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

///////////////////////////////////////////////////////////
//  ObjectCustomFields.cs
//  Implementation of Class ObjectCustomFields
//  CSLA type: Editable root collection 
//  Created on: 12-Oct-2004 
//  Object design: John  
//	Coded: John 12-Oct-2004 
///////////////////////////////////////////////////////////

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


namespace GZTW.AyaNova.BLL 
{
    /// <summary>
    /// Editable root collection of <see cref="ObjectCustomField"/> objects
    /// </summary>
	[Serializable]
	public class ObjectCustomFields : BusinessCollectionBase 
	{

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

		}

		#endregion

		#region Business properties and methods
		/// <summary>
		/// Locale key so that generic list editor
		/// UI code knows what title to give the list in a
		/// grid
		/// </summary>
		public string LocaleKey
		{
			get
			{
				return "ObjectCustomField.Label.List";
			}
		}

		/// <summary>
		/// Retrieve ObjectCustomField by index
		/// </summary>
		/// <param name="Item">Index</param>
		public ObjectCustomField this[int Item]
		{
			get
			{
				return (ObjectCustomField) List[Item];

			}
		}
	
		/// <summary>
		/// Retrieve ObjectCustomField by string containing form's name value
		/// </summary>
		public ObjectCustomField this[string sObjectName, string sFieldName]
		{
			get
			{		
				foreach (ObjectCustomField child in List)
				{
					if(child.ObjectName==sObjectName && child.FieldName==sFieldName)	
						return child;
				}
				return null;
			}
		}

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

		/// <summary>
		/// 
		/// </summary>
		/// <param name="sObjectName"></param>
		/// <param name="sFieldName"></param>
		public void Remove(string sObjectName, string sFieldName)
		{
			foreach (ObjectCustomField child in List)
			{
				if(child.ObjectName==sObjectName && child.FieldName==sFieldName)	
					List.Remove(child);
			}
		}

		

		/// <summary>
		/// 
		/// </summary>
		/// <param name="ObjectName"></param>
		/// <param name="FieldName"></param>
		/// <returns></returns>
		public ObjectCustomField Add(string ObjectName, string FieldName)
		{
			ObjectCustomField child=ObjectCustomField.NewItem(ObjectName, FieldName);
			List.Add(child);
			return child;
		}

		

		#endregion		

		#region Contains

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

		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="sObjectName"></param>
		/// <param name="sFieldName"></param>
		/// <returns></returns>
		public bool Contains(string sObjectName, string sFieldName)
		{			
			foreach (ObjectCustomField child in List)
			{
				if(child.ObjectName==sObjectName && child.FieldName==sFieldName) return true;
			}
			return false;

		}

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

		}

		
		#endregion

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

		/// <summary>
		/// 
		/// </summary>
		/// <param name="ObjectName"></param>
		/// <returns></returns>
		public static ObjectCustomFields GetItems(string ObjectName)
		{
			ObjectCustomFields col = new ObjectCustomFields();
			return (ObjectCustomFields)DataPortal.Fetch(new Criteria(ObjectName));
			
		}
		#endregion	

		#region DAL DATA ACCESS

		/// <summary>
		/// Fetch children root style
		/// </summary>
		/// <param name="Criteria"></param>
		protected override void DataPortal_Fetch(object Criteria)
		{
			Criteria crit = (Criteria)Criteria;
			SafeDataReader dr = null;				
			try
			{
				DBCommandWrapper cm = DBUtil.DB.GetSqlStringCommandWrapper(
					"SELECT * FROM aObjectCustomField " +
					"WHERE aObjectName=@ObjectName"
					);

				cm.AddInParameter("@ObjectName",DbType.String,crit.ObjectName);
				dr=new SafeDataReader(DBUtil.DB.ExecuteReader(cm));
				
				while(dr.Read()) 
				{
					List.Add(ObjectCustomField.GetItem(dr));
				}
			}
			finally
			{
				if(dr!=null) dr.Close();
			}
			
		}

		/// <summary>
		/// Editable Root Collection Update
		/// </summary>
		protected override void DataPortal_Update()
		{
			using (IDbConnection connection = DBUtil.DB.GetConnection())
			{
				connection.Open();
				IDbTransaction tr = connection.BeginTransaction();
				try
				{

					//update (thus deleting) any deleted child objects
					foreach (ObjectCustomField child in deletedList)
					{
						child.Update(tr);
					}

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

					foreach (ObjectCustomField child in List)
					{
						child.Update(tr);

					}
			
					tr.Commit();
				}
				catch
				{
					tr.Rollback();
					throw;//WAS: throw(ex);
				}
			}
		}
		#endregion


		#region criteria
		/// <summary>
		/// Criteria for identifying existing object
		/// </summary>
		[Serializable]
			private class Criteria
		{
			public string ObjectName;
			
			public Criteria(string _ObjectName)
			{
				ObjectName=_ObjectName;
				
			}
			
		}
		#endregion
		
	}//end ObjectCustomFields

}//end namespace GZTW.AyaNova.BLL