1 #

     2 # Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 

    16 # import standard library

    17 import json

    18 

    19 # import interfaces

    20 from pyams_utils.interfaces.data import IObjectData, IObjectDataRenderer

    21 from pyams_utils.interfaces.tales import ITALESExtension

    22 from pyramid.interfaces import IRequest

    23 from zope.publisher.interfaces.browser import IBrowserRequest

    24 

    25 # import packages

    26 from pyams_utils.adapter import ContextAdapter, ContextRequestViewAdapter, adapter_config

    27 from zope.interface import Interface

    28 

    29 

    30 @adapter_config(context=IObjectData, provides=IObjectDataRenderer)

    31 class ObjectDataRenderer(ContextAdapter):

    32     """Object data JSON renderer"""

    33 

    34     def get_object_data(self):

    35         data = IObjectData(self.context)

    36         return json.dumps(data.object_data) if data is not None else None

    37 

    38 

    39 @adapter_config(name='object_data', context=(Interface, Interface, Interface), provides=ITALESExtension)

    40 class ObjectDataExtension(ContextRequestViewAdapter):

    41     """extension:object_data TALES extension"""

    42 

    43     def render(self, context=None):

    44         if context is None:

    45             context = self.context

    46         renderer = IObjectDataRenderer(context, None)

    47         if renderer is not None:

    48             return renderer.get_object_data()

    49 

    50 

    51 @adapter_config(name='request_data', context=(Interface, IRequest, Interface), provides=ITALESExtension)

    52 class PyramidRequestDataExtension(ContextRequestViewAdapter):

    53     """extension:request_data TALES extension for Pyramid request"""

    54 

    55     def render(self, params=None):

    56         return self.request.annotations.get(params)

    57 

    58 

    59 @adapter_config(name='request_data', context=(Interface, IBrowserRequest, Interface), provides=ITALESExtension)

    60 class BrowserRequestDataExtension(ContextRequestViewAdapter):

    61     """extension:request_data TALES extension for Zope browser request"""

    62 

    63     def render(self, params=None):

    64         return self.request.annotations.get(params)