit is effective. |
||
| 1084 | * @param mixed $limit the given limit |
||
| 1085 | * @return bool whether the limit is effective |
||
| 1086 | */ |
||
| 1087 | 570 | protected function hasLimit($limit) |
|
| 1088 | { |
||
| 1089 | 570 | return ($limit instanceof Expression) || ctype_digit((string) $limit); |
|
| 1090 | } |
||
| 1091 | |||
| 1092 | /** |
||
| 1093 | * Checks to see if the given offset is effective. |
||
| 1094 | * @param mixed $offset the given offset |
||
| 1095 | * @return bool whether the offset is effective |
||
| 1096 | */ |
||
| 1097 | 570 | protected function hasOffset($offset) |
|
| 1098 | { |
||
| 1099 | 570 | return ($offset instanceof Expression) || ctype_digit((string) $offset) && (string) $offset !== '0'; |
|
| 1100 | } |
||
| 1101 | |||
| 1102 | /** |
||
| 1103 | * @param array $unions |
||
| 1104 | * @param array $params the binding parameters to be populated |
||
| 1105 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 1106 | */ |
||
| 1107 | 597 | public function buildUnion($unions, &$params) |
|
| 1108 | { |
||
| 1109 | 597 | if (empty($unions)) { |
|
| 1110 | 597 | return ''; |
|
| 1111 | } |
||
| 1112 | |||
| 1113 | 8 | $result = ''; |
|
| 1114 | |||
| 1115 | 8 | foreach ($unions as $i => $union) { |
|
| 1116 | 8 | $query = $union['query']; |
|
| 1117 | 8 | if ($query instanceof Query) { |
|
| 1118 | 8 | list($unions[$i]['query'], $params) = $this->build($query, $params); |
|
| 1119 | } |
||
| 1120 | |||
| 1121 | 8 | $result .= 'UNION ' . ($union['all'] ? 'ALL ' : '') . '( ' . $unions[$i]['query'] . ' ) '; |
|
| 1122 | } |
||
| 1123 | |||
| 1124 | 8 | return trim($result); |
|
| 1125 | } |
||
| 1126 | |||
| 1127 | /** |
||
| 1128 | * Processes columns and properly quotes them if necessary. |
||
| 1129 | * It will join all columns into a string with comma as separators. |
||
| 1130 | * @param string|array $columns the columns to be processed |
||
| 1131 | * @return string the processing result |
||
| 1132 | */ |
||
| 1133 | 32 | public function buildColumns($columns) |
|
| 1134 | { |
||
| 1135 | 32 | if (!is_array($columns)) { |
|
| 1136 | 27 | if (strpos($columns, '(') !== false) { |
|
| 1137 | return $columns; |
||
| 1138 | } |
||
| 1139 | |||
| 1140 | 27 | $columns = preg_split('/\s*,\s*/', $columns, -1, PREG_SPLIT_NO_EMPTY); |
|
| 1141 | } |
||
| 1142 | 32 | foreach ($columns as $i => $column) { |
|
| 1143 | 32 | if ($column instanceof Expression) { |
|
| 1144 | $columns[$i] = $column->expression; |
||
| 1145 | 32 | } elseif (strpos($column, '(') === false) { |
|
| 1146 | 32 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 1147 | } |
||
| 1148 | } |
||
| 1149 | |||
| 1150 | 32 | return is_array($columns) ? implode(', ', $columns) : $columns; |
|
| 1151 | } |
||
| 1152 | |||
| 1153 | /** |
||
| 1154 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 1155 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 1156 | * on how to specify a condition. |
||
| 1157 | * @param array $params the binding parameters to be populated |
||
| 1158 | * @return string the generated SQL expression |
||
| 1159 | */ |
||
| 1160 | 903 | public function buildCondition($condition, &$params) |
|
| 1161 | { |
||
| 1162 | 903 | if ($condition instanceof Expression) { |
|
| 1163 | 9 | foreach ($condition->params as $n => $v) { |
|
| 1164 | 9 | $params[$n] = $v; |
|
| 1165 | } |
||
| 1166 | 9 | return $condition->expression; |
|
| 1167 | 903 | } elseif (!is_array($condition)) { |
|
| 1168 | 897 | return (string) $condition; |
|
| 1169 | } elseif (empty($condition)) { |
||
| 1170 | return ''; |
||
| 1171 | } |
||
| 1172 | |||
| 1173 | 706 | if (isset($condition[0])) { // operator format: operator, operand 1, operand 2, ... |
|
| 1174 | 456 | $operator = strtoupper($condition[0]); |
|
| 1175 | 456 | if (isset($this->conditionBuilders[$operator])) { |
|
| 1176 | 426 | $method = $this->conditionBuilders[$operator]; |
|
| 1177 | } else { |
||
| 1178 | 36 | $method = 'buildSimpleCondition'; |
|
| 1179 | } |
||
| 1180 | 456 | array_shift($condition); |
|
| 1181 | 456 | return $this->$method($operator, $condition, $params); |
|
| 1182 | } |
||
| 1183 | |||
| 1184 | // hash format: 'column1' => 'value1', 'column2' => 'value2', ... |
||
| 1185 | 483 | return $this->buildHashCondition($condition, $params); |
|
| 1186 | } |
||
| 1187 | |||
| 1188 | /** |
||
| 1189 | * Creates a condition based on column-value pairs. |
||
| 1190 | * @param array $condition the condition specification. |
||
| 1191 | * @param array $params the binding parameters to be populated |
||
| 1192 | * @return string the generated SQL expression |
||
| 1193 | */ |
||
| 1194 | 483 | public function buildHashCondition($condition, &$params) |
|
| 1221 | |||
| 1222 | /** |
||
| 1223 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1224 | * @param string $operator the operator to use for connecting the given operands |
||
| 1225 | * @param array $operands the SQL expressions to connect. |
||
| 1226 | * @param array $params the binding parameters to be populated |
||
| 1227 | * @return string the generated SQL expression |
||
| 1228 | */ |
||
| 1229 | 177 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1230 | { |
||
| 1231 | 177 | $parts = []; |
|
| 1232 | 177 | foreach ($operands as $operand) { |
|
| 1233 | 177 | if (is_array($operand)) { |
|
| 1234 | 152 | $operand = $this->buildCondition($operand, $params); |
|
| 1235 | } |
||
| 1236 | 177 | if ($operand instanceof Expression) { |
|
| 1237 | 6 | foreach ($operand->params as $n => $v) { |
|
| 1238 | 6 | $params[$n] = $v; |
|
| 1239 | } |
||
| 1240 | 6 | $operand = $operand->expression; |
|
| 1241 | } |
||
| 1242 | 177 | if ($operand !== '') { |
|
| 1243 | 177 | $parts[] = $operand; |
|
| 1244 | } |
||
| 1245 | } |
||
| 1246 | 177 | if (!empty($parts)) { |
|
| 1247 | 177 | return '(' . implode(") $operator (", $parts) . ')'; |
|
| 1248 | } |
||
| 1249 | |||
| 1250 | return ''; |
||
| 1251 | } |
||
| 1252 | |||
| 1253 | /** |
||
| 1254 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1255 | * @param string $operator the operator to use for connecting the given operands |
||
| 1256 | * @param array $operands the SQL expressions to connect. |
||
| 1257 | * @param array $params the binding parameters to be populated |
||
| 1258 | * @return string the generated SQL expression |
||
| 1259 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1260 | */ |
||
| 1261 | 6 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1262 | { |
||
| 1263 | 6 | if (count($operands) !== 1) { |
|
| 1264 | throw new InvalidParamException("Operator '$operator' requires exactly one operand."); |
||
| 1265 | } |
||
| 1266 | |||
| 1267 | 6 | $operand = reset($operands); |
|
| 1268 | 6 | if (is_array($operand) || $operand instanceof Expression) { |
|
| 1269 | 3 | $operand = $this->buildCondition($operand, $params); |
|
| 1270 | } |
||
| 1271 | 6 | if ($operand === '') { |
|
| 1272 | return ''; |
||
| 1273 | } |
||
| 1274 | |||
| 1275 | 6 | return "$operator ($operand)"; |
|
| 1276 | } |
||
| 1277 | |||
| 1278 | /** |
||
| 1279 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1280 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1281 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1282 | * describe the interval that column value should be in. |
||
| 1283 | * @param array $params the binding parameters to be populated |
||
| 1284 | * @return string the generated SQL expression |
||
| 1285 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1286 | */ |
||
| 1287 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1319 | |||
| 1320 | /** |
||
| 1321 | * Creates an SQL expressions with the `IN` operator. |
||
| 1322 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1323 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1324 | * a composite IN condition will be generated. |
||
| 1325 | * The second operand is an array of values that column value should be among. |
||
| 1326 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1327 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1328 | * @param array $params the binding parameters to be populated |
||
| 1329 | * @return string the generated SQL expression |
||
| 1330 | * @throws Exception if wrong number of operands have been given. |
||
| 1331 | */ |
||
| 1332 | 228 | public function buildInCondition($operator, $operands, &$params) |
|
| 1333 | { |
||
| 1334 | 228 | if (!isset($operands[0], $operands[1])) { |
|
| 1335 | throw new Exception("Operator '$operator' requires two operands."); |
||
| 1336 | } |
||
| 1337 | |||
| 1338 | 228 | list($column, $values) = $operands; |
|
| 1339 | |||
| 1340 | 228 | if ($column === []) { |
|
| 1341 | // no columns to test against |
||
| 1342 | return $operator === 'IN' ? '0=1' : ''; |
||
| 1343 | } |
||
| 1344 | |||
| 1345 | 228 | if ($values instanceof Query) { |
|
| 1346 | 14 | return $this->buildSubqueryInCondition($operator, $column, $values, $params); |
|
| 1347 | } |
||
| 1348 | 214 | if (!is_array($values) && !$values instanceof \Traversable) { |
|
| 1349 | // ensure values is an array |
||
| 1350 | 3 | $values = (array) $values; |
|
| 1351 | } |
||
| 1352 | |||
| 1353 | 214 | if ($column instanceof \Traversable || ((is_array($column) || $column instanceof \Countable) && count($column) > 1)) { |
|
| 1354 | 15 | return $this->buildCompositeInCondition($operator, $column, $values, $params); |
|
| 1355 | 202 | } elseif (is_array($column)) { |
|
| 1356 | 133 | $column = reset($column); |
|
| 1357 | } |
||
| 1358 | |||
| 1359 | 202 | $sqlValues = []; |
|
| 1360 | 202 | foreach ($values as $i => $value) { |
|
| 1361 | 202 | if (is_array($value) || $value instanceof \ArrayAccess) { |
|
| 1362 | $value = isset($value[$column]) ? $value[$column] : null; |
||
| 1363 | } |
||
| 1364 | 202 | if ($value === null) { |
|
| 1365 | $sqlValues[$i] = 'NULL'; |
||
| 1366 | 202 | } elseif ($value instanceof Expression) { |
|
| 1367 | $sqlValues[$i] = $value->expression; |
||
| 1368 | foreach ($value->params as $n => $v) { |
||
| 1369 | $params[$n] = $v; |
||
| 1370 | } |
||
| 1371 | } else { |
||
| 1372 | 202 | $phName = self::PARAM_PREFIX . count($params); |
|
| 1373 | 202 | $params[$phName] = $value; |
|
| 1374 | 202 | $sqlValues[$i] = $phName; |
|
| 1375 | } |
||
| 1376 | } |
||
| 1377 | |||
| 1378 | 202 | if (empty($sqlValues)) { |
|
| 1379 | 18 | return $operator === 'IN' ? '0=1' : ''; |
|
| 1380 | } |
||
| 1381 | |||
| 1382 | 202 | if (strpos($column, '(') === false) { |
|
| 1383 | 202 | $column = $this->db->quoteColumnName($column); |
|
| 1384 | } |
||
| 1385 | |||
| 1386 | 202 | if (count($sqlValues) > 1) { |
|
| 1387 | 139 | return "$column $operator (" . implode(', ', $sqlValues) . ')'; |
|
| 1388 | } |
||
| 1389 | |||
| 1390 | 136 | $operator = $operator === 'IN' ? '=' : '<>'; |
|
| 1391 | 136 | return $column . $operator . reset($sqlValues); |
|
| 1392 | } |
||
| 1393 | |||
| 1394 | /** |
||
| 1395 | * Builds SQL for IN condition |
||
| 1396 | * |
||
| 1397 | * @param string $operator |
||
| 1398 | * @param array $columns |
||
| 1399 | * @param Query $values |
||
| 1400 | * @param array $params |
||
| 1401 | * @return string SQL |
||
| 1402 | */ |
||
| 1403 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1421 | |||
| 1422 | /** |
||
| 1423 | * Builds SQL for IN condition |
||
| 1424 | * |
||
| 1425 | * @param string $operator |
||
| 1426 | * @param array|\Traversable $columns |
||
| 1427 | * @param array $values |
||
| 1428 | * @param array $params |
||
| 1429 | * @return string SQL |
||
| 1430 | */ |
||
| 1431 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1459 | |||
| 1460 | /** |
||
| 1461 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1462 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1463 | * @param array $operands an array of two or three operands |
||
| 1464 | * |
||
| 1465 | * - The first operand is the column name. |
||
| 1466 | * - The second operand is a single value or an array of values that column value |
||
| 1467 | * should be compared with. If it is an empty array the generated expression will |
||
| 1468 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1469 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1470 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1471 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1472 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1473 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1474 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1475 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1476 | * @param array $params the binding parameters to be populated |
||
| 1477 | * @return string the generated SQL expression |
||
| 1478 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1479 | */ |
||
| 1480 | 75 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1530 | |||
| 1531 | /** |
||
| 1532 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1533 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1534 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1535 | * @param array $params the binding parameters to be populated |
||
| 1536 | * @return string the generated SQL expression |
||
| 1537 | * @throws InvalidParamException if the operand is not a [[Query]] object. |
||
| 1538 | */ |
||
| 1539 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1548 | |||
| 1549 | /** |
||
| 1550 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1551 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1552 | * @param array $operands contains two column names. |
||
| 1553 | * @param array $params the binding parameters to be populated |
||
| 1554 | * @return string the generated SQL expression |
||
| 1555 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1556 | */ |
||
| 1557 | 36 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1585 | |||
| 1586 | /** |
||
| 1587 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1588 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1589 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1590 | * @since 2.0.8 |
||
| 1591 | */ |
||
| 1592 | 60 | public function selectExists($rawSql) |
|
| 1596 | } |
||
| 1597 |
