C#•17mo ago

❔ Make Entity Framework Property Unique

namespace Textopia.Models;

public class Blog(string slug, string? name = null, string? description = null)
{
    public Guid Id { get; set; } = Guid.NewGuid();

    public string Slug { get; set; } = slug;
    public string? Name { get; set; } = name;
    public string? Description { get; set; } = description;

    public DateTime CreatedAt { get; set; } = DateTime.Now;
    public DateTime UpdatedAt { get; set; } = DateTime.Now;    
    public DateTime? DeletedAt { get; set; }

    public ICollection<User>? Users { get; set; }
    public ICollection<Post>? Posts { get; set; }
}

namespace Textopia.Models;

public class Blog(string slug, string? name = null, string? description = null)
{
    public Guid Id { get; set; } = Guid.NewGuid();

    public string Slug { get; set; } = slug;
    public string? Name { get; set; } = name;
    public string? Description { get; set; } = description;

    public DateTime CreatedAt { get; set; } = DateTime.Now;
    public DateTime UpdatedAt { get; set; } = DateTime.Now;    
    public DateTime? DeletedAt { get; set; }

    public ICollection<User>? Users { get; set; }
    public ICollection<Post>? Posts { get; set; }
}

How can I make slugs unique!?

8 Replies

Xeretis•17mo ago

https://learn.microsoft.com/en-us/ef/core/modeling/indexes?tabs=data-annotations

Indexes - EF Core

Configuring indexes in an Entity Framework Core model

Xeretis•17mo ago

Take a look at this It has an IsUnique property Set that to true

Timo MartinsonOP•17mo ago

does not work. 😦 "Index" is not an attribute class

Angius•17mo ago

Just to make sure: are you using the old-ass non-core Entity Framework, as used with .NET Framework? Or we're talking Entity Framework Core here, with .NET Core or .NET?

Pobiega•17mo ago

assuming EF Core, please use IEntityConfiguraton classes instead of attributes for non-trivial configuration

Timo MartinsonOP•17mo ago

I am using Entity Core with .Net Core !!!

Pobiega•17mo ago

Good.

Accord•17mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Make Entity Framework Property Unique

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