content.create needs title or id

the @at_least_one_of('id', 'title') decorator for plone.api.content.create does not allow to create objects of types that do not have a title field.

>>> api.content.create(folder, 'my.person', firstname="Scott", lasname="Tiger")
MissingParameterError: At least one of these parameters must be supplied: id, title.

i think it's a common pattern to compute the title out of other attributes such as first and lastname of a person:

class IPerson(model.Schema):

    firstname = schema.TextLine(
        title=u'Firstname',
        required=True,
    )

    lastname = schema.TextLine(
        title=u'Lastname',
        required=True,
    )

@implementer(IPerson)
class Person(Container):

    @property
    def title(self):
        return self.lastname + " " + self.firstname

    @title.setter
    def title(self, value):
        pass

any objections on removing the decorator or ideas on how to support title-less types too?

Start with the @at_least_one_of('id', 'title') decorator and the plone.api.content.create entry point mentioned in the issue. Read the comment thread for the unresolved decision about removing the requirement or supporting title-less types. Done means the intended validation is defined and covered for content types whose title is derived from other attributes.