function dblog_update_7001 in Drupal 7

Update the {watchdog} table.

Related topics

File

modules/dblog/dblog.install, line 110

Install, update and uninstall functions for the dblog module.

Code

function dblog_update_7001() {

  // Allow NULL values for links.
  db_change_field('watchdog', 'link', 'link', array(
    'type' => 'varchar',
    'length' => 255,
    'not null' => FALSE,
    'default' => '',
    'description' => 'Link to view the result of the event.',
  ));

  // Add an index on uid.
  db_add_index('watchdog', 'uid', array(
    'uid',
  ));

  // Allow longer type values.
  db_change_field('watchdog', 'type', 'type', array(
    'type' => 'varchar',
    'length' => 64,
    'not null' => TRUE,
    'default' => '',
    'description' => 'Type of log message, for example "user" or "page not found."',
  ));

  // Convert the variables field (that stores serialized variables) from text to blob.
  db_change_field('watchdog', 'variables', 'variables', array(
    'type' => 'blob',
    'not null' => TRUE,
    'size' => 'big',
    'description' => 'Serialized array of variables that match the message string and that is passed into the t() function.',
  ));
}