Update.php in Drupal driver for SQL Server and SQL Azure 4.2.x

Namespace

Drupal\sqlsrv\Driver\Database\sqlsrv

File

src/Driver/Database/sqlsrv/Update.php

<?php

namespace Drupal\sqlsrv\Driver\Database\sqlsrv;

use Drupal\Core\Database\Database;
use Drupal\Core\Database\Query\SelectInterface;
use Drupal\Core\Database\Query\Update as QueryUpdate;

/**
 * Sqlsvr implementation of \Drupal\Core\Database\Query\Update.
 */
class Update extends QueryUpdate {

  /**
   * {@inheritdoc}
   */
  public function execute() {

    // Retrieve query options.
    $options = $this->queryOptions;

    // Fetch the list of blobs and sequences used on that table.

    /** @var \Drupal\sqlsrv\Driver\Database\sqlsrv\Schema $schema */
    $schema = $this->connection
      ->schema();
    $columnInformation = $schema
      ->queryColumnInformation($this->table);

    // Because we filter $fields the same way here and in __toString(), the
    // placeholders will all match up properly.

    /** @var \Drupal\Core\Database\Statement $stmt */
    $stmt = $this->connection
      ->prepareStatement((string) $this, []);

    // Expressions take priority over literal fields, so we process those first
    // and remove any literal fields that conflict.
    $fields = $this->fields;
    foreach ($this->expressionFields as $field => $data) {
      if (!empty($data['arguments'])) {
        foreach ($data['arguments'] as $placeholder => $argument) {

          // We assume that an expression will never happen on a BLOB field,
          // which is a fairly safe assumption to make since in most cases
          // it would be an invalid query anyway.
          $stmt
            ->getClientStatement()
            ->bindParam($placeholder, $data['arguments'][$placeholder]);
        }
      }
      if ($data['expression'] instanceof SelectInterface) {
        $data['expression']
          ->compile($this->connection, $this);
        $select_query_arguments = $data['expression']
          ->arguments();
        foreach ($select_query_arguments as $placeholder => $argument) {
          $stmt
            ->getClientStatement()
            ->bindParam($placeholder, $select_query_arguments[$placeholder]);
        }
      }
      unset($fields[$field]);
    }

    // We use this array to store references to the blob handles.
    // This is necessary because the PDO will otherwise messes up with
    // references.
    $blobs = [];
    Utils::bindValues($stmt, $fields, $blobs, ':db_update_placeholder_', $columnInformation);

    // Add conditions.
    if (count($this->condition)) {
      $this->condition
        ->compile($this->connection, $this);
      $arguments = $this->condition
        ->arguments();
      Utils::bindArguments($stmt, $arguments);
    }
    $options = $this->queryOptions;
    $options['already_prepared'] = TRUE;
    $options['return'] = Database::RETURN_AFFECTED;
    return $stmt
      ->execute(NULL, $options);
  }

}

Classes

Name	Description
Update	Sqlsvr implementation of \Drupal\Core\Database\Query\Update.