list-to-subticket.user.js

// ==UserScript==
// @name         List to redmine ticket
// @namespace    https://redmine.loom.de
// @version      0.1
// @updateURL    https://gist.github.com/loominade/078521409ca84345b133b451f57af78d/raw/02ca789c973667147e393c9e132f185e8f6a053e/list-to-subticket.user.js
// @downloadURL  https://gist.github.com/loominade/078521409ca84345b133b451f57af78d/raw/02ca789c973667147e393c9e132f185e8f6a053e/list-to-subticket.user.js
// @description  create tickets from lists
// @author       You
// @match        https://redmine.loom.de/*
// @grant        none
// ==/UserScript==

function createTicketPath(subject) {
    let subtaskLink = document.querySelector('#issue_tree > .contextual > a');
    return subtaskLink.href + '&issue[subject]=' + encodeURIComponent(subject);
}

let init = function() {
    let lists = document.querySelectorAll('.wiki ul');
    for (let list of lists) {
        let button = document.createElement('button');
        button.innerText = 'Diese Liste in Untertickets umwandeln';
        list.parentNode.insertBefore(button, list.nextSibling);
        button.onclick = () => {
            for (let item of list.children) {
                let del = item.querySelector('del');
                if (del) {
                    continue;
                }

                fetch(createTicketPath(item.innerText)).then(function (response) {
                    // The API call was successful!
                    return response.text();
                }).then(function (html) {

                    // Convert the HTML string into a document object
                    let parser = new DOMParser();
                    let doc = parser.parseFromString(html, 'text/html');
                    let issueForm = doc.body.querySelector('#issue-form');
                    let issueFormData = new FormData(issueForm);
                    fetch(issueForm.action, {
                        method: issueForm.method,
                        body: issueFormData
                    })
                        .then(response => response.json())
                        .then(data => console.log(data))
                        .catch(error => console.log(error.message))
                        .finally(() => console.log("Done"));

                }).catch(function (err) {
                    // There was an error
                    console.warn('Something went wrong.', err);
                });
            }
        };
    }
};

document.addEventListener('DOMContentLoaded',init());