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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Entity\Query\QueryAggregateInterface. | |
| */ | |
| namespace Drupal\Core\Entity\Query; | |
| /** | |
| * Defines a interface for aggregated entity queries. | |
| */ | |
| interface QueryAggregateInterface extends QueryInterface { | |
| /** | |
| * Specifies a field and a function to aggregate on. | |
| * | |
| * Available functions: SUM, AVG, MIN, MAX and COUNT. | |
| * | |
| * @todo What about GROUP_CONCAT support? | |
| * | |
| * @param string $field | |
| * The name of the field to aggregate by. | |
| * @param string $function | |
| * The aggregation function, for example COUNT or MIN. | |
| * @param string $langcode | |
| * (optional) The language code. | |
| * @param string $alias | |
| * (optional) The key that will be used on the resultset. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| */ | |
| public function aggregate($field, $function, $langcode = NULL, &$alias = NULL); | |
| /** | |
| * Specifies the field to group on. | |
| * | |
| * @param string $field | |
| * The name of the field to group by. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| */ | |
| public function groupBy($field); | |
| /** | |
| * Sets a condition for an aggregated value. | |
| * | |
| * @param string $field | |
| * The name of the field to aggregate by. | |
| * @param string $function | |
| * The aggregation function, for example COUNT or MIN. | |
| * @param mixed $value | |
| * The actual value of the field. | |
| * | |
| * @param $operator | |
| * Possible values: | |
| * - '=', '<>', '>', '>=', '<', '<=', 'STARTS_WITH', 'CONTAINS', | |
| * 'ENDS_WITH': These operators expect $value to be a literal of the | |
| * same type as the column. | |
| * - 'IN', 'NOT IN': These operators expect $value to be an array of | |
| * literals of the same type as the column. | |
| * - 'BETWEEN': This operator expects $value to be an array of two literals | |
| * of the same type as the column. | |
| * | |
| * @param string $langcode | |
| * (optional) The language code. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| * | |
| * @see \Drupal\Core\Entity\Query\QueryInterface::condition(). | |
| */ | |
| public function conditionAggregate($field, $function = NULL, $value = NULL, $operator = '=', $langcode = NULL); | |
| /** | |
| * Queries for the existence of a field. | |
| * | |
| * @param string $field | |
| * The name of the field. | |
| * @param string $function | |
| * The aggregate function. | |
| * @param $langcode | |
| * (optional) The language code. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| */ | |
| public function existsAggregate($field, $function, $langcode = NULL); | |
| /** | |
| * Queries for the nonexistence of a field. | |
| * | |
| * @param string $field. | |
| * The name of a field. | |
| * @param string $function | |
| * The aggregate function. | |
| * @param string $langcode | |
| * (optional) The language code. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| */ | |
| public function notExistsAggregate($field, $function, $langcode = NULL); | |
| /** | |
| * Creates an object holding a group of conditions. | |
| * | |
| * See andConditionAggregateGroup() and orConditionAggregateGroup() for more. | |
| * | |
| * @param string $conjunction | |
| * - AND (default): this is the equivalent of andConditionAggregateGroup(). | |
| * - OR: this is the equivalent of andConditionAggregateGroup(). | |
| * | |
| * @return ConditionInterface | |
| * An object holding a group of conditions. | |
| */ | |
| public function conditionAggregateGroupFactory($conjunction = 'AND'); | |
| /** | |
| * Sorts by an aggregated value. | |
| * | |
| * @param string $field | |
| * The name of a field. | |
| * @param string $function | |
| * The aggregate function. This is only marked optional for interface | |
| * compatibility, it is illegal to leave it out. | |
| * @param string $direction | |
| * The order of sorting, either DESC for descending of ASC for ascending. | |
| * @param string $langcode | |
| * (optional) The language code. | |
| * | |
| * @return \Drupal\Core\Entity\Query\QueryAggregateInterface | |
| * The called object. | |
| */ | |
| public function sortAggregate($field, $function, $direction = 'ASC', $langcode = NULL); | |
| /** | |
| * Executes the aggregate query. | |
| * | |
| * @return array | |
| * A list of result row arrays. Each result row contains the aggregate | |
| * results as keys and also the groupBy columns as keys: | |
| * @code | |
| * $result = $query | |
| * ->aggregate('nid', 'count') | |
| * ->condition('status', 1) | |
| * ->groupby('type') | |
| * ->executeAggregate(); | |
| * @endcode | |
| * Will return: | |
| * @code | |
| * $result[0] = array('count_nid' => 3, 'type' => 'page'); | |
| * $result[1] = array('count_nid' => 1, 'type' => 'poll'); | |
| * $result[2] = array('count_nid' => 4, 'type' => 'story'); | |
| * @endcode | |
| */ | |
| public function execute(); | |
| } |