bt5_config: Add interfaces for IPatchable and IJSONRepresentable

product/ERP5/interfaces/json_representable.py

+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2017 Nexedi SA and Contributors. All Rights Reserved.
+#                    Ayush Tiwari <ayush.tiwari@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from zope.interface import Interface
+
+class IJSONRepresentable(Interface):
+  """
+    An interface for objects that can be converted to JSON
+    and back to an ERP5 object.
+
+    This can be useful if we want to use JSON as much
+    as possible in ERP5 in the future and ensure
+    that certain objects (not all) can be converted to JSON
+    back and forth
+  """
+
+  def asJSON():
+    """
+      Returns a JSON representation based on
+      propertysheets and portal properties
+    """
+
+  def fromJSON():
+    """
+      Updates an object based on a JSON representation
+    """

product/ERP5/interfaces/patchable.py

+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2017 Nexedi SA and Contributors. All Rights Reserved.
+#                    Ayush Tiwari <ayush.tiwari@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from zope.interface import Interface
+
+class IPatchable(Interface):
+  """
+    An interface for objects that can be patched. This is useful
+    to raise an exception for some objects that are not meant to be
+    supported by BusinessTemplatePatchItem
+  """
+
+  def patch(patch, path=None, unified_diff_selection=None):
+    """
+      Apply a PortalPatch or PortalPatchOperation to an object
+
+      unified_diff_selection -- a selection of lines in the unified diff
+                                that will be applied
+
+      path -- optional path in case one wants to patch only some properties
+    """