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https://github.com/mkalioby/ModelTracker

Track a model object over time and blame users
https://github.com/mkalioby/ModelTracker

django django-models django-models-track middleware

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Track a model object over time and blame users

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# django-model-tracker

Track model object changes over time so that you know who done what.

[![PyPI version](https://badge.fury.io/py/django-model-tracker.svg)](https://badge.fury.io/py/django-model-tracker)
[![Downloads](https://pepy.tech/badge/django-model-tracker)](https://pepy.tech/project/django-model-tracker)

## Installation

* Install the package
* For Django<4.0
```sh
pip install 'django-model-tracker jsonfield'
```
* For Django>=4.0
```sh
pip install 'django-model-tracker'
```

* Add Application to your project's INSTALLED_APPs
```python
INSTALLED_APPS = (
'....',
'ModelTracker',
)
```
* Add the following line to your urls.py
```python
import ModelTracker
urlpatterns = patterns('',
...
url(r'^track/', include('ModelTracker.urls')),
...
)
```
* Run Migrations
```sh
python manage.py migrate ModelTracker
```

* Add the following line to your models.py file
```python
from ModelTracker import Tracker
```
* Convert each Model you want to track to inhert from `Tracker.ModelTracker` instead of `models.Model`

**Old Code**

```python
class Employee(models.Model):
name=models.CharField(max_length=255)
address=models.CharField(max_length=255)
age=models.IntegerField()
```
**New Code**

```python
class Employee(Tracker.ModelTracker):
name=models.CharField(max_length=255)
address=models.CharField(max_length=255)
age=models.IntegerField()
```
* For each save() call, add the user the username
* Old Code
```python
emp=Employee()
emp.save()
```

* New Code
```python
emp=Employee()
emp.save(request.user.username)
```
* Starting from version of 0.5, you can pass a event_name parameter to mark change as an event

* New Code
```python
emp=Employee()
emp.save(request.user.username,event_name="Created the user")
```

# Using The Middleware

You can add `ModelTracker.middleware.ModelTrackerMiddleware` to your Middleware classes to get the username automatically from the request.

```python
MIDDLEWARE_CLASSES = (
'....',
'ModelTracker.middleware.ModelTrackerMiddleware',
)
```

**Note:** If you pass username as `None` then the change won't be saved.

# Showing Record History

There are 3 ways to see the history of a record
1. go to `ModelTracker` url and select `Table` and enter `id`.
2. call `showModelChanges` by POST and send `csrftokenmiddleware` to return history as html.
3. call `getModelChanges` which returns history as Json.

# Django Admin

There is 2 ways to update an object by django admin
1. Handle save and delete in ModelAdmin as follows
```python
def save_model(self, request, obj, form, change):
obj.save(request.user.username,"Editing From admin interface")

def delete_model(self, request, obj):
obj.delete(username=request.user.username, event_name="Deleting From admin interface")
```
2. Inhert from TrackerAdmin rather ModelAdmin
```python
from ModelTracker.Tracker import TrackerAdmin
admin.site.register(employee, TrackerAdmin)
```