[英]How group objects in array in array from ng-repeat with filter?
如何使用过滤器从ng-repeat中将数组中的对象分组?
我有一个包含对象的数组,我想按对象所在的国家/地区对这些对象进行分组。
样本:我想要这个结果:
Free : Australia, India, United States
Pay : Australia
Not Pay : Australia, India
来自:
{
"id": 1,
"offer": [
{
"id": 9806,
"country": {
"name": "Australia"
},
"code_show": [
{
"code": "Free"
},
{
"code": "Pay"
},
{
"code": "Not Pay"
}
]
},
{
"id": 9807,
"country": {
"name": "India"
},
"code_show": [
{
"code": "Free"
},
{
"code": "Not Pay"
}
]
},
{
"id": 9808,
"country": {
"name": "United States"
},
"code_show": [
{
"code": "Free"
}
]
}
],
},
{
"id": 2,
"offer": [
{
"id": 9806,
"country": {
"name": "Australia"
},
"code_show": [
{
"code": "Free"
},
{
"code": "Not Pay"
}
]
},
{
"id": 9807,
"country": {
"name": "Mexico"
},
"code_show": [
{
"code": "Free"
}
]
},
{
"id": 9808,
"country": {
"name": "United States"
},
"code_show": [
{
"code": "Free"
}
]
}
]
}
我尝试使用代码:
<ul ng-repeat="(key, value) in offer.code_show | groupBy: 'code_show.code'">
{{ key }}
<li ng-repeat="country in value">
: {{ country.name }}
</li>
</ul>
这可能在控制器中更好-主要是因为您将拥有不同的数据结构:
$scope.groupedByCode = {};
$scope.offer.forEach(function(obj) {
obj["code_show"].forEach(function(code) {
if (!$scope.groupedByCode[code]) {
$scope.groupedByCode[code] = [];
}
$scope.groupedByCode[code].push(obj);
});
});
现在,您将每个offer
对象包含在具有代码名称的键中,然后进行查看:
<ul ng-repeat="(key, value) in groupedByCode">
{{ key }}
<li ng-repeat="country in value">
: {{ country.country.name }}
</li>
</ul>
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