def test(self, context, tested_base_category_list=None,
strict_membership=0, isMemberOf=None, **kw):
"""
A Predicate can be tested on a given context.
Parameters can passed in order to ignore some conditions.
- tested_base_category_list: this is the list of category that we do
want to test. For example, we might want to test only the
destination or the source of a predicate.
- if strict_membership is specified, we should make sure that we
are strictly a member of tested categories
- isMemberOf can be a function caching results for
CategoryTool.isMemberOf: it is always called with given 'context' and
'strict_membership' values, and different categories.
"""
self = self.asPredicate()
if self is None:
# asPredicate returned None, so this predicate never applies.
# But if we reach this it is because catalog is not up to date.
return False
result = 1
if getattr(aq_base(self), '_identity_criterion', None) is None:
self._identity_criterion = PersistentMapping()
self._range_criterion = PersistentMapping()
# LOG('PREDICATE TEST', 0,
# 'testing %s on context of %s' % \
# (self.getRelativeUrl(), context.getRelativeUrl()))
for property, value in self._identity_criterion.iteritems():
if isinstance(value, (list, tuple)):
result = context.getProperty(property) in value
else:
result = context.getProperty(property) == value
# LOG('predicate test', 0,
# '%s after prop %s : %s == %s' % \
# (result, property, context.getProperty(property), value))
if not result:
return result
for property, (min, max) in self._range_criterion.iteritems():
value = context.getProperty(property)
if min is not None:
result = value >= min
# LOG('predicate test', 0,
# '%s after prop %s : %s >= %s' % \
# (result, property, value, min))
if not result:
return result
if max is not None:
result = value < max
# LOG('predicate test', 0,
# '%s after prop %s : %s < %s' % \
# (result, property, value, max))
if not result:
return result
multimembership_criterion_base_category_list = \
self.getMultimembershipCriterionBaseCategoryList()
membership_criterion_base_category_list = \
self.getMembershipCriterionBaseCategoryList()
tested_base_category = {}
# LOG('predicate test', 0,
# 'categories will be tested in multi %s single %s as %s' % \
# (multimembership_criterion_base_category_list,
# membership_criterion_base_category_list,
# self.getMembershipCriterionCategoryList()))
# Test category memberships. Enable the read-only transaction cache
# because this part is strictly read-only, and context.isMemberOf
# is very expensive when the category list has many items.
if isMemberOf is None:
isMemberOf = context._getCategoryTool().isMemberOf
with readOnlyTransactionCache():
for c in self.getMembershipCriterionCategoryList():
bc = c.split('/', 1)[0]
if tested_base_category_list is None or bc in tested_base_category_list:
if bc in multimembership_criterion_base_category_list:
if not isMemberOf(context, c, strict_membership=strict_membership):
return 0
elif bc in membership_criterion_base_category_list and \
not tested_base_category.get(bc):
tested_base_category[bc] = \
isMemberOf(context, c, strict_membership=strict_membership)
if 0 in tested_base_category.itervalues():
return 0
# Test method calls
test_method_id_list = self.getTestMethodIdList()
if test_method_id_list is not None :
for test_method_id in test_method_id_list :
if test_method_id is not None:
method = getattr(context,test_method_id)
try:
result = method(self)
except TypeError:
if method.func_code.co_argcount != isinstance(method, MethodType):
raise
# backward compatibilty with script that takes no argument
warn('Predicate %s uses an old-style method (%s) that does not'
' take the predicate as argument' % (
self.getRelativeUrl(), method.__name__), DeprecationWarning)
result = method()
# LOG('predicate test', 0,
# '%s after method %s ' % (result, test_method_id))
if not result:
return result
test_tales_expression = self.getTestTalesExpression()
if test_tales_expression != 'python: True':
expression = Expression(test_tales_expression)
from Products.ERP5Type.Utils import createExpressionContext
# evaluate a tales expression with the tested value as context
result = expression(createExpressionContext(context))
return result
def test(self, context, tested_base_category_list=None, **kw):
"""
A Predicate can be tested on a given context.
Parameters can passed in order to ignore some conditions.
- tested_base_category_list: this is the list of category that we do
want to test. For example, we might want to test only the
destination or the source of a predicate.
This method returns portal type name if test success, else returns False.
"""
self = self.asPredicate()
result = 1
if getattr(aq_base(self), '_identity_criterion', None) is None:
self._identity_criterion = {}
self._range_criterion = {}
for property, value in self._identity_criterion.iteritems():
result = result and (context.getProperty(property) in value)
for property, (min, max) in self._range_criterion.iteritems():
value = context.getProperty(property)
if min is not None:
result = result and (value >= min)
if max is not None:
result = result and (value < max)
multimembership_criterion_base_category_list = \
self.getMultimembershipCriterionBaseCategoryList()
membership_criterion_base_category_list = \
self.getMembershipCriterionBaseCategoryList()
tested_base_category = {}
membership_criterion_category_list = \
self.getMembershipCriterionCategoryList()
if tested_base_category_list is not None:
membership_criterion_category_list = [x for x in \
membership_criterion_category_list if x.split('/', 1)[0] in \
tested_base_category_list]
# Test category memberships. Enable the read-only transaction cache
# because this part is strictly read-only, and context.isMemberOf
# is very expensive when the category list has many items.
with readOnlyTransactionCache():
for c in membership_criterion_category_list:
bc = c.split('/', 1)[0]
if (bc not in tested_base_category) and \
(bc in multimembership_criterion_base_category_list):
tested_base_category[bc] = 1
elif (bc not in tested_base_category) and \
(bc in membership_criterion_base_category_list):
tested_base_category[bc] = 0
if (bc in multimembership_criterion_base_category_list):
tested_base_category[bc] = tested_base_category[bc] and \
context.isMemberOf(c)
elif (bc in membership_criterion_base_category_list):
tested_base_category[bc] = tested_base_category[bc] or \
context.isMemberOf(c)
result = result and (0 not in tested_base_category.values())
# Test method calls
test_method_id_list = self.getTestMethodIdList()
if test_method_id_list:
for test_method_id in test_method_id_list:
if (test_method_id is not None) and result:
method = getattr(context, test_method_id)
result = result and method(self)
else:
result = result and self.getDestinationPortalType()
return result
