Angularjs 角度嵌套指令不在模型中显示新图元
正在开发一个angular应用程序,其中包括一个构建目录/嵌套树结构的功能Angularjs 角度嵌套指令不在模型中显示新图元,angularjs,angularjs-directive,Angularjs,Angularjs Directive,正在开发一个angular应用程序,其中包括一个构建目录/嵌套树结构的功能 <head> <meta charset="utf-8" /> <title>AngularJS Plunker</title> <script>document.write('<base href="' + document.location + '" />');</script> <link re
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
我遇到的问题是节点的渲染没有按预期的那样工作
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
仅当列表中已经有产品节点并且可以创建节时,产品才会呈现,但尝试将子节添加到已添加的子节不会呈现。正如预期的那样,节和产品节点被插入到模型中——只是指令似乎在原始模型中不存在的节点上不起作用
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
相关代码:
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
HTML
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
安古拉斯普朗克
文件。写(“”);
菜单
添加
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
希望您能看到其意图。问题在于,在链接指令时添加列表,这取决于调用链接函数时节的状态(仅在angular看到它时添加一次)
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
添加新的子节时,会链接该子节,但其子节列表为空,因此没有子节,并且生成的元素没有子节,因为根据调用链接函数时的子节数组状态添加管理节
,因此不会添加任何嵌套指令
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
只需删除if
语句就足够了(或者只需检查它们是否是数组):
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
顺序如下:
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
<outer-directive>
<inner-directive></inner-directive>
</outer-directive>
外部指令控制器
内部指令控制器
内部定向链接
外定向链路
这就是为什么当我试图将admin sections
指令添加到每个节的模板时,解析器进入无限循环。解析每个节意味着调用该节子节的另一个链接
,但在外部管理节
的链接函数中使用$compile
意味着将在处理外部指令后对其进行解析
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>
此外,内部指令可以要求()父指令使用其控制器。图例-我实际上删除了batarang,因为它似乎阻止了我的代码工作-删除允许出现一些预期行为,但我怀疑无限循环是实际原因。。。非常感谢-我确信这是一件简单的事情,对绑定/监视程序如何工作的理解是我明显缺乏的。
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.7/angular.js" data-semver="1.3.7"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<h1>Menu</h1>
<button ng-click="addSection()">Add</button>
<admin-sections sections="menu.sections"></admin-sections>
</body>
</html>