Агрегация в БД Mongo с использованием php ⇐ Php
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Anonymous
Агрегация в БД Mongo с использованием php
I'm trying to get the aggregate of a column in a document collection in mongo DB this is my code.
public function aggregate($columnName, $projection, $collectionName) { // database name $dbName = $this->dbHandler->inioluwa; // database collection $dbCollection = $dbName->$collectionName; // return the collection data return $dbCollection->aggregate([['$limit' => $projection], ['$group' => ['_id' => null, 'average' => ['$avg' => '$' . $columnName]]]]); } i was unable to get any result. after inserting the necessary parameters.
Источник: https://stackoverflow.com/questions/780 ... -using-php
I'm trying to get the aggregate of a column in a document collection in mongo DB this is my code.
public function aggregate($columnName, $projection, $collectionName) { // database name $dbName = $this->dbHandler->inioluwa; // database collection $dbCollection = $dbName->$collectionName; // return the collection data return $dbCollection->aggregate([['$limit' => $projection], ['$group' => ['_id' => null, 'average' => ['$avg' => '$' . $columnName]]]]); } i was unable to get any result. after inserting the necessary parameters.
Источник: https://stackoverflow.com/questions/780 ... -using-php
