Fieldlist HasContent() GetCount() bug workaround

[mikeudin]

Re: FieldList.GetCount Bug
Hello!
I have a same issue but @pyr's workaround not working for me. Because the issue of fieldlayers based on linked objects. But if FieldList have fieldlayers without linked objects like Solid this code

def CheckFieldHealth (self,doc,field):

        if field == None: return False

        def get_field_layers(field):
            """ Returns all field layers that are referenced in a field list.

            https://developers.maxon.net/forum/topic/11809/iterating-trough-field-list/2

            """

            def flatten_tree(node):
                """ Listifies a GeListNode tree.
                """
                res = []
                while node:
                    res.append(node)
                    for child in node.GetChildren():
                        res += flatten_tree(child)
                    node = node.GetNext()
                return res

            # get the GeListHead for the FieldList
            root = field.GetLayersRoot()
            if root is None:
                return []
            # Get the first node under the GeListHead
            first = root.GetFirst()
            if first is None:
                return []

            # traverse the graph
            return flatten_tree(first)

        error = 0
        for f in get_field_layers(field):


            if f.GetName() != None and f.GetLinkedObject(doc) == None and f[c4d.DESC_NAME]== None:
                error += 1

        if error == field.GetCount(): return False


        return True

will give same result as fieldlayer with destructed object. So how to figure out type of fieldlayer: FieldObject, Fieldlayer, Modifier Layer? Is this layer based on object or tag from OM or not? Thank you!

[Manuel]

hi,

unfortunately, there is nothing in the SDK that will help you in this regard. The only solution i see is to check the type of the layer and hardcode if that layer can have a link or not. Could be just an array containing the IDs of layers that do not have this link.

Cheers,
Manuel

[m_adam]

Hello @mikeudin,

without further questions or postings, we will consider this topic as solved by Monday 05/06/2023 and flag it accordingly.

Thank you for your understanding,
Maxime.