ember-drag-sort-parent

controllers.application.js

import Ember from 'ember';
import computed from 'ember-computed'
import {A} from 'ember-array/utils'

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  items1 : computed(() =>
    A([
      {id: 1, name : 'Parent1'},
      {id: 2, name : 'Parent2'},
      {id: 8, name : 'Parent3'},
      {id: 3, name : 'Child1ofParent1', parentId: 1},
      {id: 4, name : 'Child1ofParent2', parentId: 2},
      {id: 5, name : 'Child2ofParent2', parentId: 2},
      {id: 9, name : 'Child1ofParent3', parentId: 8}
    ])
  ), 

  items2 : computed(() =>
    A([
      {id: 6, name : 'OtherList1'},
      {id: 7, name : 'OtherList2'}
    ])
  ),
   actions : {
    dragEnd ({sourceList, sourceIndex, targetList, targetIndex}) {
      if (sourceList === targetList && sourceIndex === targetIndex){
        return;
      }
      
      const item = sourceList.objectAt(sourceIndex);
      
      console.log(sourceList);
      let nodeToBeDragged = sourceList.get(sourceIndex);
      let parentId = nodeToBeDragged.parentId;

      sourceList.removeAt(sourceIndex);
      targetList.insertAt(targetIndex, item);
      
      // if parent exists
      if(parentId){
        let parentIndex = undefined;
        sourceList.forEach(function callback(currentValue, currentIndex) {
            if(currentValue.id === parentId){
              parentIndex = currentIndex;
            }
        });
         
        // move parent
        if(parentIndex > -1){
          let parentNode = sourceList.get(parentIndex);
          sourceList.removeAt(parentIndex);
          targetList.insertAt(targetIndex, parentNode);
        }
      }
    }
   }
});

styles.app.css

.github-fork-ribbon {
  position: fixed !important;
}

html, body {
  font-family: sans-serif;
}

h4 {
  margin-bottom: 10px;
}

p:first-child,
h1:first-child,
h2:first-child,
h3:first-child,
h4:first-child,
h5:first-child,
h6:first-child
{
  margin-top: 0;
}

p:last-child,
h1:last-child,
h2:last-child,
h3:last-child,
h4:last-child,
h5:last-child,
h6:last-child
{
  margin-bottom: 0;
}

.list-groups {
  display: flex;
  flex-wrap: wrap;
  margin-top: 30px;
}

.list-group-wrapper {
  flex-grow: 1;
  min-width: 600px;
  margin-bottom: 30px;
}

.list-group {
  display: flex;
}

.list {
  width: 200px;
  margin-right: 20px;
}

.list-group .dragSortList {
  background-color: #eee;
}

.dragSortItem {
  overflow: auto;
}

.the-item {
  border: 1px solid black;
  margin: 4px;
  padding: 0.2em 0.5em;
  background-color: #FFD0E9;
}

.nestedItem {
  margin: 4px;
  padding: 1em;
  border: 1px solid black;
  display: flex;
}

.nestedItem-title {
  flex-shrink: 0;
  flex-grow: 0;
  width: 100px;
}

.nestedItem .dragSortList {
  flex-shrink: 0;
  flex-grow: 1;
}

.nestedItem .dragSortList.-isExpanded {
  padding-top: 55px;
}

.nestedItem .dragSortList.-isDragging {
  outline: 2px dashed black;
  background-color: deepskyblue;
}

.nestedItem .dragSortList.-isExpanded.-isDraggingOver:before {
  top: 15px;
}

.nestedItem {
  background-color : #FFD0E9;
}
.nestedItem .nestedItem {
  background-color: #FFAAD7;
}

.nestedItem .nestedItem .nestedItem {
  background-color: #FF8CC9;
}
.nestedItem .nestedItem .nestedItem .nestedItem {
  background-color: #FF74BD;
}
.nestedItem .nestedItem .nestedItem .nestedItem .nestedItem {
  background-color: #FF60B4;
}
.nestedItem .nestedItem .nestedItem .nestedItem .nestedItem .nestedItem {
  background-color: #FF50AD;
}

.dragSortList:not(.-draggingEnabled) {
  opacity: 0.66;
}

/* Table styles */
table {
  width: 100%;
}

table.dragSortList.-isExpanded {
  padding: 15px;
  background-color: #f6f6f6;
}

table.dragSortList.-isExpanded.-isDraggingOver {
  background-color: #eee;
}

table.dragSortList.-isExpanded.-isDraggingOver:before {
  content: none;
}

tr.dragSortItem.-placeholderAbove:before,
tr.dragSortItem.-placeholderBelow:before {
  content: none;
}

tr.dragSortItem.-placeholderAbove td {
  padding-top: 25px;
}

tr.dragSortItem.-placeholderBelow td {
  padding-bottom: 25px;
}

table .the-item {
  margin: 0;
}

templates.application.hbs

<div class="list-group-wrapper">
    <h2>Simple usage</h2>

    <p>
      Sort lists, drag between lists. Won't let you drag items from/to other groups.
    </p>

    <section class="list-group">
      <article class="list">
        <h4>List 1</h4>

        {{#drag-sort-list
          items         = items1
          dragEndAction = (action 'dragEnd')
          as |item|
        }}
          <div class="the-item">
            {{item.name}}
          </div>
        {{/drag-sort-list}}
      </article>

      <article class="list">
        <h4>List 2 with drag handles</h4>

        {{#drag-sort-list
          items         = items2
          handle        = '.handle'
          dragEndAction = (action 'dragEnd')
          as |item|
        }}
          <div class="the-item">
            <span class="handle" draggable="true">☰</span>
            {{item.name}}
          </div>
        {{/drag-sort-list}}
      </article>
    </section>
  </div>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-drag-sort": "1.0.2"
  }
}