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@ -1,101 +1,52 @@
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<?php |
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/** |
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* Created by JetBrains PhpStorm. |
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* User: cebe |
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* Date: 30.09.13 |
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* Time: 11:39 |
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* To change this template use File | Settings | File Templates. |
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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\elasticsearch; |
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use yii\base\Component; |
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use Yii; |
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use yii\base\Component; |
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use yii\db\QueryInterface; |
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use yii\db\QueryTrait; |
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class Query extends Component |
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/** |
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* Class Query |
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* |
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* @author Carsten Brandt <mail@cebe.cc> |
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* @since 2.0 |
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*/ |
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class Query extends Component implements QueryInterface |
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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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use QueryTrait; |
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/** |
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* @var array the columns being selected. For example, `array('id', 'name')`. |
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* This is used to construct the SELECT clause in a SQL statement. If not set, if means selecting all columns. |
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* @see select() |
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*/ |
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public $select; |
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/** |
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* @var string|array query condition. This refers to the WHERE clause in a SQL statement. |
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* For example, `age > 31 AND team = 1`. |
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* @see where() |
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*/ |
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public $where; |
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/** |
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* @var integer maximum number of records to be returned. If not set or less than 0, it means no limit. |
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*/ |
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public $limit; |
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/** |
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* @var integer zero-based offset from where the records are to be returned. If not set or |
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* less than 0, it means starting from the beginning. |
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*/ |
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public $offset; |
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/** |
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* @var array how to sort the query results. This is used to construct the ORDER BY clause in a SQL statement. |
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* The array keys are the columns to be sorted by, and the array values are the corresponding sort directions which |
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* can be either [[Query::SORT_ASC]] or [[Query::SORT_DESC]]. The array may also contain [[Expression]] objects. |
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* If that is the case, the expressions will be converted into strings without any change. |
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*/ |
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public $orderBy; |
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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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public $select; // TODO fields |
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public $index; |
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public $type; |
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/** |
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* Creates a DB command that can be used to execute this query. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* If this parameter is not given, the `elasticsearch` application component will be used. |
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* @return Command the created DB command instance. |
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*/ |
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public function createCommand($db = null) |
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{ |
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if ($db === null) { |
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$db = Yii::$app->elasticsearch; |
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$db = Yii::$app->getComponent('elasticsearch'); |
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} |
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$query = $db->getQueryBuilder()->build($this); |
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return $db->createCommand($query); |
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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 $row |
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* } |
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* ~~~ |
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* |
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* @return Query the query object itself |
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*/ |
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public function indexBy($column) |
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{ |
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$this->indexBy = $column; |
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return $this; |
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$query = $db->getQueryBuilder()->build($this); |
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return $db->createCommand($query, $this->index, $this->type); |
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} |
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/** |
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@ -110,7 +61,7 @@ class Query extends Component
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if ($this->indexBy === null) { |
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return $rows; |
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} |
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$result = array(); |
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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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@ -137,291 +88,130 @@ class Query extends Component
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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 $column |
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* @param string $column name of the column to select |
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* @param Connection $db the database connection used to execute the query. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return string|boolean the value of the first column in the first row of the query result. |
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* False is returned if the query result is empty. |
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*/ |
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public function scalar($column) |
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public function scalar($column, $db = null) |
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{ |
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// TODO implement |
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return null; |
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$record = $this->one($db); |
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if ($record === null) { |
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return false; |
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} else { |
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return $record->$column; |
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} |
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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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* Executes the query and returns the first column of the result. |
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* @param Connection $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer number of records |
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* @return array the first column of the query result. An empty array is returned if the query results in nothing. |
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*/ |
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public function count($db = null) |
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public function column($db = null) |
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{ |
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return $this->createCommand($db)->queryCount(); |
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return $this->createCommand($db)->queryColumn(); |
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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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// $this->select = array("SUM($q)"); |
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// return $this->createCommand($db)->queryScalar(); |
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// } |
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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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// $this->select = array("AVG($q)"); |
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// return $this->createCommand($db)->queryScalar(); |
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// } |
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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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// $this->select = array("MIN($q)"); |
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// return $this->createCommand($db)->queryScalar(); |
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// } |
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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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// $this->select = array("MAX($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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* 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 $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return boolean whether the query result contains any row of data. |
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* If this parameter is not given (or null), the `db` application component will be used. |
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* @return integer number of records |
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*/ |
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public function exists() |
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public function count($q = '*', $db = null) |
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{ |
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return $this->one() !== null; |
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$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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* Sets the WHERE part of the query. |
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* |
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* The method requires a $condition parameter, and optionally a $params parameter |
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* specifying the values to be bound to the query. |
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* |
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* The $condition parameter should be either a string (e.g. 'id=1') or an array. |
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* If the latter, it must be in one of the following two formats: |
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* |
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* - hash format: `array('column1' => value1, 'column2' => value2, ...)` |
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* - operator format: `array(operator, operand1, operand2, ...)` |
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* |
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* A condition in hash format represents the following SQL expression in general: |
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* `column1=value1 AND column2=value2 AND ...`. In case when a value is an array, |
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* an `IN` expression will be generated. And if a value is null, `IS NULL` will be used |
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* in the generated expression. Below are some examples: |
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* |
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* - `array('type' => 1, 'status' => 2)` generates `(type = 1) AND (status = 2)`. |
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* - `array('id' => array(1, 2, 3), 'status' => 2)` generates `(id IN (1, 2, 3)) AND (status = 2)`. |
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* - `array('status' => null) generates `status IS NULL`. |
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* |
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* A condition in operator format generates the SQL expression according to the specified operator, which |
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* can be one of the followings: |
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* |
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* - `and`: the operands should be concatenated together using `AND`. For example, |
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* `array('and', 'id=1', 'id=2')` will generate `id=1 AND id=2`. If an operand is an array, |
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* it will be converted into a string using the rules described here. For example, |
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* `array('and', 'type=1', array('or', 'id=1', 'id=2'))` will generate `type=1 AND (id=1 OR id=2)`. |
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* The method will NOT do any quoting or escaping. |
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* |
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* - `or`: similar to the `and` operator except that the operands are concatenated using `OR`. |
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* |
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* - `between`: operand 1 should be the column name, and operand 2 and 3 should be the |
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* starting and ending values of the range that the column is in. |
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* For example, `array('between', 'id', 1, 10)` will generate `id BETWEEN 1 AND 10`. |
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* |
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* - `not between`: similar to `between` except the `BETWEEN` is replaced with `NOT BETWEEN` |
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* in the generated condition. |
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* |
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* - `in`: operand 1 should be a column or DB expression, and operand 2 be an array representing |
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* the range of the values that the column or DB expression should be in. For example, |
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* `array('in', 'id', array(1, 2, 3))` will generate `id IN (1, 2, 3)`. |
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* The method will properly quote the column name and escape values in the range. |
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* |
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* - `not in`: similar to the `in` operator except that `IN` is replaced with `NOT IN` in the generated condition. |
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* |
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* - `like`: operand 1 should be a column or DB expression, and operand 2 be a string or an array representing |
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* the values that the column or DB expression should be like. |
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* For example, `array('like', 'name', '%tester%')` will generate `name LIKE '%tester%'`. |
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* When the value range is given as an array, multiple `LIKE` predicates will be generated and concatenated |
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* using `AND`. For example, `array('like', 'name', array('%test%', '%sample%'))` will generate |
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* `name LIKE '%test%' AND name LIKE '%sample%'`. |
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* The method will properly quote the column name and escape values in the range. |
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* |
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* - `or like`: similar to the `like` operator except that `OR` is used to concatenate the `LIKE` |
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* predicates when operand 2 is an array. |
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* |
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* - `not like`: similar to the `like` operator except that `LIKE` is replaced with `NOT LIKE` |
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* in the generated condition. |
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* |
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* - `or not like`: similar to the `not like` operator except that `OR` is used to concatenate |
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* the `NOT LIKE` predicates. |
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* |
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* @param string|array $condition the conditions that should be put in the WHERE part. |
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* @return Query the query object itself |
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* @see andWhere() |
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* @see orWhere() |
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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 $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the sum of the specified column values |
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*/ |
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public function where($condition) |
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public function sum($q, $db = null) |
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{ |
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$this->where = $condition; |
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return $this; |
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$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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* 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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* @return Query the query object itself |
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* @see where() |
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* @see orWhere() |
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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 $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the average of the specified column values. |
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*/ |
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public function andWhere($condition) |
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public function average($q, $db = null) |
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{ |
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if ($this->where === null) { |
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$this->where = $condition; |
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} else { |
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$this->where = array('and', $this->where, $condition); |
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} |
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return $this; |
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$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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* 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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* @return Query the query object itself |
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* @see where() |
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* @see andWhere() |
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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 $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the minimum of the specified column values. |
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*/ |
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public function orWhere($condition) |
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public function min($q, $db = null) |
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{ |
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if ($this->where === null) { |
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$this->where = $condition; |
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} else { |
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$this->where = array('or', $this->where, $condition); |
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} |
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return $this; |
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$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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* 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. `array('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 Query the query object itself |
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* @see addOrderBy() |
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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 $db the database connection used to generate the SQL statement. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return integer the maximum of the specified column values. |
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*/ |
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public function orderBy($columns) |
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public function max($q, $db = null) |
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{ |
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$this->orderBy = $this->normalizeOrderBy($columns); |
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return $this; |
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$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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* 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 |
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* (e.g. `array('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 Query the query object itself |
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* @see orderBy() |
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* Returns a value indicating whether the query result contains any row of data. |
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* @param Connection $db the database connection used to execute the query. |
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* If this parameter is not given, the `db` application component will be used. |
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* @return boolean whether the query result contains any row of data. |
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*/ |
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public function addOrderBy($columns) |
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{ |
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$columns = $this->normalizeOrderBy($columns); |
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if ($this->orderBy === null) { |
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$this->orderBy = $columns; |
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} else { |
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$this->orderBy = array_merge($this->orderBy, $columns); |
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} |
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return $this; |
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} |
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protected function normalizeOrderBy($columns) |
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public function exists($db = null) |
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{ |
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if (is_array($columns)) { |
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return $columns; |
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} else { |
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$columns = preg_split('/\s*,\s*/', trim($columns), -1, PREG_SPLIT_NO_EMPTY); |
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$result = array(); |
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foreach ($columns as $column) { |
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if (preg_match('/^(.*?)\s+(asc|desc)$/i', $column, $matches)) { |
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$result[$matches[1]] = strcasecmp($matches[2], 'desc') ? self::SORT_ASC : self::SORT_DESC; |
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} else { |
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$result[$column] = self::SORT_ASC; |
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} |
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} |
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return $result; |
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} |
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|
// TODO check for exists |
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|
return $this->one($db) !== null; |
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} |
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/** |
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|
|
* Sets the LIMIT part of the query. |
|
|
|
|
* @param integer $limit the limit. Use null or negative value to disable limit. |
|
|
|
|
* @return Query the query object itself |
|
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|
|
* Executes the query and returns all results as an array. |
|
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|
|
* @param Connection $db the database connection used to execute the query. |
|
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|
|
* If this parameter is not given, the `elasticsearch` application component will be used. |
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|
|
* @return array the query results. If the query results in nothing, an empty array will be returned. |
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|
|
*/ |
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|
|
public function limit($limit) |
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|
|
public function delete($db = null) |
|
|
|
|
{ |
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|
|
$this->limit = $limit; |
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|
|
return $this; |
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|
|
// TODO http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-delete-by-query.html |
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|
} |
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|
|
/** |
|
|
|
|
* Sets the OFFSET part of the query. |
|
|
|
|
* @param integer $offset the offset. Use null or negative value to disable offset. |
|
|
|
|
* @return Query the query object itself |
|
|
|
|
*/ |
|
|
|
|
public function offset($offset) |
|
|
|
|
public function from($index, $type = null) |
|
|
|
|
{ |
|
|
|
|
$this->offset = $offset; |
|
|
|
|
return $this; |
|
|
|
|
$this->index = $index; |
|
|
|
|
$this->type = $type; |
|
|
|
|
} |
|
|
|
|
} |
Carsten Brandt
11 years ago