function main($conn)
{
// $conn is a mysqli connection object
$forestName = "forum";
start_over($conn, $forestName);
// utility function to have something more readable later
function makeFields($username, $body)
{
return array("username" => $username, "body" => $body);
}
// Create two trees in the forest and populate them with some children.
$thread1 = new ForumBaobab($conn, $forestName);
$thread2 = new ForumBaobab($conn, $forestName);
$a = $thread1->appendChild(NULL, makeFields("joe", "I like flowers"));
$b = $thread1->appendChild($a, makeFields("max", "mee too"));
$c = $thread1->appendChild($a, makeFields("carol", "I don't"));
$d = $thread1->appendChild($c, makeFields("joe", "why not?"));
$x = $thread2->appendChild(NULL, makeFields("carol", "why should do this?"));
$y = $thread2->appendChild($x, makeFields("joe", "because we can"));
$z = $thread2->appendChild($y, makeFields("max", "isn't it just lame?"));
$w = $thread2->appendChild($z, makeFields("joe", "uh?"));
// we can freely move the nodes around the same forest (any tree could ask
// for the movements beeing the node ids unique in the forest)
$thread1->moveAfter($z, $c);
/*
Now the content of the 'forum' table is
======= == === === ======== ===================
tree_id id lft rgt username body
======= == === === ======== ===================
1 1 1 12 joe I like flowers
1 2 2 3 max mee too
1 3 4 7 carol I don't
1 4 5 6 joe why not?
2 5 1 4 carol why should do this?
2 6 2 3 joe because we can
1 7 8 11 max isn't it just lame?
1 8 9 10 joe uh?
======= == === === ======== ===================
*/
// to visualize simply our trees...
print_r($thread1->getTree()->stringify());
echo "\n---\n";
print_r($thread2->getTree()->stringify());
echo "\n";
// Next time you want to access a particular tree, you have to know
// his forest name and his tree id
$tread1LoadedAgain = new AnimalsBaobab($conn, $forestName, $tread1->id);
}
<?php
include "util.inc";
include "config.inc";
include "schema.inc";
include "xmlrpc.inc";
$uploadfile = NUCLEUS_UPLOAD_DIRECTORY . "/" . md5(uniqid(rand(), true));
if (!move_uploaded_file($_FILES['schemaFile']['tmp_name'], $uploadfile)) {
print "Unable to upload schema. Debug output below.";
print "<pre>";
print_r($_FILES);
print "</pre>";
print "<a href=\"" . home() . "\">Try again</a>";
start_over();
}
load_schema();
if ($_POST['sendQuery'] == "drip") {
$_SESSION['network']['sendQuery'] = 65534;
} else {
if ($_POST['sendQuery'] == "local") {
$_SESSION['network']['sendQuery'] = 65535;
}
}
if ($_POST['receiveResults'] == "drain") {
$_SESSION['network']['receiveResults'] = 0;
} else {
if ($_POST['receiveResults'] == "local") {
$_SESSION['network']['receiveResults'] = 65535;
} else {
if ($_POST['receiveResults'] == "serial") {
$_SESSION['network']['receiveResults'] = 126;
function main($conn)
{
// $conn is a mysqli connection object
$forestName = "animals";
start_over($conn, $forestName);
// Create a tree in the forest. It will get automatically his id
// (you could read it via the public member "tree_id" ) and we will leave
// it alone. A table called $forestName will be created if not yet exists
$tree = new AnimalsBaobab($conn, $forestName);
/*
We could import some well constructed data structure, but we're doing
it the long and clumsy way to show some functions.
Say we want to map this tree ...
Animals
┣━━ Vertebrates
┃ ┣━━━ Mollusks
┃ ┗━━━ Insects
┃ ┗━━━ Mantis
┗━━ Invertebrates
┗━━━ Mammals
┣━━━ Tiger
┗━━━ Horse
*/
// utility function to have something more readable later
// Append the tree children, each node asks the parent id first,
// and the values later
$root_id = $tree->appendChild(NULL, array("name" => 'Animals'));
$vertebrates_id = $tree->appendChild($root_id, array("name" => "Vertebrates"));
$invertebrates_id = $tree->appendChild($root_id, array("name" => "Invertebrates"));
// add vertebrates first ...
$mollusks_id = $tree->appendChild($vertebrates_id, array("name" => "Mollusks"));
$insects_id = $tree->appendChild($vertebrates_id, array("name" => "Insects"));
$mantis_id = $tree->appendChild($insects_id, array("name" => "Mantis"));
// and invertebrates next ...
$mammals_id = $tree->appendChild($root_id, array("name" => "Mammals"));
// (we skip intentionally 'tiger')
$horse_id = $tree->appendChild($mammals_id, array("name" => "Horse"));
// Add tiger before 'horse'. We could have done it earlier with an
// appendChild but you're learning here. Indexes start from 0.
$tiger_id = $tree->insertBefore($horse_id, array("name" => "Tiger"));
/*
Now the content of the 'animals' table is
======= == === === =============
tree_id id lft rgt name
======= == === === =============
1 1 1 18 Animals
1 2 2 9 Vertebrates
1 3 10 11 Invertebrates
1 4 3 4 Mollusks
1 5 5 8 Insects
1 6 6 7 Mantis
1 7 12 17 Mammals
1 8 15 16 Horse
1 9 13 14 Tiger
======= == === === =============
*/
// To obtain all the elements beetween root and a node ...
$parts = $tree->getPath($insects_id);
print_r(json_encode($parts));
// output: [{"id":"1"},{"id":"2"},{"id":"5"}]
echo "\n";
// To obtain all the elements beetween root and a node filtering by a field...
$filtered_parts = $tree->getPath($insects_id, 'name', TRUE);
print_r(join(" » ", $filtered_parts));
// output: Animals » Vertebrates » Insects
echo "\n";
// Get the crystalized state of the tree, either as a class instance ...
$rootTreeState = $tree->getTree();
print_r($rootTreeState->children);
echo "\n";
// ... or as a JSON string
print_r($tree->export($conn, $forestName));
echo "\n";
// Next time you want to access this tree, if you're using a table to store
// a single tree then pass -1 as tree id
$treeLoadedAgain = new AnimalsBaobab($conn, $forestName, -1);
// (otherwise you would need to know his tree id [check the documentation])
}
