protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
string groupName = value?.ToString();
ShareMusicDbContext context = (ShareMusicDbContext)validationContext.GetService(typeof(ShareMusicDbContext));
bool doesNameExists = context
.Groups
.Any(g => g.Name == groupName);
if (doesNameExists)
{
return(new ValidationResult(GetErrorMessage()));
}
return(ValidationResult.Success);
}
public GroupsService(ShareMusicDbContext context, UserManager <User> userManager)
{
this.context = context;
this.userManager = userManager;
}
public RequestsService(ShareMusicDbContext context)
{
this.context = context;
}
public SongsService(ShareMusicDbContext context)
{
this.context = context;
}
public SongMetadataService(ShareMusicDbContext context)
{
this.context = context;
}
