Question

应用程序（AngularJS 1.5.11，https://codepen.io/loenko/pen/qPOWRp）是具有可拖动项目的列表组（使用来自相应程序包https://github.com/marceljuenemann/angular-drag-and-drop-lists的dnd-list指令实现）。

所有三个列表中的项目来自同一个项目对象数组。通过过滤项目列表＆＃39;将它们放入相应的列表中。属性。

在拖放项目后对列表中的项目进行排序时出现问题。他们应该（我希望他们）准确地放置在他们被丢弃的地方，但他们会自动排序（被删除的项目被推到列表的末尾）。

有没有办法在不创建任何其他排序数组的情况下实现此类功能，更改实施包和更改数据模型（它是预定义的）？

无论如何，我会感谢所有其他解决方案！

列表结构如下：

<div ng-repeat="list in lists">
        <ul dnd-list="list" 
            dnd-drop="callback({targetName: list.name})">
            <li ng-repeat="item in items | filter:item.list=list.name" 
                dnd-draggable="item"
                dnd-callback="item.list = targetName">
                {{item.name}}
            </li>
        </ul>
</div>

数据模型是：

$scope.lists=[
        {name:"List 1"}, {name:"List 2"}, {name:"List 3"}
    ];
$scope.items=[
        {name:"Item 1",list:"List 1"}, {name:"Item 2",list:"List 2"}, {name:"Item 3",list:"List 3"}
    ];

＆＃13;

angular.module('app', ['dndLists'])
.controller('mainCtrl', function($scope){
	$scope.lists=[
		{name:"List 1"}, {name:"List 2"}, {name:"List 3"}
	];
	$scope.items=[
		{name:"Item 1",list:"List 1"},{name:"Item 2",list:"List 2"},{name:"Item 3",list:"List 3"}
	];
	$scope.addItem = function() {
		var newItemIndex = $scope.items.length+1;
		var newItemName = prompt("Enter new item name", "Item "+newItemIndex);
		if (newItemName == null || newItemName == "") {
			console.log("User cancelled the prompt.");
		} else {
			$scope.items.push({name:newItemName,list:"List 2"});
		}
	};
	$scope.clear = function() {
		var confClear = confirm("Are you sure you want to delete all the items?")
		if (confClear = true) $scope.items = [];
	}
});

＆＃13;

body {
  background-color: whitesmoke;
}

.toolbar {
  width: 100%;
  background: lightgray;
  height: 60px;
  margin-bottom: 15px;
}
.toolbar button {
  height: 40px;
  width: 160px;
  margin-top: 8px;
  margin-left: 10px;
  border-radius: 8px;
  border: none;
  box-shadow: 2px 2px 3px green;
  outline-style: none;
  background-color: lightgreen;
  font-weight: bold;
  font-size: 18px;
  color: white;
}
.toolbar button:hover {
  background-color: #64e764;
}

ul[dnd-list] {
  min-height: 40px;
  list-style-type: none;
  padding: 5px;
  margin: 10;
  position: relative;
  border: 2px solid lightgray;
  box-sizing: border-box;
  width: 70%;
}
ul[dnd-list] .dndDraggingSource {
  display: none;
}
ul[dnd-list] .dndDragging {
  opacity: 0.7;
}
ul[dnd-list] .dndPlaceholder {
  min-height: 40px;
  box-sizing: border-box;
  border: 2px dotted gray;
}

.list {
  margin-left: 10px;
}

.item {
  background-color: lightgreen;
  color: white;
  width: 100%;
  height: 40px;
  margin-top: 5px;
  margin-bottom: 5px;
}
.item .item-name {
  line-height: 1.9;
  margin-left: 5px;
}

.list-name {
  color: gray;
}

＆＃13;

<!DOCTYPE html>
<html >
<head>
  <meta charset="UTF-8">
  <title>Sorting items in lists (d'n'd issue)</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">

  
      <link rel="stylesheet" href="css/style.css">

  
</head>

<body>
  <div ng-app="app" ng-controller="mainCtrl">
	<div class="toolbar">
		<button ng-click="addItem()">ADD ITEM</button>
		<button ng-click="clear()">CLEAR LIST</button></div>
	<div class="list" ng-repeat="list in lists">
		<div class="list-name">{{list.name}}</div>
		<ul dnd-list="list" 
				dnd-drop="callback({targetName: list.name})">
			<li class="item" 
					ng-repeat="item in items | filter:item.list=list.name" 
					dnd-draggable="item"
					dnd-callback="item.list = targetName">
				<div class="item-name">{{item.name}}</div>
			</li>
		</ul>
	</div>
</div>
  <script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.11/angular.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/angular-drag-and-drop-lists/2.1.0/angular-drag-and-drop-lists.min.js'></script>

    <script  src="js/index.js"></script>

</body>
</html>

＆＃13;

Answer 1

您好我知道这不完全是您提出的问题，但我使用了您的代码，如果您对某些更改感到满意，例如代码调整和示例将您的2个列表组合在一起，如下所示：

[
        {
            name: "Test List One",
            items: [
                {
                    name: 'Some item 1',
                    value: 1000
                },
                {
                    name: 'Some item 2',
                    value: 2000
                },
            ]
        },
      {
            name: "Test List Two",
            items: [
                {
                    name: 'Some item 3',
                    value: 3000
                },
                {
                    name: 'Some item 4',
                    value: 4000
                },
            ]
        }
    ];

看看这里，https://codepen.io/anon/pen/WZQbPm?editors=1010 如果你需要从新的JSON结构中获取一些项目，我还添加了一些辅助函数。

很抱歉，如果这不是您提出的问题，但我个人认为JSON更改更好，在函数中编写代码并将它们暴露给$ scope然后每次都写$ scope.someFunction会更好。 / p>

按列表特定项目字段对多个列表中的列表项目进行排序

1 个答案: