Skip to main content

provide-data

Description​

Provides new data for a branch

You should call this action to provide data for a branch.

Usage​

"provide-data": ({
  id: string|number,
  data: {
    tasks?: [],
    links?: []
  };
}) => boolean|void;

Parameters​

  • id - (required) the ID of the task for which data should be provided
  • data - (required) new data provided for a branch (the tasks and links arrays)
info

For handling the actions you can use the Event Bus methods

Example​

In the example below we listen to the request-data action with the help of the api.on() method, fetch the tasks branch data from the server and parse to the component calling the provide-data action.

<script>
    import { Gantt } from "wx-svelte-gantt";

    const server = "https://some-server";

    let api;
    let tasks = [];
    let links = [];

    Promise.all([
        fetch(server + "/tasks")
            .then(res => res.json()),
        fetch(server + "/links").then(res => res.json()),
    ]).then(([t, l]) => {
        tasks = t;
        links = l;
    });

    function init(api) {
        api.on("request-data", ev => {
        Promise.all([
            fetch(server + `/tasks/${ev.id}`)
            .then(res => res.json()),
            fetch(server + `/links/${ev.id}`).then(res => res.json()),
            ]).then(([tasks, links]) => {
                api.exec("provide-data", {
                    id: ev.id,
                    data: {
                        tasks,
                        links,
                    },
                });
            });
        });
    }
</script>

<Gantt bind:api {init} {tasks} {links} />

Related articles: How to access Gantt API