# -*- encoding: utf-8 -*-
from django.db import models
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes import generic

from datetime import datetime

class Change(models.Model):
    ACTIOINS = ( ( "add", "object added" ),
                 ( "edit", "object edited" ),
                 ( "delete", "object deleted" ),
               )
    
    content_type = models.ForeignKey(ContentType, db_index=True)
    object_id = models.PositiveIntegerField()
    date = models.DateTimeField( default = datetime.now ) 
    action = models.CharField( max_length = 6, choices = ACTIOINS )
    
    object = generic.GenericForeignKey()
    
    class Admin:
        """Set what's displayed in admin"""
        list_display = ( 'content_type', 'object_id', 'action', "date" )
        
    def __unicode__(self):
        return u'%s#%d To action:`%s`, added in %s'%(self.content_type, self.object_id, self.action, self.date)