senaite.core.schema.traversal

Complexity

Total Complexity

3

Size/Duplication

Total Lines	28
Duplicated Lines	0 %

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	FieldTraversal.traverse()	0	7	2
A	FieldTraversal.__init__()	0	3	1

# -*- coding: utf-8 -*-

from bika.lims import api
from zope.component import adapter
from zope.interface import Interface
from zope.interface import implementer
from zope.publisher.interfaces.browser import IBrowserRequest
from zope.traversing.interfaces import ITraversable
from zope.traversing.interfaces import TraversalError


@adapter(Interface, IBrowserRequest)
@implementer(ITraversable)
class FieldTraversal(object):
    """Allow to traverse schema fields via the ++field++ namespace.
    """
    def __init__(self, context, request=None):
        self.context = context
        self.request = request

    def traverse(self, name, ignored):
        fields = api.get_fields(self.context)
        field = fields.get(name)
        if not field:
            raise TraversalError(name)
        field = field.bind(self.context)
        return field