Django Blog Project #11: Migrating from Django 0.96 to SVN Trunk
I've been using the Django 0.96 release for this blog, but I've been thinking about switching to the SVN trunk version since it is recommended by the Django community. Django 1.0 alpha was released a couple weeks ago, so now seems like a good time to migrate.
Here are the changes I had to make. There were suprisingly few changes required-- probably because I'm not using a lot of the Django functionality. For a complete list of changes, see the Backwards-incompatible changes documentation.
Note, I am using trunk revision 8210. (2 weeks post Alpha).
Model changes
The admin definitions have been decoupled from the model definitions. Also, the prepopulate_from database field has been moved to the new admin class. See here for more information. Also maxlength was changed to max_length.
~/src/django/myblogsite/myblogapp/models.py:import re from django.db import models from django.contrib.auth.models import User from django.contrib import admin class Post(models.Model): author = models.ForeignKey(User) title = models.CharField(max_length=200) slug = models.SlugField(max_length=200,prepopulate_from=['title'],unique_for_month='date_created') date_created = models.DateTimeField(auto_now_add=True) date_modified = models.DateTimeField(auto_now=True) tags = models.CharField(max_length=200, help_text="Space separated.") body = models.TextField() body_html = models.TextField(editable=False, blank=True) lc_count = models.IntegerField(default=0, editable=False) def get_tag_list(self): return re.split(" ", self.tags) def get_absolute_url(self): return "/blog/%d/%02d/%s/" % (self.date_created.year, self.date_created.month, self.slug) def __str__(self): return self.title class Meta: ordering = ["-date_created"]class Admin: passclass PostAdmin(admin.ModelAdmin): prepopulated_fields = {'slug': ('title',)} admin.site.register(Post, PostAdmin)
Modify URLConf
See here for more information.
~/src/django/myblogsite/urls.py:from django.conf.urls.defaults import * from django.contrib import admin from django.contrib.comments.models import FreeComment from iwiwdsmi.myblogapp.views import * from iwiwdsmi.feeds import * from iwiwdsmi.views import * admin.autodiscover() feeds = { 'latest': LatestPosts, } urlpatterns = patterns( '', (r'^site_media/(?P.*)$', 'django.views.static.serve', {'document_root': '/home/sofeng/src/django/iwiwdsmi/media'}), (r'^admin/', include('django.contrib.admin.urls')),(r'^admin/(.*)', admin.site.root), (r'^feeds/(?P.*)/$', 'django.contrib.syndication.views.feed', {'feed_dict': feeds}), (r'^comments/', include('django.contrib.comments.urls.comments')), (r'^myview1/$', myview1), (r'^$', rootview), (r'^blog/$', frontpage), (r'^blog/(\d{4,4})/(\d{2,2})/([\w\-]+)/$', singlepost), (r'^blog/(\d{4,4})/$', yearview), (r'^blog/(\d{4,4})/(\d{2,2})/$', monthview), (r'^blog/tag/([\w\-]+)/$', tagview), )
Use the safe template filter
In the Django templates, Django SVN now escapes HTML by default to protect against cross-site scripting. To display my HTML blog posts, I needed to use the safe filter.
~/src/django/myblogsite/templates/listpage.html: {{ post.body|safe|truncatewords_html:"50" }}Use new admin templates
Finally, I copied over the new Django SVN templates from trunk/django/contrib/admin/templates.
