''' Resources (sub) package, used to connect URLs to views '''


class BaseChildResource:

    def __init__(self, name, parent, model=None):
        ''' Create a child resource

        :param str name: the name of the resource
        :param parent: the parent resouce
        :param model: optional data model for the resource
        '''
        self.__name__ = name
        self.__parent__ = parent
        self.request = parent.request
        self.model = model
        
    def __acl__(self):
        ''' access controll list for the resource '''
        raise NotImplementedError()
    
    def _prepare_form(self, schema, prefill=None, **settings):
        ''' prepares a deform form for the resource'''
        form = schema.as_form(self.request, **settings)
        if prefill is not None:
            form.set_appstruct(prefill)
        return form