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単純に見える状況がありますが、解決できないか、同様の状況が解決されていません。助けてください:-)

サーバー上の次の 2 つのクラス:

public class Category
{
    [Key]
    public int CategoryId { get; set; }

    [Required]
    [MaxLength(256)]
    public string Name { get; set; }

    public Int16? Order { get; set; }

    [ForeignKey("ParentCategoryId")]
    public Category ParentCategory { get; set; }
    public int? ParentCategoryId { get; set; }

    [ForeignKey("ParentCategory")]
    [InverseProperty("ParentCategory")]
    public List<Category> SubCategories { get; set; }

    [ForeignKey("ProductId")]
    public List<Product> Products { get; set; }
}
public class Product
{
    [Key]
    public int ProductId { get; set; }

    [Required]
    [MaxLength(256)]
    public string Name { get; set; }

    [MaxLength(1024)]
    public string Desc { get; set; }

    public int ShopPrice { get; set; }
    public int WebPrice { get; set; }

    [MaxLength(32768)]
    public string ProductDetails { get; set; }
}

シンプルなコントローラーメソッド:

    [HttpGet]
    public IQueryable<Category> Categories()
    {
        return _contextProvider.Context.Categories;
    }

次のURLを使用すると：

http://localhost:49733/api/breeze/Categories?$filter=CategoryId%20eq%2010&$expand=Products

次のデータを取得します。

[{"$id":"1","$type":"Photoshwartz.Models.Category, Photoshwartz","CategoryId":10,"名前":"次の .1.1","注文":2," ParentCategory":null,"ParentCategoryId":1,"SubCategories":null,"Products":[{"$id":"2","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId" :1,"Name":"バージョン 1.1.1","Desc":"バージョン 1.1.1","ShopPrice":328,"WebPrice":295,"ProductDetails":"abcdef...."} ,{"$id":"3","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":2,"Name":"バージョン 1.1.2","Desc":" ...","ショップ価格":570,"WebPrice":513,"ProductDetails":"abcdef...."},{"$id":"4","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":3, "名前":"バージョン 1.1.3","説明":"バージョン 1.1.3","ShopPrice":579,"WebPrice":521,"ProductDetails":"abcdef...."},{" $id":"5","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":4,"Name":"1.1.4 から","Desc":"... ","ShopPrice":598,"WebPrice":538,"ProductDetails":"abcdef...."},{"$id":"6","$type":"Photoshwartz.Models.Product, Photoshwartz ","ProductId":5,"Name":"バージョン 1.1.5","Desc":"ShopPrice":362,"WebPrice":325,"ProductDetails":"abcdef...."},{"$id":"7", "$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":6,"Name":"バージョン 1.1.6","Desc":"最新バージョンの...","ShopPrice":484, "WebPrice":435,"ProductDetails":"abcdef...."},{"$id":"8","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":7, "名前":"バージョン 1.1.7","説明":"バージョン 1.1.7","ShopPrice":416,"WebPrice":374,"ProductDetails":"abcdef...."},{" $id":"9","$type":"Photoshwartz.Models.Product,Photoshwartz","ProductId":8,"Name":"1.1.8 から","Desc":"1.1.8 から購入する...","ShopPrice":281,"WebPrice":252,"ProductDetails":"abcdef ...."},{"$id":"10","$type":"Photoshwartz.Models.Product, Photoshwartz","ProductId":9,"Name":"バージョン 1.1.9"," Desc":"これは...","ShopPrice":213,"WebPrice":191,"ProductDetails":"abcdef...."}]}]Photoshwartz","ProductId":9,"Name":"1.1.9 から","Desc":"これは...","ShopPrice":213,"WebPrice":191,"ProductDetails":"abcdef ...."}]}]Photoshwartz","ProductId":9,"Name":"1.1.9 から","Desc":"これは...","ShopPrice":213,"WebPrice":191,"ProductDetails":"abcdef ...."}]}]

ご覧のとおり、9 つのアイテムを含む「Products」というナビゲーション プロパティがあります。ただし、次のコードを使用してこのデータにアクセスしようとすると、ナビゲーション以外のプロパティ (たとえば、'name()' および 'order()') が取得されますが、'products' は定義されていません (または 'Products' または 'products( )' または 'Products()'...)。これを「data.results[0]」で確認するために、「querySucceededAppend」にブ​​レークポイントを設定しました。

            var query = EntityQuery
                .from("Categories")
                .where("categoryId", "==", categoryId)
                .expand("products");
            manager.executeQuery(query).then(querySucceededAppend)

提案はありますか？

ありがとう ！

エリオール

4

1 に答える 1

0

展開方法を「Products as shown -」に変更します。

var query = EntityQuery
                .from("Categories")
                .where("categoryId", "==", categoryId)
                .expand("Products");
            manager.executeQuery(query).then(querySucceededAppend)

製品が返却されると、次のような方法で製品にアクセスします

someObservable = ko.observabled(data.results[0])

console.log(someObservable().products());
于 2013-06-24T23:55:51.913 に答える