I'd like to create multilevel nested list to display the menu on the left side - - very similar as on oficial site: https://material-ui-next.com/. data source is in JSON where for each item there's also information about parent item and some other data - - this is the example:
{
"task_number": 1201092,
"task": "Monthly Cash Flow from Deliveries",
"task_parent_number": 1201090,
"task_parent": "Wholesale Cash Flow"
},
{
"task_number": 1201095,
"task": "Monthly Cash Flow from Fix Amounts",
"task_parent_number": 1201090,
"task_parent": "Wholesale Cash Flow"
},
{
"task_number": 1201100,
"task": "Wholesale Positions",
"task_parent_number": 1200007,
"task_parent": "Wholesale Contract Portfolio"
},
{
"task_number": 1201200,
"task": "All Wholesale Positions",
"task_parent_number": 1201100,
"task_parent": "Wholesale Positions"
}
I'am able to create an object with various nested elements - children - if they exist with followin function:
function getNestedChildren(arr, parent) {
var out = [];
for (var i in arr) {
if (arr[i].task_parent_number == parent) {
//console.log(i, arr[i].task_parent_number, arr[i].task_number);
var children = getNestedChildren(arr, arr[i].task_number);
if (children.length) {
arr[i].children = children;
}
out.push(arr[i]);
}
}
return out;
}
I've been following instructions for creating a nested list and importing it here: https://material-ui-next.com/demos/lists/#nested-list
..but I am not able to create a menu with nested elements as desired . . if someone can point me in the right direction would be great..
OK, i got this to work combining these 2 parts: