ChildrenOperation
class ChildrenOperation extends AbstractOperation (View source)
"children" operation working on generic objects. It iterates over all context elements and returns the values of the properties given in the filter expression that has to be specified as argument or in a following filter operation.
Properties
| static protected string | $shortName | {@inheritdoc} | |
| static protected int | $priority | The priority of operations. higher numbers override lower ones. |
from AbstractOperation |
| static protected bool | $final | If true, the operation is final, i.e. directly executed. |
from AbstractOperation |
Methods
This method is called to determine whether the operation can work with the $context objects. It can be implemented to implement runtime conditions.
Evaluate the property name filter by traversing to the child object. We only support nested objects right now
Details
static int
getPriority()
No description
static bool
isFinal()
No description
static string
getShortName()
No description
bool
canEvaluate($context)
This method is called to determine whether the operation can work with the $context objects. It can be implemented to implement runtime conditions.
mixed|null
evaluate(FlowQuery $flowQuery, array $arguments)
Evaluate the operation on the objects inside $flowQuery->getContext(), taking the $arguments into account.
The resulting operation results should be stored using $flowQuery->setContext().
If the operation is final, evaluate should directly return the operation result.
protected void
evaluatePropertyNameFilter(FlowQuery $query, string $propertyNameFilter)
Evaluate the property name filter by traversing to the child object. We only support nested objects right now