block.install

<?php
/**
 * @file
 * Install, update and uninstall functions for the block module.
 */

/**
 * Implements hook_update_dependencies().
 */
function block_update_dependencies() {
  // Do not drop the block tables until after System module has enabled and
  // migrated blocks into layouts.
  $dependencies['block'][1002] = array(
    'system' => 1025,
  );

  return $dependencies;
}

/**
 * @addtogroup updates-7.x-to-1.x
 * @{
 */

/**
 * Block cache is always enabled in Backdrop.
 */
function block_update_1000() {
  update_variable_del('block_cache');
}

/**
 * Add a column for title to the block_custom table.
 */
function block_update_1001() {
  if (db_field_exists('block_custom', 'title')) {
    return;
  }

  $schema = array(
    'type' => 'varchar',
    'length' => 128,
    'not null' => TRUE,
    'default' => '',
    'description' => 'Custom title for the block. (Empty string will use block default title, <none> will remove the title, text will cause block to use specified title.)',
    'translatable' => TRUE,
  );
  db_add_field('block_custom', 'title', $schema);

  $result = db_query("SELECT * FROM {block} WHERE module = 'block'");
  foreach ($result as $row) {
    db_update('block_custom')
      ->condition('bid', $row->delta)
      ->fields(array(
        'title' => $row->title,
      ))
      ->execute();
  }
}

/**
 * Remove the legacy block tables.
 */
function block_update_1002() {
  db_drop_table('block');
  db_drop_table('block_role');
  db_drop_table('cache_block');

  // Set the system weight back to 0, previously it was -5, but this weight is
  // no longer necessary as Block is no longer responsible for page layout.
  module_set_weight('block', 0);
}

/**
 * Increase {block_custom}.title length to 255 characters.
 */
function block_update_1003() {
  db_change_field('block_custom', 'title', 'title',
    array(
      'type' => 'varchar',
      'length' => 255,
      'not null' => TRUE,
      'default' => '',
      'description' => 'Custom title for the block. (Empty string will use block default title, <none> will remove the title, text will cause block to use specified title.)',
      'translatable' => TRUE,
    )
  );
}

/**
 * Move individual blocks into config files.
 */
function block_update_1004() {
  if (!db_table_exists('block_custom')) {
    return;
  }

  $blocks = db_query("SELECT * FROM {block_custom}")->fetchAllAssoc('bid');
  foreach ($blocks as $block) {
    $block = (array) $block;
    $data = array(
      'delta' => $block['bid'],
      'info' => $block['info'],
      'title' => $block['title'],
      'body' => array(
        'value'=> $block['body'],
        'format' => $block['format'],
        ),
      );
    $config = config('block.custom.' . $block['bid']);
    $config->setData($data);
    $config->save();
  }

  db_drop_table('block_custom');
}

/**
 * @} End of "addtogroup updates-7.x-to-1.x"
 * The next series of updates should start at 2000.
 */