class Update in Drupal 8

PostgreSQL implementation of \Drupal\Core\Database\Query\Update.

Hierarchy

• class \Drupal\Core\Database\Query\Query implements PlaceholderInterface
  • class \Drupal\Core\Database\Query\Update implements ConditionInterface uses QueryConditionTrait
    • class \Drupal\Core\Database\Driver\pgsql\Update

1 file declares its use of Update

Update.php in core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestPgsql/Update.php

24 string references to 'Update'

BlockFormMessagesTest::testValidationMessage in core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php

Tests that validation messages are shown on the block form.

CommentAdminOverview::buildForm in core/modules/comment/src/Form/CommentAdminOverview.php

Form constructor for the comment overview administration form.

CommentAdminTest::testApprovalAdminInterface in core/modules/comment/tests/src/Functional/CommentAdminTest.php

Test comment approval functionality through admin/content/comment.

CommentAdminTest::testCommentedTranslationDeletion in core/modules/comment/tests/src/Functional/CommentAdminTest.php

Tests commented translation deletion admin view.

CommentNonNodeTest::performCommentOperation in core/modules/comment/tests/src/Functional/CommentNonNodeTest.php

Performs the specified operation on the specified comment.

... See full list

File

core/lib/Drupal/Core/Database/Driver/pgsql/Update.php, line 12

Namespace

Drupal\Core\Database\Driver\pgsql

class Update extends QueryUpdate {
  public function execute() {
    $max_placeholder = 0;
    $blobs = [];
    $blob_count = 0;

    // Because we filter $fields the same way here and in __toString(), the
    // placeholders will all match up properly.
    $stmt = $this->connection
      ->prepareQuery((string) $this);

    // Fetch the list of blobs and sequences used on that table.
    $table_information = $this->connection
      ->schema()
      ->queryTableInformation($this->table);

    // 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.
          $stmt
            ->bindParam($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) {
          $stmt
            ->bindParam($placeholder, $select_query_arguments[$placeholder]);
        }
      }
      unset($fields[$field]);
    }
    foreach ($fields as $field => $value) {
      $placeholder = ':db_update_placeholder_' . $max_placeholder++;
      if (isset($table_information->blob_fields[$field])) {
        $blobs[$blob_count] = fopen('php://memory', 'a');
        fwrite($blobs[$blob_count], $value);
        rewind($blobs[$blob_count]);
        $stmt
          ->bindParam($placeholder, $blobs[$blob_count], \PDO::PARAM_LOB);
        ++$blob_count;
      }
      else {
        $stmt
          ->bindParam($placeholder, $fields[$field]);
      }
    }
    if (count($this->condition)) {
      $this->condition
        ->compile($this->connection, $this);
      $arguments = $this->condition
        ->arguments();
      foreach ($arguments as $placeholder => $value) {
        $stmt
          ->bindParam($placeholder, $arguments[$placeholder]);
      }
    }
    $options = $this->queryOptions;
    $options['already_prepared'] = TRUE;
    $options['return'] = Database::RETURN_AFFECTED;
    $this->connection
      ->addSavepoint();
    try {
      $result = $this->connection
        ->query($stmt, [], $options);
      $this->connection
        ->releaseSavepoint();
      return $result;
    } catch (\Exception $e) {
      $this->connection
        ->rollbackSavepoint();
      throw $e;
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Query::$comments	protected	property	An array of comments that can be prepended to a query.
Query::$connection	protected	property	The connection object on which to run this query.
Query::$connectionKey	protected	property	The key of the connection object.
Query::$connectionTarget	protected	property	The target of the connection object.
Query::$nextPlaceholder	protected	property	The placeholder counter.
Query::$queryOptions	protected	property	The query options to pass on to the connection object.
Query::$uniqueIdentifier	protected	property	A unique identifier for this query object.
Query::comment	public	function	Adds a comment to the query.
Query::getComments	public	function	Returns a reference to the comments array for the query.
Query::nextPlaceholder	public	function	Gets the next placeholder value for this query object. Overrides PlaceholderInterface::nextPlaceholder
Query::uniqueIdentifier	public	function	Returns a unique identifier for this object. Overrides PlaceholderInterface::uniqueIdentifier
Query::__clone	public	function	Implements the magic __clone function.	1
Query::__sleep	public	function	Implements the magic __sleep function to disconnect from the database.
Query::__wakeup	public	function	Implements the magic __wakeup function to reconnect to the database.
QueryConditionTrait::$condition	protected	property	The condition object for this query.
QueryConditionTrait::alwaysFalse	public	function
QueryConditionTrait::andConditionGroup	public	function
QueryConditionTrait::arguments	public	function		1
QueryConditionTrait::compile	public	function		1
QueryConditionTrait::compiled	public	function		1
QueryConditionTrait::condition	public	function
QueryConditionTrait::conditionGroupFactory	public	function
QueryConditionTrait::conditions	public	function
QueryConditionTrait::exists	public	function
QueryConditionTrait::isNotNull	public	function
QueryConditionTrait::isNull	public	function
QueryConditionTrait::notExists	public	function
QueryConditionTrait::orConditionGroup	public	function
QueryConditionTrait::where	public	function
Update::$arguments	protected	property	An array of values to update to.
Update::$expressionFields	protected	property	Array of fields to update to an expression in case of a duplicate record.
Update::$fields	protected	property	An array of fields that will be updated.
Update::$table	protected	property	The table to update.
Update::execute	public	function	Executes the UPDATE query. Overrides Update::execute
Update::expression	public	function	Specifies fields to be updated as an expression.
Update::fields	public	function	Adds a set of field->value pairs to be updated.
Update::__construct	public	function	Constructs an Update query object. Overrides Query::__construct
Update::__toString	public	function	Implements PHP magic __toString method to convert the query to a string. Overrides Query::__toString