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Fixed #19154 - Noted commit_manually requires commit/rollback for reads 

Thanks als for the report.
This commit is contained in:
Tim Graham 2012-11-06 08:53:10 -05:00
parent 79dd751b0b
commit 620e0bba49
1 changed files with 6 additions and 2 deletions
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8
docs/topics/db/transactions.txt
View File

@ -161,8 +161,12 @@ managers, too.
transactions. It tells Django you'll be managing the transaction on your transactions. It tells Django you'll be managing the transaction on your
own. own.
If your view changes data and doesn't ``commit()`` or ``rollback()``, Whether you are writing or simply reading from the database, you must
Django will raise a ``TransactionManagementError`` exception. ``commit()`` or ``rollback()`` explicitly or Django will raise a
:exc:`TransactionManagementError` exception. This is required when reading
from the database because ``SELECT`` statements may call functions which
modify tables, and thus it is impossible to know if any data has been
modified.
Manual transaction management looks like this:: Manual transaction management looks like this::