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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?: ITask[],
   links?: ILInk[]
  };
}) => 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 pass it to the component by calling the provide-data action.

import { useState, useEffect } from "react";
import { Gantt } from "@svar-ui/react-gantt";

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

export default function App() {
  const [tasks, setTasks] = useState([]);
  const [links, setLinks] = useState([]);

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

  return <Gantt init={init} tasks={tasks} links={links} />;
}

Related articles: How to access Gantt API