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我有一系列的產品:angular2實現管根據選擇的屬性數組對象進行排序
public sort_criteria: any='';
public products: any = [
{title: 'Product_1', desc: 'Lorem Ipsum is simply dummy text of the printing and typesetting industry', img: '../assets/prod_1.jpg', property_1: 50, property_2: 6, property_3: 0, property_4: 76, property_5: 54, property_6: 87, property_7: 0},
{title: 'Product_2', desc: 'Lorem Ipsum has been the industrys standard dummy text ever since the 1500s', img: '../assets/prod_2.jpg', property_1: 0, property_2: 0, property_3: 65, property_4: 0, property_5: 0, property_6: 7, property_7: 88},
{title: 'Product_3', desc: 'It has survived not only five centuries but also the leap into electronic typesetting', img: '../assets/prod_3.jpg', property_1: 0, property_2: 97, property_3: 0, property_4: 56, property_5: 0, property_6: 0, property_7: 86},
{title: 'Product_4', desc: ' It was popularised in the 1960s with the release of Letraset sheets containing,', img: '../assets/prod_4.jpg', property_1: 90, property_2: 25, property_3: 56, property_4: 64, property_5: 0, property_6: 98, property_7: 0},
]
public sort_according_to: any=['Product 1', 'Product 2', 'Product 3', 'Product 4']
setSortCriteria(criteria){
switch (criteria) {
case "Product 1":
alert(3)
break;
case "Product 2":
alert(2)
break;
case "Product 3":
alert(3)
break;
case "Product 4":
alert(4)
break;
default:
break;
}
}
我的用戶將選擇從7種性能的特性之一,他選擇什麼屬性我的產品應該是按照物業的降序排序,即如果他選擇物業1,那麼我的產品序列將是4,1,2,3。
我的HTML:
<h5>Sort products according to the popularity of</h5>
<div *ngFor="let product of sort_according_to">
<mdl-radio name="productgroup" [value]='product' [(ngModel)]="sort_criteria" (change)="setSortCriteria(product)"> {{product}} </mdl-radio>
</div>
<mdl-card *ngFor="let product of products" class="demo-card-square" mdl-shadow="2">
<figure class="mdl-card__media">
<img src="{{product.img}}" alt="" />
</figure>
<mdl-card-title mdl-card-expand>
<h2 mdl-card-title-text>{{product.title}}</h2><br>
</mdl-card-title>
<mdl-card-supporting-text>
{{product.desc}}
</mdl-card-supporting-text>
<mdl-card-actions mdl-card-border>
<button mdl-button mdl-colored mdl-ripple (click)="openProductDetails()">
view
</button>
<div class="mdl-layout-spacer"></div>
<button class="mdl-button mdl-button--icon mdl-button--colored" (click)="addToCart(product)"><i class="material-icons">shopping_cart</i></button>
</mdl-card-actions>
</mdl-card>
我如何能實現在這種情況下的管道?
你如何確定的順序,你的例子不是'4,1,3,2'而非'4,1,2,3'? (因爲「2」和「3」的property_1值都是「0」) – amal
在這種情況下,只需通過產品索引 – Nitish
升序或降序索引(因爲您在尋找降序)?我想這沒關係 – amal