Changing for make everything work again

SeniorAssistant/Models/Heartbeat.cs

@@ -7,7 +7,6 @@ namespace SeniorAssistant.Models
     {
         [PrimaryKey]
         [NotNull]
-        [Association(ThisKey = nameof(Username), OtherKey = nameof(User.Username), CanBeNull = false)]
         public string Username { get; set; }
 
         [PrimaryKey]
@@ -15,5 +14,10 @@ namespace SeniorAssistant.Models
         public DateTime Time { get; set; }
 
         public double Value { get; set; }
+
+        /*
+        [Association(ThisKey = nameof(Username), OtherKey = nameof(User.Username), CanBeNull = false)]
+        public User UserObj { get; set; }
+        */
     }
 }

SeniorAssistant/Models/Sleep.cs

@@ -7,7 +7,6 @@ namespace SeniorAssistant.Models
     {
         [PrimaryKey]
         [NotNull]
-        [Association(ThisKey = nameof(Username), OtherKey = nameof(User.Username), CanBeNull = false)]
         public string Username { get; set; }
 
         [PrimaryKey]

SeniorAssistant/Models/Step.cs

@@ -7,7 +7,6 @@ namespace SeniorAssistant.Models
     {
         [PrimaryKey]
         [NotNull]
-        [Association(ThisKey = nameof(Username), OtherKey = nameof(User.Username), CanBeNull = false)]
         public string Username { get; set; }
 
         [PrimaryKey]

SeniorAssistant/Models/User.cs

@@ -1,18 +1,19 @@
 using LinqToDB.Mapping;
 using Microsoft.AspNetCore.Identity;
+using Newtonsoft.Json;
 
 namespace SeniorAssistant.Models
 {
     public class User : IHasUsername
     {
-        [PrimaryKey]
-        [NotNull]
+        [Column(IsPrimaryKey = true, CanBeNull = false)]
         public string Username { get; set; }
 
         [NotNull]
         public string Email { get; set; }
 
         [NotNull]
+        [JsonIgnore]
         public string Password { get; set; }
 
         [NotNull]