CoreService filter with SchemaPurpose and Recursive not working

Question

I'm using Core Service API to find all component schemas within a folder recursively.

This is the code.

OrganizationalItemItemsFilterData filter = new OrganizationalItemItemsFilterData();
filter.Recursive = true;
filter.ItemTypes = new[] { ItemType.Schema };
filter.SchemaPurposes = new[] { SchemaPurpose.Component };
IdentifiableObjectData[] results = client.GetList(folderTcm, filter);

When I execute this code the results include all kind of schemas, not only those which purpose is Component.

I realized that if I set Recursive property to false or null it works fine but of course without finding all schemas down through folders.

I've read the API reference but I can't find any place where it's said that SchemaPurposes property can't work with Recursive property in the same filter.

What am I doing wrong?

Edit:

I'm trying to retrieve component schemas inside a specific folder recursively excluding other types of schemas like embedded schemas or metadata schemas.

Answer 1

As Rick mentioned in his comment, it might be that what your trying to achieve is not possible within a single call due to limitations of the system. If that is the case, you will have to do the recursion yourself. I suggest you try and dig up whether such limitation is mentioned in the API (.chm file).

I personally have also ran into some limitations with core service filters using recursion (unfortunately I haven't documented it for myself and I can't recall at this moment what it was). Another example, if I recall correctly is, in 2013sp1 TOM.NET combining recursion and schema name to get organizational item items does not work.

Answer 2

Getting all Components and Schemas in a Publication

RepositoryItemsFilterData filterData = new RepositoryItemsFilterData();
filterData.ItemTypes = new[]
    {
        ItemType.Component,
        ItemType.Schema
    };
filterData.Recursive = true;
XElement resultXml = client.GetListXml(publicationId, filterData);