internal LiteReferenceExpression WithExpandLite(ExpandLite expandLite)
{
switch (expandLite)
{
case ExpandLite.EntityEager:
return(new LiteReferenceExpression(this.Type, this.Reference, this.CustomToStr, lazyToStr: false, eagerEntity: true));
case ExpandLite.ToStringEager:
return(new LiteReferenceExpression(this.Type, this.Reference, this.CustomToStr, lazyToStr: false, eagerEntity: false));
case ExpandLite.ToStringLazy:
return(new LiteReferenceExpression(this.Type, this.Reference, this.CustomToStr, lazyToStr: true, eagerEntity: false));
case ExpandLite.ToStringNull:
return(new LiteReferenceExpression(this.Type, this.Reference, Expression.Constant(null, typeof(string)), lazyToStr: true, eagerEntity: false));
default:
throw new NotImplementedException();
}
}
public static IQueryable <T> ExpandLite <T, L>(this IQueryable <T> source, Expression <Func <T, Lite <L> > > liteSelector, ExpandLite expandLite)
where L : class, IEntity
{
if (source == null)
{
throw new ArgumentNullException("query");
}
return(source.Provider.CreateQuery <T>(Expression.Call(null, ((MethodInfo)MethodBase.GetCurrentMethod()).MakeGenericMethod(new Type[] { typeof(T), typeof(L) }), new Expression[] { source.Expression, Expression.Quote(liteSelector), Expression.Constant(expandLite) })));
}
