function system_update_7059 in Drupal 7

Create the {file_usage} table.

Related topics

File

modules/system/system.install, line 2691

Install, update and uninstall functions for the system module.

Code

function system_update_7059() {
  $spec = 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',
      ),
    ),
  );
  db_create_table('file_usage', $spec);
}