After migrating a .NET Core 3.1 project to .NET Core 6, I receive the following error whenever my DbContext class is called:
InvalidOperationException: Cannot use table 'AspNetRoleClaims' for entity type 'IdentityRoleClaim' since it is being used for entity type 'AspNetRoleClaims' and potentially other entity types, but there is no linking relationship. Add a foreign key to 'IdentityRoleClaim' on the primary key properties and pointing to the primary key on another entity type mapped to 'AspNetRoleClaims'.
After much searching, I have been unable to find a solution to this issue. The code I used in 3.1 worked fine, so I can only assume something has changed between then and now. Here is the code for my db context:
public partial class MyProjectContext : IdentityDbContext<IdentityUser>
{
public MyProjectContext()
{
}
public MyProjectContext(DbContextOptions<MyProjectContext> options)
: base(options)
{
}
public virtual DbSet<AspNetRoleClaims> AspNetRoleClaims { get; set; }
public virtual DbSet<AspNetRoles> AspNetRoles { get; set; }
public virtual DbSet<AspNetUserClaims> AspNetUserClaims { get; set; }
public virtual DbSet<AspNetUserLogins> AspNetUserLogins { get; set; }
public virtual DbSet<AspNetUserRoles> AspNetUserRoles { get; set; }
public virtual DbSet<AspNetUserTokens> AspNetUserTokens { get; set; }
public virtual DbSet<AspNetUsers> AspNetUsers { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<AspNetRoleClaims>(entity =>
{
entity.HasIndex(e => e.RoleId);
entity.Property(e => e.RoleId).IsRequired();
entity.HasOne(d => d.Role)
.WithMany(p => p.AspNetRoleClaims)
.HasForeignKey(d => d.RoleId);
});
modelBuilder.Entity<AspNetRoles>(entity =>
{
entity.HasIndex(e => e.NormalizedName, "RoleNameIndex")
.IsUnique()
.HasFilter("([NormalizedName] IS NOT NULL)");
});
modelBuilder.Entity<AspNetUserLogins>(entity =>
{
entity.HasKey(e => new { e.LoginProvider, e.ProviderKey });
});
modelBuilder.Entity<AspNetUserRoles>(entity =>
{
entity.HasKey(e => new { e.UserId, e.RoleId });
});
modelBuilder.Entity<AspNetUserTokens>(entity =>
{
entity.HasKey(e => new { e.UserId, e.LoginProvider, e.Name });
});
modelBuilder.Entity<AspNetUsers>(entity =>
{
entity.HasIndex(e => e.NormalizedUserName, "UserNameIndex")
.IsUnique()
.HasFilter("([NormalizedUserName] IS NOT NULL)");
});
}
partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
var envName = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
IConfigurationRoot configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
optionsBuilder.UseSqlServer(configuration.GetConnectionString("MyConnectionString"));
}
}
I have following from the Microsoft documentation here
I have tried changing the class declaration to
public partial class IdentityDbContext : IdentityDbContext<IdentityUser, IdentityRole, string>
and received the same error.
I have also tried the following to address the foreign key issue
public partial class IdentityDbContext<TUser>
: IdentityDbContext<TUser, IdentityRole, string>
where TUser : IdentityUser
However, it results in a compiler error.
I have even tried stating the foreign key explicitly in the model declaration:
modelBuilder.Entity<AspNetRoleClaims>(entity =>
{
entity.HasIndex(e => e.RoleId);
entity.Property(e => e.RoleId).IsRequired();
entity.HasOne(d => d.Role)
.WithMany(p => p.AspNetRoleClaims)
.HasForeignKey(d => d.RoleId);
//Tried to declare the relationship here
entity.HasOne(d => d.RoleId)
.WithOne(p => p.*) //compiler error regardless of entry
.HasForeignKey(d => d.*) //compiler error regardless of entry
});
Unsurprisingly, this didn't work either; I do not have any IdentityUser in my actual database.
So what am I missing here? I cannot find an easy way to troubleshoot this. It seems to trip the error the moment the Context class has finished processing, so that is where I suspect the problem may lie.
Any thoughts on how to fix this?
Edit: Here is the IdentityUser class. It is the default included with the framework.
namespace Microsoft.AspNetCore.Identity
{
//
// Summary:
// The default implementation of Microsoft.AspNetCore.Identity.IdentityUser`1 which
// uses a string as a primary key.
public class IdentityUser : IdentityUser<string>
{
//
// Summary:
// Initializes a new instance of Microsoft.AspNetCore.Identity.IdentityUser.
//
// Remarks:
// The Id property is initialized to form a new GUID string value.
public IdentityUser()
{
Id = Guid.NewGuid().ToString();
SecurityStamp = Guid.NewGuid().ToString();
}
//
// Summary:
// Initializes a new instance of Microsoft.AspNetCore.Identity.IdentityUser.
//
// Parameters:
// userName:
// The user name.
//
// Remarks:
// The Id property is initialized to form a new GUID string value.
public IdentityUser(string userName)
: this()
{
UserName = userName;
}
}
}