Update Subject

PATCH /v1/nextexams/subjects/{id}

Update a subject

Changes only the fields you send. Moving a subject (parent_id) rebuilds the path of its whole subtree; a move under its own descendant is refused. Scope subjects:write; the role needs subjects.edit.

Request

PATCH https://your-site.example/api/index.php/v1/nextexams/subjects/{id}

Parameters

Name	Type	In	Required	Description
`id`	`integer`	`path`	Yes	The record's id. (min 1)

Request body

Content type: application/json

Field	Type	Required	Description
`title`	`string`	No	Required on create.
`parent_id`	`integer`	No	0 for the top level.
`code`	`string`	No
`alias`	`string`	No	Made from the title when empty.
`description`	`string`	No
`published`	`integer`	No	One of `0`, `1`.

{
    "title": "Linear algebra"
}

Responses

`200` — Saved.

{
    "data": {
        "id": 1
    }
}

Field	Type	Meaning
`data.id`	`integer`

Errors

Status	Code	When
`400`	`BAD_REQUEST`	The body failed validation, or is not a JSON object (`INVALID_JSON`).
`401`	`INVALID_TOKEN`	No token (`MISSING_TOKEN`), or one that is wrong, expired, revoked, or whose owner can no longer sign in (`INVALID_TOKEN`).
`403`	`MISSING_SCOPE`	The token is valid but this request is not allowed, and `code` says why: `MISSING_SCOPE` (the token lacks the scope), `FORBIDDEN` (the owner's role does not allow it), `ACCESS_DENIED` (the owner cannot manage Next Exams), `API_DISABLED` (the API Tokens app is off), `APP_DISABLED` (the feature's app is off — `meta.app` names it), `ACCOUNT_UNUSABLE` (the owner is blocked or must reset their password), `DEMO_LOCKED` (a demo site).
`404`	`NOT_FOUND`	No record has this id.

Examples

curl

curl -s -X PATCH "https://your-site.example/api/index.php/v1/nextexams/subjects/1" \
  -H "Authorization: Bearer $API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"title":"Linear algebra"}'

PHP

<?php
$ch = curl_init('https://your-site.example/api/index.php/v1/nextexams/subjects/1');

curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'PATCH',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'Authorization: Bearer ' . getenv('API_TOKEN'),
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS     => '{"title":"Linear algebra"}',
]);

$response = json_decode(curl_exec($ch), true);
curl_close($ch);

JavaScript

const API_TOKEN = process.env.API_TOKEN;

const response = await fetch("https://your-site.example/api/index.php/v1/nextexams/subjects/1", {
  method: 'PATCH',
  headers: {
    "Authorization": `Bearer ${API_TOKEN}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "title": "Linear algebra"
  }),
});
const data = await response.json();