public async Task<ActionResult> Create(InvoiceViewModel invoiceVM)
{
if (ModelState.IsValid)
{
if(await Task.Run(() => _service.saveInvoice(invoiceVM)))
{
return RedirectToAction("Index");
}
}
//ViewBag.StudentID = new SelectList(db.Students, "StudentID", "NameOfChild", invoices.StudentID);
return View(invoiceVM);
}
/// <summary>
/// validates invoice details data when description field is not null,also validates no invoice detail data
/// </summary>
/// <param name="invoiceVM">InvoiceviewModel</param>
/// <returns>boolean true on success or false on validation failure</returns>
public bool validateInvoice(InvoiceViewModel invoiceVM)
{
Boolean iserror = true;
int Count = 0;
for(var i=0;i < invoiceVM.InvoiceDetailsViewModel.Count;i++)
{
string desc = (invoiceVM.InvoiceDetailsViewModel[i].Description != null) ? invoiceVM.InvoiceDetailsViewModel[i].Description.Trim() : "";
//if description is not null checks all other details have valid values
if (desc != "" )
{
if(invoiceVM.InvoiceDetailsViewModel[i].Quantity <1)
{
_modelstate.AddModelError("InvoiceDetailsViewModel[" + i + "].Quantity", "less than one");
iserror = false;
}
if(invoiceVM.InvoiceDetailsViewModel[i].UnitPrice <1)
{
_modelstate.AddModelError("InvoiceDetailsViewModel[" + i + "].UnitPrice", "less than one");
iserror = false;
}
if(invoiceVM.InvoiceDetailsViewModel[i].Amount <1)
{
_modelstate.AddModelError("InvoiceDetailsViewModel[" + i + "].Amount", "less than one");
iserror = false;
}
//checks if atleast one record is added to invoice details, return false if data is empty
Count = Count + 1;
}
}
if (Count == 0)
{
iserror = false;
_modelstate.AddModelError("", "No Records to add");
}
return iserror;
}
/// <summary>
/// saves invoice data after validation checks
/// </summary>
/// <param name="invoiceVM">InvoiceViewModel</param>
/// <returns>boolean on save success</returns>
public bool saveInvoice(InvoiceViewModel invoiceVM)
{
if (!validateInvoice(invoiceVM))
{
return false;
}
try
{
//remove empty invoice details record in invoice in reverse order
//if you remove randomly, collection get changes, and error is thrown
for (var i = invoiceVM.InvoiceDetailsViewModel.Count - 1; i >= 0; i--)
{
string desc = (invoiceVM.InvoiceDetailsViewModel[i].Description != null) ? invoiceVM.InvoiceDetailsViewModel[i].Description.Trim() : "";
if (desc == "")
{
invoiceVM.InvoiceDetailsViewModel.RemoveAt(i);
}
}
Invoice addInvoice = Mapper.Map<Invoice>(invoiceVM);
db.Invoices.Add(addInvoice);
db.SaveChanges();
return true;
}
catch(Exception e)
{
_modelstate.AddModelError("", e.Message);
return false;
}
}
/// <summary>
/// This method is similar to saving data after report, here data is saved after report editing
/// </summary>
/// <param name="invoiceVM">invoice view model</param>
/// <returns>booleand wheather data is saved or not</returns>
public bool saveAfterEdit(InvoiceViewModel invoiceVM)
{
if (!validateInvoice(invoiceVM))
{
return false;
}
try
{
for (var i = invoiceVM.InvoiceDetailsViewModel.Count - 1; i >= 0; i--)
{
string desc = (invoiceVM.InvoiceDetailsViewModel[i].Description != null) ? invoiceVM.InvoiceDetailsViewModel[i].Description.Trim() : "";
if (desc == "")
{
invoiceVM.InvoiceDetailsViewModel.RemoveAt(i);
}
}
Invoice updateInvoice = Mapper.Map<Invoice>(invoiceVM);
foreach(var invDetail in updateInvoice.InvoiceDetails)
{
if(invDetail.InvoiceDetailID !=0)
{
db.Entry(invDetail).State = EntityState.Modified;
}
else if(invDetail.InvoiceDetailID == 0)
{
invDetail.InvoiceRefID = invoiceVM.InvoiceID;
db.Entry(invDetail).State = EntityState.Added;
}
}
db.Entry(updateInvoice).State = EntityState.Modified;
db.SaveChanges();
return true;
}
catch(Exception e)
{
_modelstate.AddModelError("", e.Message);
return false;
}
}
public async Task<ActionResult> Edit(InvoiceViewModel invoiceVM)
{
if(ModelState.IsValid)
{
if(await Task.Run(() => _service.saveAfterEdit(invoiceVM)))
{
return RedirectToAction("Index");
}
}
return View(invoiceVM);
}
