Users.php

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<?php

namespace Elgg\Database\Seeds;

class Users extends Seed {

    public function seed() {

        $count_users = function () {
            return elgg_get_entities_from_metadata([
                'types' => 'user',
                'metadata_names' => '__faker',
                'count' => true,
            ]);
        };

        $count_friends = function ($user) {
            return elgg_get_entities_from_relationship([
                'types' => 'user',
                'relationship' => 'friend',
                'relationship_guid' => $user->guid,
                'inverse_relationship' => false,
                'metadata_names' => '__faker',
                'count' => true,
            ]);
        };

        $exclude = [];

        while ($count_users() < $this->limit) {
            $user = $this->getRandomUser($exclude);
            if (!$user) {
                $user = $this->createUser();
                if (!$user) {
                    continue;
                }
            }

            $exclude[] = $user->guid;

            // Friend the user other members
            // Create a friend access collection and add some random friends to it

            if ($count_friends($user)) {
                continue;
            }

            $collection_id = create_access_collection('Best Fake Friends Collection', $user->guid);
            if ($collection_id) {
                $this->log("Created new friend collection for user $user->name [collection_id: $collection_id]");
            }

            $friends_limit = $this->faker->numberBetween(5, 10);

            $friends_exclude = [$user->guid];
            while ($count_friends($user) < $friends_limit) {

                $friend = $this->getRandomUser($friends_exclude);
                if (!$friend) {
                    $this->createUser();
                    if (!$friend) {
                        continue;
                    }
                }

                $friends_exclude[] = $friend->guid;

                if ($user->addFriend($friend->guid, true)) {
                    $this->log("User $user->name [guid: $user->guid] friended user $friend->name [guid: $friend->guid]");
                    if ($this->faker->boolean() && $collection_id) {
                        add_user_to_access_collection($friend->guid, $collection_id);
                    }
                }
            }

        }

    }

    public function unseed() {

        $users = elgg_get_entities_from_metadata([
            'types' => 'user',
            'metadata_names' => '__faker',
            'limit' => 0,
            'batch' => true,
        ]);

        /* @var $users \ElggBatch */

        $users->setIncrementOffset(false);

        foreach ($users as $user) {
            if ($user->delete()) {
                $this->log("Deleted user $user->guid");
            } else {
                $this->log("Failed to delete user $user->guid");
            }
        }
    }

}