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.. _request_module:

:mod:`repoze.bfg.request`
---------------------------

.. module:: repoze.bfg.request

.. autoclass:: Request
   :members:
   :inherited-members:

   .. attribute:: context

     The :term:`context` will be available as the ``context``
     attribute of the :term:`request` object.  It will be the context
     object implied by the current request.  See
     :ref:`traversal_chapter` for information about context objects.

   .. attribute:: registry

     The :term:`application registry` will be available as the
     ``registry`` attribute of the :term:`request` object.  See
     :ref:`zca_chapter` for more information about the application
     registry.

   .. attribute:: root

      The :term:`root` object will be available as the ``root``
      attribute of the :term:`request` object.  It will be the model
      object at which traversal started (the root).  See
      :ref:`traversal_chapter` for information about root objects.

   .. attribute:: subpath

      The traversal :term:`subpath` will be available as the
      ``subpath`` attribute of the :term:`request` object.  It will
      be a sequence containing zero or more elements (which will be
      Unicode objects).  See :ref:`traversal_chapter` for information
      about the subpath.

   .. attribute:: traversed

      The "traversal path" will be available as the ``traversed``
      attribute of the :term:`request` object.  It will be a sequence
      representing the ordered set of names that were used to
      traverse to the :term:`context`, not including the view name or
      subpath.  If there is a virtual root associated with the
      request, the virtual root path is included within the traversal
      path.  See :ref:`traversal_chapter` for more information.

   .. attribute:: view_name

      The :term:`view name` will be available as the ``view_name``
      attribute of the :term:`request` object.  It will be a single
      string (possibly the empty string if we're rendering a default
      view).  See :ref:`traversal_chapter` for information about view
      names.

   .. attribute:: virtual_root

      The :term:`virtual root` will be available as the
      ``virtual_root`` attribute of the :term:`request` object.  It
      will be the virtual root object implied by the current request.
      See :ref:`vhosting_chapter` for more information about virtual
      roots.

   .. attribute:: virtual_root_path

      The  :term:`virtual  root`  *path*  will be  available  as  the
      ``virtual_root_path`` attribute  of the :term:`request` object.
      It will  be a  sequence representing the  ordered set  of names
      that were  used to  traverse to the  virtual root  object.  See
      :ref:`vhosting_chapter`  for  more  information  about  virtual
      roots.

   .. attribute:: exception

     If an exception was raised by a :term:`root factory` or a
     :term:`view callable`, or at various other points where
     :mod:`repoze.bfg` executes user-defined code during the
     processing of a request, the exception object which was caught
     will be available as the ``exception`` attribute of the request
     within a :term:`exception view`, a :term:`response callback` or a
     :term:`finished callback`.  If no exception occurred, the value
     of ``request.exception`` will be ``None`` within response and
     finished callbacks.

     .. note:: The exception attribute is new in :mod:`repoze.bfg`
        1.3.