file.install | Documentation

Install, update and uninstall functions for File module.
File

core/modules/file/file.install
View source
<?php
/**
 * @file
 * Install, update and uninstall functions for File module.
 */

/**
 * Implements hook_field_schema().
 */
function file_field_schema($field) {
  return array(
    'columns' => array(
      'fid' => array(
        'description' => 'The {file_managed}.fid being referenced in this field.',
        'type' => 'int',
        'not null' => FALSE,
        'unsigned' => TRUE,
      ),
      'display' => array(
        'description' => 'Flag to control whether this file should be displayed when viewing content.',
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 1,
      ),
      'description' => array(
        'description' => 'A description of the file.',
        'type' => 'text',
        'not null' => FALSE,
      ),
    ),
    'indexes' => array(
      'fid' => array('fid'),
    ),
    'foreign keys' => array(
      'fid' => array(
        'table' => 'file_managed',
        'columns' => array('fid' => 'fid'),
      ),
    ),
  );
}

/**
 * Implements hook_schema().
 */
function file_schema() {
  $schema['file_managed'] = array(
    'description' => 'Stores information for uploaded files.',
    'fields' => array(
      'fid' => array(
        'description' => 'File ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'uid' => array(
        'description' => 'The {users}.uid of the user who is associated with the file.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'filename' => array(
        'description' => 'Name of the file with no path components. This may differ from the basename of the URI if the file is renamed to avoid overwriting an existing file.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'uri' => array(
        'description' => 'The URI to access the file (either local or remote).',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'filemime' => array(
        'description' => "The file's MIME type.",
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'filesize' => array(
        'description' => 'The size of the file in bytes.',
        'type' => 'int',
        'size' => 'big',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'status' => array(
        'description' => 'A field indicating the status of the file. Two status are defined in core: temporary (0) and permanent (1). Temporary files older than BACKDROP_MAXIMUM_TEMP_FILE_AGE will be removed during a cron run.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'size' => 'tiny',
      ),
      'timestamp' => array(
        'description' => 'UNIX timestamp for when the file was added.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'type' => array(
        'description' => 'The type of this file.',
        'type' => 'varchar',
        'length' => 50,
        'not null' => TRUE,
        // If the FILE_TYPE_NONE constant ever changes, then change the value here
        // too, and add an update function to deal with existing records. The
        // constant isn't used here, because there may be cases where this function
        // runs without the module file loaded.
        'default' => 'undefined',
      ),
    ),
    'indexes' => array(
      'uid' => array('uid'),
      'status' => array('status'),
      'timestamp' => array('timestamp'),
      'file_type' => array('type'),
    ),
    'unique keys' => array(
      'uri' => array('uri'),
    ),
    'primary key' => array('fid'),
    'foreign keys' => array(
      'file_owner' => array(
        'table' => 'users',
        'columns' => array('uid' => 'uid'),
      ),
    ),
  );

  $schema['file_usage'] = array(
    'description' => 'Track where a file is used.',
    'fields' => array(
      'fid' => array(
        'description' => 'File ID.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'module' => array(
        'description' => 'The name of the module that is using the file.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'type' => array(
        'description' => 'The name of the object type in which the file is used.',
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
      ),
      'id' => array(
        'description' => 'The primary key of the object using the file.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'count' => array(
        'description' => 'The number of times this file is used by this object.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array('fid', 'type', 'id', 'module'),
    'indexes' => array(
      'type_id' => array('type', 'id'),
      'fid_count' => array('fid', 'count'),
      'fid_module' => array('fid', 'module'),
    ),
  );

  $schema['file_metadata'] = array(
    'description' => 'Cache image metadata.',
    'fields' => array(
      'fid' => array(
        'description' => 'The {file_managed}.fid of the metadata.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'name' => array(
        'description' => "The name of the metadata (e.g. 'width').",
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'value' => array(
        'description' => "The value of the metadata (e.g. '200').",
        'type' => 'blob',
        'not null' => FALSE,
        'size' => 'big',
        'serialize' => TRUE,
      ),
    ),
    'primary key' => array('fid', 'name'),
    'foreign keys' => array(
      'file_managed' => array(
        'table' => 'file_managed',
        'columns' => array('fid' => 'fid'),
      ),
    ),
  );

  $cache_schema = backdrop_get_schema_unprocessed('system', 'cache');
  $schema['cache_entity_file'] = $cache_schema;
  $schema['cache_entity_file']['description'] = "Cache table used to store File entity records.";

  return $schema;
}

/**
 * Implements hook_requirements().
 *
 * Display information about getting upload progress bars working.
 */
function file_requirements($phase) {
  $requirements = array();

  if ($phase == 'runtime') {
    // Check the server's ability to indicate upload progress.
    $description = NULL;
    $implementation = file_progress_implementation();
    $server_software = $_SERVER['SERVER_SOFTWARE'];

    // Test the web server identity.
    $is_nginx = backdrop_is_nginx();
    $is_apache = backdrop_is_apache();
    $fastcgi = FALSE;
    if ($is_apache) {
      $fastcgi = strpos($server_software, 'mod_fastcgi') !== FALSE || strpos($server_software, 'mod_fcgi') !== FALSE;
    }

    $description = NULL;
    if (!$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.');
      $severity = REQUIREMENT_INFO;
    }
    elseif ($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 in Apache or with PHP-FPM and not as FastCGI.');
      $severity = REQUIREMENT_INFO;
    }
    elseif ($implementation == 'apc') {
      $value = t('Enabled (<a href="http://php.net/manual/en/apc.configuration.php#ini.apc.rfc1867">APC RFC1867</a>)');
      $description = t('Your server is capable of displaying file upload progress using APC RFC1867. Note that only one upload at a time is supported. It is recommended to use the <a href="http://pecl.php.net/package/uploadprogress">PECL uploadprogress library</a> if possible.');
      $severity = REQUIREMENT_OK;
    }
    elseif ($implementation == 'uploadprogress') {
      $value = t('Enabled (<a href="http://pecl.php.net/package/uploadprogress">PECL uploadprogress</a>)');
      $severity = REQUIREMENT_OK;
    }
    elseif ($implementation == 'client') {
      $value = t('Client-side upload progress enabled');
      $severity = REQUIREMENT_OK;
    }
    $requirements['file_progress'] = array(
      'title' => t('Upload progress'),
      'value' => $value,
      'severity' => $severity,
      'description' => $description,
    );

    // Show an error if files need to be classified.
    $file_needs_classification = file_needs_type_classification();
    if ($file_needs_classification) {
      $requirements['file_needs_classification'] = array(
        'title' => t('File Type Classification'),
        'value' => t('File types need to be classified. (<a href="!path">Classify file types</a>).', array('!path' => url('admin/structure/file-types/classify'))),
        'description' => t('This site may not work properly if file types are not classified. Classifying file types may take some time if there are a lot of files without an assigned file type.'),
        'severity' => REQUIREMENT_ERROR,
      );
    }
  }
  return $requirements;
}

/**
 * Implements hook_update_dependencies().
 */
function file_update_dependencies() {
  // Ensure that the text filters have been converted to config prior to
  // updating the "No results" format on the file admin View.
  $dependencies['file'][1009] = array(
    'system' => 1028,
  );
  return $dependencies;
}

/**
 * Add a view for managing files.
 */
function file_update_1000() {
  $view_config = array(
    'name' => 'file_admin',
    'description' => 'Administrative listing for managing files.',
    'module' => 'file',
    'storage' => 4,
    'tag' => 'default',
    'disabled' => FALSE,
    'base_table' => 'file_managed',
    'human_name' => 'Administer files',
    'core' => '1.6',
    'display' => array(
      'default' => array(
        'display_title' => 'Default',
        'display_plugin' => 'default',
        'display_options' => array(
          'query' => array(
            'type' => 'views_query',
            'options' =>  array(),
          ),
          'access' => array(
            'type' => 'perm',
            'perm' => 'access file overview',
          ),
          'cache' => array(
            'type' => 'none',
          ),
          'exposed_form' => array(
            'type' => 'basic',
            'options' => array(
              'submit_button' => 'Filter',
              'reset_button' => 0,
              'reset_button_label' => 'Reset',
              'exposed_sorts_label' => 'Sort by',
              'expose_sort_order' => 1,
              'sort_asc_label' => 'Asc',
              'sort_desc_label' => 'Desc',
              'autosubmit' => 0,
              'autosubmit_hide' => 1,
            ),
          ),
          'pager' => array(
            'type' => 'full',
            'options' => array(
              'items_per_page' => '50',
              'offset' => '0',
              'id' => '0',
              'total_pages' => '',
              'quantity' => '9',
              'tags' => array(
                'first' => '« first',
                'previous' => '‹ previous',
                'next' => 'next ›',
                'last' => 'last »',
              ),
              'expose' => array(
                'items_per_page' => 0,
                'items_per_page_label' => 'Items per page',
                'items_per_page_options' => '5, 10, 20, 40, 60',
                'items_per_page_options_all' => 0,
                'items_per_page_options_all_label' => '- All -',
                'offset' => 0,
                'offset_label' => 'Offset',
              ),
            ),
          ),
          'style_plugin' => 'table',
          'row_plugin' => 'fields',
          'fields' => array(
            'bulk_form' => array(
              'id' => 'bulk_form',
              'table' => 'file_managed',
              'field' => 'bulk_form',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Operations',
              'element_label_colon' => 0,
              'element_default_classes' => 0,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'include_exclude' => 'exclude',
              'selected_actions' =>  array(),
            ),
            'filename' => array(
              'id' => 'filename',
              'table' => 'file_managed',
              'field' => 'filename',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'link_to_file' => 1,
            ),
            'filemime' => array(
              'id' => 'filemime',
              'table' => 'file_managed',
              'field' => 'filemime',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Type',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 1,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'link_to_file' => 0,
              'filemime_image' => 0,
            ),
            'timestamp' => array(
              'id' => 'timestamp',
              'table' => 'file_managed',
              'field' => 'timestamp',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Uploaded',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 1,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'date_format' => 'short',
              'custom_date_format' => '',
              'timezone' => '',
            ),
            'filesize' => array(
              'id' => 'filesize',
              'table' => 'file_managed',
              'field' => 'filesize',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Size',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 1,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'file_size_display' => 'formatted',
            ),
            'status' => array(
              'id' => 'status',
              'table' => 'file_managed',
              'field' => 'status',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Status',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 1,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
            ),
            'count' => array(
              'id' => 'count',
              'table' => 'file_usage',
              'field' => 'count',
              'relationship' => 'none',
              'group_type' => 'sum',
              'ui_name' => '',
              'label' => 'Use count',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 1,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'set_precision' => false,
              'precision' => 0,
              'decimal' => '.',
              'separator' => ',',
            ),
            'delete' => array(
              'id' => 'delete',
              'table' => 'file_managed',
              'field' => 'delete',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => '',
              'exclude' => 1,
              'element_label_colon' => 0,
              'element_default_classes' => 0,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'text' => '',
            ),
            'dropbutton' => array(
              'id' => 'dropbutton',
              'table' => 'views',
              'field' => 'dropbutton',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => 'Operations',
              'exclude' => 0,
              'element_label_colon' => 0,
              'element_default_classes' => 0,
              'empty' => '',
              'hide_empty' => 0,
              'empty_zero' => 0,
              'hide_alter_empty' => 1,
              'fields' => array(
                'delete' => 'delete',
                'bulk_form' => 0,
                'filename' => 0,
                'filemime' => 0,
                'timestamp' => 0,
                'filesize' => 0,
                'status' => 0,
              ),
              'destination' => 1,
            ),
          ),
          'filters' => array(
            'filename' => array(
              'id' => 'filename',
              'table' => 'file_managed',
              'field' => 'filename',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'operator' => 'contains',
              'value' => '',
              'group' => '1',
              'exposed' => true,
              'expose' => array(
                'operator_id' => 'filename_op',
                'label' => 'File name contains',
                'description' => '',
                'use_operator' => 0,
                'operator' => 'filename_op',
                'identifier' => 'filename',
                'required' => 0,
                'remember' => 0,
                'multiple' => false,
                'remember_roles' => array(
                  'authenticated' => 'authenticated',
                  'anonymous' => 0,
                  'administrator' => 0,
                ),
              ),
              'is_grouped' => false,
              'group_info' => array(
                'label' => '',
                'description' => '',
                'identifier' => '',
                'optional' => true,
                'widget' => 'select',
                'multiple' => false,
                'remember' => 0,
                'default_group' => 'All',
                'default_group_multiple' =>  array(),
                'group_items' =>  array(),
              ),
            ),
          ),
          'sorts' =>  array(),
          'title' => 'Content',
          'empty' => array(
            'area' => array(
              'id' => 'area',
              'table' => 'views',
              'field' => 'area',
              'relationship' => 'none',
              'group_type' => 'group',
              'ui_name' => '',
              'label' => '',
              'empty' => true,
              'content' => '<p>No files available.</p>\n',
              'format' => 'filtered_html',
              'tokenize' => 0,
            ),
          ),
          'group_by' => 1,
          'style_options' => array(
            'grouping' =>  array(),
            'row_class' => '',
            'default_row_class' => 1,
            'row_class_special' => 1,
            'override' => 1,
            'sticky' => 0,
            'caption' => '',
            'summary' => '',
            'columns' => array(
              'bulk_form' => 'bulk_form',
              'filename' => 'filename',
              'filemime' => 'filemime',
              'timestamp' => 'timestamp',
              'filesize' => 'filesize',
              'status' => 'status',
              'count' => 'count',
              'delete' => 'delete',
              'dropbutton' => 'dropbutton',
            ),
            'info' => array(
              'bulk_form' => array(
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'filename' => array(
                'sortable' => 1,
                'default_sort_order' => 'asc',
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'filemime' => array(
                'sortable' => 0,
                'default_sort_order' => 'asc',
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'timestamp' => array(
                'sortable' => 1,
                'default_sort_order' => 'desc',
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'filesize' => array(
                'sortable' => 1,
                'default_sort_order' => 'desc',
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'status' => array(
                'sortable' => 1,
                'default_sort_order' => 'asc',
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'count' => array(
                'sortable' => 1,
                'default_sort_order' => 'desc',
                'align' => 'views-align-center',
                'separator' => '',
                'empty_column' => 0,
              ),
              'delete' => array(
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
              'dropbutton' => array(
                'align' => '',
                'separator' => '',
                'empty_column' => 0,
              ),
            ),
            'default' => 'timestamp',
            'empty_table' => 1,
          ),
        ),
      ),
      'page' => array(
        'display_title' => 'Page',
        'display_plugin' => 'page',
        'display_options' => array(
          'query' => array(
            'type' => 'views_query',
            'options' =>  array(),
          ),
          'path' => 'admin/content/files',
          'menu' => array(
            'type' => 'tab',
            'title' => 'Manage files',
            'description' => 'Find and manage files.',
            'name' => 'management',
            'weight' => '0',
            'context' => 0,
            'context_only_inline' => 0,
          ),
        ),
      ),
    ),
  );
  $config = config('views.view.file_admin');
  if ($config->isNew()) {
    $config->setData($view_config);
    $config->save();
  }
}

/**
 * Add a Manage file link to the admin files view.
 */
function file_update_1001() {
  $config = config('views.view.file_admin');
  if ($config) {
    // Get all the fields.
    $fields = $config->get('display.default.display_options.fields');

    // If the file field is not already there...
    if (!array_key_exists('edit', $fields)) {

      // Remove the delete and drop-button fields.
      $delete = $fields['delete'];
      unset($fields['delete']);
      $dropbutton = $fields['dropbutton'];
      unset($fields['dropbutton']);

      // Add the Manage file field.
      $fields['edit'] = array(
        'id' => 'edit',
        'table' => 'file_managed',
        'field' => 'edit',
        'relationship' => 'none',
        'group_type' => 'group',
        'ui_name' => '',
        'label' => 'Manage link',
        'exclude' => TRUE,
        'alter' => array(),
        'element_type' => '',
        'element_class' => '',
        'element_label_type' => '',
        'element_label_class' => '',
        'element_label_colon' => TRUE,
        'element_wrapper_type' => '',
        'element_wrapper_class' => '',
        'element_default_classes' => TRUE,
        'empty' => '',
        'hide_empty' => 0,
        'empty_zero' => 0,
        'hide_alter_empty' => TRUE,
        'text' => 'Manage',
      );

      // Put delete field back, after edit.
      $fields['delete'] = $delete;

      // Add the Manage file field to the drop-button set.
      $dropbutton['fields'] = array('edit' => 'edit') + $dropbutton['fields'];

      // Add the dropbutton field back to the view.
      $fields['dropbutton'] = $dropbutton;

      // Save the view.
      $config->set('display.default.display_options.fields', $fields);
      $config->save();
    }
  }
}

/**
 * Switch the 'edit files' permission to 'manage files'.
 */
function file_update_1002() {
  $roles = user_roles(FALSE, 'edit files');
  foreach ($roles as $role_name => $role_label) {
    $config = config('user.role.' . $role_name);
    $permissions = $config->get('permissions');
    if ($key = array_search('edit files', $permissions)) {
      // Add the new permission.
      $permissions[] = 'manage files';
      // Remove the old permission.
      unset($permissions[$key]);
      // Save the role.
      $config->set('permissions', $permissions);
      $config->save();
    }
  }
}

/**
 * Add a type column to the file_managed table, and add a file_metadata table.
 */
function file_update_1003() {
  $schema = array();
  $schema['file_metadata'] = array(
    'description' => 'Cache images dimensions.',
    'fields' => array(
      'fid' => array(
        'description' => 'The {file_managed}.fid of the metadata.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'name' => array(
        'description' => "The name of the metadata (e.g. 'width').",
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'value' => array(
        'description' => "The value of the metadata (e.g. '200px').",
        'type' => 'blob',
        'not null' => FALSE,
        'size' => 'big',
        'serialize' => TRUE,
      ),
    ),
    'primary key' => array('fid', 'name'),
    'foreign keys' => array(
      'file_managed' => array(
        'table' => 'file_managed',
        'columns' => array('fid' => 'fid'),
      ),
    ),
  );
  $spec = array(
    'description' => 'The type of this file.',
    'type' => 'varchar',
    'length' => 50,
    'not null' => TRUE,
    'default' => 'undefined',
  );
  $indexes_new = array(
    'indexes' => array(
      'file_type' => array('type'),
    ),
  );

  // If another module (e.g., Media or File Entity) had added a
  // {file_managed}.type field, then change it to the expected specification.
  if (db_field_exists('file_managed', 'type')) {
    // db_change_field() will fail if any records have type=NULL, so update
    // them to the new default value.
    db_update('file_managed')->fields(array('type' => 'undefined'))->isNull('type')->execute();

    // Indexes using a field being changed must be dropped prior to calling
    // db_change_field().
    if (db_index_exists('file_managed', 'file_type')) {
      db_drop_index('file_managed', 'file_type');
    }

    // Since the database API doesn't provide a way to drop indexes without
    // knowing what the old indexes are, it is the responsibility of any module
    // that adds them to drop them prior to running this update..
    db_change_field('file_managed', 'type', 'type', $spec, $indexes_new);
  }

  // Otherwise, add the field.
  else {
    db_add_field('file_managed', 'type', $spec, $indexes_new);
  }

  // Create the {file_metadata} database table.
  if (!db_table_exists('file_metadata')) {
    db_create_table('file_metadata', $schema['file_metadata']);
  }

  // Set permission to view files.
  $roles = user_roles();
  foreach ($roles as $rid => $role) {
    user_role_grant_permissions($rid, array('view files'));
  }

  // Set flag if file types need to be classified.
  $result = db_query('SELECT fid FROM {file_managed}');
  if ($result->rowCount()) {
    file_needs_type_classification(TRUE);
  }
}

/**
 * Convert file_entity variables to config.
 */
function file_update_1004() {

  // Convert variables to config.
  $config = config('file.settings');
  $config->set('max_filesize', update_variable_get('file_entity_max_filesize', ''));
  $config->set('default_allowed_extensions', update_variable_get('file_entity_default_allowed_extensions', 'jpg jpeg gif png txt doc docx xls xlsx pdf ppt pptx pps ppsx odt ods odp mp3 mov mp4 m4a m4v mpeg avi ogg oga ogv weba webp webm'));
  $config->set('default_file_directory', update_variable_get('file_entity_default_file_directory', ''));
  $config->set('allow_insecure_download', update_variable_get('file_entity_allow_insecure_download', FALSE));
  $config->set('file_upload_wizard_skip_file_type', update_variable_get('file_entity_file_upload_wizard_skip_file_type', FALSE));
  $config->set('file_upload_wizard_skip_scheme', update_variable_get('file_entity_file_upload_wizard_skip_scheme', FALSE));
  $config->set('file_upload_wizard_skip_fields', update_variable_get('file_entity_file_upload_wizard_skip_fields', FALSE));
  $config->set('protect_repeated_render', update_variable_get('file_entity_protect_repeated_render', TRUE));
  $config->save();

  // Remove converted variables.
  update_variable_del('file_entity_max_filesize');
  update_variable_del('file_entity_default_allowed_extensions');
  update_variable_del('file_entity_default_file_directory');
  update_variable_del('file_entity_allow_insecure_download');
  update_variable_del('file_entity_file_upload_wizard_skip_file_type');
  update_variable_del('file_entity_file_upload_wizard_skip_scheme');
  update_variable_del('file_entity_file_upload_wizard_skip_fields');
  update_variable_del('file_entity_protect_repeated_render');

  // Delete unused variables.
  update_variable_del('file_entity_alt');
  update_variable_del('file_entity_title');
}

/**
 * Add the default file types and convert custom or modified file types from Drupal 7 file_entity.
 */
function file_update_1005() {
  $default_file_types = array(
    'audio' => array(
      'type' => 'audio',
      'name' => 'Audio',
      'description' => 'An audio file is a sound recording.',
      'mimetypes' => array(
        'audio/*'
      ),
      'disabled' => FALSE,
      'storage' => 4,
      'module' => 'file'
    ),
    'document' => array(
      'type' => 'document',
      'name' => 'Document',
      'description' => 'A document file is written information.',
      'mimetypes' => array(
          'text/plain',
          // cspell:disable
          'application/msword',
          'application/vnd.ms-excel',
          'application/pdf',
          'application/vnd.ms-powerpoint',
          'application/vnd.oasis.opendocument.text',
          'application/vnd.oasis.opendocument.spreadsheet',
          'application/vnd.oasis.opendocument.presentation',
          'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
          'application/vnd.openxmlformats-officedocument.presentationml.presentation',
          'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
          // cspell:enable
      ),
      'disabled' => FALSE,
      'storage' => 4,
      'module' => 'file',
    ),
    'image' => array(
      'type' => 'image',
      'name' => 'Image',
      'description' => 'An image file is a still visual.',
      'mimetypes' => array(
          'image/*',
      ),
      'disabled' => FALSE,
      'storage' => 4,
      'module' => 'file',
    ),
    'video' => array(
      'type' => 'video',
      'name' => 'Video',
      'description' => 'A video file is a moving visual recording.',
      'mimetypes' => array(
          'video/*',
      ),
      'disabled' => FALSE,
      'storage' => 4,
      'module' => 'file',
    ),
  );
  foreach ($default_file_types as $machine => $type) {
    $config = config('file.type.' . $machine);
    if ($config->isNew()) {
      $config->setData($type);
      $config->save();
    }
  }

  // Check to see if there were file types in a D7 db.
  if (db_table_exists('file_type')) {
    $result = db_query("SELECT type, label, description, mimetypes FROM {file_type}")->fetchAll();
    foreach ($result as $record) {
      $mimetypes = unserialize($record->mimetypes);
      $storage = FILE_TYPE_STORAGE_NORMAL;

      if (file_type_load($record->type)) {
        $storage = FILE_TYPE_STORAGE_OVERRIDE;
      }

      $config = config('file.type.' . $record->type);
      $config->set('module', 'file');
      $config->set('type', $record->type);
      $config->set('name', $record->label);
      $config->set('description', $record->description);
      $config->set('mimetypes', $mimetypes);
      $config->set('storage', $storage);
      $config->save();
    }

    // Delete the file type table.
    db_drop_table('file_type');
  }
}

/**
 * Add the default file display settings and convert saved file display settings from Drupal 7 file_entity.
 */
function file_update_1006() {
  $default_file_displays = array(
    'audio' => array(
      'type' => 'audio',
      'default' => array(
        'formatter' => 'file_field_file_audio',
        'settings' => array(
          'file_field_file_audio' => array(
            'controls' => 1,
            'autoplay' => 0,
            'loop' => 0,
            'preload' => '',
            'multiple_file_behavior' => 'tags',
          ),
        ),
      ),
      'preview' => array(
        'formatter' => 'file_field_file_audio',
        'settings' => array(
          'file_field_file_audio' => array(
            'controls' => 1,
            'autoplay' => 0,
            'loop' => 0,
            'preload' => '',
            'multiple_file_behavior' => 'tags',
          ),
        ),
      ),
    ),
    'document' => array(
      'type' => 'document',
      'default' => array(
        'formatter' => 'file_field_file_download_link',
        'settings' => array(
          'file_field_file_download_link' => array(
            'text' => 'Download [file:name]',
          ),
        ),
      ),
      'preview' => array(
        'formatter' => 'file_field_file_download_link',
        'settings' => array(
          'file_field_file_download_link' => array(
            'text' => 'Download [file:name]',
          ),
        ),
      ),
    ),
    'image' => array(
      'type' => 'image',
      'default' => array(
        'formatter' => 'file_field_image',
        'settings' => array(
          'file_field_image' => array(
            'image_style' => '',
            'image_link' => '',
            'image_float' => '',
          ),
        ),
      ),
      'preview' => array(
        'formatter' => 'file_field_image',
        'settings' => array(
          'file_field_image' => array(
            'image_style' => 'thumbnail',
            'image_link' => '',
            'image_float' => '',
          ),
        ),
      ),
    ),
    'video' => array(
      'type' => 'video',
      'default' => array(
        'formatter' => 'file_field_file_video',
        'settings' => array(
          'file_field_file_video' => array(
            'controls' => 1,
            'autoplay' => 0,
            'loop' => 0,
            'muted' => 0,
            'width' => '',
            'height' => '',
            'preload' => '',
            'multiple_file_behavior' => 'tags',
          ),
        ),
      ),
      'preview' => array(
        'formatter' => 'file_field_file_video',
        'settings' => array(
          'file_field_file_video' => array(
            'controls' => 1,
            'autoplay' => 0,
            'loop' => 0,
            'muted' => 0,
            'width' => '',
            'height' => '',
            'preload' => '',
            'multiple_file_behavior' => 'tags',
          ),
        ),
      ),
    ),
  );
  foreach ($default_file_displays as $machine => $display) {
    $config = config('file_display.' . $machine);
    if ($config->isNew()) {
      $config->setData($display);
      $config->save();
    }
  }

  if (db_table_exists('file_display')) {
    $types = array();
    $formatter_weights = array();
    $result = db_query("SELECT name, weight, settings FROM {file_display} WHERE status = 1")->fetchAll();
    foreach ($result as $record) {
      $name_parts = explode('__', $record->name);
      $filetype = $name_parts[0];
      $view_mode = $name_parts[1];
      $formatter = $name_parts[2];

      $settings = unserialize($record->settings);
      $types[$filetype][$view_mode]['settings'][$formatter] = $settings;

      $formatter_weights[$filetype][$view_mode][$formatter] = $record->weight;
    }

    foreach ($types as $filetype => $view_modes) {
      $config = config('file_display.' . $filetype);
      $config->set('type', $filetype);

      foreach ($view_modes as $name => $settings) {
        // Pick one formatter for each view mode. Select by lowest weight.
        $weight_formatters = array_flip($formatter_weights[$filetype][$name]);
        ksort($weight_formatters);
        $formatter = reset($weight_formatters);

        $view_mode_settings = array(
          'formatter' => $formatter,
          'settings' => $settings['settings'],
        );
        $config->set($name, $view_mode_settings);
      }

      $config->save();
    }

    // Delete the file type table.
    db_drop_table('file_display');
  }
}

/**
 * Grant the admin role permission to manage files and file types.
 */
function file_update_1007() {
  $admin_role = config_get('system.core', 'user_admin_role');

  $config = config('user.role.' . $admin_role);
  $permissions = $config->get('permissions');
  if ($permissions) {
    // Add the new permissions.
    $new_permissions = array(
      'bypass file access',
      'administer file types',
      'create files',
      'view own private files',
      'view own files',
      'view private files',
      'view files',
    );
    // Permissions for each file type.
    $config_file_names = config_get_names_with_prefix('file.type.');
    foreach ($config_file_names as $config_file_name) {
      $file_type = str_replace('file.type.', '', $config_file_name);
      $new_permissions[] = "edit own $file_type files";
      $new_permissions[] = "edit any $file_type files";
      $new_permissions[] = "delete own $file_type files";
      $new_permissions[] = "delete any $file_type files";
      $new_permissions[] = "download own $file_type files";
      $new_permissions[] = "download any $file_type files";
    }
    foreach ($new_permissions as $new_permission) {
      if (!in_array($new_permission, $permissions)) {
        $permissions[] = $new_permission;
      }
    }

    // Save the role.
    $config->set('permissions', $permissions);
    $config->save();
  }
}

/**
 * Creates the table to enable caching of Comment entities.
 */
function file_update_1008() {
  $table = backdrop_get_schema_unprocessed('system', 'cache');
  $table['description'] = "Cache table used to store File entity records.";
  if (db_table_exists('cache_entity_file')) {
    db_drop_table('cache_entity_file');
  }
  db_create_table('cache_entity_file', $table);
}

/**
 * Remove the file_type_determine queue.
 */
function file_update_1009() {
  $queue = BackdropQueue::get('file_type_determine');
  if ($queue->numberOfItems() > 0) {
    file_needs_type_classification(TRUE);
  }
  $queue->deleteQueue();
}

/**
 * Ensures that the "no results" text in 'file_admin' view has a valid format.
 */
function file_update_1010() {
  // Back in file_update_1000() we created this view containing 'filtered_html'
  // as the "no results" text format, but if we were upgrading from a site that
  // didn't contain that format, it results in an error. Here we ensure that the
  // format for that text is a valid format and if it isn't, use the fallback
  // format. Check the format for all displays, in case the user has modified
  // the page from the default.
  $config = config('views.view.file_admin');
  $displays = $config->get('display');
  if (!empty($displays)) {
    $filter_format_configs = config_get_names_with_prefix('filter.format.');
    foreach ($displays as &$display) {
      if (isset($display['display_options']['empty']['area']['format'])) {
        $format = $display['display_options']['empty']['area']['format'];
        if (in_array('filter.format.' . $format, $filter_format_configs)) {
          continue;
        }
        $display['display_options']['empty']['area']['format'] = filter_fallback_format();
      }
    }
    $config->set('display', $displays);
    $config->save();
  }
}

/**
 * Add Apple media types to document file type and to allowed extensions.
 */
function file_update_1011() {
  $config = config('file.type.document');
  $mimetypes = $config->get('mimetypes');
  $mimetypes = array_merge($mimetypes, array(
    'application/vnd.apple.keynote',
    'application/vnd.apple.numbers',
    'application/vnd.apple.pages',
  ));
  $config->set('mimetypes', $mimetypes);
  $config->save();

  // Check if there are any existing files with these extensions that are of
  // type 'undefined'. If so, turn on the reclassification alert.
  $count = db_query("SELECT COUNT(fid) FROM {file_managed} WHERE (filename LIKE :keynote_extension OR filename LIKE :numbers_extension OR filename LIKE :pages_extension) AND type = :undefined_type",
    array(
      ':keynote_extension' => '%.keynote',
      ':numbers_extension' => '%.numbers',
      ':pages_extension' => '%.pages',
      ':undefined_type' => 'undefined',
    ))->fetchField();
  if ($count) {
    file_needs_type_classification(TRUE);
    $message = format_plural($count, '@count file with an Apple file type was found.', '@count files with Apple file types were found.', array('@count' => $count));
    $message .= ' ' . t('Visit the <a href="@url">File reclassification form</a> next to classify these files properly.', array(
      '@url' => url('admin/structure/file-types/classify'),
    ));
    return $message;
  }
}
Functions

Name	Description
file_field_schema	Implements hook_field_schema().
file_requirements	Implements hook_requirements().
file_schema	Implements hook_schema().
file_update_1000	Add a view for managing files.
file_update_1001	Add a Manage file link to the admin files view.
file_update_1002	Switch the 'edit files' permission to 'manage files'.
file_update_1003	Add a type column to the file_managed table, and add a file_metadata table.
file_update_1004	Convert file_entity variables to config.
file_update_1005	Add the default file types and convert custom or modified file types from Drupal 7 file_entity.
file_update_1006	Add the default file display settings and convert saved file display settings from Drupal 7 file_entity.
file_update_1007	Grant the admin role permission to manage files and file types.
file_update_1008	Creates the table to enable caching of Comment entities.
file_update_1009	Remove the file_type_determine queue.
file_update_1010	Ensures that the "no results" text in 'file_admin' view has a valid format.
file_update_1011	Add Apple media types to document file type and to allowed extensions.
file_update_dependencies	Implements hook_update_dependencies().