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

"""Error controller"""

from tg import request, expose

from pylons.i18n import ugettext as _

__all__ = ['ErrorController']

class ErrorController(object):

    """

    Generates error documents as and when they are required.

    The ErrorDocuments middleware forwards to ErrorController when error

    related status codes are returned from the application.

    This behaviour can be altered by changing the parameters to the

    ErrorDocuments middleware in your config/middleware.py file.

    """

    @expose('error.html')

    def document(self, *args, **kwargs):

        """Render the error document"""

        resp = request.environ.get('pylons.original_response')

        default_message = ("<p>" + _("We're sorry but we weren't " +

                           "able to process this request.") + "</p>")

        values = dict(prefix=request.environ.get('SCRIPT_NAME', ''),

                      code=int(request.params.get('code', resp.status_int)),

                      message=request.params.get('message', default_message))

        return values