Move to person based database layout

Switch from saving the name of an order
to saving the person that added the order

Old orders are migrated and create one person
per order.

Components/Pages/GroupAdd.razor

@@ -18,7 +18,7 @@
         <div class="form-group">
             <label>
                 Name:
-                <InputText class="form-control" @bind-Value="Order!.Name"/>
+                <InputText class="form-control" @bind-Value="Name"/>
             </label>
         </div>
         <div class="form-group">
@@ -51,6 +51,7 @@
 
     private Order? Order { get; set; }
     private Decimal? Price { get; set; }
+    private String? Name { get; set; }
 
     private bool Saved { get; set; } = false;
 
@@ -69,6 +70,7 @@
     {
         Order = new();
         Price = null;
+        Name = null;
         editContext = new(Order);
         editContext.OnValidationRequested += HandleValidationRequested;
         messageStore = new(editContext);
@@ -91,9 +93,20 @@
             return;
         }
 
+        Person? person = await context.Persons.FirstOrDefaultAsync(p => p.Group == group && p.Name == Name);
+
+        if (person is null)
+        {
+            person = new Person();
+            person.Group = group;
+            person.Name = Name;
+            context.Add(person);
+        }
+
         Order!.PaymentStatus = PaymentStatus.Unpaid;
         Order!.AddedToCart = false;
         Order!.Group = group;
+        Order!.Person = person;
         context.Add(Order!);
         context.SaveChanges();
         Saved = true;
@@ -104,9 +117,9 @@
     {
         messageStore?.Clear();
 
-        if (Order!.Name == null || Order!.Name!.Length == 0 || Order!.Name!.Length > 100)
+        if (Name == null || Name!.Length == 0 || Name!.Length > 100)
         {
-            messageStore?.Add(() => Order, "You must enter a Name between 1 and 100 chars.");
+            messageStore?.Add(() => Order!, "You must enter a Name between 1 and 100 chars.");
         }
 
         if (Order!.Food == null || Order!.Food!.Length == 0 || Order!.Food!.Length > 100)

Components/Pages/GroupFinanze.razor

@@ -34,7 +34,7 @@
         {
             <tr>
                 <td>
-                    @order.Name
+                    @order.Person.Name
                 </td>
                 <td>
                     @order.GetPrice()€
@@ -105,6 +105,7 @@
         {
             Group = await _context!.Groups
                 .Include(group => group.Orders)
+                .ThenInclude(order => order.Person)
                 .SingleOrDefaultAsync(
                     c => c.GroupSlug == GroupSlug && c.AdminCode == AdminCode);
 

Components/Pages/GroupOverview.razor

@@ -39,7 +39,7 @@
         {
         <tr>
             <td>
-                @order.Name
+                @order.Person.Name
             </td>
             <td>
                 @order.Food
@@ -139,6 +139,7 @@
         {
             Group = await context.Groups
                 .Include(group => group.Orders)
+                .ThenInclude(order => order.Person)
                 .SingleOrDefaultAsync(
                     c => c.GroupSlug == GroupSlug);
 

Data/Group.cs

@@ -27,6 +27,8 @@ public class Group
     public string? PaypalUsername { get; set; }
 
     public ICollection<Order> Orders { get; } = new List<Order>();
+    public ICollection<Person> Persons { get; } = new List<Person>();
+
 
 
 }

Data/GroupContext.cs

@@ -7,6 +7,7 @@ public class GroupContext : DbContext
 {
     public DbSet<Group> Groups { get; set; }
     public DbSet<Order> Orders { get; set; }
+    public DbSet<Person> Persons { get; set; }
     private string DbPath { get; }
 
     public GroupContext()

Data/Order.cs

@@ -10,11 +10,10 @@ public class Order
 
     [Required]
     public Group Group { get; set; } = null!;
-
+    
     [Required]
-    [StringLength(100, ErrorMessage = "Name can not exceed 100 characters.")]
-    public string? Name { get; set; }
-
+    public Person Person { get; set; } = null!;
+
     [Required]
     [StringLength(100, ErrorMessage = "Food cannot exceed 100 characters.")]
     public string? Food { get; set; }

Data/Person.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace GroupOrder.Data;
+
+public class Person
+{
+    // The id is used to identify which person a given user can edit
+    // therefore we will sign a cookie with the id
+    public int Id { get; set; }
+
+    // One person can only ever exist in exactly one Group
+    [Required]
+    public Group Group { get; set; } = null!;
+
+    [Required]
+    [StringLength(100, ErrorMessage = "Name can not exceed 100 characters.")]
+    public string? Name { get; set; }
+
+    // One Person can only ever have Orders from the correct group
+    public ICollection<Order> Orders { get; } = new List<Order>();
+
+}