1 query.inc | public UpdateQuery::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 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.
$arguments: If specified, this is an array of key/value pairs for named placeholders corresponding to the expression.
Return value
UpdateQuery: The called object.
File
- core/
includes/ database/ query.inc, line 1153 - Non-specific Database query code. Used by all engines.
Class
- UpdateQuery
- General class for an abstracted UPDATE operation.
Code
public function expression($field, $expression, array $arguments = NULL) {
$this->expressionFields[$field] = array(
'expression' => $expression,
'arguments' => $arguments,
);
return $this;
}