blob: eac31143db8fbace6289670129eadc9b3918cf40 [file] [log] [blame]
import os
from django.db import models
from django.forms.models import model_to_dict
class PlCoreBase(models.Model):
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
class Meta:
abstract = True
app_label = "core"
def __init__(self, *args, **kwargs):
super(PlCoreBase, self).__init__(*args, **kwargs)
self.__initial = self._dict
@property
def diff(self):
d1 = self.__initial
d2 = self._dict
diffs = [(k, (v, d2[k])) for k, v in d1.items() if v != d2[k]]
return dict(diffs)
@property
def has_changed(self):
return bool(self.diff)
@property
def changed_fields(self):
return self.diff.keys()
def get_field_diff(self, field_name):
return self.diff.get(field_name, None)
def save(self, *args, **kwargs):
super(PlCoreBase, self).save(*args, **kwargs)
self.__initial = self._dict
@property
def _dict(self):
return model_to_dict(self, fields=[field.name for field in
self._meta.fields])