ayanova7/source/bizobjects/AyaLib/GZTW.AyaNova.BLL/NotifySubscriptions.cs

///////////////////////////////////////////////////////////
//  NotifySubscriptions.cs
//  Implementation of Class NotifySubscriptions
//  CSLA type: Editable child collection 
//	Created on: 04-Oct-2005
//  Object design: John     
//	Coded: John 04-Oct-2005
///////////////////////////////////////////////////////////

using System;
using System.Data;
using CSLA.Data;
using CSLA;

namespace GZTW.AyaNova.BLL 
{
	/// <summary>
	/// NotifySubscriber rates collection
	/// </summary>
	[Serializable]
	public class NotifySubscriptions : BusinessCollectionBase 
	{

		#region Constructor
		
		//Private constructor prevents direction instantiation
		private NotifySubscriptions()
		{
			//Child 
			MarkAsChild();
			AllowSort=false;
			AllowFind=true;
			AllowEdit=true;
			AllowNew=true;
			AllowRemove=true;

		}

		#endregion

		#region Business properties and methods
		/// <summary>
		/// Retrieve NotifySubscription by index
		/// </summary>
		/// <param name="Item">Index</param>
		public NotifySubscription this[int Item]
		{
			get
			{
				return (NotifySubscription) List[Item];

			}
		}
	
		/// <summary>
		/// Retrieve NotifySubscription by string containing Guid value
		/// </summary>
		public NotifySubscription this[string NotifySubscriptionID]
		{
			get
			{				
				System.Guid sid = new System.Guid(NotifySubscriptionID);		
				foreach (NotifySubscription child in List)
				{
					if(child.ID==sid)	
						return child;
				}
				return null;
			}
		}

		/// <summary>
		/// Remove NotifySubscription by passing it in
		/// </summary>
		/// <param name="obj"></param>
		public void Remove(NotifySubscription obj)
		{
			List.Remove(obj);
		}

		/// <summary>
		/// Remove NotifySubscription by string of id value
		/// </summary>
		/// <param name="NotifySubscriptionID"></param>
		public void Remove(string NotifySubscriptionID)
		{
			System.Guid sid = new System.Guid(NotifySubscriptionID);		
			foreach (NotifySubscription child in List)
			{
				if(child.ID==sid)	
					List.Remove(child);
			}
		}

		/// <summary>
		/// Remove by Guid value of ID
		/// </summary>
		/// <param name="NotifySubscriptionID"></param>
		public void Remove(Guid NotifySubscriptionID)
		{
			foreach (NotifySubscription child in List)
			{
				if(child.ID==NotifySubscriptionID)	
					List.Remove(child);
			}
		}

		/// <summary>
		/// Add a new NotifySubscription to the collection
		/// </summary>
		/// <param name="obj"></param>
		public NotifySubscription Add(NotifySubscriber obj)
		{
			NotifySubscription child=NotifySubscription.NewItemChild(obj);
			List.Add(child);
			return child;
		}

		#endregion		

		#region Contains

		/// <summary>
		/// Check if item in collection
		/// by it's event id and root object type
		/// </summary>
		/// <param name="RootObject"></param>
		/// <param name="EventType"></param>
		/// <returns></returns>
		public bool Contains(RootObjectTypes RootObject, int EventType)
		{
			foreach (NotifySubscription child in List)
			{
				if(child.RootObjectType== RootObject && child.EventType==EventType) return true;
			}
			return false;

		}

		/// <summary>
		/// Check if item in collection
		/// by it's event id, root object type AND GuidValue
		/// </summary>
		/// <param name="RootObject"></param>
		/// <param name="EventType"></param>
		/// <param name="GuidValue"></param>
		/// <returns></returns>
		public bool Contains(RootObjectTypes RootObject, int EventType, Guid GuidValue)
		{
			foreach (NotifySubscription child in List)
			{
				if(child.RootObjectType== RootObject && child.EventType==EventType && child.GuidValue==GuidValue) return true;
			}
			return false;

		}

		/// <summary>
		/// Check if item in collection by string of ID value
		/// </summary>
		/// <param name="NotifySubscriptionID"></param>
		public bool Contains(string NotifySubscriptionID)
		{
			System.Guid sid = new System.Guid(NotifySubscriptionID);
			foreach (NotifySubscription child in List)
			{
				if(child.ID==sid) return true;
			}
			return false;

		}

		/// <summary>
		/// Check if item in deleted collection
		/// </summary>
		/// <param name="obj"></param>
		public bool ContainsDeleted(NotifySubscription obj)
		{
			foreach (NotifySubscription child in deletedList)
			{
				if(child.Equals(obj)) return true;
			}
			return false;

		}

		/// <summary>
		/// Check if item in deleted collection by string of ID value
		/// </summary>
		/// <param name="NotifySubscriptionID"></param>
		public bool ContainsDeleted(string NotifySubscriptionID)
		{
			System.Guid sid = new System.Guid(NotifySubscriptionID);
			foreach (NotifySubscription child in deletedList)
			{
				if(child.ID==sid) return true;
			}
			return false;

		}
		#endregion

		#region Static methods
		/// <summary>
		/// NewItems
		/// </summary>
		/// <returns></returns>
		internal static NotifySubscriptions NewItems()
		{
			return new NotifySubscriptions();
		}

		/// <summary>
		/// GetItems
		/// </summary>
		/// <param name="dr"></param>
		/// <returns></returns>
		internal static NotifySubscriptions GetItems(SafeDataReader dr)
		{
			NotifySubscriptions col = new NotifySubscriptions();
			col.Fetch(dr);
			return col;
		}
		#endregion	

		#region DAL DATA ACCESS

		/// <summary>
		/// Fetch children
		/// </summary>
		/// <param name="dr">Populated data reader</param>
		private void Fetch(SafeDataReader dr)
		{
			while(dr.Read()) 
			{
				List.Add(NotifySubscription.GetItemChild(dr));
			}
		}

		/// <summary>
		/// Update children
		/// </summary>
		/// <param name="obj"></param>
		/// <param name="tr"></param>
		internal void Update(NotifySubscriber obj,IDbTransaction tr)
		{
			//update (thus deleting) any deleted child objects
			foreach (NotifySubscription child in deletedList)
			{
				child.Update(obj,tr);
			}

			//Now that they are deleted remove them from memory
			deletedList.Clear();

			foreach (NotifySubscription child in List)
			{
				child.Update(obj,tr);

			}
		}
		#endregion

		#region Shared delete method
		internal struct nsub
		{
			public Guid id;
			public RootObjectTypes rotype;
			public int eventtype;
			public Guid guidvalue;

		}
		/// <summary>
		/// Given a Subscriber ID 
		/// 
		/// retrieves all Subscription id values for that
		/// subscriber, then calls the subscription Shared static direct 
		/// delete method to clear out those subscriptions
		/// 
		/// This is done this way to handle updating the notifyeventofinterest table 
		/// properly on deletion
		/// 
		/// Called by subscriber delete
		/// </summary>
		/// <param name="SubscriberID">ID of parent subscriber item</param>
		/// <param name="transaction">Database transaction from ascendant item</param>
		internal static void DeleteItems(Guid SubscriberID,IDbTransaction transaction)
		{
			
			//This one is more tricky, here we need to iterate through all the matching records
			//and call the static delete method 
			System.Collections.ArrayList al=new System.Collections.ArrayList();
			SafeDataReader dr = null;	
			
			

			try
			{			
				dr=DBUtil.GetReaderFromSQLString("SELECT aID, aRootObjectType, aEventType, aGuidValue " +
					"FROM aNotifySubscription " +
					"WHERE aUserID=@ID",SubscriberID);			
				while(dr.Read()) 
				{
					nsub n=new nsub();
					n.id=dr.GetGuid("aID");
					n.rotype=(RootObjectTypes)dr.GetInt16("aRootObjectType");
					n.eventtype=dr.GetInt16("aEventType");
					n.guidvalue=dr.GetGuid("aGuidValue");
					al.Add(n);
					
					
				}
				dr.Close();

				foreach(object o in al)
				{
					nsub n1=(nsub)o;
					NotifySubscription.DeleteItem(n1.id,n1.rotype,n1.eventtype,n1.guidvalue,SubscriberID,transaction);

				}
			}
			finally
			{
				if(dr!=null) dr.Close();
			}				
		}

		#endregion
		
	}//end NotifySubscriptions

}//end namespace GZTW.AyaNova.BLL