01a9ad2369
This introduces a mechanism to control the time-to-live for an unlocked course asset, which will allow browsers and intermediate proxies/caches to cache these course assets, determinstically. Locked assets, with their nature of requiring authorization, are not eligible for caching.
30 lines
802 B
Python
30 lines
802 B
Python
"""
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Models for contentserver
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"""
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from django.db.models.fields import PositiveIntegerField
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from config_models.models import ConfigurationModel
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class CourseAssetCacheTtlConfig(ConfigurationModel):
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"""Configuration for the TTL of course assets."""
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class Meta(object):
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app_label = 'contentserver'
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cache_ttl = PositiveIntegerField(
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default=0,
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help_text="The time, in seconds, to report that a course asset is allowed to be cached for."
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)
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@classmethod
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def get_cache_ttl(cls):
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"""Gets the cache TTL for course assets, if present"""
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return cls.current().cache_ttl
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def __repr__(self):
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return '<CourseAssetCacheTtlConfig(cache_ttl={})>'.format(self.get_cache_ttl())
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def __unicode__(self):
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return unicode(repr(self))
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