protected function SchemaMigrator::recreateIndexes in Schema 8

Parameters

$table TableComparison:

1 call to SchemaMigrator::recreateIndexes()

SchemaMigrator::execute in src/Migration/SchemaMigrator.php

File

src/Migration/SchemaMigrator.php, line 226

Contains Drupal\schema\Migration\SchemaMigrator.

Class

SchemaMigrator

Modifies the database schema to match the declared schema.

Namespace

Drupal\schema\Migration

Code

protected function recreateIndexes($table) {

  // Recreate indices by first removing all, then adding them one by one.
  $existing = $this->dbschema
    ->getIndexes($table
    ->getTableName());
  $count = 0;
  foreach ($existing as $index) {
    $this->dbschema
      ->dropIndex($table
      ->getTableName(), $index);
    $this
      ->logSuccess("Dropped index {index} from {table}.", array(
      'table' => $table
        ->getTableName(),
      'index' => $index,
    ));
    $count++;
  }
  if ($count > 0) {
    $this
      ->logSuccess("Dropped {num} existing indexes from {table}.", array(
      'table' => $table
        ->getTableName(),
      'num' => $count,
    ));
  }
  $indexes = $table
    ->getDeclaredIndexes($this
    ->options()->recreateExtraIndexes);
  foreach ($indexes['indexes'] as $i_name => $fields) {
    $this->dbschema
      ->addIndex($table
      ->getTableName(), $i_name, $fields);
    $this
      ->logSuccess("Added index {index} to {table} on {keys}.", array(
      'table' => $table
        ->getTableName(),
      'index' => $i_name,
      'keys' => '[' . implode(', ', $fields) . ']',
    ));
  }
  foreach ($indexes['unique keys'] as $i_name => $fields) {
    $this->dbschema
      ->addUniqueKey($table
      ->getTableName(), $i_name, $fields);
    $this
      ->logSuccess("Added index {index} to {table} on {keys}.", array(
      'table' => $table
        ->getTableName(),
      'index' => $i_name,
      'keys' => '[' . implode(', ', $fields) . ']',
    ));
  }
}