openstack
/
oslo-incubator
Code Issues Proposed changes

SQLAlchemy error patterns improved 

SQLite has new error messages since 3.7.16.
DBDuplicateEntry is now recognized correctly.

Change-Id: I86e9673ac409b3b3e881bea7cb8b3516f320388d
Fixes: bug #1259915
This commit is contained in:
Nikita Konovalov 2013-12-11 16:35:54 +04:00
parent 15ea4ffdbc
commit c802fa66f8
1 changed files with 16 additions and 6 deletions
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22
openstack/common/db/sqlalchemy/session.py
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@ -439,6 +439,11 @@ def get_session(autocommit=True, expire_on_commit=False,
# 1 column - (IntegrityError) column c1 is not unique
# N columns - (IntegrityError) column c1, c2, ..., N are not unique
#
# sqlite since 3.7.16:
# 1 column - (IntegrityError) UNIQUE constraint failed: k1
#
# N columns - (IntegrityError) UNIQUE constraint failed: k1, k2
#
# postgres:
# 1 column - (IntegrityError) duplicate key value violates unique
# constraint "users_c1_key"
@ -451,9 +456,10 @@ def get_session(autocommit=True, expire_on_commit=False,
# N columns - (IntegrityError) (1062, "Duplicate entry 'values joined
# with -' for key 'name_of_our_constraint'")
_DUP_KEY_RE_DB = {
"sqlite": re.compile(r"^.*columns?([^)]+)(is|are)\s+not\s+unique$"),
"postgresql": re.compile(r"^.*duplicate\s+key.*\"([^\"]+)\"\s*\n.*$"),
"mysql": re.compile(r"^.*\(1062,.*'([^\']+)'\"\)$")
"sqlite": (re.compile(r"^.*columns?([^)]+)(is|are)\s+not\s+unique$"),
re.compile(r"^.*UNIQUE\s+constraint\s+failed:\s+(.+)$")),
"postgresql": (re.compile(r"^.*duplicate\s+key.*\"([^\"]+)\"\s*\n.*$"),),
"mysql": (re.compile(r"^.*\(1062,.*'([^\']+)'\"\)$"),)
}
@ -483,10 +489,14 @@ def _raise_if_duplicate_entry_error(integrity_error, engine_name):
# SQLAlchemy can differ when using unicode() and accessing .message.
# An audit across all three supported engines will be necessary to
# ensure there are no regressions.
m = _DUP_KEY_RE_DB[engine_name].match(integrity_error.message)
if not m:
for pattern in _DUP_KEY_RE_DB[engine_name]:
match = pattern.match(integrity_error.message)
if match:
break
else:
return
columns = m.group(1)
columns = match.group(1)
if engine_name == "sqlite":
columns = columns.strip().split(", ")