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671 lines
23 KiB
671 lines
23 KiB
<?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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|
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namespace yii\sphinx; |
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|
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use yii\base\InvalidConfigException; |
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use yii\base\NotSupportedException; |
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use yii\db\ActiveRelationInterface; |
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use yii\db\BaseActiveRecord; |
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use yii\db\StaleObjectException; |
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use yii\helpers\Inflector; |
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use Yii; |
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use yii\helpers\StringHelper; |
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|
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/** |
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* ActiveRecord is the base class for classes representing relational data in terms of objects. |
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* |
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* Warning: optimistic lock will NOT work in case of updating fields (not attributes) for the |
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* runtime indexes! |
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* |
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* @property array $dirtyAttributes The changed attribute values (name-value pairs). This property is |
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* read-only. |
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* @property boolean $isNewRecord Whether the record is new and should be inserted when calling [[save()]]. |
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* @property array $oldAttributes The old attribute values (name-value pairs). |
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* @property mixed $oldPrimaryKey The old primary key value. An array (column name => column value) is |
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* returned if the primary key is composite. A string is returned otherwise (null will be returned if the key |
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* value is null). This property is read-only. |
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* @property array $relatedRecords An array of the populated related records indexed by relation names. This property is |
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* read-only. |
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* @property mixed $primaryKey The primary key value. An array (column name => column value) is returned if |
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* the primary key is composite. A string is returned otherwise (null will be returned if the key value is null). |
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* This property is read-only. |
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* @property string $snippet Snippet value. |
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* @property string $snippetSource Snippet source string. This property is read-only. |
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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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abstract class ActiveRecord extends BaseActiveRecord |
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{ |
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/** |
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* The insert operation. This is mainly used when overriding [[transactions()]] to specify which operations are transactional. |
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*/ |
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const OP_INSERT = 0x01; |
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/** |
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* The update operation. This is mainly used when overriding [[transactions()]] to specify which operations are transactional. |
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*/ |
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const OP_UPDATE = 0x02; |
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/** |
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* The delete operation. This is mainly used when overriding [[transactions()]] to specify which operations are transactional. |
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*/ |
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const OP_DELETE = 0x04; |
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/** |
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* All three operations: insert, update, delete. |
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* This is a shortcut of the expression: OP_INSERT | OP_UPDATE | OP_DELETE. |
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*/ |
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const OP_ALL = 0x07; |
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/** |
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* @var string current snippet value for this Active Record instance. |
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* It will be filled up automatically when instance found using [[Query::snippetCallback]] |
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* or [[ActiveQuery::snippetByModel()]]. |
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*/ |
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private $_snippet; |
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/** |
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* Returns the Sphinx connection used by this AR class. |
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* By default, the "sphinx" application component is used as the Sphinx connection. |
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* You may override this method if you want to use a different Sphinx connection. |
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* @return Connection the Sphinx connection used by this AR class. |
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*/ |
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public static function getDb() |
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{ |
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return \Yii::$app->getComponent('sphinx'); |
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} |
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/** |
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* Creates an [[ActiveQuery]] instance with a given SQL statement. |
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* |
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* Note that because the SQL statement is already specified, calling additional |
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* query modification methods (such as `where()`, `order()`) on the created [[ActiveQuery]] |
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* instance will have no effect. However, calling `with()`, `asArray()` or `indexBy()` is |
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* still fine. |
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* |
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* Below is an example: |
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* |
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* ~~~ |
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* $customers = Article::findBySql("SELECT * FROM `idx_article` WHERE MATCH('development')")->all(); |
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* ~~~ |
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* |
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* @param string $sql the SQL statement to be executed |
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* @param array $params parameters to be bound to the SQL statement during execution. |
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* @return ActiveQuery the newly created [[ActiveQuery]] instance |
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*/ |
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public static function findBySql($sql, $params = []) |
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{ |
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$query = static::createQuery(); |
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$query->sql = $sql; |
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return $query->params($params); |
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} |
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/** |
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* Updates the whole table using the provided attribute values and conditions. |
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* For example, to change the status to be 1 for all articles which status is 2: |
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* |
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* ~~~ |
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* Article::updateAll(['status' => 1], 'status = 2'); |
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* ~~~ |
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* |
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* @param array $attributes attribute values (name-value pairs) to be saved into the table |
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* @param string|array $condition the conditions that will be put in the WHERE part of the UPDATE SQL. |
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* Please refer to [[Query::where()]] on how to specify this parameter. |
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* @param array $params the parameters (name => value) to be bound to the query. |
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* @return integer the number of rows updated |
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*/ |
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public static function updateAll($attributes, $condition = '', $params = []) |
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{ |
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$command = static::getDb()->createCommand(); |
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$command->update(static::indexName(), $attributes, $condition, $params); |
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return $command->execute(); |
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} |
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/** |
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* Deletes rows in the index using the provided conditions. |
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* |
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* For example, to delete all articles whose status is 3: |
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* |
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* ~~~ |
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* Article::deleteAll('status = 3'); |
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* ~~~ |
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* |
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* @param string|array $condition the conditions that will be put in the WHERE part of the DELETE SQL. |
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* Please refer to [[Query::where()]] on how to specify this parameter. |
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* @param array $params the parameters (name => value) to be bound to the query. |
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* @return integer the number of rows deleted |
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*/ |
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public static function deleteAll($condition = '', $params = []) |
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{ |
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$command = static::getDb()->createCommand(); |
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$command->delete(static::indexName(), $condition, $params); |
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return $command->execute(); |
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} |
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/** |
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* Creates an [[ActiveQuery]] instance. |
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* This method is called by [[find()]], [[findBySql()]] and [[count()]] to start a SELECT query. |
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* You may override this method to return a customized query (e.g. `ArticleQuery` specified |
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* written for querying `Article` purpose.) |
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* @return ActiveQuery the newly created [[ActiveQuery]] instance. |
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*/ |
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public static function createQuery() |
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{ |
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return new ActiveQuery(['modelClass' => get_called_class()]); |
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} |
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/** |
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* Declares the name of the Sphinx index associated with this AR class. |
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* By default this method returns the class name as the index name by calling [[Inflector::camel2id()]]. |
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* For example, 'Article' becomes 'article', and 'StockItem' becomes |
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* 'stock_item'. You may override this method if the index is not named after this convention. |
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* @return string the index name |
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*/ |
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public static function indexName() |
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{ |
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return Inflector::camel2id(StringHelper::basename(get_called_class()), '_'); |
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} |
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/** |
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* Returns the schema information of the Sphinx index associated with this AR class. |
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* @return IndexSchema the schema information of the Sphinx index associated with this AR class. |
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* @throws InvalidConfigException if the index for the AR class does not exist. |
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*/ |
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public static function getIndexSchema() |
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{ |
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$schema = static::getDb()->getIndexSchema(static::indexName()); |
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if ($schema !== null) { |
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return $schema; |
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} else { |
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throw new InvalidConfigException("The index does not exist: " . static::indexName()); |
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} |
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} |
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/** |
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* Returns the primary key name for this AR class. |
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* The default implementation will return the primary key as declared |
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* in the Sphinx index, which is associated with this AR class. |
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* |
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* Note that an array should be returned even for a table with single primary key. |
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* |
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* @return string[] the primary keys of the associated Sphinx index. |
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*/ |
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public static function primaryKey() |
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{ |
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return [static::getIndexSchema()->primaryKey]; |
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} |
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/** |
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* Builds a snippet from provided data and query, using specified index settings. |
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* @param string|array $source is the source data to extract a snippet from. |
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* It could be either a single string or array of strings. |
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* @param string $match the full-text query to build snippets for. |
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* @param array $options list of options in format: optionName => optionValue |
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* @return string|array built snippet in case "source" is a string, list of built snippets |
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* in case "source" is an array. |
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*/ |
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public static function callSnippets($source, $match, $options = []) |
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{ |
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$command = static::getDb()->createCommand(); |
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$command->callSnippets(static::indexName(), $source, $match, $options); |
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if (is_array($source)) { |
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return $command->queryColumn(); |
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} else { |
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return $command->queryScalar(); |
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} |
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} |
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/** |
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* Returns tokenized and normalized forms of the keywords, and, optionally, keyword statistics. |
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* @param string $text the text to break down to keywords. |
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* @param boolean $fetchStatistic whether to return document and hit occurrence statistics |
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* @return array keywords and statistics |
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*/ |
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public static function callKeywords($text, $fetchStatistic = false) |
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{ |
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$command = static::getDb()->createCommand(); |
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$command->callKeywords(static::indexName(), $text, $fetchStatistic); |
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return $command->queryAll(); |
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} |
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/** |
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* @param string $snippet |
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*/ |
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public function setSnippet($snippet) |
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{ |
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$this->_snippet = $snippet; |
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} |
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/** |
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* Returns current snippet value or generates new one from given match. |
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* @param string $match snippet source query |
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* @param array $options list of options in format: optionName => optionValue |
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* @return string snippet value |
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*/ |
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public function getSnippet($match = null, $options = []) |
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{ |
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if ($match !== null) { |
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$this->_snippet = $this->fetchSnippet($match, $options); |
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} |
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return $this->_snippet; |
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} |
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/** |
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* Builds up the snippet value from the given query. |
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* @param string $match the full-text query to build snippets for. |
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* @param array $options list of options in format: optionName => optionValue |
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* @return string snippet value. |
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*/ |
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protected function fetchSnippet($match, $options = []) |
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{ |
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return static::callSnippets($this->getSnippetSource(), $match, $options); |
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} |
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/** |
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* Returns the string, which should be used as a source to create snippet for this |
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* Active Record instance. |
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* Child classes must implement this method to return the actual snippet source text. |
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* For example: |
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* ~~~ |
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* public function getSnippetSource() |
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* { |
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* return $this->snippetSourceRelation->content; |
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* } |
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* ~~~ |
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* @return string snippet source string. |
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* @throws \yii\base\NotSupportedException if this is not supported by the Active Record class |
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*/ |
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public function getSnippetSource() |
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{ |
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throw new NotSupportedException($this->className() . ' does not provide snippet source.'); |
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} |
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/** |
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* Declares which operations should be performed within a transaction in different scenarios. |
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* The supported DB operations are: [[OP_INSERT]], [[OP_UPDATE]] and [[OP_DELETE]], |
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* which correspond to the [[insert()]], [[update()]] and [[delete()]] methods, respectively. |
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* By default, these methods are NOT enclosed in a transaction. |
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* |
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* In some scenarios, to ensure data consistency, you may want to enclose some or all of them |
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* in transactions. You can do so by overriding this method and returning the operations |
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* that need to be transactional. For example, |
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* |
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* ~~~ |
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* return [ |
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* 'admin' => self::OP_INSERT, |
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* 'api' => self::OP_INSERT | self::OP_UPDATE | self::OP_DELETE, |
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* // the above is equivalent to the following: |
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* // 'api' => self::OP_ALL, |
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* |
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* ]; |
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* ~~~ |
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* |
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* The above declaration specifies that in the "admin" scenario, the insert operation ([[insert()]]) |
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* should be done in a transaction; and in the "api" scenario, all the operations should be done |
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* in a transaction. |
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* |
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* @return array the declarations of transactional operations. The array keys are scenarios names, |
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* and the array values are the corresponding transaction operations. |
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*/ |
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public function transactions() |
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{ |
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return []; |
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} |
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|
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/** |
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* Creates an [[ActiveRelationInterface]] instance. |
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* This method is called by [[hasOne()]] and [[hasMany()]] to create a relation instance. |
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* You may override this method to return a customized relation. |
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* @param array $config the configuration passed to the ActiveRelation class. |
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* @return ActiveRelationInterface the newly created [[ActiveRelation]] instance. |
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*/ |
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public static function createActiveRelation($config = []) |
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{ |
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return new ActiveRelation($config); |
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} |
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/** |
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* Returns the list of all attribute names of the model. |
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* The default implementation will return all column names of the table associated with this AR class. |
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* @return array list of attribute names. |
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*/ |
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public function attributes() |
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{ |
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return array_keys(static::getIndexSchema()->columns); |
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} |
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|
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/** |
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* Inserts a row into the associated Sphinx index using the attribute values of this record. |
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* |
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* This method performs the following steps in order: |
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* |
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* 1. call [[beforeValidate()]] when `$runValidation` is true. If validation |
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* fails, it will skip the rest of the steps; |
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* 2. call [[afterValidate()]] when `$runValidation` is true. |
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* 3. call [[beforeSave()]]. If the method returns false, it will skip the |
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* rest of the steps; |
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* 4. insert the record into index. If this fails, it will skip the rest of the steps; |
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* 5. call [[afterSave()]]; |
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* |
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* In the above step 1, 2, 3 and 5, events [[EVENT_BEFORE_VALIDATE]], |
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* [[EVENT_BEFORE_INSERT]], [[EVENT_AFTER_INSERT]] and [[EVENT_AFTER_VALIDATE]] |
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* will be raised by the corresponding methods. |
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* |
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* Only the [[changedAttributes|changed attribute values]] will be inserted. |
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* |
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* For example, to insert an article record: |
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* |
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* ~~~ |
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* $article = new Article; |
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* $article->id = $id; |
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* $article->genre_id = $genreId; |
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* $article->content = $content; |
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* $article->insert(); |
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* ~~~ |
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* |
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* @param boolean $runValidation whether to perform validation before saving the record. |
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* If the validation fails, the record will not be inserted. |
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* @param array $attributes list of attributes that need to be saved. Defaults to null, |
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* meaning all attributes that are loaded from index will be saved. |
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* @return boolean whether the attributes are valid and the record is inserted successfully. |
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* @throws \Exception in case insert failed. |
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*/ |
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public function insert($runValidation = true, $attributes = null) |
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{ |
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if ($runValidation && !$this->validate($attributes)) { |
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return false; |
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} |
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$db = static::getDb(); |
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if ($this->isTransactional(self::OP_INSERT) && $db->getTransaction() === null) { |
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$transaction = $db->beginTransaction(); |
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try { |
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$result = $this->insertInternal($attributes); |
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if ($result === false) { |
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$transaction->rollback(); |
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} else { |
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$transaction->commit(); |
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} |
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} catch (\Exception $e) { |
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$transaction->rollback(); |
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throw $e; |
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} |
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} else { |
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$result = $this->insertInternal($attributes); |
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} |
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return $result; |
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} |
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/** |
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* @see ActiveRecord::insert() |
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*/ |
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private function insertInternal($attributes = null) |
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{ |
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if (!$this->beforeSave(true)) { |
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return false; |
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} |
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$values = $this->getDirtyAttributes($attributes); |
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if (empty($values)) { |
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foreach ($this->getPrimaryKey(true) as $key => $value) { |
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$values[$key] = $value; |
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} |
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} |
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$db = static::getDb(); |
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$command = $db->createCommand()->insert($this->indexName(), $values); |
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if (!$command->execute()) { |
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return false; |
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} |
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foreach ($values as $name => $value) { |
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$this->setOldAttribute($name, $value); |
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} |
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$this->afterSave(true); |
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return true; |
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} |
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/** |
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* Saves the changes to this active record into the associated Sphinx index. |
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* |
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* This method performs the following steps in order: |
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* |
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* 1. call [[beforeValidate()]] when `$runValidation` is true. If validation |
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* fails, it will skip the rest of the steps; |
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* 2. call [[afterValidate()]] when `$runValidation` is true. |
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* 3. call [[beforeSave()]]. If the method returns false, it will skip the |
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* rest of the steps; |
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* 4. save the record into index. If this fails, it will skip the rest of the steps; |
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* 5. call [[afterSave()]]; |
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* |
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* In the above step 1, 2, 3 and 5, events [[EVENT_BEFORE_VALIDATE]], |
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* [[EVENT_BEFORE_UPDATE]], [[EVENT_AFTER_UPDATE]] and [[EVENT_AFTER_VALIDATE]] |
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* will be raised by the corresponding methods. |
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* |
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* Only the [[changedAttributes|changed attribute values]] will be saved into database. |
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* |
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* For example, to update an article record: |
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* |
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* ~~~ |
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* $article = Article::find(['id' => $id]); |
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* $article->genre_id = $genreId; |
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* $article->group_id = $groupId; |
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* $article->update(); |
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* ~~~ |
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* |
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* Note that it is possible the update does not affect any row in the table. |
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* In this case, this method will return 0. For this reason, you should use the following |
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* code to check if update() is successful or not: |
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* |
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* ~~~ |
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* if ($this->update() !== false) { |
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* // update successful |
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* } else { |
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* // update failed |
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* } |
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* ~~~ |
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* |
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* @param boolean $runValidation whether to perform validation before saving the record. |
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* If the validation fails, the record will not be inserted into the database. |
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* @param array $attributes list of attributes that need to be saved. Defaults to null, |
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* meaning all attributes that are loaded from DB will be saved. |
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* @return integer|boolean the number of rows affected, or false if validation fails |
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* or [[beforeSave()]] stops the updating process. |
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* @throws StaleObjectException if [[optimisticLock|optimistic locking]] is enabled and the data |
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* being updated is outdated. |
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* @throws \Exception in case update failed. |
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*/ |
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public function update($runValidation = true, $attributes = null) |
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{ |
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if ($runValidation && !$this->validate($attributes)) { |
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return false; |
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} |
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$db = static::getDb(); |
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if ($this->isTransactional(self::OP_UPDATE) && $db->getTransaction() === null) { |
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$transaction = $db->beginTransaction(); |
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try { |
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$result = $this->updateInternal($attributes); |
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if ($result === false) { |
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$transaction->rollback(); |
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} else { |
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$transaction->commit(); |
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} |
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} catch (\Exception $e) { |
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$transaction->rollback(); |
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throw $e; |
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} |
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} else { |
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$result = $this->updateInternal($attributes); |
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} |
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return $result; |
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} |
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|
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/** |
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* @see CActiveRecord::update() |
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* @throws StaleObjectException |
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*/ |
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protected function updateInternal($attributes = null) |
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{ |
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if (!$this->beforeSave(false)) { |
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return false; |
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} |
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$values = $this->getDirtyAttributes($attributes); |
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if (empty($values)) { |
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$this->afterSave(false); |
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return 0; |
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} |
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|
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// Replace is supported only by runtime indexes and necessary only for field update |
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$useReplace = false; |
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$indexSchema = $this->getIndexSchema(); |
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if ($this->getIndexSchema()->isRuntime) { |
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foreach ($values as $name => $value) { |
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$columnSchema = $indexSchema->getColumn($name); |
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if ($columnSchema->isField) { |
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$useReplace = true; |
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break; |
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} |
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} |
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} |
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|
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if ($useReplace) { |
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$values = array_merge($values, $this->getOldPrimaryKey(true)); |
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$command = static::getDb()->createCommand(); |
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$command->replace(static::indexName(), $values); |
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// We do not check the return value of replace because it's possible |
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// that the REPLACE statement doesn't change anything and thus returns 0. |
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$rows = $command->execute(); |
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} else { |
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$condition = $this->getOldPrimaryKey(true); |
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$lock = $this->optimisticLock(); |
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if ($lock !== null) { |
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if (!isset($values[$lock])) { |
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$values[$lock] = $this->$lock + 1; |
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} |
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$condition[$lock] = $this->$lock; |
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} |
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// We do not check the return value of updateAll() because it's possible |
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// that the UPDATE statement doesn't change anything and thus returns 0. |
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$rows = $this->updateAll($values, $condition); |
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|
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if ($lock !== null && !$rows) { |
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throw new StaleObjectException('The object being updated is outdated.'); |
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} |
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} |
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|
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foreach ($values as $name => $value) { |
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$this->setOldAttribute($name, $this->getAttribute($name)); |
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} |
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$this->afterSave(false); |
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return $rows; |
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} |
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|
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/** |
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* Deletes the index entry corresponding to this active record. |
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* |
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* This method performs the following steps in order: |
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* |
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* 1. call [[beforeDelete()]]. If the method returns false, it will skip the |
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* rest of the steps; |
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* 2. delete the record from the index; |
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* 3. call [[afterDelete()]]. |
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* |
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* In the above step 1 and 3, events named [[EVENT_BEFORE_DELETE]] and [[EVENT_AFTER_DELETE]] |
|
* will be raised by the corresponding methods. |
|
* |
|
* @return integer|boolean the number of rows deleted, or false if the deletion is unsuccessful for some reason. |
|
* Note that it is possible the number of rows deleted is 0, even though the deletion execution is successful. |
|
* @throws StaleObjectException if [[optimisticLock|optimistic locking]] is enabled and the data |
|
* being deleted is outdated. |
|
* @throws \Exception in case delete failed. |
|
*/ |
|
public function delete() |
|
{ |
|
$db = static::getDb(); |
|
$transaction = $this->isTransactional(self::OP_DELETE) && $db->getTransaction() === null ? $db->beginTransaction() : null; |
|
try { |
|
$result = false; |
|
if ($this->beforeDelete()) { |
|
// we do not check the return value of deleteAll() because it's possible |
|
// the record is already deleted in the database and thus the method will return 0 |
|
$condition = $this->getOldPrimaryKey(true); |
|
$lock = $this->optimisticLock(); |
|
if ($lock !== null) { |
|
$condition[$lock] = $this->$lock; |
|
} |
|
$result = $this->deleteAll($condition); |
|
if ($lock !== null && !$result) { |
|
throw new StaleObjectException('The object being deleted is outdated.'); |
|
} |
|
$this->setOldAttributes(null); |
|
$this->afterDelete(); |
|
} |
|
if ($transaction !== null) { |
|
if ($result === false) { |
|
$transaction->rollback(); |
|
} else { |
|
$transaction->commit(); |
|
} |
|
} |
|
} catch (\Exception $e) { |
|
if ($transaction !== null) { |
|
$transaction->rollback(); |
|
} |
|
throw $e; |
|
} |
|
return $result; |
|
} |
|
|
|
/** |
|
* Returns a value indicating whether the given active record is the same as the current one. |
|
* The comparison is made by comparing the index names and the primary key values of the two active records. |
|
* If one of the records [[isNewRecord|is new]] they are also considered not equal. |
|
* @param ActiveRecord $record record to compare to |
|
* @return boolean whether the two active records refer to the same row in the same index. |
|
*/ |
|
public function equals($record) |
|
{ |
|
if ($this->isNewRecord || $record->isNewRecord) { |
|
return false; |
|
} |
|
return $this->indexName() === $record->indexName() && $this->getPrimaryKey() === $record->getPrimaryKey(); |
|
} |
|
|
|
/** |
|
* Creates an active record object using a row of data. |
|
* This method is called by [[ActiveQuery]] to populate the query results |
|
* into Active Records. It is not meant to be used to create new records. |
|
* @param array $row attribute values (name => value) |
|
* @return ActiveRecord the newly created active record. |
|
*/ |
|
public static function create($row) |
|
{ |
|
$record = static::instantiate($row); |
|
$columns = static::getIndexSchema()->columns; |
|
foreach ($row as $name => $value) { |
|
if (isset($columns[$name])) { |
|
$column = $columns[$name]; |
|
if ($column->isMva) { |
|
$value = explode(',', $value); |
|
} |
|
$record->setAttribute($name, $value); |
|
} else { |
|
$record->$name = $value; |
|
} |
|
} |
|
$record->setOldAttributes($record->getAttributes()); |
|
$record->afterFind(); |
|
return $record; |
|
} |
|
|
|
/** |
|
* Returns a value indicating whether the specified operation is transactional in the current [[scenario]]. |
|
* @param integer $operation the operation to check. Possible values are [[OP_INSERT]], [[OP_UPDATE]] and [[OP_DELETE]]. |
|
* @return boolean whether the specified operation is transactional in the current [[scenario]]. |
|
*/ |
|
public function isTransactional($operation) |
|
{ |
|
$scenario = $this->getScenario(); |
|
$transactions = $this->transactions(); |
|
return isset($transactions[$scenario]) && ($transactions[$scenario] & $operation); |
|
} |
|
}
|
|
|