1 # copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

     2 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

     3 #

     4 # This file is part of CubicWeb.

     5 #

     6 # CubicWeb is free software: you can redistribute it and/or modify it under the

     7 # terms of the GNU Lesser General Public License as published by the Free

     8 # Software Foundation, either version 2.1 of the License, or (at your option)

     9 # any later version.

    10 #

    11 # CubicWeb is distributed in the hope that it will be useful, but WITHOUT

    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

    14 # details.

    15 #

    16 # You should have received a copy of the GNU Lesser General Public License along

    17 # with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

    18 

    19 from cubicweb.predicates import has_related_entities

    20 from cubicweb.web.views.ajaxcontroller import ajaxfunc

    21 from cubicweb.web.views.ibreadcrumbs import IBreadCrumbsAdapter

    22 

    23 def _recursive_replace_stream_by_content(tree):

    24     """ Search for streams (i.e. object that have a 'read' method) in a tree

    25     (which branches are lists or tuples), and substitute them by their content,

    26     leaving other leafs identical. A copy of the tree with only lists as

    27     branches is returned.

    28     """

    29     if not isinstance(tree, (list, tuple)):

    30         if hasattr(tree, 'read'):

    31             return tree.read()

    32         return tree

    33     else:

    34         return [_recursive_replace_stream_by_content(value)

    35                 for value in tree]            

    36 

    37 

    38 @ajaxfunc(output_type='json')

    39 def fileupload(self):

    40     """ Return a json copy of the web request formin which uploaded files

    41     are read and their content substitute the received streams.

    42     """

    43     try:

    44         result_dict = {}

    45         for key, value in self._cw.form.items():

    46             result_dict[key] = _recursive_replace_stream_by_content(value)

    47         return result_dict

    48     except Exception as ex:

    49         import traceback as tb

    50         tb.print_exc(ex)

    51 

    52 

    53 class FolderIBreadCrumbsAdapter(IBreadCrumbsAdapter):

    54     __select__ = IBreadCrumbsAdapter.__select__ & has_related_entities('filed_under')

    55 

    56     def parent_entity(self):

    57         return self.entity.filed_under[0]