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[entropy.db] EntropyRepository: make _migrateCountersTable() atomic

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Fabio Erculiani
2010-09-28 09:36:25 +02:00
parent ffd8cf0f5c
commit 4aad2397a5
1 changed files with 3 additions and 2 deletions
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5
libraries/entropy/db/__init__.py
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@@ -5200,6 +5200,7 @@ class EntropyRepository(EntropyRepositoryBase):
def _migrateCountersTable(self):
self._cursor().executescript("""
BEGIN TRANSACTION;
DROP TABLE IF EXISTS counterstemp;
CREATE TABLE counterstemp (
counter INTEGER, idpackage INTEGER, branch VARCHAR,
@@ -5208,10 +5209,10 @@ class EntropyRepository(EntropyRepositoryBase):
);
INSERT INTO counterstemp (counter, idpackage, branch)
SELECT counter, idpackage, branch FROM counters;
DROP TABLE counters;
DROP TABLE IF EXISTS counters;
ALTER TABLE counterstemp RENAME TO counters;
COMMIT;
""")
self.commitChanges()
self.__clearLiveCache("_doesTableExist")
self.__clearLiveCache("_doesColumnInTableExist")