1 #

     2 # Copyright (c) 2012 Thierry Florac <tflorac AT onf.fr>

     3 # All Rights Reserved.

     4 #

     5 

     6 

     7 # import standard packages

     8 

     9 # import Zope3 interfaces

    10 from z3c.json.interfaces import IJSONWriter

    11 from zope.tales.interfaces import ITALESFunctionNamespace

    12 

    13 # import local interfaces

    14 from ztfy.myams.interfaces import IMyAMSApplication, IObjectData

    15 from ztfy.myams.interfaces.configuration import IMyAMSConfiguration

    16 from ztfy.myams.tal.interfaces import IMyAMSTalesAPI

    17 

    18 # import Zope3 packages

    19 from zope.component import getUtility

    20 from zope.interface import implements

    21 from zope.security.proxy import removeSecurityProxy

    22 

    23 # import local packages

    24 from ztfy.utils.traversing import getParent

    25 

    26 

    27 class MyAMSTalesAdapter(object):

    28     """myams: TALES adapter"""

    29 

    30     implements(IMyAMSTalesAPI, ITALESFunctionNamespace)

    31 

    32     def __init__(self, context):

    33         self.context = context

    34 

    35     def setEngine(self, engine):

    36         self.request = engine.vars['request']

    37 

    38     def data(self):

    39         data = IObjectData(self.context, None)

    40         if (data is not None) and data.object_data:

    41             writer = getUtility(IJSONWriter)

    42             return writer.write(data.object_data)

    43 

    44     def configuration(self):

    45         application = getParent(self.context, IMyAMSApplication)

    46         if application is not None:

    47             return IMyAMSConfiguration(application, None)

    48 

    49     def resources(self):

    50         application = getParent(self.context, IMyAMSApplication)

    51         if application is not None:

    52             for resource in application.resources:

    53                 removeSecurityProxy(resource).need()