X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/891b9e3b7ecaedc9ac32bc941400a267c77482a0..0bd2c341a8b55f817c2e193a6c4658d52ef95961:/apps/modeltranslation/fields.py diff --git a/apps/modeltranslation/fields.py b/apps/modeltranslation/fields.py deleted file mode 100644 index 5498d6b1d..000000000 --- a/apps/modeltranslation/fields.py +++ /dev/null @@ -1,110 +0,0 @@ -# -*- coding: utf-8 -*- -from django.conf import settings -from django.db.models.fields import Field, CharField - -from modeltranslation.utils import get_language, build_localized_fieldname - - -class TranslationField(Field): - """ - The translation field functions as a proxy to the original field which is - wrapped. - - For every field defined in the model's ``TranslationOptions`` localized - versions of that field are added to the model depending on the languages - given in ``settings.LANGUAGES``. - - If for example there is a model ``News`` with a field ``title`` which is - registered for translation and the ``settings.LANGUAGES`` contains the - ``de`` and ``en`` languages, the fields ``title_de`` and ``title_en`` will - be added to the model class. These fields are realized using this - descriptor. - - The translation field needs to know which language it contains therefore - that needs to be specified when the field is created. - """ - def __init__(self, translated_field, language, *args, **kwargs): - # Store the originally wrapped field for later - self.translated_field = translated_field - self.language = language - - # Update the dict of this field with the content of the original one - # This might be a bit radical?! Seems to work though... - self.__dict__.update(translated_field.__dict__) - - # Translation are always optional (for now - maybe add some parameters - # to the translation options for configuring this) - self.null = True - self.blank = True - - # Adjust the name of this field to reflect the language - self.attname = build_localized_fieldname(translated_field.name, - language) - self.name = self.attname - - # Copy the verbose name and append a language suffix (will e.g. in the - # admin). This might be a proxy function so we have to check that here. - if hasattr(translated_field.verbose_name, '_proxy____unicode_cast'): - verbose_name = \ - translated_field.verbose_name._proxy____unicode_cast() - else: - verbose_name = translated_field.verbose_name - self.verbose_name = '%s [%s]' % (verbose_name, language) - - def pre_save(self, model_instance, add): - val = super(TranslationField, self).pre_save(model_instance, add) - if get_language() == self.language and not add: - # Rule is: 3. Assigning a value to a translation field of the - # default language also updates the original field - model_instance.__dict__[self.translated_field.name] = val - return val - - def get_internal_type(self): - return self.translated_field.get_internal_type() - - #def contribute_to_class(self, cls, name): - #super(TranslationField, self).contribute_to_class(cls, name) - ##setattr(cls, 'get_%s_display' % self.name, - ##curry(cls._get_FIELD_display, field=self)) - - def south_field_triple(self): - """Returns a suitable description of this field for South.""" - # We'll just introspect the _actual_ field. - from south.modelsinspector import introspector - field_class = '%s.%s' % (self.translated_field.__class__.__module__, - self.translated_field.__class__.__name__) - args, kwargs = introspector(self.translated_field) - # That's our definition! - return (field_class, args, kwargs) - - def formfield(self, *args, **kwargs): - """Preserves the widget of the translated field.""" - trans_formfield = self.translated_field.formfield(*args, **kwargs) - defaults = {'widget': type(trans_formfield.widget)} - defaults.update(kwargs) - return super(TranslationField, self).formfield(*args, **defaults) - - -#class CurrentLanguageField(CharField): - #def __init__(self, **kwargs): - #super(CurrentLanguageField, self).__init__(null=True, max_length=5, - #**kwargs) - - #def contribute_to_class(self, cls, name): - #super(CurrentLanguageField, self).contribute_to_class(cls, name) - #registry = CurrentLanguageFieldRegistry() - #registry.add_field(cls, self) - - -#class CurrentLanguageFieldRegistry(object): - #_registry = {} - - #def add_field(self, model, field): - #reg = self.__class__._registry.setdefault(model, []) - #reg.append(field) - - #def get_fields(self, model): - #return self.__class__._registry.get(model, []) - - #def __contains__(self, model): - #return model in self.__class__._registry