Question

在Orchard CMS中，我有一项服务从外部数据源提取数据，并将数据加载到Orchard内容部分。 Part有一个迁移，用标题部分焊接它，我有一个路由，以便通过URL命中我的控制器：

我正在使用控制器通过URL访问该项目，非常类似于博客部件控制器。但是我无法表达自己的意思...... 博客控制器类似于以下内容：

    var asset = _assetService.Get(1234);
    if (asset == null) return HttpNotFound();

    var model = _services.ContentManager.BuildDisplay(asset); 

    return new ShapeResult(this, model);

但是，如果我这样做，'BuildDisplay'方法会查找asset.ContentItem，但这是null，尽管从'ContentPart'中获取了我的部分。

我需要做什么才能显示数据？

Answer 1

如果我理解正确，您只想显示一个部分，而不是整个内容项。

要显示单个形状，您可以执行以下操作：

private readonly IAssetService _assetService;

public MyController(IShapeFactory shapeFactory, IAssetService assetService) {
    _assetService = assetService;
    Shape = shapeFactory;
}

public dynamic Shape { get; set; }

public ActionResult MyAction(int assetId) {
    var asset = _assetService.Get(1234);
    if (asset == null) return HttpNotFound();

    // the shape factory can call any shape (.cshtml) that is defined
    // this method assumes you have a view called SomeShapeName.cshtml
    var model = Shape.SomeShapeName(asset);

    return new ShapeResult(this, model);
}

!!注：这不是部件的（显示）驱动程序，它只返回给定模型的.cshtml

Answer 2

通过让我的部分派生自ContentPart，我可以使用以下Controller方法：

private readonly IAssetService _assetService;
private readonly IOrchardServices _services;

public MyController(IShapeFactory shapeFactory, IAssetService assetService, IOrchardServices services) {
    _assetService = assetService;
    _services = services;
    Shape = shapeFactory;
}

public dynamic Shape { get; set; }

public ActionResult MyAction(int assetId) {
    var asset = _assetService.Get(1234);
    if (asset == null) return HttpNotFound();

    // this method assumes you have a view called Parts.Asset.cshtml (see the AssetPartDriver)
    var model = _services.ContentManager.New("Asset");
    var item = contentItem.As<AssetPart>();
    item.Populate(asset) // Method that just populates the service loaded object into the ContentPart

    return new ShapeResult(this, _services.ContentManager.BuildDisplay(item));
}

这将使用＆＃39; AssetPartDriver＆＃39;：

public class AssetPartDriver : ContentPartDriver<AssetPart>
    {
        protected override DriverResult Display(AssetPart part, string displayType, dynamic shapeHelper)
        {
            return ContentShape("Parts_Asset", () => shapeHelper.Parts_Asset()); // Uses Parts.Asset.cshtml
        }
    }

与'Placement.info＆＃39;一起使用。文件呈现在屏幕上：

<Placement>
  <Match ContentType="Asset">
    <Match DisplayType="Detail">
      <Place Parts_Asset="Content"/>
    </Match>
  </Match>
</Placement>

迁移文件将我的Web服务部分与其他Orchard部分组合在一起：

public class Migrations : DataMigrationImpl
    {
        public int Create()
        {
            ContentDefinitionManager.AlterTypeDefinition("Asset", cfg => cfg
                .WithPart("AssetPart")
                .WithPart("AutoroutePart", builder => builder
                    .WithSetting("AutorouteSettings.AllowCustomPattern", "True"))
                .Listable()
                .Securable()
                .Creatable(false));

            ContentDefinitionManager.AlterPartDefinition("AssetPart", part => part
                .WithDescription("A part that contains details of an individual Web Service loaded asset."));
            return 1;
        }
    }

这些附加部分尚未使用，但可以在创建过程中填充并使用展示位置文件单独显示。这是我试图实现的第一步!!

Orchard CMS：从外部数据源创建内容项

2 个答案: