def build_adaptee(field, expand_collection=True):
'''Build an adaptee vector for a field instance.
This vector is to be used while trying to adapt on fields (for serialization,
formatting, widgets etc.).
'''
# Load (if not already) the object-factory lookup function.
# Note it must be lazily loaded, as is not available at module's load time.
from ckanext.publicamundi.lib.metadata import factory_for
# Build adaptee vector
adaptee = [field]
if not expand_collection:
return adaptee
y = field
while IContainerField.providedBy(y):
adaptee.append(y.value_type)
y = y.value_type
if not (y is field) and IObjectField.providedBy(y):
# Need a multiadapter for a (probably nested) container of objects:
# replace field (instance of ObjectField) with a dummy object
adaptee[-1] = factory_for(y.schema)()
return adaptee
def build_adaptee(field, expand_collection=True):
'''Build an adaptee vector for a field instance.
This vector is to be used while trying to adapt on fields (for serialization,
formatting, widgets etc.).
'''
# Load (if not already) the object-factory lookup function.
# Note it must be lazily loaded, as is not available at module's load time.
from ckanext.publicamundi.lib.metadata import factory_for
# Build adaptee vector
adaptee = [field]
if not expand_collection:
return adaptee
y = field
while IContainerField.providedBy(y):
adaptee.append(y.value_type)
y = y.value_type
if not (y is field) and IObjectField.providedBy(y):
# Need a multiadapter for a (probably nested) container of objects:
# replace field (instance of ObjectField) with a dummy object
adaptee[-1] = factory_for(y.schema)()
return adaptee
def test_factories():
# Test with IFooMetadata
f1 = factory_for(schemata.IFooMetadata)
o1 = f1()
verifyObject(schemata.IFooMetadata, o1)
assert isinstance(o1, types.FooMetadata)
f1 = factory_for_metadata('foo')
o1 = f1()
verifyObject(schemata.IFooMetadata, o1)
assert isinstance(o1, types.FooMetadata)
c1 = class_for(schemata.IFooMetadata)
verifyObject(IIntrospective, c1, tentative=1)
o1 = c1()
verifyObject(schemata.IFooMetadata, o1)
assert c1 is types.FooMetadata
c1 = class_for_metadata('foo')
verifyObject(IIntrospective, c1, tentative=1)
o1 = c1()
verifyObject(schemata.IFooMetadata, o1)
assert c1 is types.FooMetadata
# Test with AnotherFoo
def check_foo1_after_init(o):
return (
o.baz == u'Baobab' and
o.temporal_extent is None and
isinstance(o.contact_info, types.ContactInfo))
f2 = factory_for(schemata.IFooMetadata, name='foo-1')
o2 = f2()
verifyObject(schemata.IFooMetadata, o2)
assert isinstance(o2, AnotherFoo)
assert check_foo1_after_init(o2)
f2 = factory_for_metadata('foo.1')
o2 = f2()
verifyObject(schemata.IFooMetadata, o2)
assert isinstance(o2, AnotherFoo)
assert check_foo1_after_init(o2)
c2 = class_for(schemata.IFooMetadata, 'foo-1')
verifyObject(IIntrospective, c2, tentative=1)
o2 = c2()
verifyObject(schemata.IFooMetadata, o2)
assert c2 is AnotherFoo
assert check_foo1_after_init(o2)
c2 = class_for_metadata('foo.1')
verifyObject(IIntrospective, c2, tentative=1)
o2 = c2()
verifyObject(schemata.IFooMetadata, o2)
assert c2 is AnotherFoo
assert check_foo1_after_init(o2)
# Test with non-registered names
try:
f3 = factory_for(schemata.IFooMetadata, name='a-non-existing-name')
except (ValueError, LookupError) as ex:
pass
else:
assert False, 'This should have failed'
try:
f3 = factory_for_metadata('')
except ValueError as ex:
pass
else:
assert False, 'This should have failed (a name is required!)'
try:
f3 = factory_for_metadata('foo.9')
except (ValueError, LookupError) as ex:
pass
else:
assert False, 'This should have failed'
def test_factories():
# Test with IFooMetadata
f1 = factory_for(schemata.IFooMetadata)
o1 = f1()
verifyObject(schemata.IFooMetadata, o1)
assert isinstance(o1, types.FooMetadata)
f1 = factory_for_metadata('foo')
o1 = f1()
verifyObject(schemata.IFooMetadata, o1)
assert isinstance(o1, types.FooMetadata)
c1 = class_for(schemata.IFooMetadata)
verifyObject(IIntrospective, c1, tentative=1)
o1 = c1()
verifyObject(schemata.IFooMetadata, o1)
assert c1 is types.FooMetadata
c1 = class_for_metadata('foo')
verifyObject(IIntrospective, c1, tentative=1)
o1 = c1()
verifyObject(schemata.IFooMetadata, o1)
assert c1 is types.FooMetadata
# Test with AnotherFoo
def check_foo1_after_init(o):
return (o.baz == u'Baobab' and o.temporal_extent is None
and isinstance(o.contact_info, types.ContactInfo))
f2 = factory_for(schemata.IFooMetadata, name='foo-1')
o2 = f2()
verifyObject(schemata.IFooMetadata, o2)
assert isinstance(o2, AnotherFoo)
assert check_foo1_after_init(o2)
f2 = factory_for_metadata('foo.1')
o2 = f2()
verifyObject(schemata.IFooMetadata, o2)
assert isinstance(o2, AnotherFoo)
assert check_foo1_after_init(o2)
c2 = class_for(schemata.IFooMetadata, 'foo-1')
verifyObject(IIntrospective, c2, tentative=1)
o2 = c2()
verifyObject(schemata.IFooMetadata, o2)
assert c2 is AnotherFoo
assert check_foo1_after_init(o2)
c2 = class_for_metadata('foo.1')
verifyObject(IIntrospective, c2, tentative=1)
o2 = c2()
verifyObject(schemata.IFooMetadata, o2)
assert c2 is AnotherFoo
assert check_foo1_after_init(o2)
# Test with non-registered names
try:
f3 = factory_for(schemata.IFooMetadata, name='a-non-existing-name')
except (ValueError, LookupError) as ex:
pass
else:
assert False, 'This should have failed'
try:
f3 = factory_for_metadata('')
except ValueError as ex:
pass
else:
assert False, 'This should have failed (a name is required!)'
try:
f3 = factory_for_metadata('foo.9')
except (ValueError, LookupError) as ex:
pass
else:
assert False, 'This should have failed'
