function RulesContainerPlugin::sortChildren

Sorts all child elements by their weight.

Parameters

bool $deep: If enabled a deep sort is performed, thus the whole element tree below this element is sorted.

File

includes/rules.core.inc, line 2419

Class

RulesContainerPlugin

Base class for ContainerPlugins like Rules, Logical Operations or Loops.

Code

public function sortChildren($deep = FALSE) {
  // Make sure the array order is kept in case two children have the same
  // weight by ensuring later children would have higher weights.
  foreach (array_values($this->children) as $i => $child) {
    $child->weight += $i / 1000;
  }
  usort($this->children, array(
    'RulesPlugin',
    'compare',
  ));
  // Fix up the weights afterwards to be unique integers.
  foreach (array_values($this->children) as $i => $child) {
    $child->weight = $i;
  }
  if ($deep) {
    foreach (new ParentIterator($this->getIterator()) as $child) {
      $child->sortChildren(TRUE);
    }
  }
  $this->resetInternalCache();
}