public static async Task <ImageAsset> Create(DBContext context, ImagePostData post_data)
{
ImageAsset newImage = null;
try
{
newImage = new ImageAsset();
newImage.Album = context.Albums.Find(post_data.AlbumID);
newImage.Name = post_data.Name;
newImage.Description = post_data.Description;
newImage.Location = post_data.Location;
newImage.Tags = new List <ImageTag>();
if (!string.IsNullOrEmpty(post_data.Tags))
{
foreach (string tag in post_data.Tags.Split(' '))
{
newImage.Tags.Add(new ImageTag()
{
Tag = tag, Created = DateTime.Now, Updated = DateTime.Now
});
}
}
newImage.Created = DateTime.Now;
newImage.Updated = DateTime.Now;
context.Add(newImage);
await context.SaveChangesAsync();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
return(newImage);
}
public async Task <IActionResult> DeleteImage(ImagePostData post_data)
{
dynamic retVal = new ExpandoObject();
retVal.success = await ImageAsset.Delete(_context, post_data.ID, _environment.WebRootPath);
retVal.image_id = post_data.ID;
if (!retVal.success)
{
retVal.response = string.Format("Unable to Delete Image ID [{0}].", post_data.ID);
}
return(Json(retVal));
}
public async Task <IActionResult> CreateImage(ImagePostData postData)
{
dynamic retVal = new ExpandoObject();
try
{
retVal.success = true;
// Validate incoming data, and make sure everything is proper
// Check for:
// Album - Ensure it exists in the collection
// - Ensure a folder in _upload_directory exists, if not, create
// Image - Is less than the Max File Size
// - Doesn't already exist in the Album folder
Album album = _context.Albums.Find(postData.AlbumID);
if (album == null)
{
// Need an album, if one was not found, retun an error and let the user know
retVal.success = false;
retVal.response = string.Format("Unable to find an Album with ID [{0}]", postData.AlbumID);
return(retVal);
}
string album_directory = Path.Combine(_environment.WebRootPath, _settings.UploadDirectoryName, album.Name);
if (!Directory.Exists(album_directory))
{
Directory.CreateDirectory(album_directory);
}
// Support for uploading multiple, but UI only allows 1 at a time
foreach (var upload_file in Request.Form.Files)
{
if (upload_file.Length < _settings.MaxUploadSize)
{
string image_path = Path.Combine(album_directory, Path.GetFileName(upload_file.FileName));
if (!System.IO.File.Exists(image_path))
{
using (var stream = new FileStream(image_path, FileMode.Create))
{
await upload_file.CopyToAsync(stream);
postData.Location = string.Format("/{0}/{1}/{2}", _settings.UploadDirectoryName, album.Name, Path.GetFileName(upload_file.FileName));
// Call the Create Method on the ImageAsset Model, it will return it's new instance
ImageAsset newImage = await ImageAsset.Create(_context, postData);
retVal.image_id = newImage.ID;
retVal.image_location = newImage.Location;
retVal.image_name = newImage.Name;
retVal.image_desc = newImage.Description;
}
}
else
{
retVal.success = false;
retVal.response = string.Format("Image already exists [{0}]", image_path);
break;
}
}
else
{
retVal.success = false;
retVal.response = string.Format("Image Exceeds {0}mb", _settings.MaxUploadSize / 1024 / 1024);
break;
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
retVal.success = false;
retVal.response = string.Format("Error Uploading : {0}", ex.Message);
}
return(Json(retVal));
}
