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@ -12,25 +12,20 @@ use yii\base\Component; |
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use yii\base\InvalidCallException; |
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use yii\base\InvalidCallException; |
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use yii\db\Expression; |
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use yii\db\Expression; |
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use yii\db\QueryInterface; |
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use yii\db\QueryInterface; |
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use yii\db\QueryTrait; |
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/** |
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/** |
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* Class Query |
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* Class Query |
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* |
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* |
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* |
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* Note: implicit LIMIT 0,20 is present by default. |
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* |
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* @author Paul Klimov <klimov.paul@gmail.com> |
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* @author Paul Klimov <klimov.paul@gmail.com> |
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* @since 2.0 |
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* @since 2.0 |
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*/ |
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*/ |
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class Query extends Component implements QueryInterface |
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class Query extends Component implements QueryInterface |
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{ |
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{ |
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/** |
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use QueryTrait; |
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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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/** |
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/** |
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* @var array the columns being selected. For example, `['id', 'group_id']`. |
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* @var array the columns being selected. For example, `['id', 'group_id']`. |
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@ -59,30 +54,6 @@ class Query extends Component implements QueryInterface |
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*/ |
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*/ |
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public $match; |
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public $match; |
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/** |
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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, `group_id > 5 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. |
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* Note: if not set implicit LIMIT 0,20 is present by default. |
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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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* Note: implicit LIMIT 0,20 is present by default. |
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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 array how to group the query results. For example, `['company', 'department']`. |
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* @var array how to group the query results. For example, `['company', 'department']`. |
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* This is used to construct the GROUP BY clause in a SQL statement. |
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* This is used to construct the GROUP BY clause in a SQL statement. |
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*/ |
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*/ |
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@ -105,12 +76,6 @@ class Query extends Component implements QueryInterface |
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*/ |
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*/ |
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public $params; |
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public $params; |
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/** |
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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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* @var callback PHP callback, which should be used to fetch source data for the snippets. |
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* @var callback PHP callback, which should be used to fetch source data for the snippets. |
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* Such callback will receive array of query result rows as an argument and must return the |
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* Such callback will receive array of query result rows as an argument and must return the |
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* array of snippet source strings in the order, which match one of incoming rows. |
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* array of snippet source strings in the order, which match one of incoming rows. |
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@ -183,27 +148,6 @@ class Query extends Component implements QueryInterface |
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} |
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} |
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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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* 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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* @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 `db` application component will be used. |
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@ -571,83 +515,6 @@ class Query extends Component implements QueryInterface |
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} |
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} |
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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 $columns the columns (and the directions) to be ordered by. |
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* Columns can be specified in either a string (e.g. "id ASC, name DESC") or an array |
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* (e.g. `['id' => Query::SORT_ASC, 'name' => Query::SORT_DESC]`). |
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* The method will automatically quote the column names unless a column contains some parenthesis |
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* (which means the column contains a DB expression). |
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* @return static the query object itself |
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* @see orderBy() |
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*/ |
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public function addOrderBy($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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{ |
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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 = []; |
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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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} |
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/** |
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* Sets the LIMIT part of the query. |
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* @param integer $limit the limit. Use null or negative value to disable limit. |
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* @return static the query object itself |
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*/ |
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public function limit($limit) |
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{ |
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$this->limit = $limit; |
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return $this; |
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} |
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/** |
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* Sets the OFFSET part of the query. |
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* @param integer $offset the offset. Use null or negative value to disable offset. |
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* @return static the query object itself |
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*/ |
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public function offset($offset) |
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{ |
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$this->offset = $offset; |
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return $this; |
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} |
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/** |
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* Sets the parameters to be bound to the query. |
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* Sets the parameters to be bound to the query. |
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* @param array $params list of query parameter values indexed by parameter placeholders. |
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* @param array $params list of query parameter values indexed by parameter placeholders. |
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* For example, `[':name' => 'Dan', ':age' => 31]`. |
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* For example, `[':name' => 'Dan', ':age' => 31]`. |
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