Javascript 具有动态数据的引导树视图

有人能帮我把这个PHP代码转换成Django代码吗

我想使用Bootstrap Treeview插件，动态数据来自Django后端。我从一个网站上找到了这段代码，但不幸的是它是针对PHP的。 我甚至不知道PHP的“P”

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正确的用户名。@kerbh0lz什么？正确的用户名。@kerbh0lz什么？

<?php
//fetch.php
$connect = mysqli_connect("localhost", "root", "", "testing1");
$query = "
 SELECT * FROM country_state_city
";
$result = mysqli_query($connect, $query);
//$output = array();
while($row = mysqli_fetch_array($result))
{
 $sub_data["id"] = $row["id"];
 $sub_data["name"] = $row["name"];
 $sub_data["text"] = $row["name"];
 $sub_data["parent_id"] = $row["parent_id"];
 $data[] = $sub_data;
}
foreach($data as $key => &$value)
{
 $output[$value["id"]] = &$value;
}
foreach($data as $key => &$value)
{
 if($value["parent_id"] && isset($output[$value["parent_id"]]))
 {
  $output[$value["parent_id"]]["nodes"][] = &$value;
 }
}
foreach($data as $key => &$value)
{
 if($value["parent_id"] && isset($output[$value["parent_id"]]))
 {
  unset($data[$key]);
 }
}
echo json_encode($data);
/*echo '<pre>';
print_r($data);
echo '</pre>';*/

?>

--
-- Table structure for table `country_state_city`
--

CREATE TABLE IF NOT EXISTS `country_state_city` (
  `id` int(11) NOT NULL,
  `name` varchar(250) NOT NULL,
  `parent_id` int(11) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=28 DEFAULT CHARSET=latin1;

--
-- Dumping data for table `country_state_city`
--

INSERT INTO `country_state_city` (`id`, `name`, `parent_id`) VALUES
(1, 'USA', 0),
(2, 'Canada', 0),
(3, 'Australia', 0),
(4, 'New York', 1),
(5, 'Alabama', 1),
(6, 'California', 1),
(7, 'Ontario', 2),
(8, 'British Columbia', 2),
(9, 'New South Wales', 3),
(10, 'Queensland', 3)

--
-- Indexes for dumped tables
--

--
-- Indexes for table `country_state_city`
--
ALTER TABLE `country_state_city`
  ADD PRIMARY KEY (`id`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `country_state_city`
--
ALTER TABLE `country_state_city`
  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=28;