private static IEnumerable <MemberExpression> MapProperty(ModelPropertyInfo argumentProperty, WhereBuilderContext context)
{
var info = context.ElementModel;
List <string> names = new List <string>(5);
List <ModelPropertyInfo> chain = new List <ModelPropertyInfo>(5);
names.AddRange(argumentProperty.Maps.Where(o => o.SourceType == info.ModelType).Select(o => o.PropertyName));
if (names.Count == 0)
{
names.Add(argumentProperty.Name);
}
foreach (string name in names.Distinct())
{
chain.Clear();
ModelConvert.FillPropertyChain(info, name, chain);
Debug.Assert(chain.Count > 0);
MemberExpression member = null;
foreach (var mp in chain)
{
member = Expression.MakeMemberAccess((Expression)member ?? context.Parameter, mp.PropertyInfo);
}
yield return(member);
}
}
private static Tuple <Sort, LambdaExpression> ParseSort(Sort sort, ModelInfo model)
{
List <ModelPropertyInfo> chain = new List <ModelPropertyInfo>(3);
ModelConvert.FillPropertyChain(model, sort.PropertyName, chain);
ParameterExpression parameter = Expression.Parameter(model.ModelType, "obj");
MemberExpression member = null;
foreach (var mp in chain)
{
member = Expression.MakeMemberAccess((Expression)member ?? parameter, mp.PropertyInfo);
}
return(Tuple.Create(sort, Expression.Lambda(typeof(Func <,>).MakeGenericType(model.ModelType, member.Type), member, parameter)));
}