Framework approach to building content management systems. Wednesday, February 20, 13

Transcription

1 Framework approach to building content management systems

2 Andrew

3 Monolithic CMSs Quick initial install Lots of features Plugins/extensions 3rd party themes

4 That that starts sweet ends bitter, and that which starts bitter ends sweet. Johnny Quid, RocknRolla

5 Monolithic CMSs cons Customization is hard Users use 20% of features, other 80% confuse them Plugin system might be insufficient for complex functionality

6 Framework approach Easy to customize, since you built it You get only features your users need Ability to integrate complex functionality

7 FeinCMS Hierarchical page system Content types 3rd party apps integration

8 Page module

9 Page module from django.utils.translation import ugettext_lazy as _ from feincms.module.page.models import Page Page.register_templates({ 'title': _('Standard template'), 'path': 'page.html', 'regions': ( ('main', _('Main content area')), ('sidebar', _('Sidebar'), 'inherited'), ), }) Page.register_templates({ 'title': _('Homepage template'), 'path': 'homepage.html', 'regions': ( ('main', _('Main content area')), ), })

10 Content types from feincms.module.page.models import Page from feincms.content.richtext.models import RichTextContent from feincms.content.video.models import VideoContent from feincms.content.raw.models import RawContent from photologue_extra.models import PhotoContent, GalleryContent Page.register_extensions( 'navigation', 'titles', 'translations', 'seo' ) Page.create_content_type(RichTextContent, cleanse=false) Page.create_content_type(VideoContent) Page.create_content_type(PhotoContent) Page.create_content_type(GalleryContent, regions=('main',)) Page.create_content_type(RawContent)

11 Custom content type class TextileContent(models.Model): content = models.textfield() class Meta: abstract = True def render(self, **kwargs): return textile(self.content)

12 Custom modules

13 Custom modules from feincms.admin import item_editor from feincms.models import Base from feincms.content.richtext.models import RichTextContent from feincms.content.video.models import VideoContent from photologue_extra.models import PhotoContent, GalleryContent class def register_extension(cls, register_fn): register_fn(cls, PostAdmin) class PostAdmin(item_editor.ItemEditor):... Post.register_regions( ('main', _('Main content area')), ) RichTextContent = Post.create_content_type(RichTextContent) VideoContent = Post.create_content_type(VideoContent) Post.create_content_type(PhotoContent) Post.create_content_type(GalleryContent, regions=('main',))

14 Custom views TEMPLATE_CONTEXT_PROCESSORS = ( "django.contrib.auth.context_processors.auth", "django.core.context_processors.debug", "django.core.context_processors.i18n", "django.core.context_processors.media", "django.core.context_processors.static", "django.core.context_processors.tz", "django.contrib.messages.context_processors.messages", ) "feincms.context_processors.add_page_if_missing",

15 Custom apps Register using ApplicationContent from feincms.content.application.models import ApplicationContent from feincms.module.page.models import Page Page.create_content_type(ApplicationContent, APPLICATIONS=( ('news.urls', 'News application'), ))

16 Custom apps views.py from django.shortcuts import get_object_or_404 from news.models import Entry def entry_list(request): # TODO add pagination here return 'news/entry_list.html', {'object_list': Entry.objects.all()} def entry_detail(request, slug): return 'news/entry_detail', {'object': get_object_or_404(entry, slug=slug)} urls.py from django.conf.urls.defaults import patterns, include, url urlpatterns = patterns('news.views', url(r'^$', 'entry_list', name='entry_list'), url(r'^(?p<slug>[^/]+)/$', 'entry_detail', name='entry_detail'), )

17 Custom apps In your templates {% extends feincms_page.template.path default:"base.html" %} {% block... %} {# more content snipped #} Reverse urls from feincms.content.application.models import app_reverse app_reverse('mymodel-detail', 'myapp.urls', args=...) {% load applicationcontent_tags %} {% app_reverse mymodel_detail myapp.urls arg1 arg2 as url %}

18 Caching Nginx microcaching* Template fragment caching Johnny-cache *

19 Johnny-cache fix from feincms.module.page.models import Page, PageAdmin class PageAdminNew(PageAdmin): def _refresh_changelist_caches(self): from johnny.cache import invalidate invalidate(page) from django.contrib import admin admin.site.unregister(page) admin.site.register(page, PageAdminNew)

20 Want even better performance? Run it on PyPy

21 Migrating data from Wordpress django-wpimport* *

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