Mercurial > p > roundup > code
view roundup/cgi/exceptions.py @ 6610:db3f0ba75b4a
Change checkpoint_data and restore_connection_on_error to subtransaction
checkpoint_data and restore_connection_on_error used to commit() and
rollback() the db connection. This causes additional I/O and load.
Changed them to use 'SAVEPOINT name' and 'ROLLBACK TO name' to get a
faster method for handling errors within a tranaction.
One thing to note is that postgresql (unlike SQL std) doesn't
overwrite an older savepoint with he same name. It keeps all
savepoints but only rolls back to the newest one with a given name.
This could be a resource issue. I left a commented out release
statement in case somebody runs into an issue due to too many
savepoints. I expect it to slow down the import but....
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Sat, 29 Jan 2022 11:29:36 -0500 |
| parents | 91ab3e0ffcd0 |
| children | a1cffeef5f87 |
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"""Exceptions for use in Roundup's web interface. """ __docformat__ = 'restructuredtext' from roundup.exceptions import LoginError, Unauthorised # noqa: F401 from roundup.anypy.html import html_escape from roundup.exceptions import RoundupException class RoundupCGIException(RoundupException): pass class HTTPException(RoundupCGIException): pass class Redirect(HTTPException): pass class NotFound(HTTPException): pass class NotModified(HTTPException): pass class PreconditionFailed(HTTPException): pass class DetectorError(RoundupException): """Raised when a detector throws an exception. Contains details of the exception.""" def __init__(self, subject, html, txt): self.subject = subject self.html = html self.txt = txt BaseException.__init__(self, subject + ' ' + txt) class FormError(ValueError): """An 'expected' exception occurred during form parsing. That is, something we know can go wrong, and don't want to alarm the user with. We trap this at the user interface level and feed back a nice error to the user. """ pass class IndexerQueryError(RoundupException): """Raised to handle errors from FTS searches due to query syntax errors. """ pass class SendFile(RoundupException): """Send a file from the database.""" class SendStaticFile(RoundupException): """Send a static file from the instance html directory.""" class SeriousError(RoundupException): """Raised when we can't reasonably display an error message on a templated page. The exception value will be displayed in the error page, HTML escaped. """ def __str__(self): return """ <html><head><title>Roundup issue tracker: An error has occurred</title> <link rel="stylesheet" type="text/css" href="@@file/style.css"> </head> <body class="body" marginwidth="0" marginheight="0"> <p class="error-message">%s</p> </body></html> """ % html_escape(self.args[0]) # vim: set filetype=python sts=4 sw=4 et si :
