[英]AngularJS filter nested array and return parent object
I've recently started fiddling around with AngularJS. 我最近开始摆弄AngularJS。 I'm making checkbox filters for my wine store. 我正在为我的葡萄酒商店制作复选框过滤器。 An item looks like this: 一个项目看起来像这样:
{
"id": 17,
"name": "Ermelinda Freitas Reserva",
"tag_ids": [40, 12, 56, 6, 60],
"tag_names": ["Roasted", "Robust", "Blackberry", "Mouth-filling", "Animal"],
"price": 29,
"weight": "0",
"image": "1467208469_wijn1.jpg",
"stock": 57,
"year": 1998,
"special": 0,
"color_id": 1,
"color": "Red",
"region_id": 25,
"region": "Alentejo",
"country_id": 6,
"country": "Portugal",
"grape_ids": [34, 35, 20],
"grape_names": ["Castelão", "Touriga Naçional", "Cabernet Sauvignon"]
}
I've manage to make filters for countries and other non-array properties of the item like this: 我设法为该项目的国家/地区和其他非数组属性创建了过滤器,如下所示:
for(i = 0; i< wines.length; i++){
if($scope.countries.indexOf(wines[i].country) === -1) $scope.countries.push(wines[i].country);
};
But now i'm trying to make one for the grapes. 但是现在我正在为葡萄做一个。 I started off by collecting all unique values in an array as such: 我首先收集了数组中的所有唯一值,如下所示:
angular.forEach($scope.wines, function(wine){
angular.forEach(wine.grape_names, function(grape){
for(i = 0; i< wine.grape_names.length; i++){
if($scope.grapes.indexOf(wine.grape_names[i]) === -1) $scope.grapes.push(wine.grape_names[i]);
};
});
})
So now I need to check if an item has any grapes that match the selected filter and here is where I am stuck: 因此,现在我需要检查某个项目是否有与所选过滤器匹配的葡萄,这就是我遇到的问题:
$scope.filter.grape = {};
$scope.filterByGrape = function(wine){
angular.forEach(wine.grape_names, function(grape){
return $scope.filter.grape[grape] || noFilter($scope.filter.grape);
})
};
The filters : 过滤器:
<div class="col-lg-3 col-md-4 col-sm-6 " data-id="{{wine.id}}" ng-init="getQuantity(wine.id)" data-ng-repeat="wine in filteredWines =(wines | orderBy:defaultOrder | filter:filterByColor | filter:filterByCountry | filter:filterByGrape | priceRangeFilter:priceRangeSlider | yearRangeFilter:yearRangeSlider | filter:search) | start: (currentPage - 1) * itemsPerPage | limitTo:itemsPerPage">
All help is very welcome ! 所有帮助都非常欢迎!
Problem is you are only checking the first iteration of the forEach for grape_names, you return from the function there. 问题是您只在forEach的第一次迭代中检查grape_names,然后从那里的函数返回。
$scope.filter.grape = {};
$scope.filterByGrape = function(wine){
var found = noFilter($scope.filter.grape);
angular.forEach(wine.grape_names, function(grape){
found = $scope.filter.grape[grape] || found;
})
return found;
};
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