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Restrict versioning to one level of depth for speed

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Also fixed the template for nested changes
This commit is contained in:
FreneticScribbler
2020-09-01 13:41:12 +01:00
parent 6ee9efa39e
commit 1d5429052f
4 changed files with 36 additions and 34 deletions
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63
versioning/versioning.py
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@@ -69,7 +69,7 @@ class FieldComparison(object):
class ModelComparison(object):
def __init__(self, old=None, new=None, version=None, excluded_keys=[]):
def __init__(self, old=None, new=None, version=None, follow=False, excluded_keys=[]):
# recieves two objects of the same model, and compares them. Returns an array of FieldCompare objects
try:
self.fields = old._meta.get_fields()
@@ -80,6 +80,7 @@ class ModelComparison(object):
self.new = new
self.excluded_keys = excluded_keys
self.version = version
self.follow = follow
@cached_property
def revision(self):
@@ -117,42 +118,41 @@ class ModelComparison(object):
@cached_property
def item_changes(self):
item_type = ContentType.objects.get_for_model(self.version.object)
old_item_versions = self.version.parent.revision.version_set.exclude(content_type=item_type)
new_item_versions = self.version.revision.version_set.exclude(content_type=item_type)
if self.follow:
item_type = ContentType.objects.get_for_model(self.version.object)
old_item_versions = self.version.parent.revision.version_set.exclude(content_type=item_type)
new_item_versions = self.version.revision.version_set.exclude(content_type=item_type)
comparisonParams = {'excluded_keys': ['id', 'event', 'order', 'checklist']}
comparisonParams = {'excluded_keys': ['id', 'event', 'order', 'checklist']}
# Build some dicts of what we have
item_dict = {} # build a list of items, key is the item_pk
# FIXME Removing the if checks makes things REALLY slow...
for version in old_item_versions: # put all the old versions in a list
print(version)
# if version.field_dict["event_id"] == int(self.new.pk):
compare = ModelComparison(old=version._object_version.object, **comparisonParams)
item_dict[version.object_id] = compare
# Build some dicts of what we have
item_dict = {} # build a list of items, key is the item_pk
for version in old_item_versions: # put all the old versions in a list
# if version.field_dict["event_id"] == int(self.new.pk):
compare = ModelComparison(old=version._object_version.object, **comparisonParams)
item_dict[version.object_id] = compare
for version in new_item_versions: # go through the new versions
# if version.field_dict["event_id"] == int(self.new.pk):
try:
compare = item_dict[version.object_id] # see if there's a matching old version
compare.new = version._object_version.object # then add the new version to the dictionary
except KeyError: # there's no matching old version, so add this item to the dictionary by itself
compare = ModelComparison(new=version._object_version.object, **comparisonParams)
for version in new_item_versions: # go through the new versions
# if version.field_dict["event_id"] == int(self.new.pk):
try:
compare = item_dict[version.object_id] # see if there's a matching old version
compare.new = version._object_version.object # then add the new version to the dictionary
except KeyError: # there's no matching old version, so add this item to the dictionary by itself
compare = ModelComparison(new=version._object_version.object, **comparisonParams)
if compare.new:
compare.name = str(compare.new)
else:
compare.name = str(compare.old)
if compare.new:
compare.name = str(compare.new)
else:
compare.name = str(compare.old)
item_dict[version.object_id] = compare # update the dictionary with the changes
item_dict[version.object_id] = compare # update the dictionary with the changes
changes = []
for (_, compare) in list(item_dict.items()):
if compare.fields_changed:
changes.append(compare)
changes = []
for (_, compare) in list(item_dict.items()):
if compare.fields_changed:
changes.append(compare)
return changes
return changes
@cached_property
def items_changed(self):
@@ -199,5 +199,6 @@ class RIGSVersion(Version):
return ModelComparison(
version=self,
new=self._object_version.object,
old=self.parent._object_version.object if self.parent else None
old=self.parent._object_version.object if self.parent else None,
follow=True
)