Clash Royale CLAN TAG#URR8PPP

attempted to assign id from null one-to-one property: ContentItemRecord - Orchard CMS

I'm writing the module for Orchard CMS.

There are several tables. In Migrations.cs:

It works fine:

SchemaBuilder.CreateTable("CustomerPartRecord", table => table
.ContentPartRecord()
.Column<string>("FirstName", c => c.WithLength(50))
.Column<string>("LastName", c => c.WithLength(50))
.Column<string>("Title", c => c.WithLength(10))
.Column<DateTime>("CreatedUtc")
);

ContentDefinitionManager.AlterPartDefinition("CustomerPart", part => part
.Attachable(false)
);

ContentDefinitionManager.AlterTypeDefinition("Customer", type => type
.WithPart("CustomerPart")
.WithPart("UserPart")
);
return 6;


But it doesn't work:

SchemaBuilder.CreateTable("OrderPartRecord", t => t
.ContentPartRecord()
.Column<int>("CustomerId", c => c.NotNull())
.Column<DateTime>("CreatedAt", c => c.NotNull())
.Column<decimal>("SubTotal", c => c.NotNull())
.Column<string>("Status", c => c.WithLength(50).NotNull())
);

ContentDefinitionManager.AlterPartDefinition("OrderPart", part => part
.Attachable(false)
);

ContentDefinitionManager.AlterTypeDefinition("Order", type => type
.WithPart("OrderPart")
);


There's error when I try to add Order. Error: attempted to assign id from null one-to-one property: ContentItemRecord What's wrong?

UPD:

Handler:

public class OrderPartHandler : ContentHandler

public OrderPartHandler(IRepository<OrderPartRecord> repository)

Filters.Add(StorageFilter.For(repository));




And creating Order:

_orderRepository.Create(order);


3 Answers
3

You should never create a record yourself for a part record. If it's meant to be created without a content item, make it a regular record, not a content part record. Content part records need to always be associated with a content item and be created through the content manager, not the repository directly.

As I've guessed, you are trying to create an Order using the repository, which results in the error if you don't take enough care. To solve the problem, use the ContentManager to create the order since Order is actually a content item.

PS:/ This error is related to nHibernate, specifically regarding the association between entites. Read this link for more information: Hibernate : attempted to assign id from null one-to-one property: employee

actually you can solve this problem by assigning the missing parameter to your part record it just needs to fill the order.ContentPartRecord = your_content_item.Record;

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