def fitX(func, target, *funcArgs, **funcKwargs):
"""
e.g. fitX(func=kt2e0, target=77.338912, ax=ax, bx=bx) == 5.
"""
def curryFuncWithTarget(func, target, *funcArgs, **funcKwargs):
argsP = funcArgs
kwargsP = funcKwargs
def f(x):
return (func(x, *argsP, **kwargsP) - target)**2
return f
cf = curryFuncWithTarget(func, target, *funcArgs, **funcKwargs)
(out, infodict, ier, mesg) = [None] * 4
try:
(out, infodict, ier,
mesg) = scipy.optimize.fsolve(func=cf,
x0=((2 * S.rand()) - 0.5),
full_output=1,
xtol=1.0e-04)
if ier == 1:
lcfitlogger.debug("Successful fsolve\n")
else:
lcfitlogger.warning("Problem with fsolve. ier = %s, mesg = \"%s.\"\n %s\n" % \
(ier, mesg.replace('\n', ' '), infodict))
except Exception, e:
lcfitlogger.error(
"Exception with fsolve: \"%s\". Catching and ignoring..." % e)
def __call__(self, session=None, form=None):
""" Deal with registration data"""
data = f2d(form)
# Log
lcfitlogger.debug('LcRegistrationProcess: __call__')
## Clean and check data, display error and return if necessary.
for k in [
'USERNAME', 'PASSWORD', 'EMAIL', 'FULLNAME', 'REASONS',
'HOWFIND', 'AFFILIATION'
]:
if (not data.has_key(k)) or LCFIT_EMPTY_ALL_RE.match(
data[k]): # Error
err_mess = 'Empty strings or other bad data in form: "%s".<br>Please use the back button and correct.' % (
k)
sl = [{
'TITLE': 'Registration Error',
'LC_ERROR_MESSAGE': err_mess
}]
formTemplate = Template.Template(
file=self.errorTemplate,
searchList=sl,
compilerSettings={'prioritizeSearchListOverSelf': True})
sys.stdout.write("Content-type: text/html")
sys.stdout.write(str(formTemplate))
sys.stdout.flush()
return (0)
if k in ('USERNAME', 'PASSWORD'):
data[k] = re.sub('\s*', '', data[k])
data[k] = data[k].strip()
data[k] = data[k].replace("'", "")
## Insert info into db (email will be sent by daily sweeper)
try:
self.lcdb.insertRegRequest(data)
except LcException, e:
lcfitlogger.error('Bad Registration request: %s.' %
pprint.pformat(e))
if re.match('.*pending.*', str(e)):
sys.stdout.write("Status: 303\nLocation: %s\n\n" %
LCFIT_PREV_PEND_ERROR_PAGE)
sys.stdout.flush()
elif re.match('.*in-use.*', str(e)):
sys.stdout.write("Status: 303\nLocation: %s\n\n" %
LCFIT_PREV_REG_ERROR_PAGE)
sys.stdout.flush()
else:
raise
def try_execute(dbcon, sql, data=None, fetch_N='all', tries_N=3): """ Do the execute, trying to reconnect a few times. Pass a db connection back, either the old one or a new reconnected ref.""" ## TODO incorporate lists of SQL statements and data in order to ## transactionalize them. ... hm ... But what if you want ## intermediate data ... hmm. Maybe a reconnecting cursor is what ## I want? So then I don't have a bunch of duplicated connection ## lines. But what happens if we disconnect or have to roll ## back.... Hmm... I am leaving this as-is, because it should be ## fine for the little application that is LCFIT, but the ## interface of multiple SQL statements to the DB, handling ## commits and rollbacks, seems to be a thing I haven't completely ## figured out. Perhaps the best approach is to have complex ## updates/ inserts/ deletions as a server side function, with ## pure non-transactionally complex selects left explicit. tries_comp = 0 while tries_N >= 0: try: curs = dbcon.cursor() #raise Exception(sql + ' xxx ' + repr(data)) curs.execute(sql, data) if fetch_N == 'all': res = curs.fetchall() elif fetch_N == 'one': res = curs.fetchone() elif fetch_N == 'none': res = None else: raise Exception, "Bad value for fetch_N: %s" % fetch_N curs.close() dbcon.commit() return (res,dbcon) except (psycopg2.OperationalError, psycopg2.InterfaceError, psycopg2.InternalError), e: lcfitlogger.error( "Error trying to execute query, reconnecting: \"%s\", \"%s\"." % (sql, e)) tries_N -= 1 time.sleep(2**tries_comp) tries_comp += 1 try: dbcon = psycopg2.connect(dbcon.dsn) except Exception, e: raise LcException, "Exception trying to connect: \"%s\"." % str(e) lcfitlogger.warning( "Successfully reconnected, re-executed cursor.")
def fitX(func, target, *funcArgs, **funcKwargs):
"""
e.g. fitX(func=kt2e0, target=77.338912, ax=ax, bx=bx) == 5.
"""
def curryFuncWithTarget(func, target, *funcArgs, **funcKwargs):
argsP = funcArgs
kwargsP = funcKwargs
def f(x):
return (func(x, *argsP, **kwargsP) - target)**2
return f
cf = curryFuncWithTarget(func, target, *funcArgs, **funcKwargs)
(out, infodict, ier, mesg) = [None]*4
try:
(out, infodict, ier, mesg) = scipy.optimize.fsolve(
func=cf, x0=((2*S.rand())-0.5), full_output=1, xtol=1.0e-04)
if ier == 1:
lcfitlogger.debug( "Successful fsolve\n")
else:
lcfitlogger.warning("Problem with fsolve. ier = %s, mesg = \"%s.\"\n %s\n" % \
(ier, mesg.replace('\n', ' '), infodict))
except Exception, e:
lcfitlogger.error( "Exception with fsolve: \"%s\". Catching and ignoring..." % e)
def __call__(self, session=None, form=None):
""" Deal with registration data"""
data = f2d(form)
# Log
lcfitlogger.debug( 'LcRegistrationProcess: __call__')
## Clean and check data, display error and return if necessary.
for k in ['USERNAME', 'PASSWORD', 'EMAIL', 'FULLNAME', 'REASONS', 'HOWFIND', 'AFFILIATION']:
if (not data.has_key(k)) or LCFIT_EMPTY_ALL_RE.match(data[k]): # Error
err_mess = 'Empty strings or other bad data in form: "%s".<br>Please use the back button and correct.' % (k)
sl = [{'TITLE':'Registration Error','LC_ERROR_MESSAGE':err_mess}]
formTemplate = Template.Template(file=self.errorTemplate, searchList = sl,
compilerSettings={'prioritizeSearchListOverSelf' : True})
sys.stdout.write("Content-type: text/html")
sys.stdout.write(str(formTemplate))
sys.stdout.flush()
return(0)
if k in ('USERNAME', 'PASSWORD'):
data[k] = re.sub('\s*', '', data[k])
data[k] = data[k].strip()
data[k] = data[k].replace("'", "")
## Insert info into db (email will be sent by daily sweeper)
try:
self.lcdb.insertRegRequest(data)
except LcException, e:
lcfitlogger.error( 'Bad Registration request: %s.' % pprint.pformat(e))
if re.match('.*pending.*', str(e)):
sys.stdout.write("Status: 303\nLocation: %s\n\n" % LCFIT_PREV_PEND_ERROR_PAGE)
sys.stdout.flush()
elif re.match('.*in-use.*', str(e)):
sys.stdout.write("Status: 303\nLocation: %s\n\n" % LCFIT_PREV_REG_ERROR_PAGE)
sys.stdout.flush()
else:
raise
