CODEWITHSUNDEEP
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madcapnmckay
madcapnmckay

Reputation: 15984

Customizing orchard theme parts

I am trying to write a custom theme for orchard and am not having much success so far. I have read Bertrand Le Roy's article on part alternates but I can't seem to get it to work.

I am displaying a list of recent blog posts on the front page, pretty standard. I wish to change the markup produced by the meta data part i.e the time format.

I have written a IShapeTableProvider to create blog specific alternates for the metadata summary part.

public class MetaDataShapeProvider : IShapeTableProvider
{
    private readonly IWorkContextAccessor workContextAccessor;

    public MetaDataShapeProvider(IWorkContextAccessor workContextAccessor)
    {
        this.workContextAccessor = workContextAccessor;
    }

    public void Discover(ShapeTableBuilder builder)
    {
        builder
          .Describe("Parts_Common_Metadata_Summary")
          .OnDisplaying(displaying =>
          {
              ContentItem contentItem = displaying.Shape.ContentItem;
              if (contentItem != null)
                displaying.ShapeMetadata.Alternates.Add("Metadata__" + contentItem.ContentType);
          });
    }
}

This is being caught correctly but the contentItem is null. Should I just create an alternate with a fixed name like "Metadata-BlogPost" and use that, to make this general purpose it should really be a dynamic name so I can use another alternate template elsewhere.

Thanks,

Ian

Upvotes: 2

Views: 903

Answers (1)

Piotr Szmyd
Piotr Szmyd

Reputation: 13366

Try taking the content item from content part for which the shape is rendered, like:

displaying.Shape.ContentPart.ContentItem;

Instead of

displaying.Shape.ContentItem;

The Parts_Common_Metadata_Summary shape gets a related content part object passed as a named parameter ContentPart, so that should do.

HTH

Upvotes: 1

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