function Merge::expression
Same name in other branches
- 8.9.x core/lib/Drupal/Core/Database/Query/Merge.php \Drupal\Core\Database\Query\Merge::expression()
- 10 core/lib/Drupal/Core/Database/Query/Merge.php \Drupal\Core\Database\Query\Merge::expression()
- 11.x core/lib/Drupal/Core/Database/Query/Merge.php \Drupal\Core\Database\Query\Merge::expression()
Specifies fields to be updated as an expression.
Expression fields are cases such as counter = counter + 1. This method takes precedence over MergeQuery::updateFields() and its wrappers, MergeQuery::key() and MergeQuery::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
$this The called object.
File
-
core/
lib/ Drupal/ Core/ Database/ Query/ Merge.php, line 196
Class
- Merge
- General class for an abstracted MERGE query operation.
Namespace
Drupal\Core\Database\QueryCode
public function expression($field, $expression, array $arguments = NULL) {
$this->expressionFields[$field] = [
'expression' => $expression,
'arguments' => $arguments,
];
$this->needsUpdate = TRUE;
return $this;
}
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