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101 lines
3.6 KiB
101 lines
3.6 KiB
# Erik Stein <code@classlibrary.net>, 2017 |
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from functools import reduce, partial |
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from django.conf import settings |
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from django.db import models |
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from django.utils.html import strip_tags |
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from django.utils.text import normalize_newlines |
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from django.utils.translation import ugettext_lazy as _ |
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from shared.utils.fields import AutoSlugField |
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from shared.utils.functional import firstof |
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from shared.utils.text import slimdown |
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USE_TRANSLATABLE_FIELDS = getattr(settings, 'CONTENT_USE_TRANSLATABLE_FIELDS', True) |
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# TODO Implement translatable AutoSlugField: USE_TRANSLATABLE_SLUG_FIELDS = getattr(settings, 'CONTENT_USE_TRANSLATABLE_SLUG_FIELDS', True) |
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if USE_TRANSLATABLE_FIELDS: |
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from shared.multilingual.utils.fields import TranslatableCharField, TranslatableTextField |
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class PageTitlesMixin(models.Model): |
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""" |
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A model mixin containg title and slug field for models serving as website |
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pages with an URL. |
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""" |
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# FIXME signals are not sent from abstract models, therefore AutoSlugField doesn't work |
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if USE_TRANSLATABLE_FIELDS: |
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short_title = TranslatableCharField(_("Name"), max_length=50) |
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title = TranslatableTextField(_("Titel (Langform)"), null=True, blank=True, max_length=300) |
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window_title = TranslatableCharField(_("Fenster-/Suchmaschinentitel"), null=True, blank=True, max_length=300) |
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# FIXME populate_from should use settings.LANGUAGE |
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slug = AutoSlugField(_("URL-Name"), max_length=200, populate_from='short_title_de', unique_slug=True, blank=True) |
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else: |
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short_title = models.CharField(_("Name"), max_length=50) |
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title = models.TextField(_("Titel (Langform)"), null=True, blank=True, max_length=300) |
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window_title = models.CharField(_("Fenster-/Suchmaschinentitel"), null=True, blank=True, max_length=300) |
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slug = AutoSlugField(_("URL-Name"), max_length=200, populate_from='short_title', unique_slug=True, blank=True) |
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class Meta: |
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abstract = True |
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def __str__(self): |
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return strip_tags(slimdown(self.short_title)) |
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def get_title(self): |
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return slimdown(firstof( |
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self.title, |
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self.short_title |
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)) |
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def get_window_title(self): |
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return strip_tags(slimdown( |
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firstof( |
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self.window_title, |
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self.short_title, |
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self.get_first_title_line(), |
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) |
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)) |
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def get_first_title_line(self): |
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""" |
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First line of title field. |
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""" |
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return slimdown( |
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normalize_newlines(self.get_title()).partition("\n")[0] |
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) |
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def get_subtitle_lines(self): |
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""" |
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All but first line of the long title field. |
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""" |
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return slimdown( |
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normalize_newlines(self.title).partition("\n")[2] |
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) |
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# TODO Move to shared.multilingual or shared.utils.translation |
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def language_variations_for_field(language_codes, fields): |
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# TODO Check if field is translatable |
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return ["{}_{}".format(fields, s) for s in language_codes] |
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# TODO Move to shared.multilingual or shared.utils.translation |
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def language_variations_for_fields(fields, language_codes=None): |
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if not language_codes: |
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language_codes = [t[0] for t in settings.LANGUAGES] |
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f = partial(language_variations_for_field, language_codes) |
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return reduce(lambda x, y: x + y, map(f, fields)) |
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class PageTitleAdminMixin(object): |
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search_fields = ['short_title', 'title', 'window_title'] |
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if USE_TRANSLATABLE_FIELDS: |
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search_fields = language_variations_for_fields(search_fields) |
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list_display = ['short_title', 'slug'] |
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prepopulated_fields = { |
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'slug': ('short_title_en',), |
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}
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