protected function Schema::createKeySql in Drupal 9

Same name in this branch

1. 9 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::createKeySql()
2. 9 core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::createKeySql()

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::createKeySql()

Build the SQL expression for keys.

2 calls to Schema::createKeySql()

Schema::createColumnsSql in core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php

Build the SQL expression for creating columns.

Schema::createIndexSql in core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php

Build the SQL expression for indexes.

File

core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php, line 111

Class

Schema

SQLite implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\Core\Database\Driver\sqlite

Code

protected function createKeySql($fields) {
  $return = [];
  foreach ($fields as $field) {
    if (is_array($field)) {
      $return[] = $field[0];
    }
    else {
      $return[] = $field;
    }
  }
  return implode(', ', $return);
}