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<?php
namespace Drupal\Core\Entity;
/**
* Provides a trait for managing an object's dependencies.
*/
trait DependencyTrait {
/**
* The object's dependencies.
*
* @var array
*/
protected $dependencies = [];
/**
* Adds a dependency.
*
* @param string $type
* Type of dependency being added: 'module', 'theme', 'config', 'content'.
* @param string $name
* If $type is 'module' or 'theme', the name of the module or theme. If
* $type is 'config' or 'content', the result of
* EntityInterface::getConfigDependencyName().
*
* @see \Drupal\Core\Entity\EntityInterface::getConfigDependencyName()
*
* @return $this
*/
protected function addDependency($type, $name) {
if (empty($this->dependencies[$type])) {
$this->dependencies[$type] = [$name];
if (count($this->dependencies) > 1) {
// Ensure a consistent order of type keys.
ksort($this->dependencies);
}
}
elseif (!in_array($name, $this->dependencies[$type])) {
$this->dependencies[$type][] = $name;
// Ensure a consistent order of dependency names.
sort($this->dependencies[$type], SORT_FLAG_CASE);
}
return $this;
}
/**
* Adds multiple dependencies.
*
* @param array $dependencies
* An array of dependencies keyed by the type of dependency. One example:
* @code
* array(
* 'module' => array(
* 'node',
* 'field',
* 'image',
* ),
* );
* @endcode
*
* @see \Drupal\Core\Entity\DependencyTrait::addDependency
*/
protected function addDependencies(array $dependencies) {
foreach ($dependencies as $dependency_type => $list) {
foreach ($list as $name) {
$this->addDependency($dependency_type, $name);
}
}
}
}