#3126 Implemented initial entity extensions system.

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/AbpDbContext.cs

@@ -18,6 +18,7 @@ using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Entities.Events;
 using Volo.Abp.Domain.Repositories;
 using Volo.Abp.EntityFrameworkCore.EntityHistory;
+using Volo.Abp.EntityFrameworkCore.Extensions;
 using Volo.Abp.EntityFrameworkCore.Modeling;
 using Volo.Abp.EntityFrameworkCore.ValueConverters;
 using Volo.Abp.Guids;
@@ -155,6 +156,39 @@ namespace Volo.Abp.EntityFrameworkCore
 
             ChangeTracker.CascadeDeleteTiming = CascadeTiming.OnSaveChanges;
             ChangeTracker.DeleteOrphansTiming = CascadeTiming.OnSaveChanges;
+
+            ChangeTracker.Tracked += ChangeTracker_Tracked;
+        }
+
+        protected virtual void ChangeTracker_Tracked(object sender, EntityTrackedEventArgs e)
+        {
+            FillExtraPropertiesForTrackedEntities(e);
+        }
+
+        private static void FillExtraPropertiesForTrackedEntities(EntityTrackedEventArgs e)
+        {
+            var entityType = e.Entry.Metadata.ClrType;
+            if (entityType == null)
+            {
+                return;
+            }
+
+            if (!(e.Entry.Entity is IHasExtraProperties entity))
+            {
+                return;
+            }
+
+            if (!e.FromQuery)
+            {
+                return;
+            }
+
+            var propertyNames = EntityExtensions.GetPropertyNames(entityType);
+
+            foreach (var propertyName in propertyNames)
+            {
+                entity.SetProperty(propertyName, e.Entry.CurrentValues[propertyName]);
+            }
         }
 
         protected virtual EntityChangeReport ApplyAbpConcepts()
@@ -184,9 +218,37 @@ namespace Volo.Abp.EntityFrameworkCore
                     break;
             }
 
+            HandleExtraPropertiesOnSave(entry);
+
             AddDomainEvents(changeReport, entry.Entity);
         }
 
+        private void HandleExtraPropertiesOnSave(EntityEntry entry)
+        {
+            if (entry.State == EntityState.Deleted)
+            {
+                return;
+            }
+
+            var entityType = entry.Metadata.ClrType;
+            if (entityType == null)
+            {
+                return;
+            }
+
+            if (!(entry.Entity is IHasExtraProperties entity))
+            {
+                return;
+            }
+            
+            var propertyNames = EntityExtensions.GetPropertyNames(entityType);
+
+            foreach (var propertyName in propertyNames)
+            {
+                entry.Property(propertyName).CurrentValue = entity.GetProperty(propertyName);
+            }
+        }
+
         protected virtual void ApplyAbpConceptsForAddedEntity(EntityEntry entry, EntityChangeReport changeReport)
         {
             CheckAndSetId(entry);

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Extensions/EntityExtensions.cs

@@ -0,0 +1,88 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Volo.Abp.EntityFrameworkCore.Extensions
+{
+    public class EntityExtensionInfo
+    {
+        public Dictionary<string, PropertyExtensionInfo> Properties { get; set; }
+
+        public EntityExtensionInfo()
+        {
+            Properties = new Dictionary<string, PropertyExtensionInfo>();
+        }
+    }
+
+    public class PropertyExtensionInfo
+    {
+        public List<Action<PropertyBuilder>> Actions { get; }
+
+        public Type PropertyType { get; }
+
+        public PropertyExtensionInfo(Type propertyType)
+        {
+            PropertyType = propertyType;
+            Actions = new List<Action<PropertyBuilder>>();
+        }
+    }
+
+    public static class EntityExtensions
+    {
+        private static readonly Dictionary<Type, EntityExtensionInfo> ExtensionInfos;
+
+        //TODO: Use PropertyBuilder<TProperty> instead
+
+        static EntityExtensions()
+        {
+            ExtensionInfos = new Dictionary<Type, EntityExtensionInfo>();
+        }
+
+        public static void AddProperty<TEntity>(
+            string name,
+            Type propertyType,
+            Action<PropertyBuilder> propertyBuildAction)
+        {
+            var extensionInfo = ExtensionInfos
+                .GetOrAdd(typeof(TEntity), () => new EntityExtensionInfo());
+
+            var propertyExtensionInfo = extensionInfo.Properties
+                .GetOrAdd(name, () => new PropertyExtensionInfo(propertyType));
+
+            propertyExtensionInfo.Actions.Add(propertyBuildAction);
+        }
+
+        public static void ConfigureProperties<TEntity>(EntityTypeBuilder entityTypeBuilder)
+        {
+            var entityExtensionInfo = ExtensionInfos.GetOrDefault(typeof(TEntity));
+            if (entityExtensionInfo == null)
+            {
+                return;
+            }
+
+            foreach (var propertyExtensionInfo in entityExtensionInfo.Properties)
+            {
+                var property = entityTypeBuilder.Property(propertyExtensionInfo.Value.PropertyType, propertyExtensionInfo.Key);
+                foreach (var action in propertyExtensionInfo.Value.Actions)
+                {
+                    action(property);
+                }
+            }
+        }
+
+        public static string[] GetPropertyNames(Type entityType)
+        {
+            var entityExtensionInfo = ExtensionInfos.GetOrDefault(entityType);
+            if (entityExtensionInfo == null)
+            {
+                return Array.Empty<string>();
+            }
+
+            return entityExtensionInfo
+                .Properties
+                .Select(p => p.Key)
+                .ToArray();
+        }
+    }
+}

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Modeling/AbpEntityTypeBuilderExtensions.cs

@@ -58,7 +58,7 @@ namespace Volo.Abp.EntityFrameworkCore.Modeling
             {
                 b.Property<Dictionary<string, object>>(nameof(IHasExtraProperties.ExtraProperties))
                     .HasColumnName(nameof(IHasExtraProperties.ExtraProperties))
-                    .HasConversion(new AbpJsonValueConverter<Dictionary<string, object>>())
+                    .HasConversion(new ExtraPropertiesValueConverter(b.Metadata.ClrType))
                     .Metadata.SetValueComparer(new AbpDictionaryValueComparer<string, object>());
             }
         }

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ValueConverters/AbpJsonValueConverter.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 using Newtonsoft.Json;
+using Volo.Abp.Data;
 
 namespace Volo.Abp.EntityFrameworkCore.ValueConverters
 {
@@ -7,9 +8,20 @@ namespace Volo.Abp.EntityFrameworkCore.ValueConverters
     {
         public AbpJsonValueConverter()
             : base(
-                d => JsonConvert.SerializeObject(d, Formatting.None),
-                s => JsonConvert.DeserializeObject<TPropertyType>(s))
+                d => SerializeObject(d),
+                s => DeserializeObject(s))
         {
+
+        }
+
+        private static string SerializeObject(TPropertyType d)
+        {
+            return JsonConvert.SerializeObject(d, Formatting.None);
+        }
+
+        private static TPropertyType DeserializeObject(string s)
+        {
+            return JsonConvert.DeserializeObject<TPropertyType>(s);
         }
     }
 }

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ValueConverters/ExtraPropertiesValueConverter.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Newtonsoft.Json;
+using Volo.Abp.EntityFrameworkCore.Extensions;
+
+namespace Volo.Abp.EntityFrameworkCore.ValueConverters
+{
+    public class ExtraPropertiesValueConverter : ValueConverter<Dictionary<string, object>, string>
+    {
+        public ExtraPropertiesValueConverter(Type entityType)
+            : base(
+                d => SerializeObject(d, entityType),
+                s => DeserializeObject(s))
+        {
+
+        }
+
+        private static string SerializeObject(Dictionary<string, object> extraProperties, Type entityType)
+        {
+            var copyDictionary = new Dictionary<string, object>(extraProperties);
+
+            if (entityType != null)
+            {
+                var propertyNames = EntityExtensions.GetPropertyNames(entityType);
+
+                foreach (var propertyName in propertyNames)
+                {
+                    copyDictionary.Remove(propertyName);
+                }
+            }
+
+            return JsonConvert.SerializeObject(copyDictionary, Formatting.None);
+        }
+
+        private static Dictionary<string, object> DeserializeObject(string extraPropertiesAsJson)
+        {
+            return JsonConvert.DeserializeObject<Dictionary<string, object>>(extraPropertiesAsJson);
+        }
+    }
+}

modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/IdentityDbContextModelBuilderExtensions.cs

@@ -1,6 +1,7 @@
 using System;
 using JetBrains.Annotations;
 using Microsoft.EntityFrameworkCore;
+using Volo.Abp.EntityFrameworkCore.Extensions;
 using Volo.Abp.EntityFrameworkCore.Modeling;
 using Volo.Abp.Users.EntityFrameworkCore;
 
@@ -36,6 +37,8 @@ namespace Volo.Abp.Identity.EntityFrameworkCore
                 b.Property(u => u.LockoutEnabled).HasDefaultValue(false).HasColumnName(nameof(IdentityUser.LockoutEnabled));
                 b.Property(u => u.AccessFailedCount).HasDefaultValue(0).HasColumnName(nameof(IdentityUser.AccessFailedCount));
 
+                EntityExtensions.ConfigureProperties<IdentityUser>(b);
+
                 b.HasMany(u => u.Claims).WithOne().HasForeignKey(uc => uc.UserId).IsRequired();
                 b.HasMany(u => u.Logins).WithOne().HasForeignKey(ul => ul.UserId).IsRequired();
                 b.HasMany(u => u.Roles).WithOne().HasForeignKey(ur => ur.UserId).IsRequired();