Basic comments on announcements

StudentHouseDashboard/HouseData/Repositories/CommentRepository.cs

@@ -0,0 +1,38 @@
+using System.Data.SqlClient;
+using StudentHouseDashboard.Models;
+
+namespace StudentHouseDashboard.Repositories;
+
+public class CommentRepository
+{
+    public CommentRepository()
+    {
+        
+    }
+
+    public List<Comment> GetAllCommentsOnAnnouncement(int announcementID)
+    {
+        List<Comment> comments = new List<Comment>();
+        using (SqlConnection connection = SqlConnectionHelper.CreateConnection())
+        {
+            string sql = "SELECT c.ID, c.Author, c.Description, c.Title, c.PublishDate, " +
+                         "u.ID UserID, u.Name UserName, u.Password, u.Role FROM AnnouncementsComments ac " +
+                         "INNER JOIN Comments c ON c.ID = ac.CommentID " +
+                         "INNER JOIN Users u ON u.ID = c.Author " +
+                         "WHERE ac.AnnouncementID = @announcementID";
+            SqlCommand sqlCommand = new SqlCommand(sql, connection);
+            sqlCommand.Parameters.AddWithValue("@announcementID", announcementID);
+            var reader = sqlCommand.ExecuteReader();
+            while (reader.Read())
+            {
+                comments.Add(new Comment((int)reader["ID"], 
+                    new User((int)reader["UserID"], reader["UserName"].ToString(), 
+                        reader["Password"].ToString(), (UserRole)reader["Role"]), 
+                    reader["Description"].ToString(), reader["Title"].ToString(), 
+                    (DateTime)reader["PublishDate"]));
+            }
+        }
+
+        return comments;
+    }
+}