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"""
Add a keyword and a description field which are helpful for SEO optimization.
"""
from django.db import models
from django.utils.translation import ugettext_lazy as _
def register(cls, admin_cls):
cls.add_to_class('meta_keywords', models.TextField(_('meta keywords'), blank=True,
help_text=_('This will be prepended to the default keyword list.')))
cls.add_to_class('meta_description', models.TextField(_('meta description'), blank=True,
help_text=_('This will be prepended to the default description.')))
if admin_cls:
admin_cls.search_fields += ('meta_keywords', 'meta_description')
if admin_cls.fieldsets:
admin_cls.fieldsets.append((_('Search engine optimization'), {
'fields': ('meta_keywords', 'meta_description'),
'classes': ('collapse',),
}))
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