added better db migration support than what Subsonic provides out of the box.

Migrator.net/Migrator.Framework/Column.cs

@@ -0,0 +1,126 @@
+#region License
+
+//The contents of this file are subject to the Mozilla Public License
+//Version 1.1 (the "License"); you may not use this file except in
+//compliance with the License. You may obtain a copy of the License at
+//http://www.mozilla.org/MPL/
+//Software distributed under the License is distributed on an "AS IS"
+//basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+//License for the specific language governing rights and limitations
+//under the License.
+
+#endregion
+
+using System.Data;
+
+namespace Migrator.Framework
+{
+    /// <summary>
+    /// Represents a table column.
+    /// </summary>
+    public class Column : IColumn
+    {
+        private string _name;
+        private DbType _type;
+        private int _size;
+        private ColumnProperty _property;
+        private object _defaultValue;
+
+		public Column(string name)
+		{
+			Name = name;
+		}
+
+    	public Column(string name, DbType type)
+        {
+            Name = name;
+            Type = type;
+        }
+
+        public Column(string name, DbType type, int size)
+        {
+            Name = name;
+            Type = type;
+            Size = size;
+        }
+
+		public Column(string name, DbType type, object defaultValue)
+		{
+			Name = name;
+			Type = type;
+			DefaultValue = defaultValue;
+		}
+
+    	public Column(string name, DbType type, ColumnProperty property)
+        {
+            Name = name;
+            Type = type;
+            ColumnProperty = property;
+        }
+
+        public Column(string name, DbType type, int size, ColumnProperty property)
+        {
+            Name = name;
+            Type = type;
+            Size = size;
+            ColumnProperty = property;
+        }
+
+        public Column(string name, DbType type, int size, ColumnProperty property, object defaultValue)
+        {
+            Name = name;
+            Type = type;
+            Size = size;
+            ColumnProperty = property;
+            DefaultValue = defaultValue;
+        }
+
+        public Column(string name, DbType type, ColumnProperty property, object defaultValue)
+        {
+            Name = name;
+            Type = type;
+            ColumnProperty = property;
+            DefaultValue = defaultValue;
+        }
+
+        public string Name
+        {
+            get { return _name; }
+            set { _name = value; }
+        }
+
+        public DbType Type
+        {
+            get { return _type; }
+            set { _type = value; }
+        }
+
+        public int Size
+        {
+            get { return _size; }
+            set { _size = value; }
+        }
+
+        public ColumnProperty ColumnProperty
+        {
+            get { return _property; }
+            set { _property = value; }
+        }
+
+        public object DefaultValue
+        {
+            get { return _defaultValue; }
+            set { _defaultValue = value; }
+        }
+        
+        public bool IsIdentity 
+        {
+            get { return (ColumnProperty & ColumnProperty.Identity) == ColumnProperty.Identity; }
+        }
+        
+        public bool IsPrimaryKey 
+        {
+            get { return (ColumnProperty & ColumnProperty.PrimaryKey) == ColumnProperty.PrimaryKey; }
+        }
+    }
+}