Quotes an identifier if it matches a MySQL reserved keyword.

Parameters

string $identifier: The field to check.

Return value

string The identifier, quoted if it matches a MySQL reserved keyword.

2 calls to Connection::quoteIdentifier()

Connection::escapeAlias in core/lib/Drupal/Core/Database/Driver/mysql/Connection.php

Escapes an alias name string.

Connection::escapeField in core/lib/Drupal/Core/Database/Driver/mysql/Connection.php

Escapes a field name string.

File

core/lib/Drupal/Core/Database/Driver/mysql/Connection.php, line 497

Class

Connection

MySQL implementation of \Drupal\Core\Database\Connection.

Namespace

Drupal\Core\Database\Driver\mysql

Code

private function quoteIdentifier($identifier) {
    // Quote identifiers so that MySQL reserved words like 'function' can be
    // used as column names. Sometimes the 'table.column_name' format is passed
    // in. For example,
    // \Drupal\Core\Entity\Sql\SqlContentEntityStorage::buildQuery() adds a
    // condition on "base.uid" while loading user entities.
    if (strpos($identifier, '.') !== FALSE) {
        list($table, $identifier) = explode('.', $identifier, 2);
    }
    if (in_array(strtolower($identifier), $this->reservedKeyWords, TRUE)) {
        // Quote the string for MySQL reserved keywords.
        $identifier = '"' . $identifier . '"';
    }
    return isset($table) ? $table . '.' . $identifier : $identifier;
}

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