Provides persistence of the transitions of your fsm's models. Backed by the excellent Django FSM package.
Logs can be accessed before a transition occurs and before they are persisted to the database by enabling a cached backend. See Advanced Usage
- remove support for django 2.2 & 4.0
fsm_log_descriptionnow accepts a default description parameter- Document
fsm_log_descriptiondecorator - Add support for Django 4.1
- Add compatibility for python 3.11
- Switch to github actions (from travis-ci)
- Test against django 3.2 and 4.0, then python 3.9 and 3.10
- Drop support for django 1.11, 2.0, 2.1, 3.0, 3.1
- Drop support for python 3.4, 3.5, 3.6
- allow using StateLogManager in migrations #95
- Add support for django3.0
- Drop support for python2
- Address Migration history breakage added in 1.6.1
- Make StateLog.description field nullable
- Add source state on transitions
- Fixed
get_state_displaywith FSMIntegerField (#63) - Fixed handling of transitions if target is None (#71)
- Added
fsm_log_descriptiondecorator (#1, #67) - Dropped support for Django 1.10 (#64)
- cleanup deprecated code.
- add codecov support.
- switch to pytest.
- add Admin integration to visualize past transitions.
- Bring compatibility with Django 2.0 and drop support of unsupported versions
of Django:
1.6,1.7,1.9.
- Python 2.7 and 3.4+
- Django 1.8+
- Django-FSM 2+
First, install the package with pip. This will automatically install any dependencies you may be missing
pip install django-fsm-logRegister django_fsm_log in your list of Django applications:
INSTALLED_APPS = (
...,
'django_fsm_log',
...,
)Then migrate the app to create the database table
python manage.py migrate django_fsm_logThe app listens for the django_fsm.signals.post_transition signal and
creates a new record for each transition.
To query the log:
from django_fsm_log.models import StateLog
StateLog.objects.all()
# ...all recorded logs...By default transitions get recorded for all models. Logging can be disabled for
specific models by adding their fully qualified name to DJANGO_FSM_LOG_IGNORED_MODELS.
DJANGO_FSM_LOG_IGNORED_MODELS = ('poll.models.Vote',)For convenience there is a custom for_ manager method to easily filter on the generic foreign key:
from my_app.models import Article
from django_fsm_log.models import StateLog
article = Article.objects.all()[0]
StateLog.objects.for_(article)
# ...logs for article...We found that our transitions are commonly called by a user, so we've added a decorator to make logging this easy:
from django.db import models
from django_fsm import FSMField, transition
from django_fsm_log.decorators import fsm_log_by
class Article(models.Model):
state = FSMField(default='draft', protected=True)
@fsm_log_by
@transition(field=state, source='draft', target='submitted')
def submit(self, by=None):
passWith this the transition gets logged when the by kwarg is present.
article = Article.objects.create()
article.submit(by=some_user) # StateLog.by will be some_userDecorator that allows to set a custom description (saved on database) to a transitions.
from django.db import models
from django_fsm import FSMField, transition
from django_fsm_log.decorators import fsm_log_description
class Article(models.Model):
state = FSMField(default='draft', protected=True)
@fsm_log_description(description='Article submitted') # description param is NOT required
@transition(field=state, source='draft', target='submitted')
def submit(self, description=None):
pass
article = Article.objects.create()
article.submit() # logged with "Article submitted" description
article.submit(description="Article reviewed and submitted") # logged with "Article reviewed and submitted" description.. TIP:: The "description" argument passed when calling ".submit" has precedence over the default description set in the decorator
The decorator also accepts a allow_inline boolean argument that allows to set the description inside the transition method.
from django.db import models
from django_fsm import FSMField, transition
from django_fsm_log.decorators import fsm_log_description
class Article(models.Model):
state = FSMField(default='draft', protected=True)
@fsm_log_description(allow_inline=True)
@transition(field=state, source='draft', target='submitted')
def submit(self, description=None):
description.set("Article submitted")
article = Article.objects.create()
article.submit() # logged with "Article submitted" descriptionThere is an InlineForm available that can be used to display the history of changes.
To use it expand your own AdminModel by adding StateLogInline to its inlines:
from django.contrib import admin
from django_fsm_log.admin import StateLogInline
@admin.register(FSMModel)
class FSMModelAdmin(admin.ModelAdmin):
inlines = [StateLogInline]You can change the behaviour of this app by turning on caching for StateLog records.
Simply add DJANGO_FSM_LOG_STORAGE_METHOD = 'django_fsm_log.backends.CachedBackend' to your project's settings file.
It will use your project's default cache backend by default. If you wish to use a specific cache backend, you can add to
your project's settings:
DJANGO_FSM_LOG_CACHE_BACKEND = 'some_other_cache_backend'The StateLog object is now available after the django_fsm.signals.pre_transition
signal is fired, but is deleted from the cache and persisted to the database after django_fsm.signals.post_transition
is fired.
This is useful if:
- you need immediate access to StateLog details, and cannot wait until
django_fsm.signals.post_transitionhas been fired - at any stage, you need to verify whether or not the StateLog has been written to the database
Access to the pending StateLog record is available via the pending_objects manager
from django_fsm_log.models import StateLog
article = Article.objects.get(...)
pending_state_log = StateLog.pending_objects.get_for_object(article)pip install tox
toxWe use ruff, black and more, all configured and check via pre-commit. Before committing, run the following:
pip install pre-commit
pre-commit install
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