///////////////////////////////////////////////////////////
//  WorkorderItemLoans.cs
//  Implementation of Class WorkorderItemLoans
//  CSLA type: Editable Grandchild collection 
//  Created on: 12-Nov-2005
//  Object design: Joyce/John  
//	Coded: John 12-Nov-2005
///////////////////////////////////////////////////////////

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

namespace GZTW.AyaNova.BLL 
{
	/// <summary>
    /// Editable Grandchild collection of <see cref="WorkorderItemLoan"/> objects residing in parent <see cref="WorkorderItem"/> object
	/// </summary>
	[Serializable]
	public class WorkorderItemLoans : BusinessCollectionBase 
	{

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

		}

		#endregion

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

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

        //case 1975
        /// <summary>
        /// Retrieve WorkorderItemLoan by Guid value
        /// </summary>
        public WorkorderItemLoan this[Guid WorkorderItemLoanID]
        {
            get
            {               
                foreach (WorkorderItemLoan child in List)
                {
                    if (child.ID == WorkorderItemLoanID)
                        return child;
                }
                return null;
            }
        }

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

		/// <summary>
		/// Remove WorkorderItemLoan by string of id value
		/// </summary>
		/// <param name="WorkorderItemLoanID"></param>
		public void Remove(string WorkorderItemLoanID)
		{
			System.Guid sid = new System.Guid(WorkorderItemLoanID);
            Remove(sid);
		}

		/// <summary>
		/// Remove by Guid value of ID
		/// </summary>
		/// <param name="WorkorderItemLoanID"></param>
		public void Remove(Guid WorkorderItemLoanID)
		{
            WorkorderItemLoan delete = null;
			foreach (WorkorderItemLoan child in List)
			{
                if (child.ID == WorkorderItemLoanID)
                {
                    delete = child;
                    break;
                }
			}
            if (delete != null)
                Remove(delete);
		}

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

		/// <summary>
		/// Sets all items to read / write status
		/// used by workorder object when it's closed or service completed is true
		/// </summary>
		/// <param name="RO">true=Set to read only explicitly, false=set to whatever rights allowed</param>
		public void SetReadOnly(bool RO)
		{
			foreach (WorkorderItemLoan child in List)
			{
				if(RO==false)
					RO=AyaBizUtils.Right("Object.WorkorderItemLoan")<(int)SecurityLevelTypes.ReadWrite;

				child.SetReadOnly(RO);
			}
		}

		#endregion		

		#region Contains

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

		}

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

		}
		#endregion

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

		/// <summary>
		/// Get items - Grandchild style
		/// </summary>
		/// <param name="obj"></param>
		/// <returns></returns>
		internal static WorkorderItemLoans GetItems(WorkorderItem obj)
		{
			WorkorderItemLoans col = new WorkorderItemLoans();
            //case 1317
            if (AyaBizUtils.Right(RootObjectTypes.WorkorderItemLoan) > (int)SecurityLevelTypes.NoAccess)
                col.Fetch(obj);
			return col;
		}

		#endregion	

		#region DAL DATA ACCESS

		/// <summary>
		/// Fetch children - grandchild style
		/// </summary>
		/// <param name="obj"></param>
		private void Fetch(WorkorderItem obj)
		{
			//Load data Grandchild style
			SafeDataReader dr = null;	
			try
			{			
				dr=DBUtil.GetReaderFromSQLString("SELECT * " +
					"FROM aWorkorderItemLoan " +
					"WHERE aWorkorderItemID=@ID",obj.ID);		
				while(dr.Read()) 
				{
					List.Add(WorkorderItemLoan.GetItem(dr,obj));
				}
			}
			finally
			{
				if(dr!=null) dr.Close();
			}				

			

		}

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

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

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

			}
		}


		#region Shared delete method
		/// <summary>
		/// Given a workorder item ID deletes all items for that ID
		/// 
		/// Called by workorderitems delete
		/// </summary>
		/// <param name="WorkorderItemID">ID of parent workorder item</param>
		/// <param name="transaction">Database transaction from ascendant item</param>
		internal static void DeleteItems(Guid WorkorderItemID,IDbTransaction transaction)
		{

			//Delete all items indexed keywords *and* reset LoanItem currentworkorderItemLoan for any 
			//workorderitemloan under indicated workorderitem
			SafeDataReader dr = null;	
			System.Collections.ArrayList al= new System.Collections.ArrayList();
			try
			{			
				dr=DBUtil.GetReaderFromSQLString("SELECT aID " +
					"FROM aWorkorderItemLoan " +
					"WHERE aWorkorderItemID=@ID",WorkorderItemID,transaction);			
				while(dr.Read()) 
				{
					al.Add(dr.GetGuid("aID"));
					
					
				}

				dr.Close();

				foreach(object o in al)
				{

					DBUtil.RemoveKeywords(transaction,RootObjectTypes.WorkorderItemLoan,(Guid)o);

					//Un-Flag any loan item with aCurrentWorkorderItemLoan = this id
					DBCommandWrapper cmLoanItemUpdate = DBUtil.GetCommandFromSQL(
						"UPDATE aLoanItem SET aCurrentWorkorderItemLoan=@GUIDEMPTY " +
						"WHERE aCurrentWorkorderItemLoan=@CurrentWOILoanID"
						);
					cmLoanItemUpdate.AddInParameter("@CurrentWOILoanID",DbType.Guid, (Guid)o);
					cmLoanItemUpdate.AddInParameter("@GUIDEMPTY",DbType.Guid, Guid.Empty);
					DBUtil.DB.ExecuteNonQuery(cmLoanItemUpdate, transaction);	
				}
			}
			finally
			{
				if(dr!=null) dr.Close();
			}			


//			DBCommandWrapper cmDeleteKeywords = DBUtil.GetCommandFromSQL(
//				"DELETE aSearchKey FROM aSearchKey INNER JOIN aWorkorderItemLoan " +
//				"ON aSearchKey.aSourceObjectID = aWorkorderItemLoan.aID WHERE " +
//				"(aWorkorderItemLoan.aWorkorderItemID = @ID);");
//			cmDeleteKeywords.AddInParameter("@ID",DbType.Guid,WorkorderItemID);
//			DBUtil.DB.ExecuteNonQuery(cmDeleteKeywords,transaction);

			DBCommandWrapper cmDelete = DBUtil.GetCommandFromSQL("DELETE FROM aWorkorderItemLoan WHERE aWorkorderItemID=@ID;");
			cmDelete.AddInParameter("@ID",DbType.Guid,WorkorderItemID);													
			DBUtil.DB.ExecuteNonQuery(cmDelete, transaction);

		}

		#endregion
		#endregion
		
	}//end WorkorderItemLoans

}//end namespace GZTW.AyaNova.BLL