public ActionResult GetAttachmentId(AttachmentKeyModel model)
{
try
{
model.CheckArgumentIsNull(nameof(model));
model.FieldName.CheckArgumentIsNullOrEmpty(nameof(model.FieldName));
model.EntityName.CheckArgumentIsNullOrEmpty(nameof(model.EntityName));
if (model.EntityId.HasValue())
{
var attachmentId = attachmentBusiness.GetAttachmentId(model);//check read permission
if (attachmentId == null)
{
return(Ok(attachmentBusiness.CreateAttachment(model)));//check create permission
}
return(Ok(attachmentId));
}
else
{
var token = tokenProvider.GetAttachmentToken();
if (!token.HasValue())
{
token = tokenProvider.SetAttachmentToken();
}
var tempAttachmentKeyModel = new TemporaryAttachmentKeyModel {
EntityName = model.EntityName, FieldName = model.FieldName, Token = token
};
return(Ok(attachmentBusiness.CreateAttachmentTemporarily(tempAttachmentKeyModel)));//check create permission
}
}
catch (Exception)
{
return(BadRequest());
}
}
//create
public AttachmentModel CreateAttachmentTemporarily(TemporaryAttachmentKeyModel model)
{
if (!_authorization.Create(new AttachmentKeyModel {
EntityName = model.EntityName, FieldName = model.FieldName
}))
{
throw new UnauthorizedAccessException();
}
return(_business.CreateAttachmentTemporarily(model));
}
public AttachmentModel CreateAttachmentTemporarily(TemporaryAttachmentKeyModel model)
{
if (!model.EntityName.HasValue() || !model.FieldName.HasValue() || !model.Token.HasValue())
{
throw new ArgumentNullException();
}
var attachment = new Context.Attachment()
{
EntityName = model.EntityName,
FieldName = model.FieldName,
Token = model.Token
};
_DbContext.Attachments.Add(attachment).State = EntityState.Added;
_DbContext.SaveChanges();
return(new AttachmentModel
{
AttachmentId = attachment.Id,
TotalCount = 0
});
}
