file.install

<?php


/**
 * @file
 * Install, update and uninstall functions for File module.
 */

/**
 * Implements hook_schema().
 */
function file_schema() {
    $schema['file_usage'] = [
        'description' => 'Track where a file is used.',
        'fields' => [
            'fid' => [
                'description' => 'File ID.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
            ],
            'module' => [
                'description' => 'The name of the module that is using the file.',
                'type' => 'varchar_ascii',
                'length' => DRUPAL_EXTENSION_NAME_MAX_LENGTH,
                'not null' => TRUE,
                'default' => '',
            ],
            'type' => [
                'description' => 'The name of the object type in which the file is used.',
                'type' => 'varchar_ascii',
                'length' => 64,
                'not null' => TRUE,
                'default' => '',
            ],
            'id' => [
                'description' => 'The primary key of the object using the file.',
                'type' => 'varchar_ascii',
                'length' => 64,
                'not null' => TRUE,
                'default' => 0,
            ],
            'count' => [
                'description' => 'The number of times this file is used by this object.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ],
        ],
        'primary key' => [
            'fid',
            'type',
            'id',
            'module',
        ],
        'indexes' => [
            'type_id' => [
                'type',
                'id',
            ],
            'fid_count' => [
                'fid',
                'count',
            ],
            'fid_module' => [
                'fid',
                'module',
            ],
        ],
    ];
    return $schema;
}

/**
 * Implements hook_requirements().
 *
 * Display information about getting upload progress bars working.
 */
function file_requirements($phase) {
    $requirements = [];
    // Check the server's ability to indicate upload progress.
    if ($phase == 'runtime') {
        $description = NULL;
        $implementation = file_progress_implementation();
        // The environment variable might be missing. Fallback to an empty string to
        // prevent passing NULL to preg_match(), a few lines later.
        $server_software = \Drupal::request()->server
            ->get('SERVER_SOFTWARE', '');
        // Test the web server identity.
        if (preg_match("/Nginx/i", $server_software)) {
            $is_nginx = TRUE;
            $is_apache = FALSE;
            $fastcgi = FALSE;
        }
        elseif (preg_match("/Apache/i", $server_software)) {
            $is_nginx = FALSE;
            $is_apache = TRUE;
            $fastcgi = strpos($server_software, 'mod_fastcgi') !== FALSE || strpos($server_software, 'mod_fcgi') !== FALSE;
        }
        else {
            $is_nginx = FALSE;
            $is_apache = FALSE;
            $fastcgi = FALSE;
        }
        if (!$is_apache && !$is_nginx) {
            $value = t('Not enabled');
            $description = t('Your server is not capable of displaying file upload progress. File upload progress requires an Apache server running PHP with mod_php or Nginx with PHP-FPM.');
        }
        elseif ($fastcgi) {
            $value = t('Not enabled');
            $description = t('Your server is not capable of displaying file upload progress. File upload progress requires PHP be run with mod_php or PHP-FPM and not as FastCGI.');
        }
        elseif (!$implementation) {
            $value = t('Not enabled');
            $description = t('Your server is capable of displaying file upload progress, but does not have the required libraries. It is recommended to install the <a href="http://pecl.php.net/package/uploadprogress">PECL uploadprogress library</a>.');
        }
        elseif ($implementation == 'uploadprogress') {
            $value = t('Enabled (<a href="http://pecl.php.net/package/uploadprogress">PECL uploadprogress</a>)');
        }
        $requirements['file_progress'] = [
            'title' => t('Upload progress'),
            'value' => $value,
            'description' => $description,
        ];
    }
    return $requirements;
}

/**
 * Implements hook_update_last_removed().
 */
function file_update_last_removed() {
    return 8700;
}