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complex query.

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David 2018-02-12 20:30:03 -06:00
parent 6fa59c3035
commit babce13871
1 changed files with 0 additions and 25 deletions
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PoweredSoft.DynamicLinq/Helpers/QueryableHelpers.cs
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@ -142,33 +142,8 @@ namespace PoweredSoft.DynamicLinq.Helpers
return lambda; return lambda;
} }
// TODO special handling for collections.
if (IsEnumerable(memberExpression)) if (IsEnumerable(memberExpression))
{ {
/* //// first recursion.
//var typeOfClass = typeof(Author);
//var parameter = Expression.Parameter(typeOfClass, "t");
//var posts = Expression.PropertyOrField(parameter, "Posts");
//// second recursion
//{
// var subListType = posts.Type.GetGenericArguments().First();
// var innerParam = Expression.Parameter(subListType, "t2");
// var field = Expression.PropertyOrField(innerParam, "Title");
// var innerCondition = PoweredSoft.DynamicLinq.Helpers.QueryableHelpers.GetConditionExpressionForMember(innerParam, field, ConditionOperators.Equal, Expression.Constant("Match"));
// var lambda = Expression.Lambda(innerCondition, innerParam);
// // any
// var anyMethod = typeof(Enumerable).GetMethods(BindingFlags.Static | BindingFlags.Public).First(t => t.Name == "All" && t.GetParameters().Count() == 2);
// var genericAnyMethod = anyMethod.MakeGenericMethod(subListType);
// var subExpression = Expression.Call(genericAnyMethod, posts, lambda);
// var finalLambda = Expression.Lambda<Func<Author, bool>>(subExpression, parameter);
// query = query.Where(finalLambda);
//}
*/
var listGenericArgumentType = memberExpression.Type.GetGenericArguments().First(); var listGenericArgumentType = memberExpression.Type.GetGenericArguments().First();
var innerParameter = Expression.Parameter(listGenericArgumentType, $"t{++recursionStep}"); var innerParameter = Expression.Parameter(listGenericArgumentType, $"t{++recursionStep}");
var innerLambda = InternalCreateFilterExpression(recursionStep, listGenericArgumentType, innerParameter, innerParameter, parts.Skip(1).ToList(), condition, value, convertStrategy, collectionHandling); var innerLambda = InternalCreateFilterExpression(recursionStep, listGenericArgumentType, innerParameter, innerParameter, parts.Skip(1).ToList(), condition, value, convertStrategy, collectionHandling);