<?php

header('Content-Type: application/json');

try{

    $pdo = new PDO('sqlite:../data/base.sqlite');

    $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);

    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); // ERRMODE_WARNING | ERRMODE_EXCEPTION | ERRMODE_SILENT

} catch(Exception $e) {

    echo "Impossible d'accéder à la base de données SQLite : ".$e->getMessage();

    die();

}

$where_clause  = 'WHERE 1 = 1 ';

$where_clause .= 'AND item = '.$_REQUEST['item'];

$sql = ' 

WITH arbre (id,level, path) AS(

    SELECT parent, 0, '['|| tree.parent || ']'

    FROM tree 

    WHERE_CLAUSE

  UNION ALL

    SELECT parent, arbre.level+1, arbre.path||'['||tree.parent||']'

    FROM tree

    INNER JOIN arbre ON arbre.id = tree.item

) SELECT arbre.*, item.code, item.title FROM arbre 

INNER JOIN item ON arbre.id = item.id

ORDER BY path DESC

';

$query = $pdo->prepare(str_replace('WHERE_CLAUSE',$where_clause,$sql));

$query->execute();

echo json_encode( $query->fetchAll(PDO::FETCH_ASSOC));

?>