private async Task <ProcessResult <List <Photograph> > > GetPhotoNameUpdatesAsync(int categoryId, string namingThemeCode)
{
string[] existingNames = await _db.Photographs
.Where(p => p.Category.CategoryId == categoryId && !string.IsNullOrEmpty(p.AnonymousPhotoName))
.Select(p => p.AnonymousPhotoName)
.ToArrayAsync();
List <string> potentialNames = PhotoNamingThemes
.GetThemeItems(namingThemeCode)
.Minus(existingNames)
.InRandomSequence();
List <Photograph> photosToUpdate = await _db.Photographs
.Where(p => p.Category.CategoryId == categoryId && string.IsNullOrEmpty(p.AnonymousPhotoName))
.ToListAsync();
photosToUpdate = photosToUpdate.InRandomSequence();
ProcessResult <List <Photograph> > result = new ProcessResult <List <Photograph> >();
if (photosToUpdate.Count > potentialNames.Count)
{
result.AddError("Not enough anonymous photo names to assign for the number of photos in this category");
}
else
{
int itemNo = 0;
foreach (Photograph photo in photosToUpdate)
{
photo.AnonymousPhotoName = potentialNames[itemNo];
itemNo++;
}
result.SetResult(photosToUpdate);
}
return(result);
}
public CategoryViewModel BuildViewModelDropdownCriteria(CategoryViewModel viewModel)
{
viewModel.StatusCodeTypes = CategoryStatusCodes
.GetAll()
.Select(c => new KeyValuePair <string, string>(c, CategoryStatusCodes.GetStatusText(c)));
viewModel.PhotoNamingThemeTypes = PhotoNamingThemes
.ThemeCodes
.GetAll()
.Select(p => new KeyValuePair <string, string>(p, PhotoNamingThemes.GetThemeDescription(p)));
return(viewModel);
}
