Commit b348f5d9 by Piotr Mitros

Cache toolbox disabled

parent 98f5a79d
......@@ -14,12 +14,12 @@ ASSUMPTIONS: modules have unique IDs, even across different module_types
"""
from django.db import models
from django.db.models.signals import post_save, post_delete
from django.core.cache import cache
#from django.core.cache import cache
from django.contrib.auth.models import User
from cache_toolbox import cache_model, cache_relation
#from cache_toolbox import cache_model, cache_relation
CACHE_TIMEOUT = 60 * 60 * 4 # Set the cache timeout to be four hours
#CACHE_TIMEOUT = 60 * 60 * 4 # Set the cache timeout to be four hours
class StudentModule(models.Model):
# For a homework problem, contains a JSON
......@@ -58,35 +58,35 @@ class StudentModule(models.Model):
def __unicode__(self):
return self.module_type+'/'+self.student.username+"/"+self.module_id+'/'+str(self.state)[:20]
@classmethod
def get_with_caching(cls, student, module_id):
k = cls.key_for(student, module_id)
student_module = cache.get(k)
if student_module is None:
student_module = StudentModule.objects.filter(student=student,
module_id=module_id)[0]
# It's possible it really doesn't exist...
if student_module is not None:
cache.set(k, student_module, CACHE_TIMEOUT)
return student_module
# @classmethod
# def get_with_caching(cls, student, module_id):
# k = cls.key_for(student, module_id)
# student_module = cache.get(k)
# if student_module is None:
# student_module = StudentModule.objects.filter(student=student,
# module_id=module_id)[0]
# # It's possible it really doesn't exist...
# if student_module is not None:
# cache.set(k, student_module, CACHE_TIMEOUT)
# return student_module
@classmethod
def key_for(cls, student, module_id):
return "StudentModule-student_id:{0};module_id:{1}".format(student.id, module_id)
def clear_cache_by_student_and_module_id(sender, instance, *args, **kwargs):
k = sender.key_for(instance.student, instance.module_id)
cache.delete(k)
# def clear_cache_by_student_and_module_id(sender, instance, *args, **kwargs):
# k = sender.key_for(instance.student, instance.module_id)
# cache.delete(k)
def update_cache_by_student_and_module_id(sender, instance, *args, **kwargs):
k = sender.key_for(instance.student, instance.module_id)
cache.set(k, instance, CACHE_TIMEOUT)
# def update_cache_by_student_and_module_id(sender, instance, *args, **kwargs):
# k = sender.key_for(instance.student, instance.module_id)
# cache.set(k, instance, CACHE_TIMEOUT)
post_save.connect(update_cache_by_student_and_module_id, sender=StudentModule, weak=False)
post_delete.connect(clear_cache_by_student_and_module_id, sender=StudentModule, weak=False)
#post_save.connect(update_cache_by_student_and_module_id, sender=StudentModule, weak=False)
#post_delete.connect(clear_cache_by_student_and_module_id, sender=StudentModule, weak=False)
cache_model(StudentModule)
#cache_model(StudentModule)
......@@ -13,7 +13,7 @@ import uuid
from django.db import models
from django.contrib.auth.models import User
from cache_toolbox import cache_model, cache_relation
#from cache_toolbox import cache_model, cache_relation
class UserProfile(models.Model):
class Meta:
......
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