49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
from django.core.urlresolvers import reverse
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from openslides.utils.utils import int_or_none
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class SlideMixin(object):
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"""
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A Mixin for a Django-Model, for making the model a slide.
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"""
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slide_callback_name = None
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"""
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Name of the callback to render the model as slide.
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"""
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def get_absolute_url(self, link='projector'):
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"""
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Return the url to activate the slide, if link == 'projector'.
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"""
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if link in ('projector', 'projector_preview'):
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url_name = {'projector': 'projector_activate_slide',
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'projector_preview': 'projector_preview'}[link]
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value = '%s?pk=%d' % (
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reverse(url_name,
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args=[self.slide_callback_name]),
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self.pk)
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else:
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value = super(SlideMixin, self).get_absolute_url(link)
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return value
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def is_active_slide(self):
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"""
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Return True, if the the slide is the active slide.
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"""
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from openslides.projector.api import get_active_slide
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active_slide = get_active_slide()
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slide_pk = int_or_none(active_slide.get('pk', None))
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return (active_slide['callback'] == self.slide_callback_name and
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self.pk == slide_pk)
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def get_slide_context(self, **context):
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"""
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Returns the context for the template which renders the slide.
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"""
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slide_name = self._meta.object_name.lower()
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context.update({'slide': self,
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slide_name: self})
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return context
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