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 |
||
| 26 | class QueryBuilder extends \yii\base\Object |
||
| 27 | { |
||
| 28 | /** |
||
| 29 | * The prefix for automatically generated query binding parameters. |
||
| 30 | */ |
||
| 31 | const PARAM_PREFIX = ':qp'; |
||
| 32 | |||
| 33 | /** |
||
| 34 | * @var Connection the database connection. |
||
| 35 | */ |
||
| 36 | public $db; |
||
| 37 | /** |
||
| 38 | * @var string the separator between different fragments of a SQL statement. |
||
| 39 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
||
| 40 | */ |
||
| 41 | public $separator = ' '; |
||
| 42 | /** |
||
| 43 | * @var array the abstract column types mapped to physical column types. |
||
| 44 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
||
| 45 | * Child classes should override this property to declare supported type mappings. |
||
| 46 | */ |
||
| 47 | public $typeMap = []; |
||
| 48 | |||
| 49 | /** |
||
| 50 | * @var array map of query condition to builder methods. |
||
| 51 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
||
| 52 | */ |
||
| 53 | protected $conditionBuilders = [ |
||
| 54 | 'NOT' => 'buildNotCondition', |
||
| 55 | 'AND' => 'buildAndCondition', |
||
| 56 | 'OR' => 'buildAndCondition', |
||
| 57 | 'BETWEEN' => 'buildBetweenCondition', |
||
| 58 | 'NOT BETWEEN' => 'buildBetweenCondition', |
||
| 59 | 'IN' => 'buildInCondition', |
||
| 60 | 'NOT IN' => 'buildInCondition', |
||
| 61 | 'LIKE' => 'buildLikeCondition', |
||
| 62 | 'NOT LIKE' => 'buildLikeCondition', |
||
| 63 | 'OR LIKE' => 'buildLikeCondition', |
||
| 64 | 'OR NOT LIKE' => 'buildLikeCondition', |
||
| 65 | 'EXISTS' => 'buildExistsCondition', |
||
| 66 | 'NOT EXISTS' => 'buildExistsCondition', |
||
| 67 | ]; |
||
| 68 | |||
| 69 | |||
| 70 | /** |
||
| 71 | * Constructor. |
||
| 72 | * @param Connection $connection the database connection. |
||
| 73 | * @param array $config name-value pairs that will be used to initialize the object properties |
||
| 74 | */ |
||
| 75 | 767 | public function __construct($connection, $config = []) |
|
| 80 | |||
| 81 | /** |
||
| 82 | * Generates a SELECT SQL statement from a [[Query]] object. |
||
| 83 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
||
| 84 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
||
| 85 | * be included in the result with the additional parameters generated during the query building process. |
||
| 86 | * @return array the generated SQL statement (the first array element) and the corresponding |
||
| 87 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
||
| 88 | * include those provided in `$params`. |
||
| 89 | */ |
||
| 90 | 529 | public function build($query, $params = []) |
|
| 130 | |||
| 131 | /** |
||
| 132 | * Creates an INSERT SQL statement. |
||
| 133 | * For example, |
||
| 134 | * |
||
| 135 | * ```php |
||
| 136 | * $sql = $queryBuilder->insert('user', [ |
||
| 137 | * 'name' => 'Sam', |
||
| 138 | * 'age' => 30, |
||
| 139 | * ], $params); |
||
| 140 | * ``` |
||
| 141 | * |
||
| 142 | * The method will properly escape the table and column names. |
||
| 143 | * |
||
| 144 | * @param string $table the table that new rows will be inserted into. |
||
| 145 | * @param array $columns the column data (name => value) to be inserted into the table. |
||
| 146 | * @param array $params the binding parameters that will be generated by this method. |
||
| 147 | * They should be bound to the DB command later. |
||
| 148 | * @return string the INSERT SQL |
||
| 149 | */ |
||
| 150 | 101 | public function insert($table, $columns, &$params) |
|
| 178 | |||
| 179 | /** |
||
| 180 | * Generates a batch INSERT SQL statement. |
||
| 181 | * For example, |
||
| 182 | * |
||
| 183 | * ```php |
||
| 184 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
||
| 185 | * ['Tom', 30], |
||
| 186 | * ['Jane', 20], |
||
| 187 | * ['Linda', 25], |
||
| 188 | * ]); |
||
| 189 | * ``` |
||
| 190 | * |
||
| 191 | * Note that the values in each row must match the corresponding column names. |
||
| 192 | * |
||
| 193 | * The method will properly escape the column names, and quote the values to be inserted. |
||
| 194 | * |
||
| 195 | * @param string $table the table that new rows will be inserted into. |
||
| 196 | * @param array $columns the column names |
||
| 197 | * @param array $rows the rows to be batch inserted into the table |
||
| 198 | * @return string the batch INSERT SQL statement |
||
| 199 | */ |
||
| 200 | 3 | public function batchInsert($table, $columns, $rows) |
|
| 239 | |||
| 240 | /** |
||
| 241 | * Creates an UPDATE SQL statement. |
||
| 242 | * For example, |
||
| 243 | * |
||
| 244 | * ```php |
||
| 245 | * $params = []; |
||
| 246 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
||
| 247 | * ``` |
||
| 248 | * |
||
| 249 | * The method will properly escape the table and column names. |
||
| 250 | * |
||
| 251 | * @param string $table the table to be updated. |
||
| 252 | * @param array $columns the column data (name => value) to be updated. |
||
| 253 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
||
| 254 | * refer to [[Query::where()]] on how to specify condition. |
||
| 255 | * @param array $params the binding parameters that will be modified by this method |
||
| 256 | * so that they can be bound to the DB command later. |
||
| 257 | * @return string the UPDATE SQL |
||
| 258 | */ |
||
| 259 | 67 | public function update($table, $columns, $condition, &$params) |
|
| 286 | |||
| 287 | /** |
||
| 288 | * Creates a DELETE SQL statement. |
||
| 289 | * For example, |
||
| 290 | * |
||
| 291 | * ```php |
||
| 292 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
||
| 293 | * ``` |
||
| 294 | * |
||
| 295 | * The method will properly escape the table and column names. |
||
| 296 | * |
||
| 297 | * @param string $table the table where the data will be deleted from. |
||
| 298 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
||
| 299 | * refer to [[Query::where()]] on how to specify condition. |
||
| 300 | * @param array $params the binding parameters that will be modified by this method |
||
| 301 | * so that they can be bound to the DB command later. |
||
| 302 | * @return string the DELETE SQL |
||
| 303 | */ |
||
| 304 | 142 | public function delete($table, $condition, &$params) |
|
| 311 | |||
| 312 | /** |
||
| 313 | * Builds a SQL statement for creating a new DB table. |
||
| 314 | * |
||
| 315 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
||
| 316 | * where name stands for a column name which will be properly quoted by the method, and definition |
||
| 317 | * stands for the column type which can contain an abstract DB type. |
||
| 318 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
||
| 319 | * |
||
| 320 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
||
| 321 | * inserted into the generated SQL. |
||
| 322 | * |
||
| 323 | * For example, |
||
| 324 | * |
||
| 325 | * ```php |
||
| 326 | * $sql = $queryBuilder->createTable('user', [ |
||
| 327 | * 'id' => 'pk', |
||
| 328 | * 'name' => 'string', |
||
| 329 | * 'age' => 'integer', |
||
| 330 | * ]); |
||
| 331 | * ``` |
||
| 332 | * |
||
| 333 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
||
| 334 | * @param array $columns the columns (name => definition) in the new table. |
||
| 335 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
||
| 336 | * @return string the SQL statement for creating a new DB table. |
||
| 337 | */ |
||
| 338 | 57 | public function createTable($table, $columns, $options = null) |
|
| 352 | |||
| 353 | /** |
||
| 354 | * Builds a SQL statement for renaming a DB table. |
||
| 355 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
||
| 356 | * @param string $newName the new table name. The name will be properly quoted by the method. |
||
| 357 | * @return string the SQL statement for renaming a DB table. |
||
| 358 | */ |
||
| 359 | 1 | public function renameTable($oldName, $newName) |
|
| 363 | |||
| 364 | /** |
||
| 365 | * Builds a SQL statement for dropping a DB table. |
||
| 366 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
||
| 367 | * @return string the SQL statement for dropping a DB table. |
||
| 368 | */ |
||
| 369 | 11 | public function dropTable($table) |
|
| 373 | |||
| 374 | /** |
||
| 375 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
||
| 376 | * @param string $name the name of the primary key constraint. |
||
| 377 | * @param string $table the table that the primary key constraint will be added to. |
||
| 378 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
||
| 379 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
||
| 380 | */ |
||
| 381 | 3 | public function addPrimaryKey($name, $table, $columns) |
|
| 395 | |||
| 396 | /** |
||
| 397 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
||
| 398 | * @param string $name the name of the primary key constraint to be removed. |
||
| 399 | * @param string $table the table that the primary key constraint will be removed from. |
||
| 400 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
||
| 401 | */ |
||
| 402 | 1 | public function dropPrimaryKey($name, $table) |
|
| 407 | |||
| 408 | /** |
||
| 409 | * Builds a SQL statement for truncating a DB table. |
||
| 410 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
||
| 411 | * @return string the SQL statement for truncating a DB table. |
||
| 412 | */ |
||
| 413 | 5 | public function truncateTable($table) |
|
| 417 | |||
| 418 | /** |
||
| 419 | * Builds a SQL statement for adding a new DB column. |
||
| 420 | * @param string $table the table that the new column will be added to. The table name will be properly quoted by the method. |
||
| 421 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
||
| 422 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
||
| 423 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
||
| 424 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
||
| 425 | * @return string the SQL statement for adding a new column. |
||
| 426 | */ |
||
| 427 | 4 | public function addColumn($table, $column, $type) |
|
| 433 | |||
| 434 | /** |
||
| 435 | * Builds a SQL statement for dropping a DB column. |
||
| 436 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
||
| 437 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
||
| 438 | * @return string the SQL statement for dropping a DB column. |
||
| 439 | */ |
||
| 440 | public function dropColumn($table, $column) |
||
| 445 | |||
| 446 | /** |
||
| 447 | * Builds a SQL statement for renaming a column. |
||
| 448 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
||
| 449 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
||
| 450 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
||
| 451 | * @return string the SQL statement for renaming a DB column. |
||
| 452 | */ |
||
| 453 | public function renameColumn($table, $oldName, $newName) |
||
| 459 | |||
| 460 | /** |
||
| 461 | * Builds a SQL statement for changing the definition of a column. |
||
| 462 | * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
||
| 463 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
||
| 464 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
||
| 465 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
||
| 466 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
||
| 467 | * will become 'varchar(255) not null'. |
||
| 468 | * @return string the SQL statement for changing the definition of a column. |
||
| 469 | */ |
||
| 470 | 1 | public function alterColumn($table, $column, $type) |
|
| 477 | |||
| 478 | /** |
||
| 479 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
||
| 480 | * The method will properly quote the table and column names. |
||
| 481 | * @param string $name the name of the foreign key constraint. |
||
| 482 | * @param string $table the table that the foreign key constraint will be added to. |
||
| 483 | * @param string|array $columns the name of the column to that the constraint will be added on. |
||
| 484 | * If there are multiple columns, separate them with commas or use an array to represent them. |
||
| 485 | * @param string $refTable the table that the foreign key references to. |
||
| 486 | * @param string|array $refColumns the name of the column that the foreign key references to. |
||
| 487 | * If there are multiple columns, separate them with commas or use an array to represent them. |
||
| 488 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 489 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 490 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
||
| 491 | */ |
||
| 492 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
||
| 508 | |||
| 509 | /** |
||
| 510 | * Builds a SQL statement for dropping a foreign key constraint. |
||
| 511 | * @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
||
| 512 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
||
| 513 | * @return string the SQL statement for dropping a foreign key constraint. |
||
| 514 | */ |
||
| 515 | public function dropForeignKey($name, $table) |
||
| 520 | |||
| 521 | /** |
||
| 522 | * Builds a SQL statement for creating a new index. |
||
| 523 | * @param string $name the name of the index. The name will be properly quoted by the method. |
||
| 524 | * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method. |
||
| 525 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
||
| 526 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
||
| 527 | * by the method, unless a parenthesis is found in the name. |
||
| 528 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
||
| 529 | * @return string the SQL statement for creating a new index. |
||
| 530 | */ |
||
| 531 | 1 | public function createIndex($name, $table, $columns, $unique = false) |
|
| 538 | |||
| 539 | /** |
||
| 540 | * Builds a SQL statement for dropping an index. |
||
| 541 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
||
| 542 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
||
| 543 | * @return string the SQL statement for dropping an index. |
||
| 544 | */ |
||
| 545 | public function dropIndex($name, $table) |
||
| 549 | |||
| 550 | /** |
||
| 551 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
||
| 552 | * The sequence will be reset such that the primary key of the next new row inserted |
||
| 553 | * will have the specified value or 1. |
||
| 554 | * @param string $table the name of the table whose primary key sequence will be reset |
||
| 555 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
||
| 556 | * the next new row's primary key will have a value 1. |
||
| 557 | * @return string the SQL statement for resetting sequence |
||
| 558 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 559 | */ |
||
| 560 | public function resetSequence($table, $value = null) |
||
| 564 | |||
| 565 | /** |
||
| 566 | * Builds a SQL statement for enabling or disabling integrity check. |
||
| 567 | * @param bool $check whether to turn on or off the integrity check. |
||
| 568 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
||
| 569 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
||
| 570 | * @return string the SQL statement for checking integrity |
||
| 571 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 572 | */ |
||
| 573 | public function checkIntegrity($check = true, $schema = '', $table = '') |
||
| 577 | |||
| 578 | /** |
||
| 579 | * Builds a SQL command for adding comment to column |
||
| 580 | * |
||
| 581 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 582 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 583 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 584 | * @return string the SQL statement for adding comment on column |
||
| 585 | * @since 2.0.8 |
||
| 586 | */ |
||
| 587 | 1 | public function addCommentOnColumn($table, $column, $comment) |
|
| 592 | |||
| 593 | /** |
||
| 594 | * Builds a SQL command for adding comment to table |
||
| 595 | * |
||
| 596 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 597 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 598 | * @return string the SQL statement for adding comment on table |
||
| 599 | * @since 2.0.8 |
||
| 600 | */ |
||
| 601 | 1 | public function addCommentOnTable($table, $comment) |
|
| 605 | |||
| 606 | /** |
||
| 607 | * Builds a SQL command for adding comment to column |
||
| 608 | * |
||
| 609 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 610 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 611 | * @return string the SQL statement for adding comment on column |
||
| 612 | * @since 2.0.8 |
||
| 613 | */ |
||
| 614 | 1 | public function dropCommentFromColumn($table, $column) |
|
| 618 | |||
| 619 | /** |
||
| 620 | * Builds a SQL command for adding comment to table |
||
| 621 | * |
||
| 622 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 623 | * @return string the SQL statement for adding comment on column |
||
| 624 | * @since 2.0.8 |
||
| 625 | */ |
||
| 626 | 1 | public function dropCommentFromTable($table) |
|
| 630 | |||
| 631 | /** |
||
| 632 | * Converts an abstract column type into a physical column type. |
||
| 633 | * The conversion is done using the type map specified in [[typeMap]]. |
||
| 634 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
||
| 635 | * physical types): |
||
| 636 | * |
||
| 637 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 638 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 639 | * - `unsignedpk`: an unsigned auto-incremental primary key type, will be converted into "int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 640 | * - `char`: char type, will be converted into "char(1)" |
||
| 641 | * - `string`: string type, will be converted into "varchar(255)" |
||
| 642 | * - `text`: a long string type, will be converted into "text" |
||
| 643 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
||
| 644 | * - `integer`: integer type, will be converted into "int(11)" |
||
| 645 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
||
| 646 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
||
| 647 | * - `float``: float number type, will be converted into "float" |
||
| 648 | * - `decimal`: decimal number type, will be converted into "decimal" |
||
| 649 | * - `datetime`: datetime type, will be converted into "datetime" |
||
| 650 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
||
| 651 | * - `time`: time type, will be converted into "time" |
||
| 652 | * - `date`: date type, will be converted into "date" |
||
| 653 | * - `money`: money type, will be converted into "decimal(19,4)" |
||
| 654 | * - `binary`: binary data type, will be converted into "blob" |
||
| 655 | * |
||
| 656 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
||
| 657 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
||
| 658 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
||
| 659 | * |
||
| 660 | * For some of the abstract types you can also specify a length or precision constraint |
||
| 661 | * by appending it in round brackets directly to the type. |
||
| 662 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
||
| 663 | * If the underlying DBMS does not support these kind of constraints for a type it will |
||
| 664 | * be ignored. |
||
| 665 | * |
||
| 666 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
||
| 667 | * @param string|ColumnSchemaBuilder $type abstract column type |
||
| 668 | * @return string physical column type. |
||
| 669 | */ |
||
| 670 | 61 | public function getColumnType($type) |
|
| 690 | |||
| 691 | /** |
||
| 692 | * @param array $columns |
||
| 693 | * @param array $params the binding parameters to be populated |
||
| 694 | * @param bool $distinct |
||
| 695 | * @param string $selectOption |
||
| 696 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 697 | */ |
||
| 698 | 756 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 736 | |||
| 737 | /** |
||
| 738 | * @param array $tables |
||
| 739 | * @param array $params the binding parameters to be populated |
||
| 740 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 741 | */ |
||
| 742 | 756 | public function buildFrom($tables, &$params) |
|
| 752 | |||
| 753 | /** |
||
| 754 | * @param array $joins |
||
| 755 | * @param array $params the binding parameters to be populated |
||
| 756 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 757 | * @throws Exception if the $joins parameter is not in proper format |
||
| 758 | */ |
||
| 759 | 756 | public function buildJoin($joins, &$params) |
|
| 784 | |||
| 785 | /** |
||
| 786 | * Quotes table names passed |
||
| 787 | * |
||
| 788 | * @param array $tables |
||
| 789 | * @param array $params |
||
| 790 | * @return array |
||
| 791 | */ |
||
| 792 | 507 | private function quoteTableNames($tables, &$params) |
|
| 813 | |||
| 814 | /** |
||
| 815 | * @param string|array $condition |
||
| 816 | * @param array $params the binding parameters to be populated |
||
| 817 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 818 | */ |
||
| 819 | 774 | public function buildWhere($condition, &$params) |
|
| 825 | |||
| 826 | /** |
||
| 827 | * @param array $columns |
||
| 828 | * @return string the GROUP BY clause |
||
| 829 | */ |
||
| 830 | 756 | public function buildGroupBy($columns) |
|
| 844 | |||
| 845 | /** |
||
| 846 | * @param string|array $condition |
||
| 847 | * @param array $params the binding parameters to be populated |
||
| 848 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 849 | */ |
||
| 850 | 756 | public function buildHaving($condition, &$params) |
|
| 856 | |||
| 857 | /** |
||
| 858 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 859 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 860 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 861 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 862 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 863 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 864 | */ |
||
| 865 | 756 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset) |
|
| 877 | |||
| 878 | /** |
||
| 879 | * @param array $columns |
||
| 880 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 881 | */ |
||
| 882 | 756 | public function buildOrderBy($columns) |
|
| 898 | |||
| 899 | /** |
||
| 900 | * @param int $limit |
||
| 901 | * @param int $offset |
||
| 902 | * @return string the LIMIT and OFFSET clauses |
||
| 903 | */ |
||
| 904 | 223 | public function buildLimit($limit, $offset) |
|
| 916 | |||
| 917 | /** |
||
| 918 | * Checks to see if the given limit is effective. |
||
| 919 | * @param mixed $limit the given limit |
||
| 920 | * @return bool whether the limit is effective |
||
| 921 | */ |
||
| 922 | 756 | protected function hasLimit($limit) |
|
| 926 | |||
| 927 | /** |
||
| 928 | * Checks to see if the given offset is effective. |
||
| 929 | * @param mixed $offset the given offset |
||
| 930 | * @return bool whether the offset is effective |
||
| 931 | */ |
||
| 932 | 756 | protected function hasOffset($offset) |
|
| 937 | |||
| 938 | /** |
||
| 939 | * @param array $unions |
||
| 940 | * @param array $params the binding parameters to be populated |
||
| 941 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 942 | */ |
||
| 943 | 529 | public function buildUnion($unions, &$params) |
|
| 962 | |||
| 963 | /** |
||
| 964 | * Processes columns and properly quotes them if necessary. |
||
| 965 | * It will join all columns into a string with comma as separators. |
||
| 966 | * @param string|array $columns the columns to be processed |
||
| 967 | * @return string the processing result |
||
| 968 | */ |
||
| 969 | 3 | public function buildColumns($columns) |
|
| 988 | |||
| 989 | /** |
||
| 990 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 991 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 992 | * on how to specify a condition. |
||
| 993 | * @param array $params the binding parameters to be populated |
||
| 994 | * @return string the generated SQL expression |
||
| 995 | */ |
||
| 996 | 774 | public function buildCondition($condition, &$params) |
|
| 1022 | |||
| 1023 | /** |
||
| 1024 | * Creates a condition based on column-value pairs. |
||
| 1025 | * @param array $condition the condition specification. |
||
| 1026 | * @param array $params the binding parameters to be populated |
||
| 1027 | * @return string the generated SQL expression |
||
| 1028 | */ |
||
| 1029 | 389 | public function buildHashCondition($condition, &$params) |
|
| 1056 | |||
| 1057 | /** |
||
| 1058 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1059 | * @param string $operator the operator to use for connecting the given operands |
||
| 1060 | * @param array $operands the SQL expressions to connect. |
||
| 1061 | * @param array $params the binding parameters to be populated |
||
| 1062 | * @return string the generated SQL expression |
||
| 1063 | */ |
||
| 1064 | 98 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1087 | |||
| 1088 | /** |
||
| 1089 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1090 | * @param string $operator the operator to use for connecting the given operands |
||
| 1091 | * @param array $operands the SQL expressions to connect. |
||
| 1092 | * @param array $params the binding parameters to be populated |
||
| 1093 | * @return string the generated SQL expression |
||
| 1094 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1095 | */ |
||
| 1096 | 3 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1112 | |||
| 1113 | /** |
||
| 1114 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1115 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1116 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1117 | * describe the interval that column value should be in. |
||
| 1118 | * @param array $params the binding parameters to be populated |
||
| 1119 | * @return string the generated SQL expression |
||
| 1120 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1121 | */ |
||
| 1122 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1154 | |||
| 1155 | /** |
||
| 1156 | * Creates an SQL expressions with the `IN` operator. |
||
| 1157 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1158 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1159 | * a composite IN condition will be generated. |
||
| 1160 | * The second operand is an array of values that column value should be among. |
||
| 1161 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1162 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1163 | * @param array $params the binding parameters to be populated |
||
| 1164 | * @return string the generated SQL expression |
||
| 1165 | * @throws Exception if wrong number of operands have been given. |
||
| 1166 | */ |
||
| 1167 | 201 | public function buildInCondition($operator, $operands, &$params) |
|
| 1228 | |||
| 1229 | /** |
||
| 1230 | * Builds SQL for IN condition |
||
| 1231 | * |
||
| 1232 | * @param string $operator |
||
| 1233 | * @param array $columns |
||
| 1234 | * @param Query $values |
||
| 1235 | * @param array $params |
||
| 1236 | * @return string SQL |
||
| 1237 | */ |
||
| 1238 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1255 | |||
| 1256 | /** |
||
| 1257 | * Builds SQL for IN condition |
||
| 1258 | * |
||
| 1259 | * @param string $operator |
||
| 1260 | * @param array|\Traversable $columns |
||
| 1261 | * @param array $values |
||
| 1262 | * @param array $params |
||
| 1263 | * @return string SQL |
||
| 1264 | */ |
||
| 1265 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1293 | |||
| 1294 | /** |
||
| 1295 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1296 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1297 | * @param array $operands an array of two or three operands |
||
| 1298 | * |
||
| 1299 | * - The first operand is the column name. |
||
| 1300 | * - The second operand is a single value or an array of values that column value |
||
| 1301 | * should be compared with. If it is an empty array the generated expression will |
||
| 1302 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1303 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1304 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1305 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1306 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1307 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1308 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1309 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1310 | * @param array $params the binding parameters to be populated |
||
| 1311 | * @return string the generated SQL expression |
||
| 1312 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1313 | */ |
||
| 1314 | 72 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1360 | |||
| 1361 | /** |
||
| 1362 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1363 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1364 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1365 | * @param array $params the binding parameters to be populated |
||
| 1366 | * @return string the generated SQL expression |
||
| 1367 | * @throws InvalidParamException if the operand is not a [[Query]] object. |
||
| 1368 | */ |
||
| 1369 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1378 | |||
| 1379 | /** |
||
| 1380 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1381 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1382 | * @param array $operands contains two column names. |
||
| 1383 | * @param array $params the binding parameters to be populated |
||
| 1384 | * @return string the generated SQL expression |
||
| 1385 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1386 | */ |
||
| 1387 | 30 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1415 | |||
| 1416 | /** |
||
| 1417 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1418 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1419 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1420 | * @since 2.0.8 |
||
| 1421 | */ |
||
| 1422 | 51 | public function selectExists($rawSql) |
|
| 1426 | } |
||
| 1427 |
