class.ilUserCertificateTableProvider.php

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<?php
 
declare(strict_types=1);
 
class ilUserCertificateTableProvider
{
    public const TABLE_NAME = 'il_cert_user_cert';
 
    public function __construct(
        private readonly ilDBInterface $database,
        private readonly ilLogger $logger,
        private readonly string $defaultTitle
    ) {
    }
 
    public function fetchDataSet(int $userId, array $params, array $filter): array
    {
        $this->logger->debug(sprintf('START - Fetching all active certificates for user: "%s"', $userId));
        $additional_select = '';
 
        $sql = 'SELECT 
  ' . self::TABLE_NAME . '.id,
  ' . self::TABLE_NAME . '.obj_type,
  ' . self::TABLE_NAME . '.acquired_timestamp,
  ' . self::TABLE_NAME . '.tile_image_ident,
  ' . $additional_select . ' usr_data.firstname,
  usr_data.lastname,
  ' . self::TABLE_NAME . '.obj_id,
  (CASE
    WHEN (trans.title IS NOT NULL AND LENGTH(trans.title) > 0) THEN trans.title
    WHEN (object_data.title IS NOT NULL AND LENGTH(object_data.title) > 0) THEN object_data.title 
    WHEN (object_data_del.title IS NOT NULL AND LENGTH(object_data_del.title) > 0) THEN object_data_del.title 
    ELSE ' . $this->database->quote($this->defaultTitle, 'text') . '
    END
  ) as title,
  (CASE
    WHEN (trans.description IS NOT NULL AND LENGTH(trans.description) > 0) THEN trans.description
    WHEN (object_data.description IS NOT NULL AND LENGTH(object_data.description) > 0) THEN object_data.description 
    WHEN (object_data_del.description IS NOT NULL AND LENGTH(object_data_del.description) > 0) THEN object_data_del.description 
    ELSE ""
    END
  ) as description
FROM ' . self::TABLE_NAME . '
LEFT JOIN object_data ON object_data.obj_id = ' . self::TABLE_NAME . '.obj_id
LEFT JOIN object_translation trans ON trans.obj_id = object_data.obj_id
AND trans.lang_code = ' . $this->database->quote($params['language'], 'text') . '
LEFT JOIN object_data_del ON object_data_del.obj_id = ' . self::TABLE_NAME . '.obj_id
LEFT JOIN usr_data ON usr_data.usr_id = ' . self::TABLE_NAME . '.usr_id
WHERE ' . self::TABLE_NAME . '.usr_id = ' . $this->database->quote($userId, 'integer') . ' AND currently_active = 1';
 
        if ([] !== $params) {
            $sql .= $this->getOrderByPart($params, $filter);
        }
 
        if (isset($params['limit'])) {
            if (!is_numeric($params['limit'])) {
                throw new InvalidArgumentException('Please provide a valid numerical limit.');
            }
 
            if (!isset($params['offset'])) {
                $params['offset'] = 0;
            } elseif (!is_numeric($params['offset'])) {
                throw new InvalidArgumentException('Please provide a valid numerical offset.');
            }
 
            $this->database->setLimit($params['limit'], $params['offset']);
        }
 
        $query = $this->database->query($sql);
 
        $data = [
            'items' => [],
        ];
 
        while ($row = $this->database->fetchAssoc($query)) {
            $title = $row['title'];
 
            $data['items'][] = [
                'id' => (int) $row['id'],
                'title' => $title,
                'obj_id' => (int) $row['obj_id'],
                'obj_type' => $row['obj_type'],
                'date' => (int) $row['acquired_timestamp'],
                'tile_image_ident' => $row['tile_image_ident'],
                'description' => $row['description'],
                'firstname' => $row['firstname'],
                'lastname' => $row['lastname'],
            ];
        }
 
        if (isset($params['limit'])) {
            $cnt_sql = '
                                SELECT COUNT(*) cnt
                                FROM ' . self::TABLE_NAME . '
                                WHERE usr_id = ' . $this->database->quote($userId, 'integer') . ' AND currently_active = 1';
 
            $row_cnt = $this->database->fetchAssoc($this->database->query($cnt_sql));
 
            $data['cnt'] = (int) $row_cnt['cnt'];
 
            $this->logger->debug(
                sprintf(
                    'All active certificates for user: "%s" total: "%s"',
                    $userId,
                    $data['cnt']
                )
            );
        } else {
            $data['cnt'] = count($data['items']);
        }
 
        $this->logger->debug(sprintf('END - Actual results: "%s"', json_encode($data, JSON_THROW_ON_ERROR)));
 
        return $data;
    }
 
    protected function getOrderByPart(array $params, array $filter): string
    {
        if (isset($params['order_field'])) {
            if (!is_string($params['order_field'])) {
                throw new InvalidArgumentException('Please provide a valid order field.');
            }
 
            if (!in_array($params['order_field'], ['date', 'id', 'title'])) {
                throw new InvalidArgumentException('Please provide a valid order field.');
            }
 
            if ($params['order_field'] === 'date') {
                $params['order_field'] = 'acquired_timestamp';
            }
 
            if (!isset($params['order_direction'])) {
                $params['order_direction'] = 'ASC';
            } elseif (!in_array(strtolower($params['order_direction']), ['asc', 'desc'])) {
                throw new InvalidArgumentException('Please provide a valid order direction.');
            }
 
            return ' ORDER BY ' . $params['order_field'] . ' ' . $params['order_direction'];
        }
 
        return '';
    }
}