def serializer_factory_for_field(field_iface):
'''Get an XML serializer factory for a zope.schema.Field interface.
'''
assert field_iface.extends(IField)
factory = adapter_registry.lookup([field_iface], IXmlSerializer,
'serialize-xml')
return factory
def serializer_factory_for_object(obj_iface):
'''Get an XML serializer factory for an IObject-based interface.
'''
assert obj_iface.isOrExtends(IObject)
factory = adapter_registry.lookup([obj_iface], IXmlSerializer,
'serialize-xml')
return factory
def _get_field_factory(cls, key, field):
'''Find a factory for a field.
If key is supplied, we try to find it via a class attribute. If it fails
(or key is not supplied), we fall back to an adapter lookup on field's
schema.
'''
# Check if a factory is defined explicitly as a class attribute
if key and hasattr(cls, key):
factory = getattr(cls, key)
return factory if callable(factory) else None
# If reached here, there is no hint via class attribute.
# Try to find a factory for this field.
if not field:
schema = cls.get_schema()
field = schema.get(key)
assert field, 'No field %r in schema %s' % (key, schema)
factory = None
if isinstance(field, zope.schema.Object):
factory = adapter_registry.lookup([], field.schema)
else:
factory = field.defaultFactory
return factory
def serializer_factory_for_field(field_iface, name='default'):
'''Get a proper serializer factory for a zope.schema.Field interface.
'''
assert field_iface.extends(IField)
assert name in supported_formats
factory = adapter_registry.lookup(
[field_iface], ISerializer, 'serialize:%s' %(name))
return factory
def serializer_factory_for_field(field_iface, name='default'):
'''Get a proper serializer factory for a zope.schema.Field interface.
'''
assert field_iface.extends(IField)
assert name in supported_formats
factory = adapter_registry.lookup(
[field_iface], ISerializer, 'serialize:%s' %(name))
return factory
def test_adapter_registry():
info1 = adapter_registry.queryMultiAdapter([], IContactInfo)
assert info1
assert zope.interface.verify.verifyObject(IContactInfo, info1)
pt1 = adapter_registry.queryMultiAdapter([], IPoint)
assert pt1
assert zope.interface.verify.verifyObject(IPoint, pt1)
cls = adapter_registry.lookup([], IContactInfo)
assert cls
assert zope.interface.verify.verifyClass(IContactInfo, cls)
def test_adapter_registry():
info1 = adapter_registry.queryMultiAdapter([], IContactInfo)
assert info1
assert zope.interface.verify.verifyObject(IContactInfo, info1)
pt1 = adapter_registry.queryMultiAdapter([], IPoint)
assert pt1
assert zope.interface.verify.verifyObject(IPoint, pt1)
cls = adapter_registry.lookup([], IContactInfo)
assert cls
assert zope.interface.verify.verifyClass(IContactInfo, cls)
def __init__(self, iface, name='', opts={}):
if not iface.extends(IObject):
raise ValueError('Expected an interface based on IObject')
self.target_iface = iface
self.name = name
self.target_factory = adapter_registry.lookup([], iface, name)
if not self.target_factory:
raise LookupError(
'Cannot find an implementor for %s named %r' %
(iface, name))
self.opts = {'unserialize-values': False}
self.opts.update(opts)
def serializer_factory_for_object(obj_iface):
"""Get an XML serializer factory for an IObject-based interface.
"""
assert obj_iface.isOrExtends(IObject)
factory = adapter_registry.lookup([obj_iface], IXmlSerializer, "serialize-xml")
return factory
def serializer_factory_for_field(field_iface):
"""Get an XML serializer factory for a zope.schema.Field interface.
"""
assert field_iface.extends(IField)
factory = adapter_registry.lookup([field_iface], IXmlSerializer, "serialize-xml")
return factory
def serializer_factory_for_key_tuple():
'''Get a proper serializer factory for the tuple-typed keys of a dict.
'''
factory = adapter_registry.lookup([], ISerializer, 'serialize-key')
return factory
def serializer_factory_for_key_tuple():
'''Get a proper serializer factory for the tuple-typed keys of a dict.
'''
factory = adapter_registry.lookup([], ISerializer, 'serialize-key')
return factory