Question

我有一个SQL数据源设置来从标准DNN“文件”表中获取某个扩展名的所有文档，但我想在要显示的文件类别上添加额外级别的规范，但不确定如何最好地进行它。请参阅下面的我当前的SQL数据源代码：

@using ToSic.Eav.DataSources
@functions
{
    // Default data initialization - should be the place to write data-retrieval code
    // In the future when routing & pipelines are fully implemented, this will usually be an external configuration-only system
    // For now, it's done in a normal event, which is automatically called by the razor host in 2SexyContent
    public override void CustomizeData()
    {
        var source = CreateSource<SqlDataSource>();
        // source.TitleField = "EntityTitle"; // not necessary, default
        // source.EntityIdField = "EntityId"; // not necessary, default
        // source.ConnectionString = "...";   // not necessary, we're using the ConnectionStringName on the next line
        source.ConnectionStringName = Content.ConnectionName;

    // Special note: I'm not selecting * from the DB, because I'm activating JSON and want to be sure that no secret data goes out
    source.SelectCommand = "Select Top 10 FileId as EntityId, FileName as EntityTitle, PublishedVersion, UniqueId, FileName, Size as Size, Extension as Extension, CreatedOnDate as Date, Folder as Folder FROM Files WHERE PortalId = @PortalId AND Extension = 'docx' OR Extension = 'xlsx' OR Extension = 'pdf'";
    source.Configuration.Add("@PortalId", Dnn.Portal.PortalId.ToString());
    Data.In.Add("FileList", source.Out["Default"]);

    // enable publishing
    Data.Publish.Enabled = true;
    Data.Publish.Streams = "Default,FileList";
    }
}

我想将2sxc Categories实体与DNN的Tab / Page Taxonomy标签/类别同步，以便允许用户在页面设置上选择DNN标签（如果与2sxc Categories实体同步）将允许我分配特定的doc / excel / pdf文件（已通过2sxc iCache连接到2sxc类别）到基于SQL数据源的应用程序，该数据源通过将taxonomy_terms表与内容项表连接，然后连接到内容项标签表连接DNN标签表。

如何更正下面的LINQ / Razor代码以过滤我的类别，只显示分配了确切“服务”类别的文件。我将使用此过滤器与分类标签“服务”（完全匹配）同步，我想链接到2sxc类别（其中已经通过2sxc iCache连接的已上传的Adam文件）与DNN分类标准术语“服务”？

@foreach (var file in AsDynamic(Data.In["FileList"]).Where(i => 
        (i.Category as List<dynamic>).Any(c => c.EntityId == FileList.EntityId)))
        {
            <li>@file.FileName</li>
        }

我已经详细查看了https://github.com/2sic/2sxc/wiki/DotNet-Query-Linq上的wiki说明，并且我坚持使用带有SQL数据源模板的foreach来获取类别过滤器的正确语法。

干杯...

Answer 1

我相信我们已经通过邮件解决了这个问题。

一个小建议：如果您使用DnnSqlDataSource而不是SqlDataSource，那么您已经拥有了当前DNN的正确连接字符串。另请参阅http://2sxc.org/en/docs/Feature/feature/4670以及https://github.com/2sic/2sxc/wiki/DotNet-DataSources-All

Answer 2

是的，我需要的过滤器如下所示：

@using ToSic.SexyContent

    @{
    // all QandA items
    var all = AsDynamic(App.Data["QandA"].List);

    // the filter value, can be set in template
    // but usually you would either get it from url with Request["urlparam"]
    // or from a setting in the view, using Content.Category
    var currentCat = "Business";

    // filter, find any which have the current category
    var filtered = all

    .Where(p => (p.Categories as List<DynamicEntity>).Any(c => AsDynamic(c).Name == currentCat)); 

}

<div class="clearfix">
        @foreach (var q in filtered)
        {
            <div class="sc-element" data-tags="@String.Join(",", ((List<DynamicEntity>)q.Categories).Select(a => AsDynamic(a).EntityId))">

                @Edit.Toolbar(Content)

                <div class="col-md-12">
                    <div class="">
                        <a href="@q.Link" class="">
                            <span class="">@q.Link</span>
                        </a>
                        <p>@q.Title</p>
                    </div>
                </div>
            </div>
        }
</div>

再次感谢！

2sxc | SQL数据源 - LINQ过滤器查询

2 个答案: