def getChainFor(self, ob, managescreen=False):
"""Returns the chain that applies to the object.
If chain doesn't exist we return None to get a fallback from
portal_workflow.
@parm managescreen: If True return the special tuple
('default') instead of the actual default
chain (hack).
"""
cbt = self._chains_by_type
if type(ob) == type(''):
pt = ob
elif hasattr(aq_base(ob), '_getPortalTypeName'):
pt = ob._getPortalTypeName()
else:
pt = None
if pt is None:
return None
chain = None
if cbt is not None:
chain = cbt.get(pt, _MARKER)
# Backwards compatibility: before chain was a string, not a list
if chain is not _MARKER and type(chain) == type(''):
chain = map(lambda x: x.strip(), chain.split(','))
Log(LOG_DEBUG, 'Chain founded in policy', chain)
if chain is _MARKER or chain is None:
return None
elif len(chain) == 1 and chain[0] == DEFAULT_CHAIN:
default = self.getDefaultChain(ob)
if default:
if managescreen:
return chain[0]
else:
return default
else:
return None
return chain
def _initChains(self, node):
""" Import policies from XML
Types specified are in two cases:
- a default_chain attribute is present
- zero or more workflows are presents then type take the chain in the
same order
For any types not specified, we do nothing and they will acquire their
chain from another policy or from portal_workfow.
"""
seen = set()
for child in node.childNodes:
if child.nodeName != 'bindings':
continue
for sub in child.childNodes:
if sub.nodeName == 'default':
self.context.setDefaultChain(self._getChain(sub))
if sub.nodeName == 'type':
type_id = str(sub.getAttribute('type_id'))
assert type_id not in seen, (
'Type %s listed more than once' % type_id)
seen.add(type_id)
default = sub.getAttribute('default_chain')
chain = self._getChain(sub)
Log(LOG_DEBUG, default, chain)
assert not (default and chain), (
'Type %s is marked to use default but also '
'included a chain: %s' % (type_id, chain))
if default:
# omit from the policy to acquire
self.context.setChain(type_id, (DEFAULT_CHAIN, ))
else:
self.context.setChain(type_id, chain)
def name(self):
Log(LOG_DEBUG, self.context.id)
return self.context.id