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<?php |
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/** |
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* Donut Social Network - Yet another experimental social network. |
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* Copyright (C) 2016-2017, Dejan Angelov <[email protected]> |
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* |
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* This file is part of Donut Social Network. |
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* |
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* Donut Social Network is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Donut Social Network is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with Donut Social Network. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* @package Donut Social Network |
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* @copyright Copyright (C) 2016-2017, Dejan Angelov <[email protected]> |
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* @license https://github.com/angelov/donut/blob/master/LICENSE |
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* @author Dejan Angelov <[email protected]> |
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*/ |
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namespace Angelov\Donut\Friendships\MutualFriendsResolver\Neo4jMutualFriendsResolver; |
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use GraphAware\Neo4j\Client\Client; |
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class IdsResolver |
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{ |
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private $client; |
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public function __construct(Client $client) |
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{ |
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$this->client = $client; |
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} |
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/** |
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* @return string[] array of ids of the mutual friends |
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*/ |
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public function findMutualFriends(string $firstId, string $secondId) : array |
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{ |
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$query = ' |
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MATCH |
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(first:User {id: {first}}), |
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(second:User {id: {second}}), |
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(y:User), |
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(first)-[:FRIEND]->(y), |
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(y)<-[:FRIEND]-(second) |
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RETURN |
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y.id |
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'; |
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$result = $this->client->run($query, [ |
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'first' => $firstId, |
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'second' => $secondId |
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]); |
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$ids = []; |
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foreach ($result->records() as $record) { |
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$ids[] = (string) $record->get('y.id'); |
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} |
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return $ids; |
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} |
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} |
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angelov /
donut
