132 lines
4.8 KiB
Python
132 lines
4.8 KiB
Python
import errno
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import os
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from django.conf import settings
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from django.contrib.sites.models import Site
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from django.core.cache import cache
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from django.core.cache.utils import make_template_fragment_key
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from django.db.models.signals import post_delete, post_save
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from django.dispatch import receiver
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from .caching import finished_submission
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from .models import BlogPost, Comment, Contest, ContestSubmission, EFFECTIVE_MATH_ENGINES, Judge, Language, License, \
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MiscConfig, Organization, Problem, Profile, Submission
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def get_pdf_path(basename):
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return os.path.join(settings.DMOJ_PDF_PROBLEM_CACHE, basename)
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def unlink_if_exists(file):
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try:
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os.unlink(file)
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except OSError as e:
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if e.errno != errno.ENOENT:
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raise
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@receiver(post_save, sender=Problem)
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def problem_update(sender, instance, **kwargs):
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if hasattr(instance, '_updating_stats_only'):
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return
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cache.delete_many([
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make_template_fragment_key('submission_problem', (instance.id,)),
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make_template_fragment_key('problem_feed', (instance.id,)),
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'problem_tls:%s' % instance.id, 'problem_mls:%s' % instance.id,
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])
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cache.delete_many([make_template_fragment_key('problem_html', (instance.id, engine, lang))
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for lang, _ in settings.LANGUAGES for engine in EFFECTIVE_MATH_ENGINES])
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cache.delete_many([make_template_fragment_key('problem_authors', (instance.id, lang))
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for lang, _ in settings.LANGUAGES])
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cache.delete_many(['generated-meta-problem:%s:%d' % (lang, instance.id) for lang, _ in settings.LANGUAGES])
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for lang, _ in settings.LANGUAGES:
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unlink_if_exists(get_pdf_path('%s.%s.pdf' % (instance.code, lang)))
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@receiver(post_save, sender=Profile)
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def profile_update(sender, instance, **kwargs):
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if hasattr(instance, '_updating_stats_only'):
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return
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cache.delete_many([make_template_fragment_key('user_about', (instance.id, engine))
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for engine in EFFECTIVE_MATH_ENGINES] +
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[make_template_fragment_key('org_member_count', (org_id,))
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for org_id in instance.organizations.values_list('id', flat=True)])
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@receiver(post_save, sender=Contest)
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def contest_update(sender, instance, **kwargs):
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if hasattr(instance, '_updating_stats_only'):
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return
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cache.delete_many(['generated-meta-contest:%d' % instance.id] +
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[make_template_fragment_key('contest_html', (instance.id, engine))
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for engine in EFFECTIVE_MATH_ENGINES])
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@receiver(post_save, sender=License)
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def license_update(sender, instance, **kwargs):
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cache.delete(make_template_fragment_key('license_html', (instance.id,)))
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@receiver(post_save, sender=Language)
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def language_update(sender, instance, **kwargs):
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cache.delete_many([make_template_fragment_key('language_html', (instance.id,)),
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'lang:cn_map'])
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@receiver(post_save, sender=Judge)
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def judge_update(sender, instance, **kwargs):
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cache.delete(make_template_fragment_key('judge_html', (instance.id,)))
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@receiver(post_save, sender=Comment)
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def comment_update(sender, instance, **kwargs):
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cache.delete('comment_feed:%d' % instance.id)
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@receiver(post_save, sender=BlogPost)
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def post_update(sender, instance, **kwargs):
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cache.delete_many([
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make_template_fragment_key('post_summary', (instance.id,)),
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'blog_slug:%d' % instance.id,
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'blog_feed:%d' % instance.id,
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])
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cache.delete_many([make_template_fragment_key('post_content', (instance.id, engine))
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for engine in EFFECTIVE_MATH_ENGINES])
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@receiver(post_delete, sender=Submission)
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def submission_delete(sender, instance, **kwargs):
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finished_submission(instance)
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instance.user.calculate_points()
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@receiver(post_delete, sender=ContestSubmission)
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def contest_submission_delete(sender, instance, **kwargs):
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participation = instance.participation
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participation.recompute_results()
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@receiver(post_save, sender=Organization)
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def organization_update(sender, instance, **kwargs):
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cache.delete_many([make_template_fragment_key('organization_html', (instance.id, engine))
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for engine in EFFECTIVE_MATH_ENGINES])
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_misc_config_i18n = [code for code, _ in settings.LANGUAGES]
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_misc_config_i18n.append('')
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@receiver(post_save, sender=MiscConfig)
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def misc_config_update(sender, instance, **kwargs):
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cache.delete_many(['misc_config:%s:%s:%s' % (domain, lang, instance.key.split('.')[0])
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for lang in _misc_config_i18n
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for domain in Site.objects.values_list('domain', flat=True)])
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@receiver(post_save, sender=ContestSubmission)
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def contest_submission_update(sender, instance, **kwargs):
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Submission.objects.filter(id=instance.submission_id).update(contest_object_id=instance.participation.contest_id)
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