I have a model that contains basic information. However, my View requires more information just for display so I think that a ViewModel is needed here to display that extra information. However, should I add the Validation attributes in the model so that when I perform Code-First migration, it automatically creates the database for me with the correct datatype of each columns or should I add the Validation attributes to the ViewModel since the form should validate the filled information?

public class Module
{
    [Key]
    public int id { get; set; }

    [Required]
    [StringLength(100)]
    [Column(TypeName = "varchar")]
    [Display(Name="Module Name")]
    public string ModuleName { get; set; }
}


public class ModuleViewModel
{
    [Key]
    public int id { get; set; }

    [Required]
    [StringLength(30)]
    [Column(TypeName="varchar")]
    [Display(Name="Module ID")]
    public string ModuleID { get; set; }

    [Required]
    [StringLength(100)]
    [Column(TypeName = "varchar")]
    [Display(Name="Module Name")]
    public string ModuleName { get; set; }

    //To populate dropdownlist 
    public List<SelectListItem> ModuleLevelList { get; set; }

}

Do I really need a ViewModel in this case?

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