private string GetTransactionGroupNameUsingValue(TransactionGroupBy? group, List<Transaction> transactions)
{
if (group != null)
{
var transaction = transactions.FirstOrDefault();
switch (group)
{
case TransactionGroupBy.Category:
return transaction.Category;
case TransactionGroupBy.SubCategory:
return transaction.SubCategory;
case TransactionGroupBy.DateDay:
return transaction.Date.ToString("yyyy/MM/dd");
case TransactionGroupBy.DateMonth:
return transaction.Date.ToString("yyyy/MM");
case TransactionGroupBy.DateYear:
return transaction.Date.ToString("yyyy");
case TransactionGroupBy.Name:
return transaction.Name;
case TransactionGroupBy.InputOutput:
return transaction.Value > 0 ? "Receita" : "Despesa";
}
}
return null;
}
public Expression<Func<Transaction, object>> GetGroupByExpression(TransactionGroupBy group, out string groupName)
{
switch (group)
{
case TransactionGroupBy.Category:
groupName = "Categorias";
return f => f.Category;
case TransactionGroupBy.SubCategory:
groupName = "Sub-categorias";
return f => f.Category + "/" + f.SubCategory;
case TransactionGroupBy.DateDay:
groupName = "Dias";
return f => f.Date.ToString("yyyy/MM/dd");
case TransactionGroupBy.DateMonth:
groupName = "Meses";
return f => f.Date.ToString("yyyy/MM");
case TransactionGroupBy.DateYear:
groupName = "Anos";
return f => f.Date.ToString("yyyy");
case TransactionGroupBy.Name:
groupName = "Nomes";
return f => f.Name;
case TransactionGroupBy.InputOutput:
groupName = "Receitas e despesas";
return f => f.Value > 0 ? "Receita" : "Despesa";
}
groupName = "Nenhum";
return null;
}