public async Task <UpsertModel> UpsertExpense(UpsertMode mode, ExpenseViewModel model)
{
var upsert = new UpsertModel();
try {
Activity activity;
string title;
System.Text.StringBuilder builder;
// Record previous values for comparison
double amount = (Expense != null ? Expense.Amount : 0);
string by = (Expense != null ? Expense.By : string.Empty);
string desc = (Expense != null ? Expense.Description : string.Empty);
int category = (Expense != null ? Expense.Category : 0);
int changes = 0;
// Apply changes
Expense = model.ParseAsEntity(Expense);
builder = new System.Text.StringBuilder();
if (model.ExpenseId == 0)
{
db.Expenses.Add(Expense);
title = "Expense Created";
builder.Append(string.Format("A Expense record has been created for: {0}", model.By)).AppendLine();
}
else
{
db.Entry(Expense).State = System.Data.Entity.EntityState.Modified;
title = "Expense Updated";
builder.Append("The following changes have been made to the Expense details");
if (mode == UpsertMode.Admin)
{
builder.Append(" (by the Admin)");
}
builder.Append(":").AppendLine();
}
if (amount != Expense.Amount)
{
builder.AppendLine().AppendFormat("Amount: from '{0}' to '{1}'", amount, Expense.Amount);
changes += 1;
}
if (by != Expense.By)
{
builder.AppendLine().AppendFormat("Expense By: from '{0}' to '{1}'", by, Expense.By);
changes += 1;
}
if (desc != Expense.Description)
{
builder.AppendLine().AppendFormat("Description: from '{0}' to '{1}'", desc, Expense.Description);
changes += 1;
}
if (category != Expense.Category)
{
var categoryValue = category == 0 ? "" : Expense.Categories()[category];
builder.AppendLine().AppendFormat("Category: from '{0}' to '{1}'", categoryValue, Expense.Categories()[model.Category]);
changes += 1;
}
await db.SaveChangesAsync();
ExpenseId = Expense.ExpenseId;
// Save activity now so we have a ExpenseId. Not ideal, but hey
activity = CreateActivity(title, builder.ToString());
activity.UserId = ServiceUserId;
await db.SaveChangesAsync();
if (model.ExpenseId == 0)
{
upsert.ErrorMsg = "Expense record created successfully";
}
else
{
upsert.ErrorMsg = "Expense record updated successfully";
}
upsert.RecordId = Expense.ExpenseId.ToString();
}
catch (Exception ex) {
upsert.ErrorMsg = ex.Message;
}
return(upsert);
}