added marr.datamapper source code for easy debugging.

Marr.Data/QGen/TableCollection.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Collections;
+using System.Reflection;
+
+namespace Marr.Data.QGen
+{
+    /// <summary>
+    /// This class holds a collection of Table objects.
+    /// </summary>
+    public class TableCollection : IEnumerable<Table>
+    {
+        private List<Table> _tables;
+
+        public TableCollection()
+        {
+            _tables = new List<Table>();
+        }
+
+        public void Add(Table table)
+        {
+            if (this.Any(t => t.EntityType == table.EntityType))
+            {
+                // Already exists -- don't add
+                return;
+            }
+
+            // Create an alias (ex: "t0", "t1", "t2", etc...)
+            table.Alias = string.Format("t{0}", _tables.Count);
+            _tables.Add(table);
+        }
+
+        public void ReplaceBaseTable(View view)
+        {
+            _tables.RemoveAt(0);
+            Add(view);
+        }
+
+        /// <summary>
+        /// Tries to find a table for a given member.  
+        /// </summary>
+        public Table FindTable(Type declaringType)
+        {
+            return this.EnumerateViewsAndTables().Where(t => t.EntityType == declaringType).FirstOrDefault();
+        }
+
+        public Table this[int index]
+        {
+            get
+            {
+                return _tables[index];
+            }
+        }
+
+        public int Count
+        {
+            get
+            {
+                return _tables.Count;
+            }
+        }
+
+        /// <summary>
+        /// Recursively enumerates through all tables, including tables embedded in views.
+        /// </summary>
+        /// <returns></returns>
+        public IEnumerable<Table> EnumerateViewsAndTables()
+        {
+            foreach (Table table in _tables)
+            {
+                if (table is View)
+                {
+                    foreach (Table viewTable in (table as View))
+                    {
+                        yield return viewTable;
+                    }
+                }
+                else
+                {
+                    yield return table;
+                }
+            }
+        }
+
+        public IEnumerator<Table> GetEnumerator()
+        {
+            return _tables.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return _tables.GetEnumerator();
+        }
+    }
+}