/**
* Create a hierarchy of roles.
* @param array $inHierarchy The hierarchy of roles.
* @throws \Exception
*/
public function __construct($inHierarchyOrTopRole)
{
if (is_array($inHierarchyOrTopRole)) {
$this->__tree = Tree::fromArray($inHierarchyOrTopRole, null, 'role', 'access');
$this->__currentRole = $this->__tree->getRoot();
$this->__index = $this->__tree->index(function ($x) {
return $x;
}, true);
$this->__init = true;
} elseif (is_string($inHierarchyOrTopRole)) {
$this->__tree = new Tree($inHierarchyOrTopRole);
$this->__currentRole = $this->__index[$inHierarchyOrTopRole] = $this->__tree->getRoot();
} else {
throw new \Exception("Invalid value for hierarchy' specification. Valid values are strings or arrays.");
}
}
/**
* This method checks that the method used to create a tree from an array representation works as expected.
*/
public function testFromArray()
{
$fixture = $this->__fixturesDir . DIRECTORY_SEPARATOR . 'treeAsJson.json';
$treeFromArray = Tree::fromArray($this->__treeAsArray);
$this->assertJsonStringEqualsJsonFile($fixture, json_encode($treeFromArray->toArray()));
$deserializer = function ($v) {
return self::__dataDeserializer($v);
};
$source = $this->__fixturesDir . DIRECTORY_SEPARATOR . 'treeSerializedAsJson.json';
$array = json_decode(file_get_contents($source), true);
$treeFromArray = Tree::fromArray($array, $deserializer);
$this->assertJsonStringEqualsJsonFile($fixture, json_encode($treeFromArray->toArray()));
}
<?php
/**
* This example illustrates the procedure to create a tree (an object of class \dbeurive\Tree\Tree from an array of imbricated arrays.
*/
include __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
use dbeurive\Tree\Tree;
$array = array('data' => 'getRoot', 'children' => array(array('data' => 'A', 'children' => array()), array('data' => 'B', 'children' => array()), array('data' => 'C', 'children' => array(array('data' => 'D', 'children' => array(array('data' => 'E', 'children' => array(array('data' => 'EE', 'children' => array()), array('data' => 'EEE', 'children' => array()))), array('data' => 'F', 'children' => array()))), array('data' => 'A', 'children' => array(array('data' => 'H', 'children' => array(array('data' => 'I', 'children' => array(array('data' => 'J', 'children' => array(array('data' => 'K', 'children' => array()), array('data' => 'L', 'children' => array())))))))))))));
$tree = Tree::fromArray($array);
// Generate the DOT representation, so we can verify that the tree is OK.
$dot = $tree->toDot();
$fd = fopen(__DIR__ . DIRECTORY_SEPARATOR . "array2tree.dot", "w");
fwrite($fd, $dot);
fclose($fd);
print "To create a graphical representation of the tree, install GRAPHVIZ and run the following command:\n";
print "dot -Tgif -Ograph array2tree.dot\n";
