public IActionResult Delete(EntityViewModel vm)
{
bool errorMessageSet = false;
var userID = User.FindFirstValue(ClaimTypes.NameIdentifier);
//Check for absorption category selection.
if (vm.AbsorptionEntity.EntityID != 0)
{
//Make sure user owns both the absorbed and absorbing categories
if (!_categoryRepository.UserOwnsCategory(vm.EntityOfInterest.EntityID, userID) ||
!_categoryRepository.UserOwnsCategory(vm.AbsorptionEntity.EntityID, userID))
{
//TODO: Perhaps a more specific message to the user?
return(NotFound());
}
//Convert the VMCategories to DBCategories
Category absorbedCategory = _categoryRepository.Get(vm.EntityOfInterest.EntityID, userID);
Category absorbingCategory = _categoryRepository.Get(vm.AbsorptionEntity.EntityID, userID);
//Ensure that the deleted category is not default.
if (!absorbedCategory.IsDefault)
{
//Make sure the absorbing category and the deleting category are not the same.
if (absorbedCategory.CategoryID != absorbingCategory.CategoryID)
{
//Update all transactions that currently point to the category being deleted to instead point to the absorbing category.
_categoryRepository.Absorption(absorbedCategory.CategoryID, absorbingCategory.CategoryID, userID);
//Delete the category to be deleted.
_categoryRepository.Delete(absorbedCategory.CategoryID);
TempData["Message"] = "Category successfully deleted.";
return(RedirectToAction("Index"));
}
SetErrorMessage(vm, "Category being deleted and category absorbing cannot be the same.", errorMessageSet);
errorMessageSet = true;
}
SetErrorMessage(vm, "Deleting a default category is not allowed.", errorMessageSet);
errorMessageSet = true;
}
SetErrorMessage(vm, "You must select a category to absorb transactions related to the category being deleted.", errorMessageSet);
EntityViewModel failureStateVM = new EntityViewModel();
failureStateVM.EntityOfInterest = vm.EntityOfInterest;
failureStateVM.CategorySelectList = failureStateVM.InitCategorySelectList(_categoryRepository, userID);
return(View(failureStateVM));
}