Added some helper functions to make removing files and folders in a Snapshot object easier.

DataOrganizer/DB.cs

@@ -24,13 +24,18 @@ namespace DataOrganizer
 
             ConnectionString = $"Data Source={DatabasePath}";
 
-            if (!Directory.Exists(new FileInfo(DatabasePath).Directory.FullName))
+            if (!File.Exists(DatabasePath))
             {
                 Directory.CreateDirectory(new FileInfo(DatabasePath).Directory.FullName);
                 CreateDatabase();
             }
         }
 
+        public void DeleteDatabase()
+        {
+            if (File.Exists(DatabasePath)) File.Delete(DatabasePath);
+        }
+
         private void CreateDatabase()
         {
             //TODO: this is tmp
@@ -345,6 +350,26 @@ namespace DataOrganizer
             }
         }
 
+        public string GetRootPathById(int id)
+        {
+            var query = @"SELECT path FROM folder_root WHERE root_id = @ID";
+
+            using (var connection = new SqliteConnection(ConnectionString))
+            {
+                using (var command = new SqliteCommand(query, connection))
+                {
+                    command.Parameters.AddWithValue("ID", id);
+                    connection.Open();
+
+                    var reader = command.ExecuteReader();
+
+                    reader.Read();
+
+                    return reader["path"].ToString();
+                }
+            }
+        }
+
         public bool UpdateNamingPatterById(int id, string newPattern)
         {
             var query = @"UPDATE main.naming_pattern SET regex = @pattern WHERE pattern_id = @ID";
@@ -417,7 +442,7 @@ namespace DataOrganizer
                     {
                         foreach (var file in files)
                         {
-                            command.Parameters.AddWithValue("FullPath", file.PathNoRoot.Remove(0, rootLength));
+                            command.Parameters.AddWithValue("FullPath", file.PathNoRoot.Remove(0, rootLength + 1)); //Remove the root and the trailing slash that the root folder would have.
                             command.Parameters.AddWithValue("Name", file.Name);
                             command.Parameters.AddWithValue("Size", file.Size);
                             command.Parameters.AddWithValue("DateCreated", file.CreationDate);