yiisoft /
yii2
Complex classes like QueryBuilder often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use QueryBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class QueryBuilder extends \yii\base\Object |
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| 27 | { |
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| 28 | /** |
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| 29 | * The prefix for automatically generated query binding parameters. |
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| 30 | */ |
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| 31 | const PARAM_PREFIX = ':qp'; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var Connection the database connection. |
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| 35 | */ |
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| 36 | public $db; |
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| 37 | /** |
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| 38 | * @var string the separator between different fragments of a SQL statement. |
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| 39 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 40 | */ |
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| 41 | public $separator = ' '; |
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| 42 | /** |
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| 43 | * @var array the abstract column types mapped to physical column types. |
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| 44 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 45 | * Child classes should override this property to declare supported type mappings. |
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| 46 | */ |
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| 47 | public $typeMap = []; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var array map of query condition to builder methods. |
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| 51 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 52 | */ |
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| 53 | protected $conditionBuilders = [ |
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| 54 | 'NOT' => 'buildNotCondition', |
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| 55 | 'AND' => 'buildAndCondition', |
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| 56 | 'OR' => 'buildAndCondition', |
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| 57 | 'BETWEEN' => 'buildBetweenCondition', |
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| 58 | 'NOT BETWEEN' => 'buildBetweenCondition', |
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| 59 | 'IN' => 'buildInCondition', |
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| 60 | 'NOT IN' => 'buildInCondition', |
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| 61 | 'LIKE' => 'buildLikeCondition', |
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| 62 | 'NOT LIKE' => 'buildLikeCondition', |
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| 63 | 'OR LIKE' => 'buildLikeCondition', |
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| 64 | 'OR NOT LIKE' => 'buildLikeCondition', |
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| 65 | 'EXISTS' => 'buildExistsCondition', |
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| 66 | 'NOT EXISTS' => 'buildExistsCondition', |
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| 67 | ]; |
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| 68 | /** |
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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 $config name-value pairs that will be used to initialize the object properties |
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| 90 | */ |
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| 91 | 991 | public function __construct($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 | 580 | public function build($query, $params = []) |
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| 131 | |||
| 132 | /** |
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| 133 | * Creates an INSERT SQL statement. |
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| 134 | * For example, |
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| 135 | * |
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| 136 | * ```php |
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| 137 | * $sql = $queryBuilder->insert('user', [ |
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| 138 | * 'name' => 'Sam', |
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| 139 | * 'age' => 30, |
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| 140 | * ], $params); |
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| 141 | * ``` |
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| 142 | * |
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| 143 | * The method will properly escape the table and column names. |
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| 144 | * |
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| 145 | * @param string $table the table that new rows will be inserted into. |
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| 146 | * @param array|\yii\db\Query $columns the column data (name => value) to be inserted into the table or instance |
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| 147 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 148 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 149 | * @param array $params the binding parameters that will be generated by this method. |
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| 150 | * They should be bound to the DB command later. |
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| 151 | * @return string the INSERT SQL |
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| 152 | */ |
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| 153 | 191 | public function insert($table, $columns, &$params) |
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| 189 | |||
| 190 | /** |
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| 191 | * Prepare select-subquery and field names for INSERT INTO ... SELECT SQL statement. |
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| 192 | * |
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| 193 | * @param \yii\db\Query $columns Object, which represents select query. |
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| 194 | * @param \yii\db\Schema $schema Schema object to quote column name. |
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| 195 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 196 | * be included in the result with the additional parameters generated during the query building process. |
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| 197 | * @return array |
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| 198 | * @throws InvalidArgumentException if query's select does not contain named parameters only. |
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| 199 | * @since 2.0.11 |
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| 200 | */ |
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| 201 | 15 | protected function prepareInsertSelectSubQuery($columns, $schema, $params = []) |
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| 222 | |||
| 223 | /** |
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| 224 | * Generates a batch INSERT SQL statement. |
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| 225 | * For example, |
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| 226 | * |
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| 227 | * ```php |
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| 228 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 229 | * ['Tom', 30], |
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| 230 | * ['Jane', 20], |
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| 231 | * ['Linda', 25], |
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| 232 | * ]); |
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| 233 | * ``` |
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| 234 | * |
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| 235 | * Note that the values in each row must match the corresponding column names. |
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| 236 | * |
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| 237 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 238 | * |
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| 239 | * @param string $table the table that new rows will be inserted into. |
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| 240 | * @param array $columns the column names |
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| 241 | * @param array $rows the rows to be batch inserted into the table |
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| 242 | * @return string the batch INSERT SQL statement |
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| 243 | */ |
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| 244 | 20 | public function batchInsert($table, $columns, $rows) |
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| 286 | |||
| 287 | /** |
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| 288 | * Creates an UPDATE SQL statement. |
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| 289 | * For example, |
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| 290 | * |
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| 291 | * ```php |
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| 292 | * $params = []; |
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| 293 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 294 | * ``` |
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| 295 | * |
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| 296 | * The method will properly escape the table and column names. |
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| 297 | * |
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| 298 | * @param string $table the table to be updated. |
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| 299 | * @param array $columns the column data (name => value) to be updated. |
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| 300 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 301 | * refer to [[Query::where()]] on how to specify condition. |
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| 302 | * @param array $params the binding parameters that will be modified by this method |
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| 303 | * so that they can be bound to the DB command later. |
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| 304 | * @return string the UPDATE SQL |
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| 305 | */ |
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| 306 | 79 | public function update($table, $columns, $condition, &$params) |
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| 333 | |||
| 334 | /** |
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| 335 | * Creates a DELETE SQL statement. |
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| 336 | * For example, |
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| 337 | * |
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| 338 | * ```php |
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| 339 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 340 | * ``` |
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| 341 | * |
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| 342 | * The method will properly escape the table and column names. |
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| 343 | * |
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| 344 | * @param string $table the table where the data will be deleted from. |
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| 345 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 346 | * refer to [[Query::where()]] on how to specify condition. |
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| 347 | * @param array $params the binding parameters that will be modified by this method |
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| 348 | * so that they can be bound to the DB command later. |
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| 349 | * @return string the DELETE SQL |
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| 350 | */ |
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| 351 | 194 | public function delete($table, $condition, &$params) |
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| 358 | |||
| 359 | /** |
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| 360 | * Builds a SQL statement for creating a new DB table. |
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| 361 | * |
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| 362 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 363 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 364 | * stands for the column type which can contain an abstract DB type. |
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| 365 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 366 | * |
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| 367 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 368 | * inserted into the generated SQL. |
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| 369 | * |
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| 370 | * For example, |
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| 371 | * |
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| 372 | * ```php |
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| 373 | * $sql = $queryBuilder->createTable('user', [ |
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| 374 | * 'id' => 'pk', |
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| 375 | * 'name' => 'string', |
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| 376 | * 'age' => 'integer', |
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| 377 | * ]); |
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| 378 | * ``` |
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| 379 | * |
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| 380 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 381 | * @param array $columns the columns (name => definition) in the new table. |
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| 382 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 383 | * @return string the SQL statement for creating a new DB table. |
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| 384 | */ |
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| 385 | 86 | public function createTable($table, $columns, $options = null) |
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| 399 | |||
| 400 | /** |
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| 401 | * Builds a SQL statement for renaming a DB table. |
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| 402 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 403 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 404 | * @return string the SQL statement for renaming a DB table. |
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| 405 | */ |
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| 406 | 1 | public function renameTable($oldName, $newName) |
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| 410 | |||
| 411 | /** |
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| 412 | * Builds a SQL statement for dropping a DB table. |
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| 413 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 414 | * @return string the SQL statement for dropping a DB table. |
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| 415 | */ |
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| 416 | 18 | public function dropTable($table) |
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| 420 | |||
| 421 | /** |
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| 422 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 423 | * @param string $name the name of the primary key constraint. |
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| 424 | * @param string $table the table that the primary key constraint will be added to. |
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| 425 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 426 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 427 | */ |
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| 428 | 2 | public function addPrimaryKey($name, $table, $columns) |
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| 442 | |||
| 443 | /** |
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| 444 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 445 | * @param string $name the name of the primary key constraint to be removed. |
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| 446 | * @param string $table the table that the primary key constraint will be removed from. |
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| 447 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 448 | */ |
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| 449 | 1 | public function dropPrimaryKey($name, $table) |
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| 454 | |||
| 455 | /** |
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| 456 | * Builds a SQL statement for truncating a DB table. |
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| 457 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 458 | * @return string the SQL statement for truncating a DB table. |
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| 459 | */ |
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| 460 | 9 | public function truncateTable($table) |
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| 464 | |||
| 465 | /** |
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| 466 | * Builds a SQL statement for adding a new DB column. |
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| 467 | * @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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| 468 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 469 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 470 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 471 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 472 | * @return string the SQL statement for adding a new column. |
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| 473 | */ |
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| 474 | 4 | public function addColumn($table, $column, $type) |
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| 480 | |||
| 481 | /** |
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| 482 | * Builds a SQL statement for dropping a DB column. |
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| 483 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 484 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 485 | * @return string the SQL statement for dropping a DB column. |
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| 486 | */ |
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| 487 | public function dropColumn($table, $column) |
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| 492 | |||
| 493 | /** |
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| 494 | * Builds a SQL statement for renaming a column. |
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| 495 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 496 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 497 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 498 | * @return string the SQL statement for renaming a DB column. |
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| 499 | */ |
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| 500 | public function renameColumn($table, $oldName, $newName) |
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| 506 | |||
| 507 | /** |
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| 508 | * Builds a SQL statement for changing the definition of a column. |
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| 509 | * @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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| 510 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 511 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 512 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 513 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 514 | * will become 'varchar(255) not null'. |
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| 515 | * @return string the SQL statement for changing the definition of a column. |
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| 516 | */ |
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| 517 | 1 | public function alterColumn($table, $column, $type) |
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| 524 | |||
| 525 | /** |
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| 526 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 527 | * The method will properly quote the table and column names. |
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| 528 | * @param string $name the name of the foreign key constraint. |
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| 529 | * @param string $table the table that the foreign key constraint will be added to. |
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| 530 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 531 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 532 | * @param string $refTable the table that the foreign key references to. |
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| 533 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 534 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 535 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 536 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 537 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 538 | */ |
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| 539 | 2 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 555 | |||
| 556 | /** |
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| 557 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 558 | * @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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| 559 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 560 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 561 | */ |
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| 562 | 1 | public function dropForeignKey($name, $table) |
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| 567 | |||
| 568 | /** |
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| 569 | * Builds a SQL statement for creating a new index. |
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| 570 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 571 | * @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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| 572 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 573 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 574 | * by the method, unless a parenthesis is found in the name. |
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| 575 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
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| 576 | * @return string the SQL statement for creating a new index. |
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| 577 | */ |
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| 578 | 1 | public function createIndex($name, $table, $columns, $unique = false) |
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| 585 | |||
| 586 | /** |
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| 587 | * Builds a SQL statement for dropping an index. |
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| 588 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 589 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 590 | * @return string the SQL statement for dropping an index. |
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| 591 | */ |
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| 592 | public function dropIndex($name, $table) |
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| 596 | |||
| 597 | /** |
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| 598 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 599 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 600 | * will have the specified value or 1. |
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| 601 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 602 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 603 | * the next new row's primary key will have a value 1. |
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| 604 | * @return string the SQL statement for resetting sequence |
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| 605 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 606 | */ |
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| 607 | public function resetSequence($table, $value = null) |
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| 611 | |||
| 612 | /** |
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| 613 | * Builds a SQL statement for enabling or disabling integrity check. |
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| 614 | * @param bool $check whether to turn on or off the integrity check. |
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| 615 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
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| 616 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
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| 617 | * @return string the SQL statement for checking integrity |
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| 618 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 619 | */ |
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| 620 | public function checkIntegrity($check = true, $schema = '', $table = '') |
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| 624 | |||
| 625 | /** |
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| 626 | * Builds a SQL command for adding comment to column |
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| 627 | * |
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| 628 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 629 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 630 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 631 | * @return string the SQL statement for adding comment on column |
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| 632 | * @since 2.0.8 |
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| 633 | */ |
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| 634 | 2 | public function addCommentOnColumn($table, $column, $comment) |
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| 639 | |||
| 640 | /** |
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| 641 | * Builds a SQL command for adding comment to table |
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| 642 | * |
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| 643 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 644 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 645 | * @return string the SQL statement for adding comment on table |
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| 646 | * @since 2.0.8 |
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| 647 | */ |
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| 648 | 1 | public function addCommentOnTable($table, $comment) |
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| 652 | |||
| 653 | /** |
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| 654 | * Builds a SQL command for adding comment to column |
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| 655 | * |
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| 656 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 657 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 658 | * @return string the SQL statement for adding comment on column |
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| 659 | * @since 2.0.8 |
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| 660 | */ |
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| 661 | 2 | public function dropCommentFromColumn($table, $column) |
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| 665 | |||
| 666 | /** |
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| 667 | * Builds a SQL command for adding comment to table |
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| 668 | * |
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| 669 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 670 | * @return string the SQL statement for adding comment on column |
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| 671 | * @since 2.0.8 |
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| 672 | */ |
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| 673 | 1 | public function dropCommentFromTable($table) |
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| 677 | |||
| 678 | /** |
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| 679 | * Converts an abstract column type into a physical column type. |
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| 680 | * The conversion is done using the type map specified in [[typeMap]]. |
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| 681 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
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| 682 | * physical types): |
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| 683 | * |
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| 684 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 685 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 686 | * - `unsignedpk`: an unsigned auto-incremental primary key type, will be converted into "int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 687 | * - `char`: char type, will be converted into "char(1)" |
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| 688 | * - `string`: string type, will be converted into "varchar(255)" |
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| 689 | * - `text`: a long string type, will be converted into "text" |
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| 690 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
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| 691 | * - `integer`: integer type, will be converted into "int(11)" |
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| 692 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
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| 693 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
||
| 694 | * - `float``: float number type, will be converted into "float" |
||
| 695 | * - `decimal`: decimal number type, will be converted into "decimal" |
||
| 696 | * - `datetime`: datetime type, will be converted into "datetime" |
||
| 697 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
||
| 698 | * - `time`: time type, will be converted into "time" |
||
| 699 | * - `date`: date type, will be converted into "date" |
||
| 700 | * - `money`: money type, will be converted into "decimal(19,4)" |
||
| 701 | * - `binary`: binary data type, will be converted into "blob" |
||
| 702 | * |
||
| 703 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
||
| 704 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
||
| 705 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
||
| 706 | * |
||
| 707 | * For some of the abstract types you can also specify a length or precision constraint |
||
| 708 | * by appending it in round brackets directly to the type. |
||
| 709 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
||
| 710 | * If the underlying DBMS does not support these kind of constraints for a type it will |
||
| 711 | * be ignored. |
||
| 712 | * |
||
| 713 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
||
| 714 | * @param string|ColumnSchemaBuilder $type abstract column type |
||
| 715 | * @return string physical column type. |
||
| 716 | */ |
||
| 717 | 90 | public function getColumnType($type) |
|
| 737 | |||
| 738 | /** |
||
| 739 | * @param array $columns |
||
| 740 | * @param array $params the binding parameters to be populated |
||
| 741 | * @param bool $distinct |
||
| 742 | * @param string $selectOption |
||
| 743 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 744 | */ |
||
| 745 | 851 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 783 | |||
| 784 | /** |
||
| 785 | * @param array $tables |
||
| 786 | * @param array $params the binding parameters to be populated |
||
| 787 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 788 | */ |
||
| 789 | 851 | public function buildFrom($tables, &$params) |
|
| 799 | |||
| 800 | /** |
||
| 801 | * @param array $joins |
||
| 802 | * @param array $params the binding parameters to be populated |
||
| 803 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 804 | * @throws Exception if the $joins parameter is not in proper format |
||
| 805 | */ |
||
| 806 | 851 | public function buildJoin($joins, &$params) |
|
| 831 | |||
| 832 | /** |
||
| 833 | * Quotes table names passed |
||
| 834 | * |
||
| 835 | * @param array $tables |
||
| 836 | * @param array $params |
||
| 837 | * @return array |
||
| 838 | */ |
||
| 839 | 602 | private function quoteTableNames($tables, &$params) |
|
| 860 | |||
| 861 | /** |
||
| 862 | * @param string|array $condition |
||
| 863 | * @param array $params the binding parameters to be populated |
||
| 864 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 865 | */ |
||
| 866 | 873 | public function buildWhere($condition, &$params) |
|
| 872 | |||
| 873 | /** |
||
| 874 | * @param array $columns |
||
| 875 | * @param array $params the binding parameters to be populated |
||
| 876 | * @return string the GROUP BY clause |
||
| 877 | */ |
||
| 878 | 851 | public function buildGroupBy($columns, &$params) |
|
| 893 | |||
| 894 | /** |
||
| 895 | * @param string|array $condition |
||
| 896 | * @param array $params the binding parameters to be populated |
||
| 897 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 898 | */ |
||
| 899 | 851 | public function buildHaving($condition, &$params) |
|
| 905 | |||
| 906 | /** |
||
| 907 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 908 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 909 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 910 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 911 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 912 | * @param array $params the binding parameters to be populated |
||
| 913 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 914 | */ |
||
| 915 | 851 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset, &$params) |
|
| 927 | |||
| 928 | /** |
||
| 929 | * @param array $columns |
||
| 930 | * @param array $params the binding parameters to be populated |
||
| 931 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 932 | */ |
||
| 933 | 851 | public function buildOrderBy($columns, &$params) |
|
| 950 | |||
| 951 | /** |
||
| 952 | * @param int $limit |
||
| 953 | * @param int $offset |
||
| 954 | * @return string the LIMIT and OFFSET clauses |
||
| 955 | */ |
||
| 956 | 281 | public function buildLimit($limit, $offset) |
|
| 968 | |||
| 969 | /** |
||
| 970 | * Checks to see if the given limit is effective. |
||
| 971 | * @param mixed $limit the given limit |
||
| 972 | * @return bool whether the limit is effective |
||
| 973 | */ |
||
| 974 | 552 | protected function hasLimit($limit) |
|
| 978 | |||
| 979 | /** |
||
| 980 | * Checks to see if the given offset is effective. |
||
| 981 | * @param mixed $offset the given offset |
||
| 982 | * @return bool whether the offset is effective |
||
| 983 | */ |
||
| 984 | 552 | protected function hasOffset($offset) |
|
| 988 | |||
| 989 | /** |
||
| 990 | * @param array $unions |
||
| 991 | * @param array $params the binding parameters to be populated |
||
| 992 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 993 | */ |
||
| 994 | 580 | public function buildUnion($unions, &$params) |
|
| 1013 | |||
| 1014 | /** |
||
| 1015 | * Processes columns and properly quotes them if necessary. |
||
| 1016 | * It will join all columns into a string with comma as separators. |
||
| 1017 | * @param string|array $columns the columns to be processed |
||
| 1018 | * @return string the processing result |
||
| 1019 | */ |
||
| 1020 | 11 | public function buildColumns($columns) |
|
| 1039 | |||
| 1040 | /** |
||
| 1041 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 1042 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
||
| 1043 | * on how to specify a condition. |
||
| 1044 | * @param array $params the binding parameters to be populated |
||
| 1045 | * @return string the generated SQL expression |
||
| 1046 | */ |
||
| 1047 | 873 | public function buildCondition($condition, &$params) |
|
| 1073 | |||
| 1074 | /** |
||
| 1075 | * Creates a condition based on column-value pairs. |
||
| 1076 | * @param array $condition the condition specification. |
||
| 1077 | * @param array $params the binding parameters to be populated |
||
| 1078 | * @return string the generated SQL expression |
||
| 1079 | */ |
||
| 1080 | 465 | public function buildHashCondition($condition, &$params) |
|
| 1107 | |||
| 1108 | /** |
||
| 1109 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1110 | * @param string $operator the operator to use for connecting the given operands |
||
| 1111 | * @param array $operands the SQL expressions to connect. |
||
| 1112 | * @param array $params the binding parameters to be populated |
||
| 1113 | * @return string the generated SQL expression |
||
| 1114 | */ |
||
| 1115 | 170 | public function buildAndCondition($operator, $operands, &$params) |
|
| 1138 | |||
| 1139 | /** |
||
| 1140 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1141 | * @param string $operator the operator to use for connecting the given operands |
||
| 1142 | * @param array $operands the SQL expressions to connect. |
||
| 1143 | * @param array $params the binding parameters to be populated |
||
| 1144 | * @return string the generated SQL expression |
||
| 1145 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1146 | */ |
||
| 1147 | 3 | public function buildNotCondition($operator, $operands, &$params) |
|
| 1163 | |||
| 1164 | /** |
||
| 1165 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1166 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1167 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1168 | * describe the interval that column value should be in. |
||
| 1169 | * @param array $params the binding parameters to be populated |
||
| 1170 | * @return string the generated SQL expression |
||
| 1171 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1172 | */ |
||
| 1173 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
|
| 1205 | |||
| 1206 | /** |
||
| 1207 | * Creates an SQL expressions with the `IN` operator. |
||
| 1208 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1209 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1210 | * a composite IN condition will be generated. |
||
| 1211 | * The second operand is an array of values that column value should be among. |
||
| 1212 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1213 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1214 | * @param array $params the binding parameters to be populated |
||
| 1215 | * @return string the generated SQL expression |
||
| 1216 | * @throws Exception if wrong number of operands have been given. |
||
| 1217 | */ |
||
| 1218 | 224 | public function buildInCondition($operator, $operands, &$params) |
|
| 1279 | |||
| 1280 | /** |
||
| 1281 | * Builds SQL for IN condition |
||
| 1282 | * |
||
| 1283 | * @param string $operator |
||
| 1284 | * @param array $columns |
||
| 1285 | * @param Query $values |
||
| 1286 | * @param array $params |
||
| 1287 | * @return string SQL |
||
| 1288 | */ |
||
| 1289 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
|
| 1306 | |||
| 1307 | /** |
||
| 1308 | * Builds SQL for IN condition |
||
| 1309 | * |
||
| 1310 | * @param string $operator |
||
| 1311 | * @param array|\Traversable $columns |
||
| 1312 | * @param array $values |
||
| 1313 | * @param array $params |
||
| 1314 | * @return string SQL |
||
| 1315 | */ |
||
| 1316 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
|
| 1344 | |||
| 1345 | /** |
||
| 1346 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1347 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1348 | * @param array $operands an array of two or three operands |
||
| 1349 | * |
||
| 1350 | * - The first operand is the column name. |
||
| 1351 | * - The second operand is a single value or an array of values that column value |
||
| 1352 | * should be compared with. If it is an empty array the generated expression will |
||
| 1353 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1354 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1355 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1356 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1357 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1358 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1359 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1360 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1361 | * @param array $params the binding parameters to be populated |
||
| 1362 | * @return string the generated SQL expression |
||
| 1363 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1364 | */ |
||
| 1365 | 75 | public function buildLikeCondition($operator, $operands, &$params) |
|
| 1415 | |||
| 1416 | /** |
||
| 1417 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1418 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1419 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1420 | * @param array $params the binding parameters to be populated |
||
| 1421 | * @return string the generated SQL expression |
||
| 1422 | * @throws InvalidArgumentException if the operand is not a [[Query]] object. |
||
| 1423 | */ |
||
| 1424 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
|
| 1433 | |||
| 1434 | /** |
||
| 1435 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1436 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1437 | * @param array $operands contains two column names. |
||
| 1438 | * @param array $params the binding parameters to be populated |
||
| 1439 | * @return string the generated SQL expression |
||
| 1440 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1441 | */ |
||
| 1442 | 36 | public function buildSimpleCondition($operator, $operands, &$params) |
|
| 1470 | |||
| 1471 | /** |
||
| 1472 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1473 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1474 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1475 | * @since 2.0.8 |
||
| 1476 | */ |
||
| 1477 | 59 | public function selectExists($rawSql) |
|
| 1481 | } |
||
| 1482 |
