function Connection::setPrefix

Set the list of prefixes used by this database connection.

Parameters

array|string $prefix: Either a single prefix, or an array of prefixes, in any of the multiple forms documented in default.settings.php.

File

core/lib/Drupal/Core/Database/Connection.php, line 296

Class

Connection

Base Database API class.

Namespace

Code

protected function setPrefix($prefix) {
    if (is_array($prefix)) {
        $this->prefixes = $prefix + [
            'default' => '',
        ];
    }
    else {
        $this->prefixes = [
            'default' => $prefix,
        ];
    }
    // Set up variables for use in prefixTables(). Replace table-specific
    // prefixes first.
    $this->prefixSearch = [];
    $this->prefixReplace = [];
    foreach ($this->prefixes as $key => $val) {
        if ($key != 'default') {
            $this->prefixSearch[] = '{' . $key . '}';
            $this->prefixReplace[] = $val . $key;
        }
    }
    // Then replace remaining tables with the default prefix.
    $this->prefixSearch[] = '{';
    $this->prefixReplace[] = $this->prefixes['default'];
    $this->prefixSearch[] = '}';
    $this->prefixReplace[] = '';
    // Set up a map of prefixed => un-prefixed tables.
    foreach ($this->prefixes as $table_name => $prefix) {
        if ($table_name !== 'default') {
            $this->unprefixedTablesMap[$prefix . $table_name] = $table_name;
        }
    }
}