django-parler - DjangoCon EU 2014 lightning talk

Extended version of my previous django-parler presentation. Explain why django-modeltranslation or django-hvad were nog used, and what complex inheritance I'd faced. Now features such as:

* Python 3 support
* Prefetching translations
* Caching
* High-level features such as `{% get_translated_url %}`.
* Admin inlines

Easily translate cheese omelet into omelette du fromage.

Transcript

1. django-parler
   Easily translate cheese omelet into omelette du fromage.
   Diederik van der Boor Django Meetup 14-05-2014
   

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2. Simple Django model translations
   without nasty hacks
   with nice admin integration.
   

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3. Got hopeful
   Making a CMS multilingual:
   Well, let's use something existing...
   

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4. django-modeltranslation :-(
   

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5. django-hvad :-(
   Very nice admin, awesome API – however:
   Overrides just about all ORM methods!
   Lots of metaclass magic
   Mixing translated with untranslated objects = hard
   Can't be combined with other apps
   (mptt, polymorphic, shop)
   Doesn't call super() often
   

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6. django-polymorphic-tree
   Yes, we do crazy things...
   

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7. django-fluent CMS
   ...when they make sense
   

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8. 1 row for each language
   

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9. Let's just do this..!
   

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10. And tried more hacking!
    

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11. Package that!
    So we:
    – Hacked something directly in the CMS app
    – K.I.S.S
    – Manually created translated fields table
    – Manually assigned descriptors
    – Hey that works!!
    

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12. Model API
    

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13. Usage
    

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14. Features
    Python 3
    qs.translated(''en'', name=''foo'')
    qs.prefetch_related(''translations'')
    {% get_translated_url ''fr'' page as url %}
    caching individual objects
    admin tabs + inlines
    

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18. Thanks to caching...
    

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21. @vdboor @edoburu
    pip install 'django-parler>=1.0b2'
    https://github.com/edoburu/django-parler
    http://django-fluent.org
    

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