GetBrandsViewBlock.cs

using System;
using System.Linq;
using System.Threading.Tasks;
using Sitecore.Commerce.Core;
using Sitecore.Commerce.EntityViews;
using Sitecore.Framework.Conditions;
using Sitecore.Framework.Pipelines;
using Sitecore.Services.Examples.Entities.Entities;

namespace Sitecore.Services.Examples.Entities.Pipelines.Blocks
{
    [PipelineDisplayName("GetBrandsViewBlock")]
    public class GetBrandsViewBlock : PipelineBlock<EntityView, EntityView, CommercePipelineExecutionContext>
    {
        private readonly IFindEntitiesInListPipeline _findEntitiesInListPipeline;

        public GetBrandsViewBlock(IFindEntitiesInListPipeline findEntitiesInListPipeline)
        {
            _findEntitiesInListPipeline = findEntitiesInListPipeline;
        }

        public override async Task<EntityView> Run(EntityView entityView, CommercePipelineExecutionContext context)
        {
            Condition.Requires(entityView).IsNotNull($"{Name}: The argument cannot be null.");
            var entityViewArgument = context.CommerceContext.GetObjects<EntityViewArgument>().FirstOrDefault();
            var viewName = entityViewArgument?.ViewName;
            if (string.IsNullOrEmpty(viewName) || !entityViewArgument.ViewName.Equals("Brands", StringComparison.OrdinalIgnoreCase) && !entityViewArgument.ViewName.Equals("BrandsDashboard", StringComparison.OrdinalIgnoreCase))
            {
                return await Task.FromResult(entityView);
            }

            if (!entityViewArgument.ViewName.Equals("BrandsDashboard", StringComparison.OrdinalIgnoreCase))
            {
                await Task.FromResult(entityView);
            }
               
            var brandsView = new EntityView()
            {
                EntityId = string.Empty,
                ItemId = string.Empty,
                Name = "All Brands",
                DisplayRank = 100
            };

            entityView.ChildViews.Add(brandsView);

            brandsView.UiHint = "Table";
            var brandsResult = await _findEntitiesInListPipeline.Run(new FindEntitiesInListArgument(typeof(Brand), CommerceEntity.ListName<Brand>(), 0, 2147483647), context);

            foreach (var brandEntity in brandsResult.List.Items)
            {
                var brand = brandEntity as Brand;
                var summaryEntityView = new EntityView()
                {
                    EntityId = brand.Id,
                    ItemId = brand.Id,
                    DisplayName = brand.DisplayName,
                    Name = "Summary"
                };

                var viewProperties = summaryEntityView.Properties;

                var viewProperty = new ViewProperty()
                {
                    Name = "ItemId",
                    RawValue = brand.Id,
                    IsHidden = true,
                    IsReadOnly = true
                };
                viewProperties.Add(viewProperty); 

                var displayNameProperty = new ViewProperty()
                {
                    Name = "Name",
                    RawValue = brand.Name,
                    IsReadOnly = true,
                    UiType = "EntityLink"
                };
                viewProperties.Add(displayNameProperty);

                var descriptionProperty = new ViewProperty()
                {
                    Name = "Displayname",
                    RawValue = brand.DisplayName,
                    IsReadOnly = true,
                    UiType = "string"
                };
                viewProperties.Add(descriptionProperty);

                var dateCreatedProperty = new ViewProperty()
                {
                    Name = "DateCreated",
                    RawValue = brand.DateCreated,
                    IsReadOnly = true
                };
                viewProperties.Add(dateCreatedProperty);

                var dateUpdated = new ViewProperty()
                {
                    Name = "DateUpdated",
                    RawValue = brand.DateUpdated,
                    IsReadOnly = true
                };

                viewProperties.Add(dateUpdated);
                brandsView.ChildViews.Add(summaryEntityView);
            }
            return await Task.FromResult(entityView);
        }
    }
}