Help me! Error in Django. Migrate mysql, datetime and more.

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import models
from django.contrib import admin
from django.contrib import *
from tinymce import models as tinymce_models
from PIL import Image
from django.contrib.auth.models import User
import time
from datetime import date

# Create your models here.

ESTADO_VISIBLE = [1,2]

class ManejadorPost(models.Manager):
def get_query_set(self):
default_queryset = super(ManejadorPost, self).get_query_set()
return default_queryset.filter(status__in=ESTADO_VISIBLE)

class Categorias(models.Model):
nombre = models.CharField(max_length=50)
slug = models.SlugField(max_length=50, unique=True, default='slug')
descripcion = models.TextField()

creada_en = date.today()
actualizada_al = date.today()


class Meta:
db_table = 'categorias'
verbose_name_plural = 'Categorias'

def __unicode__(self):
return self.nombre


class BlogPost(models.Model):
ESTADOS=((1,"Publicado"), (2, 'Archivado'), (3,'Nesecita editarse'), (4,'Nesecita aprobacion'))
status = models.IntegerField(choices=ESTADOS,default=4)
objetos_panel = models.Manager()
objects = ManejadorPost()
title=models.CharField(max_length=150)
author = models.ForeignKey(User)
time = date.today()
categorias_post = models.ManyToManyField(Categorias)
body = tinymce_models.HTMLField()
imagen = models.ImageField(upload_to = "photos")

class Meta:
db_table = 'entradas'
verbose_name_plural = 'Posts'

def __unicode__(self):
return self.title

def __unicode__(self):
return self.body

Hi.

I am learning Django, but, I have major problems because I don´t know much about python/Django.

Here this problem:

problem one : the databases backend does not accept 0 as a ' valueError: The databases backend does not accept 0 as value for AutoField.

problem two: TypeError: int() argument must be a string or a number, not 'datetime.datetime'

Here my models.py

from __future__ import unicode_literals

from django.db import models

from django.contrib import admin

from django.contrib import *

from tinymce import models as tinymce_models

from PIL import Image

from django.contrib.auth.models import User

ESTADO_VISIBLE = [1,2]

class ManejadorPost(models.Manager):

def get_query_set(self):

default_queryset = super(ManejadorPost, self).get_query_set()

return default_queryset.filter(status__in=ESTADO_VISIBLE)

class Categorias(models.Model):

nombre = models.CharField(max_length=50)

slug = models.SlugField(max_length=50, unique=True, default='slug')

descripcion = models.TextField()

creada_en = models.DateTimeField(auto_now_add=True)

actualizada_al = models.DateTimeField(auto_now=True)

class Meta:

db_table = 'categorias'

verbose_name_plural = 'Categorias'

def __unicode__(self):

return self.nombre

class BlogPost(models.Model):

ESTADOS=((1,"Publicado"), (2, 'Archivado'), (3,'Nesecita editarse'), (4,'Nesecita aprobacion'))

status = models.IntegerField(choices=ESTADOS,default=4)

objetos_panel = models.Manager()

objects = ManejadorPost()

title=models.CharField(max_length=150)

author = models.ForeignKey(User)

time = models.DateTimeField(auto_now=True)

categorias_post = models.ManyToManyField(Categorias)

body = tinymce_models.HTMLField()

imagen = models.ImageField(upload_to = "photos")

class Meta:

db_table = 'entradas'

verbose_name_plural = 'Posts'

def __unicode__(self):

return self.title

def __unicode__(self):

return self.body

I hope you will join me. 

Thanks....

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