public async Task <ListingImage> AddImage(Guid listingId, byte[] imageContent, string imageMediaType)
{
if (imageContent == null)
{
throw new ArgumentNullException(nameof(imageContent));
}
if (string.IsNullOrWhiteSpace(imageMediaType))
{
throw new ArgumentException("Value cannot be null or whitespace.", nameof(imageMediaType));
}
var listing = await _findListingCoordinator.Find(listingId);
if (listing == null)
{
return(null);
}
var imageFileName = $"{Guid.NewGuid()}";
var url = await _imageStore.PersistArticleEntryMedia(imageFileName, imageContent, imageMediaType);
var image = new ListingImage()
{
Listing = listing,
ListingId = listingId,
Url = url
};
await _dbContext.Add(image);
await _dbContext.SaveChanges();
return(image);
}
public async Task <Listing> Create(EditListingRequest newListing)
{
if (newListing == null)
{
throw new ArgumentNullException(nameof(newListing));
}
var listing = new Listing();
listing.Update(newListing);
if (!_validationHelper.HasValidFields(listing))
{
return(null);
}
await _dbContext.Add(listing);
await _dbContext.SaveChanges();
return(listing);
}
public async Task <Listing> Edit(Guid listingId, Listing existingListing, EditListingRequest editRequest)
{
if (existingListing == null)
{
throw new ArgumentNullException(nameof(existingListing));
}
if (editRequest == null)
{
throw new ArgumentNullException(nameof(editRequest));
}
_dbContext.Attach(existingListing);
existingListing.Update(editRequest);
if (!_validationHelper.HasValidFields(existingListing))
{
return(null);
}
await _dbContext.SaveChanges();
return(existingListing);
}