///////////////////////////////////////////////////////////
//  UserSkillAssigned.cs
//  Implementation of Class UserSkillAssigned
//  CSLA type: Editable Child 
//  Created on: 07-Jun-2004 8:41:44 AM
//  Object design: Joyce   
//	Coded: John 20-July-2004
///////////////////////////////////////////////////////////

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

using CSLA;
using System.Threading;
using CSLA.Security;
using GZTW.Data;

namespace GZTW.AyaNova.BLL 
{
	/// <summary>
	/// <see cref="UserSkill"/> assignement to <see cref="User"/>
	/// </summary>
	[Serializable]
	public class UserSkillAssigned : BusinessBase 
	{
		
		#region Attributes 

		private bool bReadOnly;
		
		//Used only for keyword indexing
		//and assigned docs collection
		//primary key is user and certification ID combo
		private Guid mID;

		private Guid mCreator;
		private Guid mModifier;
		private SmartDate mCreated;
		private SmartDate mModified;
		
		private Guid mUserSkillID;
		private Guid mUserID;
		

		#endregion

		#region Constructor
		private UserSkillAssigned()
		{
			//Set to read / write initially so that properties
			//can be set
			bReadOnly=false;

			//New ID - For assigned Docs list only
			mID = Guid.NewGuid();

			//Child object
			MarkAsChild();

			//Set record history to defaults
			mCreated = new SmartDate(DBUtil.CurrentWorkingDateTime);
			mModified=new SmartDate();
			mCreator=Guid.Empty;
			mModifier=Guid.Empty;

			
		}
		#endregion

		#region BusinessProperties
		
		//---Common properties
		/// <summary>
		/// Initial created date of this object
		/// </summary>
		public string Created 
		{
			get
			{
				return mCreated.ToString();
			}
		}
		/// <summary>
		/// User ID of who initially created this object
		/// </summary>
		public Guid Creator 
		{
			get
			{
				return mCreator;
			}
		}
		/// <summary>
		/// Last modified date of this object
		/// </summary>
		public string Modified 
		{
			get
			{
				return mModified.ToString();
			}
		}

		/// <summary>
		/// User ID of who last modified this object
		/// </summary>
		public Guid Modifier 
		{
			get
			{
				return mModifier;
			}
		}

		
		/// <summary>
		/// Unique ID of this object
		/// </summary>
		public Guid ID 
		{
			get
			{
				return mID;
			}
		}

		//---UserSkillAssigned specific properties

		/// <summary>
		/// User skill ID
		/// </summary>
		public Guid UserSkillID 
		{
			get
			{
				return mUserSkillID;
			}
			set
			{
				if(bReadOnly)
					ThrowSetError();
				else
				{
					if(mUserSkillID!=value)
					{
						mUserSkillID = value;
						MarkDirty();
						
					}
				}
			}
		}

		/// <summary>
		/// User ID
		/// </summary>
		public Guid UserID 
		{
			get
			{
				return mUserID;
			}
			set
			{
				if(bReadOnly)
					ThrowSetError();
				else
				{
					if(mUserID!=value)
					{
						mUserID = value;
						MarkDirty();
						
					}
				}
			}
		}

		

		//		/// <summary>
		//		/// Documents assigned to this object
		//		/// </summary>
		//		public AssignedDocs Docs 
		//		{
		//			get
		//			{
		//				return mDocs;
		//			}
		//			
		//		}

		

		

		/// <summary>
		/// Throw an error when a read only user 
		/// tries to set a property
		/// (this should normally never be called unless someone is using the developer api since the UI
		/// should prevent it from happening initially)
		/// </summary>
		private void ThrowSetError()
		{
			throw new System.Security.SecurityException
				(
				string.Format
				(
				LocalizedTextTable.GetLocalizedTextDirect("Error.Security.NotAuthorizedToChange"),
				LocalizedTextTable.GetLocalizedTextDirect("O.UserSkillAssigned")
				)
				);
		}

		#endregion

		#region System.object overrides

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
		public override string ToString()
		{
			return "UserSkillAssigned" + mUserSkillID.ToString()+mUserID.ToString();
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="obj"></param>
		/// <returns></returns>
		public override bool Equals(Object obj)
		{
			if ( obj == null || GetType ( ) != obj.GetType ( ) ) return false;
			UserSkillAssigned c=(UserSkillAssigned)obj;
			return ( (mUserSkillID==c.UserSkillID) && (mUserID==c.UserID) );
		}

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
		public override int GetHashCode()
		{
			return ("UserSkillAssigned" + mUserSkillID.ToString() + mUserID.ToString()).GetHashCode();
		}
		#endregion

		#region Static methods
		/// <summary>
		/// NewItem
		/// </summary>
		/// <param name="obj"></param>
		/// <returns></returns>
		internal static UserSkillAssigned NewItem(User obj)
		{

            if (AyaBizUtils.Right("Object.UserSkillAssigned") > (int)SecurityLevelTypes.ReadOnly)
            {
				UserSkillAssigned child=new UserSkillAssigned();
				child.UserSkillID=Guid.Empty;
				child.UserID=obj.ID;
				return child;
			}
			else
				throw new System.Security.SecurityException(
					string.Format(
					LocalizedTextTable.GetLocalizedTextDirect("Error.Security.NotAuthorizedToCreate"),
					LocalizedTextTable.GetLocalizedTextDirect("O.UserSkillAssigned")));
			
		}

		/// <summary>
		/// Retrieve item
		/// </summary>
		/// <param name="dr">Data reader</param>
		/// <returns>item from database</returns>
		internal static UserSkillAssigned GetItem(SafeDataReader dr)
		{

			//case 1186
            //if(AyaBizUtils.Right("Object.UserSkillAssigned")>(int)SecurityLevelTypes.NoAccess)	
            //{
				UserSkillAssigned child = new UserSkillAssigned();
				child.Fetch(dr);
				return child;
            //}
            //else
            //    throw new System.Security.SecurityException(
            //        string.Format(
            //        LocalizedTextTable.GetLocalizedTextDirect("Error.Security.NotAuthorizedToRetrieve"),
            //        LocalizedTextTable.GetLocalizedTextDirect("O.UserSkillAssigned")));
		}
		#endregion
		
		#region DAL Data Access

		/// <summary>
		/// Fetch from db
		/// </summary>
		/// <param name="dr"></param>
		private void Fetch(SafeDataReader dr)
		{
			//Standard items
			mCreated=DBUtil.ToLocal(dr.GetSmartDate("aCreated"));
			mCreator=dr.GetGuid("aCreator");
			mModified=DBUtil.ToLocal(dr.GetSmartDate("aModified"));
			mModifier=dr.GetGuid("aModifier");
			
			//UserSkillAssigned specific parameters
			mUserSkillID=dr.GetGuid("aUserSkillID");
			mUserID=dr.GetGuid("aUserID");
			
			//required for assigned docs and 
			//keyword indexing
			mID=dr.GetGuid("aID");

			//Get access rights level
			bReadOnly=AyaBizUtils.Right("Object.UserSkillAssigned")<(int)SecurityLevelTypes.ReadWrite;

			MarkOld();
	
		}

		/// <summary>
		/// Update
		/// </summary>
		/// <param name="obj"></param>
		/// <param name="tr"></param>
		internal void Update(User obj,IDbTransaction tr)
		{
			//No need to update if there is nothing changed
			if(!this.IsDirty) return;			
			
			// If not a new record, check if record was modified 
			//by another user since original retrieval:
			if(!IsNew)
				DBUtil.CheckSafeToUpdate(this.mModified.Date,this.mID,"aUserSkillAssigned");	
			
			#region Delete
			if(IsDeleted)
			{
				if(!IsNew)
				{						
					DBCommandWrapper cmDelete = DBUtil.GetCommandFromSQL("DELETE FROM aUserSkillAssigned WHERE aID = @ID;");
					cmDelete.AddInParameter("@ID",DbType.Guid,this.mID);
					DBUtil.DB.ExecuteNonQuery(cmDelete, tr);
				}
				MarkNew();
				return;
			}

			#endregion

			#region Add / Update			

			//get modification time temporarily, if update succeeds then
			//set to this time
			System.DateTime dtModified = DBUtil.CurrentWorkingDateTime;

			DBCommandWrapper cm = null;
			if(IsNew)//Add or update?
				cm=DBUtil.GetCommandFromSQL(
					"INSERT INTO aUserSkillAssigned (aUserID, aUserSkillID, aID, aCreated, aModified, aCreator,aModifier) " +
					"VALUES (@UserID,@UserSkillID,@ID,@Created,@Modified,@CurrentUserID,@CurrentUserID)"
					);
			else
				cm=DBUtil.GetCommandFromSQL(
					"UPDATE aUserSkillAssigned SET aUserID=@UserID, aUserSkillID=@UserSkillID, " +
					"aID=@ID, aModifier=@CurrentUserID, " +
					"aModified=@Modified where aID=@ID"
					);


		
			cm.AddInParameter("@ID",DbType.Guid, mID);
			cm.AddInParameter("@UserID",DbType.Guid, mUserID);
			cm.AddInParameter("@UserSkillID",DbType.Guid, mUserSkillID);			
			cm.AddInParameter("@CurrentUserID",DbType.Guid, CurrentUserID);
			cm.AddInParameter("@Created",DbType.DateTime, DBUtil.ToUTC(mCreated).DBValue);
			cm.AddInParameter("@Modified",DbType.DateTime, DBUtil.ToUTC(dtModified));
		
			DBUtil.DB.ExecuteNonQuery(cm, tr);				

			MarkOld();//db is now synched with object
				
			//Successful update so 
			//change modification time to match
			this.mModified.Date=dtModified;
			#endregion
			
		
		}
		#endregion
		
		
	}//end UserSkillAssigned

}//end namespace GZTW.AyaNova.BLL