public function Update::expression

Specifies fields to be updated as an expression.

Expression fields are cases such as counter=counter+1. This method takes precedence over fields().

Parameters

$field: The field to set.

$expression: The field will be set to the value of this expression. This parameter may include named placeholders.

$arguments: If specified, this is an array of key/value pairs for named placeholders corresponding to the expression.

Return value

Drupal\Core\Database\Query\Update The called object.

File

drupal/core/lib/Drupal/Core/Database/Query/Update.php, line 190

Definition of Drupal\Core\Database\Query\Update

Class

Update

General class for an abstracted UPDATE operation.

Namespace

Code

public function expression($field, $expression, array $arguments = NULL) {
  $this->expressionFields[$field] = array(
    'expression' => $expression,
    'arguments' => $arguments,
  );
  return $this;
}