def _merge_nodes(self, source, replacement):
assert source.graph is replacement.graph
for k, v in source.attrs.items():
if k in replacement.attrs:
old_val = replacement.attrs[k]
if v == old_val:
continue
field = replacement.model._meta.get_field(k)
if isinstance(field, DateTimeField):
new_val = max(pendulum.parse(v),
pendulum.parse(old_val)).isoformat()
else:
# use the longer value, or the first alphabetically if they're the same length
new_val = sorted([v, old_val],
key=lambda x: (-len(str(x)), x))[0]
else:
new_val = source.attrs[k]
replacement.attrs[k] = new_val
from share.models import Person
if replacement.model == Person:
replacement.attrs['name'] = ''
Person.normalize(replacement, replacement.graph)
source.graph.replace(source, replacement)
def test_many_versions(self, change_ids):
p = Person(given_name='John', family_name='Doe', change_id=change_ids.get())
p.save()
names = ['Jane', 'John', 'Jone', 'Jane', 'James', 'Joe', 'Jim', 'Jack', 'Jacklynn']
for name in names:
p.given_name = name
p.change_id = change_ids.get()
p.save()
p.refresh_from_db()
assert p.versions.first() == p.version
for i, name in enumerate(reversed(['John'] + names)):
assert p.versions.all()[i].given_name == name
def test_simple(self, change_ids):
p = Person(given_name='John', family_name='Doe', change_id=change_ids.get())
p.save()
p.given_name = 'Jane'
p.change_id = change_ids.get()
p.save()
assert p.versions.all()[0].given_name == 'Jane'
assert p.versions.all()[1].given_name == 'John'
def test_timestamping(share_source, change_ids):
p = Person(given_name='John', family_name='Doe', change_id=change_ids.get())
p.save()
created, modified = p.date_created, p.date_modified
assert (p.date_created - p.date_modified).total_seconds() < 1
p.given_name = 'Jane'
p.change_id = change_ids.get()
p.save()
assert modified < p.date_modified
assert created == p.date_created
def test_creates_version(self, change_ids):
p = Person(given_name='John',
family_name='Doe',
change_id=change_ids.get())
p.save()
p.refresh_from_db()
assert isinstance(p.version, Person.VersionModel)
def _merge_nodes(self, source, replacement):
assert source.graph is replacement.graph
for k, v in source.attrs.items():
if k in replacement.attrs:
old_val = replacement.attrs[k]
if v == old_val:
continue
field = replacement.model._meta.get_field(k)
if isinstance(field, DateTimeField):
new_val = max(pendulum.parse(v), pendulum.parse(old_val)).isoformat()
else:
# use the longer value, or the first alphabetically if they're the same length
new_val = sorted([v, old_val], key=lambda x: (-len(str(x)), x))[0]
else:
new_val = source.attrs[k]
replacement.attrs[k] = new_val
from share.models import Person
if replacement.model == Person:
replacement.attrs['name'] = ''
Person.normalize(replacement, replacement.graph)
source.graph.replace(source, replacement)
def test_creates_version(share_source, change_ids):
p = Person(given_name='John', family_name='Doe', change_id=change_ids.get())
p.save()
p.refresh_from_db()
assert isinstance(p.version, Person.VersionModel)