I tried using the signals... but setting a new value on the record,
seems to also set it on the _original_data ...which is odd...maybe I'm
not seeing something stupid that I'm doing? If I change my
marketing_status_name data in my view and save, the new data is in
both the _original_data, and in the new property value.
# some extra properties removed to make it shorter to read
from django.db.models import signals
from django.dispatch import dispatcher
from django.db import models
def backup_model_data(sender, instance, signal, *args, **kwargs):
instance._original_data = instance.__dict__.copy()
class MarketingStatus(models.Model):
marketing_status_id = models.AutoField(primary_key=True)
marketing_status_name = models.CharField(blank=True, maxlength=30)
marketing_status_description = models.CharField(blank=True,
maxlength=255)
def save(self):
testing =
self._original_data['marketing_status_name']
testing2 = self.marketing_status_name
triggererror = madeupvariabletotriggererror #
just stuck this here so I can view the data in the browser
super(MarketingStatus, self).save()
class Meta:
db_table = 'marketing_status'
dispatcher.connect(backup_model_data,signal=signals.post_init,sender=MarketingStatus)
On Aug 29, 2:24 pm, Doug B <[EMAIL PROTECTED]> wrote:
> You could probably use the post_init signal to make a copy of the
> model values for comparison in your save method. I'm doing something
> similar to create a special manager object each time a certain model
> instance is created.
>
> Something like this...
>
> def backup_model_data(sender, instance, signal, *args, **kwargs):
> instance._original_data = instance.__dict__.copy()
>
> class YourModel(model.Models):
> ...
> dispatcher.connect(backup_model_data,signal=signals.post_init,
> sender=YourModel)
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