C#•2y ago

✅ Foreign key not working

Hi, I tried making a foreign key in my table, to another table which I made but it does not work as intended.

        [ForeignKey("FileName")]
        public Guid FileName { get; set; }
        public TextFileModel TextFileModel { get; set; }

        [ForeignKey("FileName")]
        public Guid FileName { get; set; }
        public TextFileModel TextFileModel { get; set; }

I tried making a filename field which is a fk to a textfilemodel, but it has instead made two separate fields:

11 Replies

Patrick•2y ago

because by convention your nav prop should be the same as the FK

:•2y ago

So it has to be TextFileModel?

Patrick•2y ago

is FileName the FK for TextFileModel?

:•2y ago

Yeah I tried this and it seems to have worked

Patrick•2y ago

        public Guid TextFileModelId { get; set; }
        public TextFileModel TextFileModel { get; set; }

        public Guid TextFileModelId { get; set; }
        public TextFileModel TextFileModel { get; set; }

:•2y ago

Alright I have another question, in my textfilemodel I have two foreign keys to the asp.net user table, and for some reason they allow nulls even though I did not specify for them to

:•2y ago

  //Author

        [ForeignKey("UserId")]
        public string AuthorId { get; set; }
        
        public IdentityUser Author { get; set; }


        //LastEditedBy

        [ForeignKey("UserId")]
        public string LastEditedById { get; set; }

        public IdentityUser LastEditedBy { get; set; }

  //Author

        [ForeignKey("UserId")]
        public string AuthorId { get; set; }
        
        public IdentityUser Author { get; set; }


        //LastEditedBy

        [ForeignKey("UserId")]
        public string LastEditedById { get; set; }

        public IdentityUser LastEditedBy { get; set; }

and thats the code

Patrick•2y ago

because strings are nullable by default [Required]

:•2y ago

Alright, thanks!

Accord•2y ago

Closed!

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✅ Foreign key not working