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Bug Fix: Issue #2 #3

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Bug Fix: Issue #2 #3

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6 changes: 3 additions & 3 deletions sql_caching/middleware.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,11 +8,11 @@
'''
from threading import local
import itertools
from django.utils.deprecation import MiddlewareMixin
from django.db.models.sql.compiler import SQLCompiler
from django.db.models.sql.datastructures import EmptyResultSet
from django.db.models.sql.constants import GET_ITERATOR_CHUNK_SIZE


_thread_locals = local()


Expand All @@ -30,7 +30,7 @@ def execute_sql_cache(self, *args, **kwargs):
if hasattr(_thread_locals, 'query_cache'):

sql = get_sql(self) # ('SELECT * FROM ...', (50)) <= sql string, args tuple
if sql[0][:6].upper() == 'SELECT':
if sql[0].upper().lstrip().startswith('SELECT'):

# uses the tuple of sql + args as the cache key
if sql in _thread_locals.query_cache:
Expand All @@ -57,7 +57,7 @@ def execute_sql_cache(self, *args, **kwargs):
return self._execute_sql(*args, **kwargs)


class QueryCacheMiddleware(object):
class QueryCacheMiddleware(MiddlewareMixin):
def process_request(self, request):
_thread_locals.query_cache = {}

Expand Down