Angularjs 嵌套的ng repeat始终显示数组中的最后一项
我需要在两个表中显示类别和子类别的列表。用于以HTML格式显示类别数据:Angularjs 嵌套的ng repeat始终显示数组中的最后一项,angularjs,ng-repeat,Angularjs,Ng Repeat,我需要在两个表中显示类别和子类别的列表。用于以HTML格式显示类别数据: <tr ng-repeat="item in addNodeCtrl.categoryData track by $index"> <td>{{item.name}}</td> <td> <input type="checkbox" ng-model="item.active"> 这里的问题是,当我激活第一个类别开关时,会填充子类别,但当激活第二个类别开
<tr ng-repeat="item in addNodeCtrl.categoryData track by $index">
<td>{{item.name}}</td>
<td>
<input type="checkbox" ng-model="item.active">
这里的问题是,当我激活第一个类别开关时,会填充子类别,但当激活第二个类别开关时,第一组子类别也会更改,并列出激活的第二个类别的子类别
请查找以下类别的JSON数据:
{
"categoryInfoes": {
"categoryInfo": [
{
"active": "true",
"description": "category 1",
"id": "1",
},
{
"active": "true",
"description": "category 2",
"id": "2",
},
{
"active": "true",
"description": "category 3",
"id": "3",
}
]
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "1 - subcategory 1",
},
{
"active": "true",
"name": "1 - subcategory 2",
},
{
"active": "true",
"name": "1 - subcategory 3",
},
{
"active": "true",
"name": "1 - subcategory 4",
}
],
"active": "true",
"description": "category 1",
"id": "1",
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "2 - subcategory 1",
},
{
"active": "true",
"name": "2 - subcategory 2",
},
{
"active": "true",
"name": "2 - subcategory 3",
},
],
"active": "true",
"description": "category 2",
"id": "2",
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "3 - subcategory 1",
},
{
"active": "true",
"name": "3 - subcategory 2",
},
{
"active": "true",
"name": "3 - subcategory 3",
},
],
"active": "true",
"description": "category 3",
"id": "3",
}
}
请在下面找到子类别的JSON:
{
"categoryInfoes": {
"categoryInfo": [
{
"active": "true",
"description": "category 1",
"id": "1",
},
{
"active": "true",
"description": "category 2",
"id": "2",
},
{
"active": "true",
"description": "category 3",
"id": "3",
}
]
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "1 - subcategory 1",
},
{
"active": "true",
"name": "1 - subcategory 2",
},
{
"active": "true",
"name": "1 - subcategory 3",
},
{
"active": "true",
"name": "1 - subcategory 4",
}
],
"active": "true",
"description": "category 1",
"id": "1",
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "2 - subcategory 1",
},
{
"active": "true",
"name": "2 - subcategory 2",
},
{
"active": "true",
"name": "2 - subcategory 3",
},
],
"active": "true",
"description": "category 2",
"id": "2",
}
}
{
"subcategoryDetails": {
"subCategorys": [
{
"active": "true",
"name": "3 - subcategory 1",
},
{
"active": "true",
"name": "3 - subcategory 2",
},
{
"active": "true",
"name": "3 - subcategory 3",
},
],
"active": "true",
"description": "category 3",
"id": "3",
}
}
有人能帮我吗
更新:
我创建了一个Plunker来演示这一点:
如果您在Plunk中看到,如果您在选中“类别1”之后选中“类别2”,则类别1和类别2的子类别都会更新。第3类的情况也一样。最后一个项目的子类别会到处更新。
请帮我解决这个问题,让我知道我做错了什么,这里的问题是,您正在将子类别加载到范围中,然后在每次选择类别时更改范围中的值。就Angular而言,您只想多次重复和显示该信息。解决此问题的一种方法是将子类别嵌套到其父类别对象中,并将ng repeat绑定到其父类别的子类别 如果数据量太大,无法一次加载所有内容,甚至可以在选择这些内容时动态加载它们 让我知道这是否有意义 --编辑-- 因为我已经一天没有你的消息了,所以我决定添加一个plunkr来告诉你我在说什么: 这是控制器:
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope,$http) {
// I made the subcategory data an array
$scope.subcategoryData = [];
$http.get("data.json")
.then(function(response) {
$scope.categoryData = response.data;
});
$scope.getsubCategory = function (categoryid) {
$http.get("data"+categoryid+".json")
.then(function(response) {
// the subcategories are keyed on the category Id
// and updated each time the method is called
$scope.subcategoryData[categoryid] = response.data;
console.log($scope.subcategoryData[categoryid]);
})
};
});
这是您的html:
<table ng-repeat="item in categoryData.categorydetail | filter:{active:true} track by $index" >
<tbody>
<tr>
<td>{{item.name}}></td>
<td ng-init="getsubCategory(item.id)">
<table>
<!-- here, I key the subcategoryData in the loop on the Item id. Voila, now it works -->
<tr ng-repeat="item1 in subcategoryData[item.id].subcategoryinfo track by $index">
<td>{{item1.subname}}</td>
<td><input type="checkbox" ng-model="item1.subactive"></td>
</tr>
</table>
</td>
</tr>
</tbody>
</table>
{{item.name}}>
{{item1.subname}
不清楚
如何工作您可以忽略此开关。我为此添加了一个角度开关库。我已经编辑了代码,建议您在中为此创建一个演示。如果不在开发人员中查看UI和检查,很难提供帮助tools@charlietfl,我创建了一个Plunker来演示这一点。在原始问题中的链接Maurice,我已经删除了上面的查询。请参阅原始问题中的新Plunker链接,它演示了我面临的问题。我明白您的观点,将子类别嵌套在父类别对象中,但我的项目中的后端是一个独立的团队,数据模型的设计与此类似,并在其他地方使用。所以我不确定改变这一点是否可行。请告诉我当前数据模型是否有解决方案。无论如何,谢谢你的建议,这是绝对可行的。在每个类别对象中都有一个最初设置为null的数组。当用户选择一个类别时,您在控制器中运行一个方法来检查该子类别数组。如果数组为null,则它会调用您的Web服务以获取所选类别的子类别。如果没有,则返回一个空数组。如果有子类别,则返回所需的子类别。然后,将第二个ng repeat绑定到作为项目一部分的子类别数组。或者,在控制器中创建一个数组,该数组键入父类别Id,然后根据类别Id将第二个ng repeat绑定到该数组。@VijayMenon-我已经用一个可用的plunkr和代码示例更新了上面的答案。请检查,如果您认为这解决了您的问题,请将我的答案标记为已接受的答案。谢谢