Month.cs
Language: C#
Last Modified: 2020-06-27 1:58:30 PM UTC
File Size: 7413 bytes
Last Modified: 2020-06-27 1:58:30 PM UTC
File Size: 7413 bytes
http://www.penguinstew.ca/example/dataviewer/Model/Month.cs
using System;
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Linq;
using Budgeter.Model.Connection;
namespace Budgeter.Model
{
/// <summary>
/// Table containing month information
/// </summary>
[Table(Name = "Months")]
public class Month : IFormattable, IRefreshableTable
{
#region Constructor
public Month()
{
Transactions = new EntitySet<Transaction>();
SpecialAccountMonths = new EntitySet<SpecialAccountMonth>();
BudgetMonths = new EntitySet<BudgetMonth>();
RecurringPaymentMonths = new EntitySet<RecurringPaymentMonth>();
}
#endregion
#region Columns
/// <summary>
/// Unique ID
/// </summary>
[Column(IsPrimaryKey = true, IsDbGenerated = true)]
public int MonthId { get; set; }
/// <summary>
/// Date representing the start of the month
/// </summary>
[Column]
public DateTime Date { get; set; }
/// <summary>
/// Chequing account value at start of month
/// </summary>
[Column]
public decimal StartChequing { get; set; }
/// <summary>
/// Savings account value at start of month
/// </summary>
[Column]
public decimal StartSavings { get; set; }
/// <summary>
/// Credit value at start of month
/// </summary>
[Column]
public decimal StartCredit { get; set; }
/// <summary>
/// Cash value at start of month
/// </summary>
[Column]
public decimal StartCash { get; set; }
#endregion
#region Entities
private EntitySet<Transaction> m_transactions;
/// <summary>
/// Reference to the related transactions
/// </summary>
[Association(Storage = "m_transactions", OtherKey = "MonthId")]
public EntitySet<Transaction> Transactions
{
get
{
return m_transactions;
}
set
{
m_transactions = value;
}
}
private EntitySet<SpecialAccountMonth> m_specialAccountMonths;
/// <summary>
/// Reference to the related special accounts
/// </summary>
[Association(Storage = "m_specialAccountMonths", OtherKey = "MonthId")]
public EntitySet<SpecialAccountMonth> SpecialAccountMonths
{
get
{
return m_specialAccountMonths;
}
set
{
m_specialAccountMonths = value;
}
}
private EntitySet<BudgetMonth> m_budgetMonths;
/// <summary>
/// Reference to the related special accounts
/// </summary>
[Association(Storage = "m_budgetMonths", OtherKey = "MonthId")]
public EntitySet<BudgetMonth> BudgetMonths
{
get
{
return m_budgetMonths;
}
set
{
m_budgetMonths = value;
}
}
private EntitySet<RecurringPaymentMonth> m_recurringPaymentMonths;
/// <summary>
/// Reference to the related recurring Payments
/// </summary>
[Association(Storage = "m_recurringPaymentMonths", OtherKey = "MonthId")]
public EntitySet<RecurringPaymentMonth> RecurringPaymentMonths
{
get
{
return m_recurringPaymentMonths;
}
set
{
m_recurringPaymentMonths = value;
}
}
#endregion
#region Public methods
/// <summary>
/// Runs through the transactions of the month to determine the ending values
/// </summary>
/// <param name="outChequing">The ending chequing amount</param>
/// <param name="outSavings">The ending savings amount</param>
/// <param name="outCash">The ending cash amount</param>
public void CalculateEndValues(out decimal outChequing, out decimal outSavings, out decimal outCash)
{
decimal chequing = StartChequing;
decimal savings = StartSavings;
decimal cash = StartCash;
foreach (var transaction in Transactions)
{
//Subtract debits
switch (transaction.FromAccount)
{
case Enums.Accounts.Cash:
decimal cashAmount = Math.Ceiling(transaction.Amount / 5) * 5;
cash -= cashAmount;
break;
case Enums.Accounts.Chequing:
chequing -= transaction.Amount;
break;
case Enums.Accounts.Savings:
savings -= transaction.Amount;
break;
}
//Add credits
switch (transaction.ToAccount)
{
case Enums.Accounts.Cash:
cash += transaction.Amount;
break;
case Enums.Accounts.Chequing:
chequing += transaction.Amount;
break;
case Enums.Accounts.Savings:
savings += transaction.Amount;
break;
}
}
outChequing = chequing;
outSavings = savings;
outCash = cash;
}
#endregion
#region Overrides
/// <summary>
/// Returns the month name
/// </summary>
/// <returns>String</returns>
public override string ToString()
{
return Date.ToString("Y");
}
#endregion
#region IFormattable
public string ToString(string format, IFormatProvider formatProvider)
{
if (format == null)
{
format = "Y";
}
return Date.ToString(format, formatProvider);
}
#endregion
#region IRefreshableTable
/// <summary>
/// Refresh transactions and special account months
/// </summary>
/// <param name="connection">The connection to use to refresh</param>
public void RefreshEntitySets(BudgeterDataContext connection)
{
this.m_transactions.Clear();
this.Transactions.AddRange(connection.Transactions.Where(t => t.MonthId == MonthId));
this.m_specialAccountMonths.Clear();
this.m_specialAccountMonths.AddRange(connection.SpecialAccountMonths.Where(s => s.MonthId == MonthId));
m_budgetMonths.Clear();
m_budgetMonths.AddRange(connection.BudgetMonths.Where(b => b.MonthId == MonthId));
m_recurringPaymentMonths.Clear();
m_recurringPaymentMonths.AddRange(connection.RecurringPaymentMonths.Where(r => r.MonthId == MonthId));
}
#endregion
}
}
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