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Bring python up to date ...

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From: D'Arcy J.M. Cain <darcy@druid.net>
This commit is contained in:
Marc G. Fournier
1999-05-19 14:46:54 +00:00
parent 77ebed09f5
commit 9487ad8409
5 changed files with 492 additions and 246 deletions
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28
src/interfaces/python/pg.py
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@ -25,7 +25,7 @@ def _quote(d, t):
return "'f'"
if d == "": return "null"
return "'%s'" % string.strip(re.sub('\'', '\'\'', "%s" % d))
return "'%s'" % string.strip(re.sub("'", "''", "%s" % d))
class DB:
"""This class wraps the pg connection type"""
@ -175,16 +175,30 @@ class DB:
# reload the dictionary to catch things modified by engine
# note that get() changes 'oid' below to oid_table
return self.get(cl, a, 'oid')
# if no read perms (it can and does happen) return None
try: return self.get(cl, a, 'oid')
except: return None
# update always works on the oid which get returns
# Update always works on the oid which get returns if available
# otherwise use the primary key. Fail if neither.
def update(self, cl, a):
q = "SELECT oid FROM %s WHERE oid = %s" % (cl, a['oid_%s' % cl])
foid = 'oid_%s' % cl
pk = self.pkeys[cl]
if a.has_key(foid):
where = "oid = %s" % a[foid]
elif a.has_key(pk):
where = "%s = '%s'" % (pk, a[pk])
else:
raise error, "Update needs key (%s) or oid as %s" % (pk, foid)
q = "SELECT oid FROM %s WHERE %s" % (cl, where)
if self.debug != None: print self.debug % q
res = self.db.query(q).getresult()
if len(res) < 1:
raise error, "No record in %s where oid = %s (%s)" % \
(cl, a['oid_%s' % cl], sys.exc_value)
raise error, "No record in %s where %s (%s)" % \
(cl, where, sys.exc_value)
else: a[foid] = res[0][0]
v = []
k = 0
@ -199,7 +213,7 @@ class DB:
try:
q = "UPDATE %s SET %s WHERE oid = %s" % \
(cl, string.join(v, ','), a['oid_%s' % cl])
(cl, string.join(v, ','), a[foid])
if self.debug != None: print self.debug % q
self.db.query(q)
except: