notification service and user management improvements

Oqtane.Server/Repository/NotificationRepository.cs

@@ -0,0 +1,67 @@
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+using Oqtane.Models;
+
+namespace Oqtane.Repository
+{
+    public class NotificationRepository : INotificationRepository
+    {
+        private TenantDBContext db;
+
+        public NotificationRepository(TenantDBContext context)
+        {
+            db = context;
+        }
+            
+        public IEnumerable<Notification> GetNotifications(int SiteId, int FromUserId, int ToUserId)
+        {
+            if (ToUserId == -1 && FromUserId == -1)
+            {
+                return db.Notification
+                    .Where(item => item.SiteId == SiteId)
+                    .Where(item => item.IsDelivered == false)
+                    .Include(item => item.FromUser)
+                    .Include(item => item.ToUser)
+                    .ToList();
+            }
+            else
+            {
+                return db.Notification
+                    .Where(item => item.SiteId == SiteId)
+                    .Where(item => item.ToUserId == ToUserId || ToUserId == -1)
+                    .Where(item => item.FromUserId == FromUserId || FromUserId == -1)
+                    .Include(item => item.FromUser)
+                    .Include(item => item.ToUser)
+                    .ToList();
+            }
+        }
+
+        public Notification AddNotification(Notification Notification)
+        {
+            db.Notification.Add(Notification);
+            db.SaveChanges();
+            return Notification;
+        }
+
+        public Notification UpdateNotification(Notification Notification)
+        {
+            db.Entry(Notification).State = EntityState.Modified;
+            db.SaveChanges();
+            return Notification;
+        }
+
+        public Notification GetNotification(int NotificationId)
+        {
+            return db.Notification.Find(NotificationId);
+        }
+
+        public void DeleteNotification(int NotificationId)
+        {
+            Notification Notification = db.Notification.Find(NotificationId);
+            db.Notification.Remove(Notification);
+            db.SaveChanges();
+        }
+    }
+
+}