public Merge::expression($field, $expression, array $arguments = NULL)
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 it's 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.
$arguments: If specified, this is an array of key/value pairs for named placeholders corresponding to the expression.
Return value
\Drupal\Core\Database\Query\Merge The called object.
File
- core/lib/Drupal/Core/Database/Query/Merge.php, line 192
Class
- Merge
- General class for an abstracted MERGE query operation.
Namespace
Drupal\Core\Database\Query
Code
1 2 3 4 5 6 7 8 | public function expression($field, $expression, array $arguments = NULL) { $this->expressionFields[$field] = array( 'expression' => $expression, 'arguments' => $arguments, ); $this->needsUpdate = TRUE; return $this;} |
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