openstack/deb-python-sqlalchemy-utils
Code Issues Proposed changes

Refactor property observer

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This commit is contained in:
Konsta Vesterinen
2014-02-19 16:12:20 +02:00
parent 334823638e
commit ecf4fcdd27
1 changed files with 21 additions and 23 deletions
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44
sqlalchemy_utils/decorators.py
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@@ -88,12 +88,20 @@ class AttributeValueGenerator(object):
property_key,
getdotattr(value, str(path[1:]))
)
elif index == len(path) - 1:
else:
inversed_path = ~path[0:-1]
entities = getdotattr(
target,
str(inversed_path)
)
if index == len(path) - 1:
entities = getdotattr(
target,
str(inversed_path)
)
assigned_value = value
else:
entities = getdotattr(
target,
str(inversed_path[index:])
)
assigned_value = getdotattr(value, str(path[(index + 1):]))
if entities:
if not isinstance(entities, list):
entities = [entities]
@@ -103,30 +111,14 @@ class AttributeValueGenerator(object):
setattr(
e,
property_key,
value
assigned_value
)
else:
setattr(
entity,
property_key,
value
assigned_value
)
else:
inversed_path = ~path[0:-1]
entities = getdotattr(
target,
str(inversed_path[index:])
)
if entities:
if not isinstance(entities, list):
entities = [entities]
for entity in entities:
setattr(
entity,
property_key,
getdotattr(value, str(path[(index + 1):]))
)
def update_generated_properties(self, session, ctx, instances):
for obj in itertools.chain(session.new, session.dirty):
@@ -143,6 +135,12 @@ class AttributeValueGenerator(object):
setattr(obj, attr, func(obj, getdotattr(obj, source)))
class PropertyObserver(object):
def __init__(property, observed_property_path):
pass
generator = AttributeValueGenerator()