seangwright
commented
5 years ago I think I've also run into this issue.
My scenario involves a base class that has the [Key] annotation. My other classes inherit from this class and each have their own OData configuration.
OData configuration
var builder = new ODataConventionModelBuilder
{
ContainerName = "DefaultContainer",
Namespace = "default"
}
.EnableLowerCamelCase(NameResolverOptions.ProcessDataMemberAttributePropertyNames)
.EnableLowerCamelCase(NameResolverOptions.ProcessReflectedPropertyNames)
.EnableLowerCamelCase(NameResolverOptions.ProcessExplicitPropertyNames);Base class
public class BaseEntity
{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public Guid Id {get;set;}
}Role class
public class Role : BaseEntity
{
public string Name {get;set;}
}Role OData Configuration
builder
.EntitySet<Role>("role")
.EntityType
.HasKey(u => u.Id);The error I get when making a request to the endpoint is The EDM instance of type '[default.Role Nullable=True]' is missing the property 'id'.
When I change Role to not inherit from BaseEntity and instead annotate its own Id property with [Key] everything works.
Kizmar
davidyee
LouisMarx127
jjavierdguezas
xuzhg
Multiple conditions must be met for this issue to occur. OData (model) configuration requires:
With such configuration only the last registered entity set works correctly. Other gives error which is connected to casing of the key property name.
Assemblies affected
Microsoft.AspNet.OData 7.0.1 (and earlier probably)
Reproduce steps
Call an endpoint for other than last registered entity (for the attached solution: http://localhost:52128/AClass).
Expected result
Data returned correctly.
Actual result
An error returned with an exception (most inner message: "The EDM instance of type '[WebApiTest.Models.A Nullable=True]' is missing the property 'code'.") Json file with error result in attachment result error.json.txt.
Additional detail
Attached simple project with setup for this issue to occur. Call the api to get all AClass items (http://localhost:52128/AClass) to get the exception. WebApiTest.zip