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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\sphinx; |
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use Yii; |
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use yii\base\Component; |
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use yii\db\Expression; |
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/** |
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* Class Query |
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* |
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* @author Paul Klimov <klimov.paul@gmail.com> |
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* @since 2.0 |
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*/ |
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class Query extends Component |
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{ |
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/** |
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* Sort ascending |
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* @see orderBy |
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*/ |
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const SORT_ASC = false; |
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/** |
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* Sort descending |
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* @see orderBy |
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*/ |
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const SORT_DESC = true; |
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public $select; |
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/** |
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* @var string additional option that should be appended to the 'SELECT' keyword. For example, |
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* in MySQL, the option 'SQL_CALC_FOUND_ROWS' can be used. |
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*/ |
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public $selectOption; |
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/** |
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* @var boolean whether to select distinct rows of data only. If this is set true, |
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* the SELECT clause would be changed to SELECT DISTINCT. |
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*/ |
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public $distinct; |
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public $from; |
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public $where; |
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public $limit; |
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public $offset; |
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public $orderBy; |
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public $groupBy; |
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/** |
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* @var string WITHIN GROUP ORDER BY clause. This is a Sphinx specific extension |
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* that lets you control how the best row within a group will to be selected. |
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*/ |
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public $within; |
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/** |
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* @var array per-query options in format: optionName => optionValue |
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* They will compose OPTION clause. This is a Sphinx specific extension |
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* that lets you control a number of per-query options. |
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*/ |
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public $options; |
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/** |
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* @var array list of query parameter values indexed by parameter placeholders. |
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* For example, `[':name' => 'Dan', ':age' => 31]`. |
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*/ |
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public $params; |
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/** |
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* @var string|callable $column the name of the column by which the query results should be indexed by. |
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* This can also be a callable (e.g. anonymous function) that returns the index value based on the given |
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* row data. For more details, see [[indexBy()]]. This property is only used by [[all()]]. |
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*/ |
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public $indexBy; |
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/** |
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* Creates a Sphinx command that can be used to execute this query. |
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* @param Connection $sphinxConnection the Sphinx connection used to generate the SQL statement. |
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* If this parameter is not given, the `sphinx` application component will be used. |
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* @return Command the created Sphinx command instance. |
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*/ |
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public function createCommand($sphinxConnection = null) |
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{ |
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if ($sphinxConnection === null) { |
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$sphinxConnection = Yii::$app->getComponent('sphinx'); |
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} |
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list ($sql, $params) = $sphinxConnection->getQueryBuilder()->build($this); |
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return $sphinxConnection->createCommand($sql, $params); |
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} |
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/** |
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* Sets the [[indexBy]] property. |
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* @param string|callable $column the name of the column by which the query results should be indexed by. |
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* This can also be a callable (e.g. anonymous function) that returns the index value based on the given |
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* row data. The signature of the callable should be: |
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* |
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* ~~~ |
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* function ($row) |
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* { |
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* // return the index value corresponding to $row |
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* } |
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* ~~~ |
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* |
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* @return static the query object itself |
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*/ |
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public function indexBy($column) |
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{ |
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$this->indexBy = $column; |
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return $this; |
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} |
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/** |
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* Executes the query and returns all results as an array. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return array the query results. If the query results in nothing, an empty array will be returned. |
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*/ |
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public function all($db = null) |
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{ |
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$rows = $this->createCommand($db)->queryAll(); |
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if ($this->indexBy === null) { |
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return $rows; |
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} |
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$result = []; |
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foreach ($rows as $row) { |
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if (is_string($this->indexBy)) { |
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$key = $row[$this->indexBy]; |
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} else { |
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$key = call_user_func($this->indexBy, $row); |
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} |
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$result[$key] = $row; |
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} |
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return $result; |
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} |
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/** |
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* Executes the query and returns a single row of result. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return array|boolean the first row (in terms of an array) of the query result. False is returned if the query |
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* results in nothing. |
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*/ |
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public function one($db = null) |
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{ |
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return $this->createCommand($db)->queryOne(); |
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} |
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/** |
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* Returns the query result as a scalar value. |
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* The value returned will be the first column in the first row of the query results. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return string|boolean the value of the first column in the first row of the query result. |
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* False is returned if the query result is empty. |
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*/ |
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public function scalar($db = null) |
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{ |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Executes the query and returns the first column of the result. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return array the first column of the query result. An empty array is returned if the query results in nothing. |
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*/ |
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public function column($db = null) |
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{ |
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return $this->createCommand($db)->queryColumn(); |
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} |
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/** |
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* Returns the number of records. |
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* @param string $q the COUNT expression. Defaults to '*'. |
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* Make sure you properly quote column names in the expression. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer number of records |
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*/ |
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public function count($q = '*', $db = null) |
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{ |
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$this->select = ["COUNT($q)"]; |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Returns the sum of the specified column values. |
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* @param string $q the column name or expression. |
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* Make sure you properly quote column names in the expression. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the sum of the specified column values |
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*/ |
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public function sum($q, $db = null) |
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{ |
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$this->select = ["SUM($q)"]; |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Returns the average of the specified column values. |
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* @param string $q the column name or expression. |
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* Make sure you properly quote column names in the expression. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the average of the specified column values. |
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*/ |
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public function average($q, $db = null) |
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{ |
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$this->select = ["AVG($q)"]; |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Returns the minimum of the specified column values. |
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* @param string $q the column name or expression. |
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* Make sure you properly quote column names in the expression. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the minimum of the specified column values. |
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*/ |
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public function min($q, $db = null) |
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{ |
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$this->select = ["MIN($q)"]; |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Returns the maximum of the specified column values. |
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* @param string $q the column name or expression. |
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* Make sure you properly quote column names in the expression. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the maximum of the specified column values. |
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*/ |
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public function max($q, $db = null) |
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{ |
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$this->select = ["MAX($q)"]; |
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return $this->createCommand($db)->queryScalar(); |
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} |
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/** |
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* Returns a value indicating whether the query result contains any row of data. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return boolean whether the query result contains any row of data. |
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*/ |
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public function exists($db = null) |
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{ |
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$this->select = [new Expression('1')]; |
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return $this->scalar($db) !== false; |
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} |
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/** |
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* Sets the SELECT part of the query. |
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* @param string|array $columns the columns to be selected. |
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* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. ['id', 'name']). |
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* Columns can contain table prefixes (e.g. "tbl_user.id") and/or column aliases (e.g. "tbl_user.id AS user_id"). |
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* The method will automatically quote the column names unless a column contains some parenthesis |
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* (which means the column contains a DB expression). |
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* @param string $option additional option that should be appended to the 'SELECT' keyword. For example, |
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* in MySQL, the option 'SQL_CALC_FOUND_ROWS' can be used. |
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* @return static the query object itself |
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*/ |
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public function select($columns, $option = null) |
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{ |
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if (!is_array($columns)) { |
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$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY); |
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} |
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$this->select = $columns; |
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$this->selectOption = $option; |
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return $this; |
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} |
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/** |
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* Sets the value indicating whether to SELECT DISTINCT or not. |
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* @param bool $value whether to SELECT DISTINCT or not. |
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* @return static the query object itself |
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*/ |
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public function distinct($value = true) |
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{ |
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$this->distinct = $value; |
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return $this; |
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} |
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/** |
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* Sets the FROM part of the query. |
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* @param string|array $tables the table(s) to be selected from. This can be either a string (e.g. `'tbl_user'`) |
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* or an array (e.g. `['tbl_user', 'tbl_profile']`) specifying one or several table names. |
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* Table names can contain schema prefixes (e.g. `'public.tbl_user'`) and/or table aliases (e.g. `'tbl_user u'`). |
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* The method will automatically quote the table names unless it contains some parenthesis |
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* (which means the table is given as a sub-query or DB expression). |
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* @return static the query object itself |
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*/ |
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public function from($tables) |
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{ |
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if (!is_array($tables)) { |
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$tables = preg_split('/\s*,\s*/', trim($tables), -1, PREG_SPLIT_NO_EMPTY); |
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} |
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$this->from = $tables; |
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return $this; |
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} |
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public function where($condition, $params = []) |
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{ |
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$this->where = $condition; |
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$this->addParams($params); |
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return $this; |
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} |
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/** |
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* Adds an additional WHERE condition to the existing one. |
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* The new condition and the existing one will be joined using the 'AND' operator. |
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* @param string|array $condition the new WHERE condition. Please refer to [[where()]] |
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* on how to specify this parameter. |
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* @param array $params the parameters (name => value) to be bound to the query. |
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* @return static the query object itself |
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* @see where() |
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* @see orWhere() |
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*/ |
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public function andWhere($condition, $params = []) |
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{ |
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if ($this->where === null) { |
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$this->where = $condition; |
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} else { |
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$this->where = ['and', $this->where, $condition]; |
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} |
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$this->addParams($params); |
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return $this; |
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} |
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/** |
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* Adds an additional WHERE condition to the existing one. |
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* The new condition and the existing one will be joined using the 'OR' operator. |
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* @param string|array $condition the new WHERE condition. Please refer to [[where()]] |
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* on how to specify this parameter. |
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* @param array $params the parameters (name => value) to be bound to the query. |
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* @return static the query object itself |
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* @see where() |
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* @see andWhere() |
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*/ |
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public function orWhere($condition, $params = []) |
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{ |
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if ($this->where === null) { |
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$this->where = $condition; |
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} else { |
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$this->where = ['or', $this->where, $condition]; |
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} |
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$this->addParams($params); |
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return $this; |
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} |
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/** |
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* Sets the GROUP BY part of the query. |
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* @param string|array $columns the columns to be grouped by. |
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* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. ['id', 'name']). |
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* The method will automatically quote the column names unless a column contains some parenthesis |
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* (which means the column contains a DB expression). |
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* @return static the query object itself |
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* @see addGroupBy() |
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*/ |
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public function groupBy($columns) |
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{ |
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if (!is_array($columns)) { |
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$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY); |
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} |
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$this->groupBy = $columns; |
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return $this; |
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} |
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/** |
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* Adds additional group-by columns to the existing ones. |
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* @param string|array $columns additional columns to be grouped by. |
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* Columns can be specified in either a string (e.g. "id, name") or an array (e.g. ['id', 'name']). |
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* The method will automatically quote the column names unless a column contains some parenthesis |
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* (which means the column contains a DB expression). |
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* @return static the query object itself |
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* @see groupBy() |
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*/ |
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public function addGroupBy($columns) |
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{ |
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if (!is_array($columns)) { |
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$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY); |
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} |
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if ($this->groupBy === null) { |
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$this->groupBy = $columns; |
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} else { |
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$this->groupBy = array_merge($this->groupBy, $columns); |
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} |
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return $this; |
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} |
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/** |
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* Sets the ORDER BY part of the query. |
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* @param string|array $columns the columns (and the directions) to be ordered by. |
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* Columns can be specified in either a string (e.g. "id ASC, name DESC") or an array |
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* (e.g. `['id' => Query::SORT_ASC, 'name' => Query::SORT_DESC]`). |
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* The method will automatically quote the column names unless a column contains some parenthesis |
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* (which means the column contains a DB expression). |
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* @return static the query object itself |
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* @see addOrderBy() |
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*/ |
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public function orderBy($columns) |
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{ |
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$this->orderBy = $this->normalizeOrderBy($columns); |
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return $this; |
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} |
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|
/** |
|
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|
* Adds additional ORDER BY columns to the query. |
|
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|
|
* @param string|array $columns the columns (and the directions) to be ordered by. |
|
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|
|
* Columns can be specified in either a string (e.g. "id ASC, name DESC") or an array |
|
|
|
|
* (e.g. `['id' => Query::SORT_ASC, 'name' => Query::SORT_DESC]`). |
|
|
|
|
* The method will automatically quote the column names unless a column contains some parenthesis |
|
|
|
|
* (which means the column contains a DB expression). |
|
|
|
|
* @return static the query object itself |
|
|
|
|
* @see orderBy() |
|
|
|
|
*/ |
|
|
|
|
public function addOrderBy($columns) |
|
|
|
|
{ |
|
|
|
|
$columns = $this->normalizeOrderBy($columns); |
|
|
|
|
if ($this->orderBy === null) { |
|
|
|
|
$this->orderBy = $columns; |
|
|
|
|
} else { |
|
|
|
|
$this->orderBy = array_merge($this->orderBy, $columns); |
|
|
|
|
} |
|
|
|
|
return $this; |
|
|
|
|
} |
|
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|
|
|
|
|
|
protected function normalizeOrderBy($columns) |
|
|
|
|
{ |
|
|
|
|
if (is_array($columns)) { |
|
|
|
|
return $columns; |
|
|
|
|
} else { |
|
|
|
|
$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY); |
|
|
|
|
$result = []; |
|
|
|
|
foreach ($columns as $column) { |
|
|
|
|
if (preg_match('/^(.*?)\s+(asc|desc)$/i', $column, $matches)) { |
|
|
|
|
$result[$matches[1]] = strcasecmp($matches[2], 'desc') ? self::SORT_ASC : self::SORT_DESC; |
|
|
|
|
} else { |
|
|
|
|
$result[$column] = self::SORT_ASC; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return $result; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Sets the LIMIT part of the query. |
|
|
|
|
* @param integer $limit the limit. Use null or negative value to disable limit. |
|
|
|
|
* @return static the query object itself |
|
|
|
|
*/ |
|
|
|
|
public function limit($limit) |
|
|
|
|
{ |
|
|
|
|
$this->limit = $limit; |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Sets the OFFSET part of the query. |
|
|
|
|
* @param integer $offset the offset. Use null or negative value to disable offset. |
|
|
|
|
* @return static the query object itself |
|
|
|
|
*/ |
|
|
|
|
public function offset($offset) |
|
|
|
|
{ |
|
|
|
|
$this->offset = $offset; |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Sets the parameters to be bound to the query. |
|
|
|
|
* @param array $params list of query parameter values indexed by parameter placeholders. |
|
|
|
|
* For example, `[':name' => 'Dan', ':age' => 31]`. |
|
|
|
|
* @return static the query object itself |
|
|
|
|
* @see addParams() |
|
|
|
|
*/ |
|
|
|
|
public function params($params) |
|
|
|
|
{ |
|
|
|
|
$this->params = $params; |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Adds additional parameters to be bound to the query. |
|
|
|
|
* @param array $params list of query parameter values indexed by parameter placeholders. |
|
|
|
|
* For example, `[':name' => 'Dan', ':age' => 31]`. |
|
|
|
|
* @return static the query object itself |
|
|
|
|
* @see params() |
|
|
|
|
*/ |
|
|
|
|
public function addParams($params) |
|
|
|
|
{ |
|
|
|
|
if (!empty($params)) { |
|
|
|
|
if ($this->params === null) { |
|
|
|
|
$this->params = $params; |
|
|
|
|
} else { |
|
|
|
|
foreach ($params as $name => $value) { |
|
|
|
|
if (is_integer($name)) { |
|
|
|
|
$this->params[] = $value; |
|
|
|
|
} else { |
|
|
|
|
$this->params[$name] = $value; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public function options(array $options) |
|
|
|
|
{ |
|
|
|
|
$this->options = $options; |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public function addOptions(array $options) |
|
|
|
|
{ |
|
|
|
|
if (is_array($this->options)) { |
|
|
|
|
$this->options = array_merge($this->options, $options); |
|
|
|
|
} else { |
|
|
|
|
$this->options = $options; |
|
|
|
|
} |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public function within($columns) |
|
|
|
|
{ |
|
|
|
|
$this->within = $this->normalizeOrderBy($columns); |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public function addWithin($columns) |
|
|
|
|
{ |
|
|
|
|
$columns = $this->normalizeOrderBy($columns); |
|
|
|
|
if ($this->within === null) { |
|
|
|
|
$this->within = $columns; |
|
|
|
|
} else { |
|
|
|
|
$this->within = array_merge($this->within, $columns); |
|
|
|
|
} |
|
|
|
|
return $this; |
|
|
|
|
} |
|
|
|
|
} |
Paul Klimov
11 years ago