示例#1
0
    def _render(self, context):
        instance = self.instance.resolve(context)
        field = self.field.resolve(context)
        geometry = self.geometry.resolve(context)
        options = {}
        for key, expr in self.options:
            noresolve = {u'True': True, u'False': False, u'None': None}
            value = noresolve.get(unicode(expr), expr.resolve(context))
            if key == 'options':
                options.update(value)
            else:
                options[key] = value
        if settings.THUMBNAIL_DUMMY:
            thumbnail_url = DummyImageFile(geometry).url
        elif getattr(instance, field):
            thumbnail_url = THUMBNAIL_OPTIONS.build_url(instance, field, geometry, **options)
        elif not self.direct_usage:
            return self.nodelist_empty.render(context)

        if self.direct_usage:
            return thumbnail_url
        else:
            context.push()
            context[self.as_var] = thumbnail_url
            output = self.nodelist_file.render(context)
            context.pop()
            return output
示例#2
0
def spawn_pre_cache_signal(sender, instance, created, **kwargs):
    configs = THUMBNAIL_OPTIONS.get(sender, {})
    for config in configs:
        if config and config.precache:
            precache_sorl.send(sender=sender, instance=instance,
                model_config=config)