models.py

import datetime

from django.db import models
from django.utils import timezone
from django.core.urlresolvers import reverse

# Create your models here.

class Asset(models.Model):
    title_text = models.CharField(max_length=200)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    pub_date = models.DateTimeField('date published')
    main_image = models.ImageField(upload_to='asset_main_image')

    def get_absolute_url(self):
        return reverse('app:asset-detail', kwargs={'pk': self.pk})


class AssetImage(models.Model):
    asset = models.ForeignKey(Asset,related_name='images')
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    image = models.ImageField(upload_to='asset_image')
    

view.py

from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from django.core.urlresolvers import reverse_lazy

from .models import Asset
from .models import AssetImage


# Create your views here.
class IndexView(generic.ListView):
    template_name = 'asset/asset_list.html'
    context_object_name = 'latest_asset_list'

    def get_queryset(self):
        """Return the last five published asset."""
        return Asset.objects.order_by('-pub_date')[:5]

class Detail(generic.DetailView):
    model = Asset
    context_object_name = 'asset'
    template_name = 'asset/asset_detail.html'


class AssetCreate(generic.CreateView):
    model = Asset
    template_name = 'asset/asset_create.html'
    fields = ['title_text', 'main_image']

class AssetUpdate(generic.UpdateView):
    model = Asset
    template_name = 'asset/asset_form.html'
    fields = ['title_text', 'main_image', 'images']

class AssetDelete(generic.DeleteView):
    model = Asset
    success_url = reverse_lazy('app:asset-list')