Framework approach to building content management systems

Wednesday, February 20, 13

Andrew Kurinnyi@zen4ever

https://github.com/zen4ever

Wednesday, February 20, 13

Monolithic CMSs• Quick initial install

• Lots of features

• Plugins/extensions

• 3rd party themes

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That that starts sweetends bitter,

and that which starts bitterends sweet.

Johnny Quid, RocknRolla

Wednesday, February 20, 13

Monolithic CMSs cons

• Customization is hard

• Users use 20% of features, other 80% confuse them

• Plugin system might be insufficient for complex functionality

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Framework approach• Easy to customize,

since you built it• You get only features

your users need• Ability to integrate

complex functionalityWednesday, February 20, 13

FeinCMS• Hierarchical page

system• Content types• 3rd party apps

integrationWednesday, February 20, 13

Page module

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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')), ), })

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Content types from feincms.module.page.models import Pagefrom feincms.content.richtext.models import RichTextContentfrom feincms.content.video.models import VideoContentfrom 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)

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Custom content type

class TextileContent(models.Model): content = models.TextField()

class Meta: abstract = True

def render(self, **kwargs): return textile(self.content)

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Custom modules

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Custom modulesfrom feincms.admin import item_editorfrom feincms.models import Basefrom feincms.content.richtext.models import RichTextContentfrom feincms.content.video.models import VideoContent

from photologue_extra.models import PhotoContent, GalleryContent

class Post(Base): ...

@classmethod 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',))

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Custom viewsTEMPLATE_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",)

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Custom apps

from feincms.content.application.models import ApplicationContentfrom feincms.module.page.models import Page

Page.create_content_type(ApplicationContent, APPLICATIONS=( ('news.urls', 'News application'),))

Register using ApplicationContent

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Custom appsfrom django.shortcuts import get_object_or_404from 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)}

views.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'),)

urls.py

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Custom appsIn your templates

{% extends feincms_page.template.path|default:"base.html" %}

{% block ... %}{# more content snipped #}

Reverse urls

from feincms.content.application.models import app_reverseapp_reverse('mymodel-detail', 'myapp.urls', args=...)

{% load applicationcontent_tags %}

{% app_reverse “mymodel_detail” “myapp.urls” arg1 arg2 as url %}

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Caching• Nginx microcaching*• Template fragment

caching• Johnny-cache*http://fennb.com/microcaching-speed-your-app-up-250x-with-no-n

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Johnny-cache fixfrom 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)

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Want even better performance?

Run it on PyPy

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Migrating data from Wordpress

django-wpimport*

*https://github.com/zen4ever/django-wpimportWednesday, February 20, 13

Thanks!@zen4ever

https://github.com/zen4ever

Wednesday, February 20, 13