public static IQueryable <TTarget> SyncWith <TTarget, TKey>(this IQueryable <TTarget> target,
IQueryable <TTarget> source, Expression <Func <TTarget, TKey> > keySelector,
SyncFields syncFields, params Expression <Func <TTarget, object> >[] syncSelectors)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (keySelector == null)
{
throw new ArgumentNullException(nameof(keySelector));
}
return(target.Provider.Execute <IQueryable <TTarget> >(Expression.Call(null,
((MethodInfo)MethodBase.GetCurrentMethod()).MakeGenericMethod(typeof(TTarget), typeof(TKey)),
target.Expression, source.Expression, Expression.Quote(keySelector), Expression.Constant(syncFields),
Expression.NewArrayInit(typeof(Expression <Func <TTarget, object> >), syncSelectors))));
}
public static IQueryable <TSource> SyncWith <TSource, TKey>(this IEnumerable <TSource> target,
IEnumerable <TSource> source, Func <TSource, TKey> keySelector,
SyncFields fieldSelectionType, params Expression <Func <TSource, object> >[] syncSelectors)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (keySelector == null)
{
throw new ArgumentNullException(nameof(keySelector));
}
var results = target.Join(source, keySelector, keySelector, (t, s) => new { Target = t, Source = s }).ToList();
var syncProperties = syncSelectors.Select(x => x.GetPropertyInfo()).ToList();
var properties = fieldSelectionType == SyncFields.Include ? syncProperties :
typeof(TSource).GetCachedProperties().Where(x => !syncProperties.Contains(x)).ToList();
results.ForEach(x => properties.ForEach(y => y.SetValue(x.Target, y.GetValue(x.Source, null), null)));
return(target.AsQueryable());
}