/// <summary>
/// Deletes the first specified entity, if it exists. Returns entity or null (if it doesn't exist).
/// If specification doesn't match only one entity, then the first one found will be deleted.
/// </summary>
/// <typeparam name="T">The entity type to delete.</typeparam>
/// <param name="spec">An entity specification.</param>
/// <returns>The deleted entity or null (if no such entity).</returns>
public T Delete <T>(ISpecification <T> spec, bool hardDelete = false, params Expression <Func <T, object> >[] includes) where T : BaseEntity
{
IQueryable <T> set = DataContext.ISet <T>();
foreach (var include in includes)
{
set = set.Include(include);
}
var entity = set.FirstOrDefault(spec.AsExpression());
if (entity != null)
{
if (!hardDelete)
{
entity.IsDeleted = true;
}
else
{
DataContext.ISet <T>().Remove(entity);
}
}
return(entity);
}
public void AddEntity <T>(T o) where T : BaseEntity
{
DataContext.ISet <T>().Add(o);
}