Database-Driven Business Layer Templates

/*
===============================================================================
                     EntitySpaces(TM) by EntitySpaces, LLC
                 A New 2.0 Architecture for the .NET Framework
                          http://www.entityspaces.net
===============================================================================
                       EntitySpaces Version # 2007.1.1024.0
                       MyGeneration Version # 1.2.0.2
                           12/19/2007 2:29:30 PM
-------------------------------------------------------------------------------
*/


using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Data;
using System.ComponentModel;
using System.Xml.Serialization;


using EntitySpaces.Interfaces;
using EntitySpaces.Core;



namespace DAK.CustomESN.BusinessLayer
{
	
	[Serializable]
	[GeneratedCode]
	abstract public class esCategoryCollection : esEntityCollection, INotifyCollectionChanged
	{
		public esCategoryCollection()
		{

		}
		
		public event NotifyCollectionChangedEventHandler CollectionChanged;
		
		protected override string GetCollectionName()
		{
			return "CategoryCollection";
		}
		
		#region Query Logic
		protected void InitQuery(esCategoryQuery query)
		{
			query.OnLoadEvent += new esDynamicQuery.QueryLoadedDelegate(OnQueryLoaded);
			query.es.Connection = ((IEntityCollection)this).Connection;
		}

		protected bool OnQueryLoaded(DataTable table)
		{
			this.PopulateCollection(table);
			return (this.RowCount > 0) ? true : false;
		}
		#endregion
		
		virtual public Category DetachEntity(Category entity)
		{
			return base.DetachEntity(entity) as Category;
		}
		
		virtual public Category AttachEntity(Category entity)
		{
			return base.AttachEntity(entity) as Category;
		}
		
		virtual public void Combine(CategoryCollection collection)
		{
            base.Combine(collection);
        }
		
        new public Category this[int index]
        {
            get
            {
                return base[index] as Category;
            }
        }		
	}
	


	[Serializable]
	[GeneratedCode]
	abstract public class esCategory : esEntity, INotifyPropertyChanged
	{
		virtual protected esCategoryQuery GetDynamicQuery()
		{
			return null;
		}
		
		public esCategory()
		{
		}
	
		public esCategory(DataRow row)
			: base(row)
		{
		}
		
		#region LoadByPrimaryKey
		public virtual bool LoadByPrimaryKey(System.Int32 categoryID)
		{
			if(this.es.Connection.SqlAccessType == esSqlAccessType.DynamicSQL)
				return LoadByPrimaryKeyDynamic(categoryID);
			else
				return LoadByPrimaryKeyStoredProcedure(categoryID);
		}
	
		/// <summary>
		/// Loads an entity by primary key
		/// </summary>
		/// <remarks>
		/// EntitySpaces requires primary keys be defined on all tables.
		/// If a table does not have a primary key set,
		/// this method will not compile.
		/// </remarks>
		/// <param name="sqlAccessType">Either esSqlAccessType StoredProcedure or DynamicSQL</param>
		public virtual bool LoadByPrimaryKey(esSqlAccessType sqlAccessType, System.Int32 categoryID)
		{
			if (sqlAccessType == esSqlAccessType.DynamicSQL)
				return LoadByPrimaryKeyDynamic(categoryID);
			else
				return LoadByPrimaryKeyStoredProcedure(categoryID);
		}
	
		private bool LoadByPrimaryKeyDynamic(System.Int32 categoryID)
		{
			esCategoryQuery query = this.GetDynamicQuery();
			query.Where(query.CategoryID == categoryID);
			return query.Load();
		}
	
		private bool LoadByPrimaryKeyStoredProcedure(System.Int32 categoryID)
		{
			EntitySpaces.Interfaces.esParameters parms = new EntitySpaces.Interfaces.esParameters();
			parms.Add("CategoryID",categoryID);
			return this.Load(esQueryType.StoredProcedure, this.es.spLoadByPrimaryKey, parms);
		}
		#endregion
		
        #region INotifyPropertyChanged Members

		public event PropertyChangedEventHandler PropertyChanged;

		protected void OnPropertyChanged(string propertyName)
		{
			if (PropertyChanged != null)
			{
				PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
			}
		}

        #endregion		
		
		#region Properties
		
        public override void SetProperties(IDictionary values)
        {
            foreach (string propertyName in values.Keys)
            {
                this.SetProperty(propertyName, values[propertyName]);
            }
        }

		public override void SetProperty(string name, object value)
		{
			if(this.Row == null) this.AddNew();
			
			esColumnMetadata col = this.Meta.Columns.FindByPropertyName(name);
			if (col != null)
			{
				if(value == null || value.GetType().ToString() == "System.String")
				{				
					// Use the strongly typed property
					switch (name)
					{							
						case "CategoryID": this.str.CategoryID = (string)value; break;							
						case "CategoryName": this.str.CategoryName = (string)value; break;							
						case "Description": this.str.Description = (string)value; break;
					}
				}
				else
				{
					switch (name)
					{	
						case "CategoryID":
						
							if (value == null || value.GetType().ToString() == "System.Int32")
								this.CategoryID = (System.Int32?)value;
							break;
						
						case "Picture":
						
							if (value == null || value.GetType().ToString() == "System.Byte[]")
								this.Picture = (System.Byte[])value;
							break;
						
					
						default:
							break;
					}
				}
			}
			else if(this.Row.Table.Columns.Contains(name))
			{
				this.Row[name] = value;
			}
			else
			{
				throw new Exception("SetProperty Error: '" + name + "' not found");
			}
		}
		
		
		/// <summary>
		/// Maps to Categories.CategoryID
		/// </summary>
		virtual public System.Int32? CategoryID
		{
			get
			{
				return base.GetSystemInt32(CategoryMetadata.ColumnNames.CategoryID);
			}
			
			set
			{
				if(base.SetSystemInt32(CategoryMetadata.ColumnNames.CategoryID, value))
				{
					
					this.MarkFieldAsModified(CategoryMetadata.ColumnNames.CategoryID);
					if (PropertyChanged != null)
					{
						PropertyChanged(this, new PropertyChangedEventArgs(CategoryMetadata.PropertyNames.CategoryID));
					}
				}
			}
		}
		
		/// <summary>
		/// Maps to Categories.CategoryName
		/// </summary>
		virtual public System.String CategoryName
		{
			get
			{
				return base.GetSystemString(CategoryMetadata.ColumnNames.CategoryName);
			}
			
			set
			{
				if(base.SetSystemString(CategoryMetadata.ColumnNames.CategoryName, value))
				{
					
					this.MarkFieldAsModified(CategoryMetadata.ColumnNames.CategoryName);
					if (PropertyChanged != null)
					{
						PropertyChanged(this, new PropertyChangedEventArgs(CategoryMetadata.PropertyNames.CategoryName));
					}
				}
			}
		}
		
		/// <summary>
		/// Maps to Categories.Description
		/// </summary>
		virtual public System.String Description
		{
			get
			{
				return base.GetSystemString(CategoryMetadata.ColumnNames.Description);
			}
			
			set
			{
				if(base.SetSystemString(CategoryMetadata.ColumnNames.Description, value))
				{
					
					this.MarkFieldAsModified(CategoryMetadata.ColumnNames.Description);
					if (PropertyChanged != null)
					{
						PropertyChanged(this, new PropertyChangedEventArgs(CategoryMetadata.PropertyNames.Description));
					}
				}
			}
		}
		
		/// <summary>
		/// Maps to Categories.Picture
		/// </summary>
		virtual public System.Byte[] Picture
		{
			get
			{
				return base.GetSystemByteArray(CategoryMetadata.ColumnNames.Picture);
			}
			
			set
			{
				if(base.SetSystemByteArray(CategoryMetadata.ColumnNames.Picture, value))
				{
					
					this.MarkFieldAsModified(CategoryMetadata.ColumnNames.Picture);
					if (PropertyChanged != null)
					{
						PropertyChanged(this, new PropertyChangedEventArgs(CategoryMetadata.PropertyNames.Picture));
					}
				}
			}
		}
		
		#endregion	

		#region String Properties

		[BrowsableAttribute( false )]		
		public esStrings str
		{
			get
			{
				if (esstrings == null)
				{
					esstrings = new esStrings(this);
				}
				return esstrings;
			}
		}


		[Serializable]
		[GeneratedCode]
		sealed public class esStrings
		{
			public esStrings(esCategory entity)
			{
				this.entity = entity;
			}
			
	
			public System.String CategoryID
			{
				get
				{
					System.Int32? data = entity.CategoryID;
					return (data == null) ? String.Empty : Convert.ToString(data);
				}

				set
				{
					if (value == null || value.Length == 0) entity.CategoryID = null;
					else entity.CategoryID = Convert.ToInt32(value);
				}
			}
		  	
			public System.String CategoryName
			{
				get
				{
					System.String data = entity.CategoryName;
					return (data == null) ? String.Empty : Convert.ToString(data);
				}

				set
				{
					if (value == null || value.Length == 0) entity.CategoryName = null;
					else entity.CategoryName = Convert.ToString(value);
				}
			}
		  	
			public System.String Description
			{
				get
				{
					System.String data = entity.Description;
					return (data == null) ? String.Empty : Convert.ToString(data);
				}

				set
				{
					if (value == null || value.Length == 0) entity.Description = null;
					else entity.Description = Convert.ToString(value);
				}
			}
		  

			private esCategory entity;
		}
		#endregion

		#region Query Logic
		protected void InitQuery(esCategoryQuery query)
		{
			query.OnLoadEvent += new esDynamicQuery.QueryLoadedDelegate(OnQueryLoaded);
			query.es.Connection = ((IEntity)this).Connection;
		}

		protected bool OnQueryLoaded(DataTable table)
		{
			bool dataFound = this.PopulateEntity(table);

			if (this.RowCount > 1)
			{
				throw new Exception("esCategory can only hold one record of data");
			}

			return dataFound;
		}
		#endregion
		
		[NonSerialized]
		private esStrings esstrings;
	}


	
	/// <summary>
	/// Hierarchical for the 'Categories' table
	/// </summary>
	public partial class Category : esCategory
	{
		#region ProductsByCategoryID - Zero To Many
		/// <summary>
		/// Zero to Many
		/// Foreign Key Name - FK_Products_Categories
		/// </summary>

		[Browsable(false)]
		[Bindable(false)]
		[XmlIgnore]
		[GeneratedCode]
		public ProductCollection ProductsByCategoryID
		{
			[GeneratedCode]
			get
			{
				if(this._ProductsByCategoryID == null)
				{
					this._ProductsByCategoryID = new ProductCollection();
					this._ProductsByCategoryID.es.Connection.Name = this.es.Connection.Name;
					this.SetPostSave("ProductsByCategoryID", this._ProductsByCategoryID);
				
					if(this.CategoryID != null)
					{
						this._ProductsByCategoryID.Query.Where(this._ProductsByCategoryID.Query.CategoryID == this.CategoryID);
						this._ProductsByCategoryID.Query.Load();

						// Auto-hookup Foreign Keys
						this._ProductsByCategoryID.fks.Add(ProductMetadata.ColumnNames.CategoryID, this.CategoryID);
					}
				}

				return this._ProductsByCategoryID;
			}
		}

		[GeneratedCode]
		private ProductCollection _ProductsByCategoryID;
		#endregion

		/// <summary>
		/// Hierarchical method for retrieving AutoIncrementing keys
		/// during PreSave.
		/// </summary>
		[GeneratedCode]
		protected override void ApplyPreSaveKeys()
		{
		}
		
		/// <summary>
		/// Hierarchical method for retrieving AutoIncrementing keys
		/// during PostSave.
		/// </summary>
		[GeneratedCode]
		protected override void ApplyPostSaveKeys()
		{
			if(this._ProductsByCategoryID != null)
			{
				foreach(Product obj in this._ProductsByCategoryID)
				{
					if(obj.es.IsAdded)
					{
						obj.CategoryID = this.CategoryID;
					}
				}
			}
		}
		
		/// <summary>
		/// Hierarchical method for retrieving AutoIncrementing keys
		/// during PostOneToOneSave.
		/// </summary>
		[GeneratedCode]
		protected override void ApplyPostOneSaveKeys()
		{
		}
	}


	[Serializable]
	[GeneratedCode]
	abstract public class esCategoryQuery : esDynamicQuery
	{
		override protected IMetadata Meta
		{
			get
			{
				return CategoryMetadata.Meta();
			}
		}	
		

		public esQueryItem CategoryID
		{
			get
			{
				return new esQueryItem(this, CategoryMetadata.ColumnNames.CategoryID);
			}
		} 
		
		public esQueryItem CategoryName
		{
			get
			{
				return new esQueryItem(this, CategoryMetadata.ColumnNames.CategoryName);
			}
		} 
		
		public esQueryItem Description
		{
			get
			{
				return new esQueryItem(this, CategoryMetadata.ColumnNames.Description);
			}
		} 
		
		public esQueryItem Picture
		{
			get
			{
				return new esQueryItem(this, CategoryMetadata.ColumnNames.Picture);
			}
		} 
		
	}
	


	[Serializable]
	[XmlType("CategoryCollection")]
	public partial class CategoryCollection : esCategoryCollection, IEnumerable<Category>
	{
		[GeneratedCode]
		public CategoryCollection()
		{

		}	

		[GeneratedCode]		
		public static implicit operator List<Category>(CategoryCollection coll)
		{
			List<Category> list = new List<Category>();

			foreach (Category emp in coll)
			{
				list.Add(emp);
			}

			return list;
		}		
		
		#region Housekeeping methods
		[GeneratedCode]
		override protected IMetadata Meta
		{
			[GeneratedCode]
			get
			{
				return  CategoryMetadata.Meta();
			}
		}	

		[GeneratedCode]
		override protected esDynamicQuery GetDynamicQuery()
		{
			if (this.query == null)
			{
				this.query = new CategoryQuery();
				this.InitQuery(query);
			}
			return this.query;
		}
		
		[GeneratedCode]
		override protected esEntity CreateEntityForCollection(DataRow row)
		{
			return new Category(row);
		}

		[GeneratedCode]
		override protected esEntity CreateEntity()
		{
			return new Category();
		}
		
			
		#endregion


		[BrowsableAttribute( false )]
		[GeneratedCode]
		public CategoryQuery Query
		{
			[GeneratedCode]
			get
			{
				if (this.query == null)
				{
					this.query = new CategoryQuery();
					base.InitQuery(this.query);
				}

				return this.query;
			}
		}

		[GeneratedCode]
		public void QueryReset()
		{
			this.query = null;
		}

		[GeneratedCode]
		public Category AddNew()
		{
			Category entity = base.AddNewEntity() as Category;
			
			return entity;		
		}

		[GeneratedCode]
		public Category FindByPrimaryKey(System.Int32 categoryID)
		{
			return base.FindByPrimaryKey(categoryID) as Category;
		}


		#region IEnumerable<Category> Members

		[GeneratedCode]
		IEnumerator<Category> IEnumerable<Category>.GetEnumerator()
		{
			System.Collections.IEnumerable enumer = this as System.Collections.IEnumerable;
			System.Collections.IEnumerator iterator = enumer.GetEnumerator();

			while(iterator.MoveNext())
			{
				yield return iterator.Current as Category;
			}
		}

		#endregion
		
		[GeneratedCode]
		private CategoryQuery query;
	}
	
	



	/// <summary>
	/// Value enumeration for Categories table.
	/// </summary>
	public enum Categories
	{
		Beverages = 1,
		Condiments = 2,
		Confections = 3,
		Dairy_Products = 4,
		Grains_Cereals = 5,
		Meat_Poultry = 6,
		Produce = 7,
		Seafood = 8
	};


	
	/// <summary>
	/// Encapsulates the 'Categories' table
	/// </summary>

	[Serializable]
	public partial class Category : esCategory
	{
		[GeneratedCode]	
		public Category()
		{

		}	

		[GeneratedCode]	
		public Category(DataRow row)
			: base(row)
		{

		}
		
		#region Housekeeping methods
		[GeneratedCode]
		override protected IMetadata Meta
		{
			[GeneratedCode]
			get
			{
				return CategoryMetadata.Meta();
			}
		}

		[GeneratedCode]
		override protected esCategoryQuery GetDynamicQuery()
		{
			if (this.query == null)
			{
				this.query = new CategoryQuery();
				this.InitQuery(query);
			}
			return this.query;
		}
		#endregion


		[BrowsableAttribute( false )]
		[GeneratedCode]
		public CategoryQuery Query
		{
			[GeneratedCode]
			get
			{
				if (this.query == null)
				{
					this.query = new CategoryQuery();
					base.InitQuery(this.query);
				}

				return this.query;
			}
		}

		[GeneratedCode]
		public void QueryReset()
		{
			this.query = null;
		}

		[GeneratedCode]
		private CategoryQuery query;
	}
	


	[Serializable]
	[GeneratedCode]
	public partial class CategoryQuery : esCategoryQuery
	{
		public CategoryQuery()
		{

		}		

	}
	


	[Serializable]
	[GeneratedCode]
	public partial class CategoryMetadata : esMetadata, IMetadata
	{
		#region Protected Constructor
		protected CategoryMetadata()
		{
			_columns = new esColumnMetadataCollection();
			esColumnMetadata c;

			c = new esColumnMetadata(CategoryMetadata.ColumnNames.CategoryID, 0, Type.GetType("System.Int32"));	
			c.PropertyName = CategoryMetadata.PropertyNames.CategoryID;
			c.IsInPrimaryKey = true;
			c.IsAutoIncrement = true;
			c.NumericPrecision = 10;
			_columns.Add(c); 
				
			c = new esColumnMetadata(CategoryMetadata.ColumnNames.CategoryName, 1, Type.GetType("System.String"));	
			c.PropertyName = CategoryMetadata.PropertyNames.CategoryName;
			c.CharacterMaxLength = 15;
			_columns.Add(c); 
				
			c = new esColumnMetadata(CategoryMetadata.ColumnNames.Description, 2, Type.GetType("System.String"));	
			c.PropertyName = CategoryMetadata.PropertyNames.Description;
			c.CharacterMaxLength = 1073741823;
			c.IsNullable = true;
			_columns.Add(c); 
				
			c = new esColumnMetadata(CategoryMetadata.ColumnNames.Picture, 3, Type.GetType("System.Byte[]"));	
			c.PropertyName = CategoryMetadata.PropertyNames.Picture;
			c.CharacterMaxLength = 2147483647;
			c.IsNullable = true;
			_columns.Add(c); 
				
		}
		#endregion

		static public CategoryMetadata Meta()
		{
			return meta;
		}	
		
		public Guid DataID
		{
			get { return base._dataID; }
		}	
		
		public bool MultiProviderMode
		{
			get { return false; }
		}		

		public esColumnMetadataCollection Columns
		{
			get	{ return base._columns; }
		}
		
		#region ColumnNames
		[GeneratedCode]
		public class ColumnNames
		{ 
			 public const string CategoryID = "CategoryID";
			 public const string CategoryName = "CategoryName";
			 public const string Description = "Description";
			 public const string Picture = "Picture";
		}
		#endregion	
		
		#region PropertyNames
		[GeneratedCode]
		public class PropertyNames
		{ 
			 public const string CategoryID = "CategoryID";
			 public const string CategoryName = "CategoryName";
			 public const string Description = "Description";
			 public const string Picture = "Picture";
		}
		#endregion	

		public esProviderSpecificMetadata GetProviderMetadata(string mapName)
		{
			MapToMeta mapMethod = mapDelegates[mapName];

			if (mapMethod != null)
				return mapMethod(mapName);
			else
				return null;
		}
		
		#region MAP esDefault
		
		static private int RegisterDelegateesDefault()
		{
			// This is only executed once per the life of the application
            if(CategoryMetadata.mapDelegates == null)
            {
                CategoryMetadata.mapDelegates = new Dictionary<string,MapToMeta>();
            }

            if (CategoryMetadata.meta == null)
            {
                CategoryMetadata.meta = new CategoryMetadata();
            }
			
			mapDelegates.Add("esDefault", new MapToMeta(meta.esDefault));
			return 0;
		}			

		private esProviderSpecificMetadata esDefault(string mapName)
		{
			if(!_providerMetadataMaps.ContainsKey(mapName))
			{
				esProviderSpecificMetadata meta = new esProviderSpecificMetadata();
				
				meta.AddTypeMap("CategoryID", new esTypeMap("int", "System.Int32"));
				meta.AddTypeMap("CategoryName", new esTypeMap("nvarchar", "System.String"));
				meta.AddTypeMap("Description", new esTypeMap("ntext", "System.String"));
				meta.AddTypeMap("Picture", new esTypeMap("image", "System.Byte[]"));
			
				
				meta.Schema = "dbo";
				
				meta.Source = "Categories";
				meta.Destination = "Categories";
				
				
				meta.spInsert = "proc_CategoriesInsert";				
				meta.spUpdate = "proc_CategoriesUpdate";		
				meta.spDelete = "proc_CategoriesDelete";
				meta.spLoadAll = "proc_CategoriesLoadAll";
				meta.spLoadByPrimaryKey = "proc_CategoriesLoadByPrimaryKey";
			  
				
				this._providerMetadataMaps["esDefault"] = meta;
			}
			
			return this._providerMetadataMaps["esDefault"];
		}

		#endregion

		static private CategoryMetadata meta;
		static protected Dictionary<string, MapToMeta> mapDelegates;
		static private int _esDefault = RegisterDelegateesDefault();
	}
}