Club Drupal

<?php

/**

 * @file

 * Install, update and uninstall functions for the twitter_block module.

 */

/**

 * Implements hook_schema().

 */

function twitter_block_schema() {

  $schema['twitter_block'] = array(

    'description' => 'The table for storing twitter blocks.',

    'fields' => array(

      'bid' => array(

        'type' => 'serial',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'description' => "The block's {block}.bid.",

      ),

      'info' => array(

        'type' => 'varchar',

        'length' => 128,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Block description.',

      ),

      'widget_id' => array(

        'type' => 'varchar',

        'length' => 128,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Widget ID.',

      ),

      'username' => array(

        'type' => 'varchar',

        'length' => 128,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Account username.',

      ),

      'data' => array(

        'type' => 'blob',

        'size' => 'big',

        'not null' => TRUE,

        'serialize' => TRUE,

        'description' => 'Serialized data containing the timeline properties.',

      ),

    ),

    'unique keys' => array(

      'info' => array('info'),

      'widget_id' => array('widget_id'),

    ),

    'primary key' => array('bid'),

  );

  return $schema;

}

/**

 * Implements hook_uninstall().

 */

function twitter_block_uninstall() {

  // Remove blocks.

  db_delete('block')

    ->condition('module', 'twitter_block')

    ->execute();

  db_delete('block_role')

    ->condition('module', 'twitter_block')

    ->execute();

  // Remove variables.

  variable_del('twitter_block_cache');

  variable_del('twitter_block_last_cache');

  // Remove the cache directory.

  twitter_block_clear_js_cache();

  // Clear the site cache.

  cache_clear_all();

}

/**

 * Remove any old Twitter Block blocks and install the new Twitter Block schema.

 */

function twitter_block_update_7200() {

  // Remove old Twitter Block schema.

  drupal_uninstall_schema('twitter_block');

  // Remove any old Twitter Block blocks.

  db_delete('block')

    ->condition('module', 'twitter_block')

    ->execute();

  db_delete('block_role')

    ->condition('module', 'twitter_block')

    ->execute();

  // Clear the site cache.

  cache_clear_all();

  // Install the new Twitter Block schema.

  drupal_install_schema('twitter_block');

  return t('Removed any old Twitter Block blocks and installed the new Twitter Block schema.');

}

/**

 * Add a column to the {twitter_block} table to store the Twitter account username.

 */

function twitter_block_update_7201() {

  db_add_field('twitter_block', 'username', array(

    'type' => 'varchar',

    'length' => 128,

    'not null' => TRUE,

    'default' => '',

    'description' => 'Account username.',

  ));

}