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- <?php
- /**
- * @file
- * Install, update and uninstall functions for the dblog module.
- */
- /**
- * Implements hook_schema().
- */
- function dblog_schema() {
- $schema['watchdog'] = array(
- 'description' => 'Table that contains logs of all system events.',
- 'fields' => array(
- 'wid' => array(
- 'type' => 'serial',
- 'not null' => TRUE,
- 'description' => 'Primary Key: Unique watchdog event ID.',
- ),
- 'uid' => array(
- 'type' => 'int',
- 'not null' => TRUE,
- 'default' => 0,
- 'description' => 'The {users}.uid of the user who triggered the event.',
- ),
- 'type' => array(
- 'type' => 'varchar',
- 'length' => 64,
- 'not null' => TRUE,
- 'default' => '',
- 'description' => 'Type of log message, for example "user" or "page not found."',
- ),
- 'message' => array(
- 'type' => 'text',
- 'not null' => TRUE,
- 'size' => 'big',
- 'description' => 'Text of log message to be passed into the t() function.',
- ),
- '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.',
- ),
- 'severity' => array(
- 'type' => 'int',
- 'unsigned' => TRUE,
- 'not null' => TRUE,
- 'default' => 0,
- 'size' => 'tiny',
- 'description' => 'The severity level of the event; ranges from 0 (Emergency) to 7 (Debug)',
- ),
- 'link' => array(
- 'type' => 'varchar',
- 'length' => 255,
- 'not null' => FALSE,
- 'default' => '',
- 'description' => 'Link to view the result of the event.',
- ),
- 'location' => array(
- 'type' => 'text',
- 'not null' => TRUE,
- 'description' => 'URL of the origin of the event.',
- ),
- 'referer' => array(
- 'type' => 'text',
- 'not null' => FALSE,
- 'description' => 'URL of referring page.',
- ),
- 'hostname' => array(
- 'type' => 'varchar',
- 'length' => 128,
- 'not null' => TRUE,
- 'default' => '',
- 'description' => 'Hostname of the user who triggered the event.',
- ),
- 'timestamp' => array(
- 'type' => 'int',
- 'not null' => TRUE,
- 'default' => 0,
- 'description' => 'Unix timestamp of when event occurred.',
- ),
- ),
- 'primary key' => array('wid'),
- 'indexes' => array(
- 'type' => array('type'),
- 'uid' => array('uid'),
- 'severity' => array('severity'),
- ),
- );
- return $schema;
- }
- /**
- * Implements hook_uninstall().
- */
- function dblog_uninstall() {
- variable_del('dblog_row_limit');
- }
- /**
- * @addtogroup updates-6.x-to-7.x
- * @{
- */
- /**
- * Update the {watchdog} table.
- */
- 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.',
- ));
- }
- /**
- * @} End of "addtogroup updates-6.x-to-7.x".
- */
- /**
- * @addtogroup updates-7.x-extra
- * @{
- */
- /**
- * Add an index to the severity column in the watchdog database table.
- */
- function dblog_update_7002() {
- db_add_index('watchdog', 'severity', array('severity'));
- }
- /**
- * Account for possible legacy systems where dblog was not installed.
- */
- function dblog_update_7003() {
- if (!db_table_exists('watchdog')) {
- db_create_table('watchdog', drupal_get_schema_unprocessed('dblog', 'watchdog'));
- }
- }
- /**
- * @} End of "addtogroup updates-7.x-extra".
- */
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