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-rw-r--r--debug_toolbar/utils/tracking/db.py44
1 files changed, 30 insertions, 14 deletions
diff --git a/debug_toolbar/utils/tracking/db.py b/debug_toolbar/utils/tracking/db.py
index 4d87090..d649984 100644
--- a/debug_toolbar/utils/tracking/db.py
+++ b/debug_toolbar/utils/tracking/db.py
@@ -5,13 +5,22 @@ from threading import local
from django.conf import settings
from django.template import Node
-from django.utils import simplejson
from django.utils.encoding import force_unicode, smart_str
-from django.utils.hashcompat import sha_constructor
from debug_toolbar.utils import ms_from_timedelta, tidy_stacktrace, \
get_template_info, get_stack
from debug_toolbar.utils.compat.db import connections
+
+try:
+ import json
+except ImportError: # python < 2.6
+ from django.utils import simplejson as json
+
+try:
+ from hashlib import sha1
+except ImportError: # python < 2.5
+ from django.utils.hashcompat import sha_constructor as sha1
+
# TODO:This should be set in the toolbar loader as a default and panels should
# get a copy of the toolbar object with access to its config dictionary
SQL_WARNING_THRESHOLD = getattr(settings, 'DEBUG_TOOLBAR_CONFIG', {}) \
@@ -82,8 +91,13 @@ class NormalCursorWrapper(object):
for key, value in params.iteritems())
return map(self._quote_expr, params)
+ def _decode(self, param):
+ try:
+ return force_unicode(param, strings_only=True)
+ except UnicodeDecodeError:
+ return '(encoded string)'
+
def execute(self, sql, params=()):
- __traceback_hide__ = True
start = datetime.now()
try:
return self.cursor.execute(sql, params)
@@ -98,10 +112,8 @@ class NormalCursorWrapper(object):
stacktrace = []
_params = ''
try:
- _params = simplejson.dumps(
- [force_unicode(x, strings_only=True) for x in params]
- )
- except TypeError:
+ _params = json.dumps(map(self._decode, params))
+ except Exception:
pass # object not JSON serializable
template_info = None
@@ -119,7 +131,7 @@ class NormalCursorWrapper(object):
del cur_frame
alias = getattr(self.db, 'alias', 'default')
- conn = connections[alias].connection
+ conn = self.db.connection
# HACK: avoid imports
if conn:
engine = conn.__class__.__module__.split('.', 1)[0]
@@ -129,14 +141,11 @@ class NormalCursorWrapper(object):
params = {
'engine': engine,
'alias': alias,
- 'sql': self.db.ops.last_executed_query(self.cursor, sql,
- self._quote_params(params)),
+ 'sql': self.db.ops.last_executed_query(
+ self.cursor, sql, self._quote_params(params)),
'duration': duration,
'raw_sql': sql,
'params': _params,
- 'hash': sha_constructor(settings.SECRET_KEY \
- + smart_str(sql) \
- + _params).hexdigest(),
'stacktrace': stacktrace,
'start_time': start,
'stop_time': stop,
@@ -146,10 +155,17 @@ class NormalCursorWrapper(object):
}
if engine == 'psycopg2':
+ # If an erroneous query was ran on the connection, it might
+ # be in a state where checking isolation_level raises an
+ # exception.
+ try:
+ iso_level = conn.isolation_level
+ except conn.InternalError:
+ iso_level = 'unknown'
params.update({
'trans_id': self.logger.get_transaction_id(alias),
'trans_status': conn.get_transaction_status(),
- 'iso_level': conn.isolation_level,
+ 'iso_level': iso_level,
'encoding': conn.encoding,
})