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Models and mixins for recording changes in Django models

Project Description



  • Tested against Python 2.7 and 3.4
  • django-record supports django 1.7 or later.
  • Requires pandas 0.17.0 or later.
  • Requires faker for tests.


pip install django-record


Often there are situations where you want to record your properties of your models and where you want to track their changes. Although that recording process can be implemented by handcrafted, ad-hoc signals or overriding save() methods of your models, it’s not a generic way, and it’ll eventually mess up your code base.

django-record automatically creates an snapshot-like extra record when an audited Django model instance has been changed either directly or indirectly, without messing up your code base.

RecordModel will detect any changes in recording_fields of recording_model at it’s post_save time or auditing_relatives’s post_save time and create an new record for it.

You can access records via record manager records in your recorded model instance. You can also access recorded model’s instance via recording, which is in effect just ordinary ForeignKey, from your records.

More conveniently, just mix RecordedModelMixin into your model and provide recording_fields and auditing_relatives.


from django.db import models
from django_record.mixins import RecordedModelMixin

class MyTopic(models.Model):
    title = models.CharField(max_length=100)

class MyArticle(RecordedModelMixin, models.Model):
    topic = models.ForeignKey(MyTopic)
    text = models.TextField()

    def my_local_property(self):
        return self.text

    def my_nonlocal_property(self):
        return self.topic.title + self.text

    # We will monitor `topic` relative to watch if he changes!
    auditing_relatives = ['topic']

    recording_fields = [
        # Record changes of the model instance's `text` field
        # Yayy! we can record changes on properties too!
        ('my_local_property', models.TextField()),
        # Even indirect effects from relatives are recordable!
        ('my_nonlocal_property', models.TextField())

 # To get the model instance's all records
 >>> my_article.records.all()

 # To get queryset of the model instance's records created in specific
 # time threshold
 >>> my_article.records.created_in_years(2)
 >>> my_article.records.created_in_days(3)
 >>> my_article.records.created_in_minutes(5)

 # To resample records of today by hour
 >>> my_article.records.created_in_days().resample('T')

 # To get record contents
 >>> my_article.records.first().text
 >>> my_article.records.first().my_local_property
 >>> my_article.records.first().my_nonlocal_property


  • Recursive auditing is currently not supported. Indirect effect only those from direct relatives will be detected and recorded.
  • Only primitive types are supported for properties. You must offer appropriate django field for them.
  • RecordModel is also a subclass of TimeStampedModel, so make sure that you don’t record either ‘created’ or ‘modified’ fields.


11.09.2015 (0.2.5 release)

  • Renamed TimeStampedModel to AbstractTimeStampedModel.
  • Replaced monkey patched shortcut properties with RecordQueryset filters. Those shortcut properties are now deprecated.


  • Support Python 3.4


  • Following shortcut properties added to recording_model. All of properties below are ordinary django querysets.
    • records_in_hour: Records created in last recent hour.
    • records_in_day: Records created today.
    • records_in_week: Records created in this week.
    • records_in_month: Records created in this month.
    • records_in_year: Records created in this year.
  • Following shortcut properties providing resampled records has been added to recording_model. All of properties below are ordinary django querysets.
    • resampled_records_in_hour: Records created in last recent hour, resampled with minutes.
    • resampled_records_in_day: Records created today, resampled with hours.
    • resampled_records_in_week: Records created in this week, resamped with days.
    • resampled_records_in_month: Records created in this month, resampled with days.
    • resamped_records_in_year: Records created in this year, resampled with months.


  • RecordedModelMixin added.

Release History

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